14663 lines
546 KiB
JavaScript
14663 lines
546 KiB
JavaScript
/**
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* Less - Leaner CSS v4.6.4
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* http://lesscss.org
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*
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* Copyright (c) 2009-2026, Alexis Sellier <self@cloudhead.net>
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* Licensed under the Apache-2.0 License.
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*
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* @license Apache-2.0
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*/
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(function (global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
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typeof define === 'function' && define.amd ? define(factory) :
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(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.less = factory());
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})(this, (function () { 'use strict';
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// Export a new default each time
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function defaultOptions() {
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return {
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/* Inline Javascript - @plugin still allowed */
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javascriptEnabled: false,
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/* Outputs a makefile import dependency list to stdout. */
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depends: false,
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/* (DEPRECATED) Compress using less built-in compression.
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* This does an okay job but does not utilise all the tricks of
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* dedicated css compression. */
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compress: false,
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/* Runs the less parser and just reports errors without any output. */
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lint: false,
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/* Sets available include paths.
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* If the file in an @import rule does not exist at that exact location,
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* less will look for it at the location(s) passed to this option.
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* You might use this for instance to specify a path to a library which
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* you want to be referenced simply and relatively in the less files. */
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paths: [],
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/* color output in the terminal */
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color: true,
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/**
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* @deprecated This option has confusing behavior and may be removed in a future version.
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*
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* When true, prevents @import statements for .less files from being evaluated inside
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* selector blocks (rulesets). The imports are silently ignored and not output.
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*
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* Behavior:
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* - @import at root level: Always processed
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* - @import inside @-rules (@media, @supports, etc.): Processed (these are not selector blocks)
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* - @import inside selector blocks (.class, #id, etc.): NOT processed (silently ignored)
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*
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* When false (default): All @import statements are processed regardless of context.
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*
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* Note: Despite the name "strict", this option does NOT throw an error when imports
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* are used in selector blocks - it silently ignores them. This is confusing
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* behavior that may catch users off guard.
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*
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* Note: Only affects .less file imports. CSS imports (url(...) or .css files) are
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* always output as CSS @import statements regardless of this setting.
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*
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* @see https://github.com/less/less.js/issues/656
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*/
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strictImports: false,
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/* Allow Imports from Insecure HTTPS Hosts */
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insecure: false,
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/* Allows you to add a path to every generated import and url in your css.
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* This does not affect less import statements that are processed, just ones
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* that are left in the output css. */
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rootpath: '',
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/* By default URLs are kept as-is, so if you import a file in a sub-directory
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* that references an image, exactly the same URL will be output in the css.
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* This option allows you to re-write URL's in imported files so that the
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* URL is always relative to the base imported file */
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rewriteUrls: false,
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/* How to process math
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* 0 always - eagerly try to solve all operations
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* 1 parens-division - require parens for division "/"
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* 2 parens | strict - require parens for all operations
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* 3 strict-legacy - legacy strict behavior (super-strict)
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*/
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math: 1,
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/* Without this option, less attempts to guess at the output unit when it does maths. */
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strictUnits: false,
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/* Effectively the declaration is put at the top of your base Less file,
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* meaning it can be used but it also can be overridden if this variable
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* is defined in the file. */
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globalVars: null,
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/* As opposed to the global variable option, this puts the declaration at the
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* end of your base file, meaning it will override anything defined in your Less file. */
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modifyVars: null,
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/* This option allows you to specify a argument to go on to every URL. */
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urlArgs: ''
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}
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}
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/** @param {string} href */
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function extractId(href) {
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return href.replace(/^[a-z-]+:\/+?[^/]+/, '') // Remove protocol & domain
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.replace(/[?&]livereload=\w+/, '') // Remove LiveReload cachebuster
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.replace(/^\//, '') // Remove root /
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.replace(/\.[a-zA-Z]+$/, '') // Remove simple extension
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.replace(/[^.\w-]+/g, '-') // Replace illegal characters
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.replace(/\./g, ':'); // Replace dots with colons(for valid id)
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}
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/**
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* @param {Record<string, *>} options
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* @param {HTMLElement | null} tag
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*/
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function addDataAttr(options, tag) {
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if (!tag) {return;} // in case of tag is null or undefined
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for (const opt in tag.dataset) {
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if (Object.prototype.hasOwnProperty.call(tag.dataset, opt)) {
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if (opt === 'env' || opt === 'dumpLineNumbers' || opt === 'rootpath' || opt === 'errorReporting') {
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options[opt] = tag.dataset[opt];
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} else {
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try {
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options[opt] = JSON.parse(tag.dataset[opt]);
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}
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catch (_) {}
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}
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}
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}
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}
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var browser$1 = {
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createCSS: function (document, styles, sheet) {
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// Strip the query-string
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const href = sheet.href || '';
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// If there is no title set, use the filename, minus the extension
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const id = `less:${sheet.title || extractId(href)}`;
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// If this has already been inserted into the DOM, we may need to replace it
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const oldStyleNode = document.getElementById(id);
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let keepOldStyleNode = false;
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// Create a new stylesheet node for insertion or (if necessary) replacement
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const styleNode = document.createElement('style');
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styleNode.setAttribute('type', 'text/css');
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if (sheet.media) {
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styleNode.setAttribute('media', sheet.media);
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}
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styleNode.id = id;
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if (!styleNode.styleSheet) {
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styleNode.appendChild(document.createTextNode(styles));
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// If new contents match contents of oldStyleNode, don't replace oldStyleNode
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keepOldStyleNode = (oldStyleNode !== null && oldStyleNode.childNodes.length > 0 && styleNode.childNodes.length > 0 &&
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oldStyleNode.firstChild.nodeValue === styleNode.firstChild.nodeValue);
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}
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const head = document.getElementsByTagName('head')[0];
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// If there is no oldStyleNode, just append; otherwise, only append if we need
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// to replace oldStyleNode with an updated stylesheet
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if (oldStyleNode === null || keepOldStyleNode === false) {
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const nextEl = sheet && sheet.nextSibling || null;
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if (nextEl) {
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nextEl.parentNode.insertBefore(styleNode, nextEl);
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} else {
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head.appendChild(styleNode);
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}
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}
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if (oldStyleNode && keepOldStyleNode === false) {
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oldStyleNode.parentNode.removeChild(oldStyleNode);
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}
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// For IE.
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// This needs to happen *after* the style element is added to the DOM, otherwise IE 7 and 8 may crash.
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// See http://social.msdn.microsoft.com/Forums/en-US/7e081b65-878a-4c22-8e68-c10d39c2ed32/internet-explorer-crashes-appending-style-element-to-head
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if (styleNode.styleSheet) {
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try {
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styleNode.styleSheet.cssText = styles;
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} catch (e) {
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throw new Error('Couldn\'t reassign styleSheet.cssText.');
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}
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}
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},
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currentScript: function(window) {
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const document = window.document;
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return document.currentScript || (() => {
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const scripts = document.getElementsByTagName('script');
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return scripts[scripts.length - 1];
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})();
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}
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};
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/**
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* @param {Window} window
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* @param {Record<string, *>} options
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*/
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var addDefaultOptions = (window, options) => {
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// use options from the current script tag data attribues
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addDataAttr(options, browser$1.currentScript(window));
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if (options.isFileProtocol === undefined) {
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options.isFileProtocol = /^(file|(chrome|safari)(-extension)?|resource|qrc|app):/.test(window.location.protocol);
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}
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// Load styles asynchronously (default: false)
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//
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// This is set to `false` by default, so that the body
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// doesn't start loading before the stylesheets are parsed.
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// Setting this to `true` can result in flickering.
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//
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options.async = options.async || false;
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options.fileAsync = options.fileAsync || false;
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// Interval between watch polls
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options.poll = options.poll || (options.isFileProtocol ? 1000 : 1500);
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options.env = options.env || (window.location.hostname == '127.0.0.1' ||
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window.location.hostname == '0.0.0.0' ||
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window.location.hostname == 'localhost' ||
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(window.location.port &&
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window.location.port.length > 0) ||
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options.isFileProtocol ? 'development'
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: 'production');
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const dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(window.location.hash);
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if (dumpLineNumbers) {
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options.dumpLineNumbers = dumpLineNumbers[1];
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}
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if (options.useFileCache === undefined) {
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options.useFileCache = true;
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}
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if (options.onReady === undefined) {
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options.onReady = true;
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}
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if (options.relativeUrls) {
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options.rewriteUrls = 'all';
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}
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};
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var logger$1 = {
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error: function(msg) {
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this._fireEvent('error', msg);
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},
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warn: function(msg) {
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this._fireEvent('warn', msg);
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},
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info: function(msg) {
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this._fireEvent('info', msg);
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},
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debug: function(msg) {
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this._fireEvent('debug', msg);
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},
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addListener: function(listener) {
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this._listeners.push(listener);
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},
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removeListener: function(listener) {
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for (let i = 0; i < this._listeners.length; i++) {
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if (this._listeners[i] === listener) {
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this._listeners.splice(i, 1);
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return;
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}
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}
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},
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_fireEvent: function(type, msg) {
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for (let i = 0; i < this._listeners.length; i++) {
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const logFunction = this._listeners[i][type];
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if (logFunction) {
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logFunction(msg);
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}
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}
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},
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_listeners: []
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};
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/**
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* @todo Document why this abstraction exists, and the relationship between
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* environment, file managers, and plugin manager
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*/
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class Environment {
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constructor(externalEnvironment, fileManagers) {
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this.fileManagers = fileManagers || [];
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externalEnvironment = externalEnvironment || {};
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const optionalFunctions = ['encodeBase64', 'mimeLookup', 'charsetLookup', 'getSourceMapGenerator'];
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const requiredFunctions = [];
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const functions = requiredFunctions.concat(optionalFunctions);
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for (let i = 0; i < functions.length; i++) {
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const propName = functions[i];
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const environmentFunc = externalEnvironment[propName];
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if (environmentFunc) {
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this[propName] = environmentFunc.bind(externalEnvironment);
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} else if (i < requiredFunctions.length) {
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this.warn(`missing required function in environment - ${propName}`);
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}
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}
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}
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getFileManager(filename, currentDirectory, options, environment, isSync) {
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if (!filename) {
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logger$1.warn('getFileManager called with no filename.. Please report this issue. continuing.');
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}
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if (currentDirectory === undefined) {
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logger$1.warn('getFileManager called with null directory.. Please report this issue. continuing.');
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}
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let fileManagers = this.fileManagers;
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if (options.pluginManager) {
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fileManagers = [].concat(fileManagers).concat(options.pluginManager.getFileManagers());
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}
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for (let i = fileManagers.length - 1; i >= 0 ; i--) {
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const fileManager = fileManagers[i];
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if (fileManager[isSync ? 'supportsSync' : 'supports'](filename, currentDirectory, options, environment)) {
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return fileManager;
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}
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}
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return null;
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}
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addFileManager(fileManager) {
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this.fileManagers.push(fileManager);
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}
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clearFileManagers() {
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this.fileManagers = [];
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}
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}
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var colors = {
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'aliceblue':'#f0f8ff',
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'antiquewhite':'#faebd7',
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'aqua':'#00ffff',
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'aquamarine':'#7fffd4',
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'azure':'#f0ffff',
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'beige':'#f5f5dc',
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'bisque':'#ffe4c4',
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'black':'#000000',
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'blanchedalmond':'#ffebcd',
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'blue':'#0000ff',
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'blueviolet':'#8a2be2',
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'brown':'#a52a2a',
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'burlywood':'#deb887',
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'cadetblue':'#5f9ea0',
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'chartreuse':'#7fff00',
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'chocolate':'#d2691e',
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'coral':'#ff7f50',
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'cornflowerblue':'#6495ed',
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'cornsilk':'#fff8dc',
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'crimson':'#dc143c',
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'cyan':'#00ffff',
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'darkblue':'#00008b',
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'darkcyan':'#008b8b',
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'darkgoldenrod':'#b8860b',
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'darkgray':'#a9a9a9',
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'darkgrey':'#a9a9a9',
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'darkgreen':'#006400',
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'darkkhaki':'#bdb76b',
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'darkmagenta':'#8b008b',
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'darkolivegreen':'#556b2f',
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'darkorange':'#ff8c00',
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'darkorchid':'#9932cc',
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'darkred':'#8b0000',
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'darksalmon':'#e9967a',
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'darkseagreen':'#8fbc8f',
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'darkslateblue':'#483d8b',
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'darkslategray':'#2f4f4f',
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'darkslategrey':'#2f4f4f',
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'darkturquoise':'#00ced1',
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'darkviolet':'#9400d3',
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'deeppink':'#ff1493',
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'deepskyblue':'#00bfff',
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'dimgray':'#696969',
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'dimgrey':'#696969',
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'dodgerblue':'#1e90ff',
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'firebrick':'#b22222',
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'floralwhite':'#fffaf0',
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'forestgreen':'#228b22',
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'fuchsia':'#ff00ff',
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'gainsboro':'#dcdcdc',
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'ghostwhite':'#f8f8ff',
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'gold':'#ffd700',
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'goldenrod':'#daa520',
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'gray':'#808080',
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'grey':'#808080',
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'green':'#008000',
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'greenyellow':'#adff2f',
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'honeydew':'#f0fff0',
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'hotpink':'#ff69b4',
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'indianred':'#cd5c5c',
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'indigo':'#4b0082',
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'ivory':'#fffff0',
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'khaki':'#f0e68c',
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'lavender':'#e6e6fa',
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'lavenderblush':'#fff0f5',
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'lawngreen':'#7cfc00',
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'lemonchiffon':'#fffacd',
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'lightblue':'#add8e6',
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'lightcoral':'#f08080',
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'lightcyan':'#e0ffff',
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'lightgoldenrodyellow':'#fafad2',
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'lightgray':'#d3d3d3',
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'lightgrey':'#d3d3d3',
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'lightgreen':'#90ee90',
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'lightpink':'#ffb6c1',
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'lightsalmon':'#ffa07a',
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'lightseagreen':'#20b2aa',
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'lightskyblue':'#87cefa',
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'lightslategray':'#778899',
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'lightslategrey':'#778899',
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'lightsteelblue':'#b0c4de',
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'lightyellow':'#ffffe0',
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'lime':'#00ff00',
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'limegreen':'#32cd32',
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'linen':'#faf0e6',
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'magenta':'#ff00ff',
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'maroon':'#800000',
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'mediumaquamarine':'#66cdaa',
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'mediumblue':'#0000cd',
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'mediumorchid':'#ba55d3',
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'mediumpurple':'#9370d8',
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'mediumseagreen':'#3cb371',
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'mediumslateblue':'#7b68ee',
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'mediumspringgreen':'#00fa9a',
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'mediumturquoise':'#48d1cc',
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'mediumvioletred':'#c71585',
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'midnightblue':'#191970',
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'mintcream':'#f5fffa',
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'mistyrose':'#ffe4e1',
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'moccasin':'#ffe4b5',
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'navajowhite':'#ffdead',
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'navy':'#000080',
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'oldlace':'#fdf5e6',
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'olive':'#808000',
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'olivedrab':'#6b8e23',
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'orange':'#ffa500',
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'orangered':'#ff4500',
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'orchid':'#da70d6',
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'palegoldenrod':'#eee8aa',
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'palegreen':'#98fb98',
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'paleturquoise':'#afeeee',
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'palevioletred':'#d87093',
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'papayawhip':'#ffefd5',
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'peachpuff':'#ffdab9',
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'peru':'#cd853f',
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'pink':'#ffc0cb',
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'plum':'#dda0dd',
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'powderblue':'#b0e0e6',
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'purple':'#800080',
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'rebeccapurple':'#663399',
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'red':'#ff0000',
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'rosybrown':'#bc8f8f',
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'royalblue':'#4169e1',
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'saddlebrown':'#8b4513',
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'salmon':'#fa8072',
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'sandybrown':'#f4a460',
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'seagreen':'#2e8b57',
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'seashell':'#fff5ee',
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'sienna':'#a0522d',
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'silver':'#c0c0c0',
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'skyblue':'#87ceeb',
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'slateblue':'#6a5acd',
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'slategray':'#708090',
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'slategrey':'#708090',
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'snow':'#fffafa',
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'springgreen':'#00ff7f',
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'steelblue':'#4682b4',
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'tan':'#d2b48c',
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'teal':'#008080',
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'thistle':'#d8bfd8',
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'tomato':'#ff6347',
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'turquoise':'#40e0d0',
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'violet':'#ee82ee',
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'wheat':'#f5deb3',
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'white':'#ffffff',
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'whitesmoke':'#f5f5f5',
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'yellow':'#ffff00',
|
|
'yellowgreen':'#9acd32'
|
|
};
|
|
|
|
var unitConversions = {
|
|
length: {
|
|
'm': 1,
|
|
'cm': 0.01,
|
|
'mm': 0.001,
|
|
'in': 0.0254,
|
|
'px': 0.0254 / 96,
|
|
'pt': 0.0254 / 72,
|
|
'pc': 0.0254 / 72 * 12
|
|
},
|
|
duration: {
|
|
's': 1,
|
|
'ms': 0.001
|
|
},
|
|
angle: {
|
|
'rad': 1 / (2 * Math.PI),
|
|
'deg': 1 / 360,
|
|
'grad': 1 / 400,
|
|
'turn': 1
|
|
}
|
|
};
|
|
|
|
var data = { colors, unitConversions };
|
|
|
|
// @ts-check
|
|
/**
|
|
* @typedef {object} FileInfo
|
|
* @property {string} [filename]
|
|
* @property {string} [rootpath]
|
|
* @property {string} [currentDirectory]
|
|
* @property {string} [rootFilename]
|
|
* @property {string} [entryPath]
|
|
* @property {boolean} [reference]
|
|
*/
|
|
|
|
/**
|
|
* @typedef {object} VisibilityInfo
|
|
* @property {number} [visibilityBlocks]
|
|
* @property {boolean} [nodeVisible]
|
|
*/
|
|
|
|
/**
|
|
* @typedef {object} CSSOutput
|
|
* @property {(chunk: string, fileInfo?: FileInfo, index?: number, mapLines?: boolean) => void} add
|
|
* @property {() => boolean} isEmpty
|
|
*/
|
|
|
|
/**
|
|
* @typedef {object} EvalContext
|
|
* @property {number} [numPrecision]
|
|
* @property {(op?: string) => boolean} [isMathOn]
|
|
* @property {number} [math]
|
|
* @property {Node[]} [frames]
|
|
* @property {Array<{important?: string}>} [importantScope]
|
|
* @property {string[]} [paths]
|
|
* @property {boolean} [compress]
|
|
* @property {boolean} [strictUnits]
|
|
* @property {boolean} [sourceMap]
|
|
* @property {boolean} [importMultiple]
|
|
* @property {string} [urlArgs]
|
|
* @property {boolean} [javascriptEnabled]
|
|
* @property {object} [pluginManager]
|
|
* @property {number} [rewriteUrls]
|
|
* @property {boolean} [inCalc]
|
|
* @property {boolean} [mathOn]
|
|
* @property {boolean[]} [calcStack]
|
|
* @property {boolean[]} [parensStack]
|
|
* @property {Node[]} [mediaBlocks]
|
|
* @property {Node[]} [mediaPath]
|
|
* @property {() => void} [inParenthesis]
|
|
* @property {() => void} [outOfParenthesis]
|
|
* @property {() => void} [enterCalc]
|
|
* @property {() => void} [exitCalc]
|
|
* @property {(path: string) => boolean} [pathRequiresRewrite]
|
|
* @property {(path: string, rootpath?: string) => string} [rewritePath]
|
|
* @property {(path: string) => string} [normalizePath]
|
|
* @property {number} [tabLevel]
|
|
* @property {boolean} [lastRule]
|
|
*/
|
|
|
|
/**
|
|
* @typedef {object} TreeVisitor
|
|
* @property {(node: Node) => Node} visit
|
|
* @property {(nodes: Node[], nonReplacing?: boolean) => Node[]} visitArray
|
|
*/
|
|
|
|
/**
|
|
* The reason why Node is a class and other nodes simply do not extend
|
|
* from Node (since we're transpiling) is due to this issue:
|
|
*
|
|
* @see https://github.com/less/less.js/issues/3434
|
|
*/
|
|
class Node {
|
|
get type() { return ''; }
|
|
|
|
constructor() {
|
|
/** @type {Node | null} */
|
|
this.parent = null;
|
|
/** @type {number | undefined} */
|
|
this.visibilityBlocks = undefined;
|
|
/** @type {boolean | undefined} */
|
|
this.nodeVisible = undefined;
|
|
/** @type {Node | null} */
|
|
this.rootNode = null;
|
|
/** @type {Node | null} */
|
|
this.parsed = null;
|
|
|
|
/** @type {Node | Node[] | string | number | undefined} */
|
|
this.value = undefined;
|
|
/** @type {number | undefined} */
|
|
this._index = undefined;
|
|
/** @type {FileInfo | undefined} */
|
|
this._fileInfo = undefined;
|
|
}
|
|
|
|
get currentFileInfo() {
|
|
return this.fileInfo();
|
|
}
|
|
|
|
get index() {
|
|
return this.getIndex();
|
|
}
|
|
|
|
/**
|
|
* @param {Node | Node[]} nodes
|
|
* @param {Node} parent
|
|
*/
|
|
setParent(nodes, parent) {
|
|
/** @param {Node} node */
|
|
function set(node) {
|
|
if (node && node instanceof Node) {
|
|
node.parent = parent;
|
|
}
|
|
}
|
|
if (Array.isArray(nodes)) {
|
|
nodes.forEach(set);
|
|
}
|
|
else {
|
|
set(nodes);
|
|
}
|
|
}
|
|
|
|
/** @returns {number} */
|
|
getIndex() {
|
|
return this._index || (this.parent && this.parent.getIndex()) || 0;
|
|
}
|
|
|
|
/** @returns {FileInfo} */
|
|
fileInfo() {
|
|
return this._fileInfo || (this.parent && this.parent.fileInfo()) || {};
|
|
}
|
|
|
|
/** @returns {boolean} */
|
|
isRulesetLike() { return false; }
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {string}
|
|
*/
|
|
toCSS(context) {
|
|
/** @type {string[]} */
|
|
const strs = [];
|
|
this.genCSS(context, {
|
|
add: function(chunk, fileInfo, index) {
|
|
strs.push(chunk);
|
|
},
|
|
isEmpty: function () {
|
|
return strs.length === 0;
|
|
}
|
|
});
|
|
return strs.join('');
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
output.add(/** @type {string} */ (this.value));
|
|
}
|
|
|
|
/**
|
|
* @param {TreeVisitor} visitor
|
|
*/
|
|
accept(visitor) {
|
|
this.value = visitor.visit(/** @type {Node} */ (this.value));
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} [context]
|
|
* @returns {Node}
|
|
*/
|
|
eval(context) { return this; }
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {string} op
|
|
* @param {number} a
|
|
* @param {number} b
|
|
* @returns {number | undefined}
|
|
*/
|
|
_operate(context, op, a, b) {
|
|
switch (op) {
|
|
case '+': return a + b;
|
|
case '-': return a - b;
|
|
case '*': return a * b;
|
|
case '/': return a / b;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {number} value
|
|
* @returns {number}
|
|
*/
|
|
fround(context, value) {
|
|
const precision = context && context.numPrecision;
|
|
// add "epsilon" to ensure numbers like 1.000000005 (represented as 1.000000004999...) are properly rounded:
|
|
return (precision) ? Number((value + 2e-16).toFixed(precision)) : value;
|
|
}
|
|
|
|
/**
|
|
* @param {Node & { compare?: (other: Node) => number | undefined }} a
|
|
* @param {Node & { compare?: (other: Node) => number | undefined }} b
|
|
* @returns {number | undefined}
|
|
*/
|
|
static compare(a, b) {
|
|
/* returns:
|
|
-1: a < b
|
|
0: a = b
|
|
1: a > b
|
|
and *any* other value for a != b (e.g. undefined, NaN, -2 etc.) */
|
|
|
|
if ((a.compare) &&
|
|
// for "symmetric results" force toCSS-based comparison
|
|
// of Quoted or Anonymous if either value is one of those
|
|
!(b.type === 'Quoted' || b.type === 'Anonymous')) {
|
|
return a.compare(b);
|
|
} else if (b.compare) {
|
|
return -b.compare(a);
|
|
} else if (a.type !== b.type) {
|
|
return undefined;
|
|
}
|
|
|
|
let aVal = a.value;
|
|
let bVal = b.value;
|
|
if (!Array.isArray(aVal)) {
|
|
return aVal === bVal ? 0 : undefined;
|
|
}
|
|
if (!Array.isArray(bVal)) {
|
|
return undefined;
|
|
}
|
|
if (aVal.length !== bVal.length) {
|
|
return undefined;
|
|
}
|
|
for (let i = 0; i < aVal.length; i++) {
|
|
if (Node.compare(aVal[i], bVal[i]) !== 0) {
|
|
return undefined;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @param {number | string} a
|
|
* @param {number | string} b
|
|
* @returns {number | undefined}
|
|
*/
|
|
static numericCompare(a, b) {
|
|
return a < b ? -1
|
|
: a === b ? 0
|
|
: a > b ? 1 : undefined;
|
|
}
|
|
|
|
/** @returns {boolean} */
|
|
blocksVisibility() {
|
|
if (this.visibilityBlocks === undefined) {
|
|
this.visibilityBlocks = 0;
|
|
}
|
|
return this.visibilityBlocks !== 0;
|
|
}
|
|
|
|
addVisibilityBlock() {
|
|
if (this.visibilityBlocks === undefined) {
|
|
this.visibilityBlocks = 0;
|
|
}
|
|
this.visibilityBlocks = this.visibilityBlocks + 1;
|
|
}
|
|
|
|
removeVisibilityBlock() {
|
|
if (this.visibilityBlocks === undefined) {
|
|
this.visibilityBlocks = 0;
|
|
}
|
|
this.visibilityBlocks = this.visibilityBlocks - 1;
|
|
}
|
|
|
|
ensureVisibility() {
|
|
this.nodeVisible = true;
|
|
}
|
|
|
|
ensureInvisibility() {
|
|
this.nodeVisible = false;
|
|
}
|
|
|
|
/** @returns {boolean | undefined} */
|
|
isVisible() {
|
|
return this.nodeVisible;
|
|
}
|
|
|
|
/** @returns {VisibilityInfo} */
|
|
visibilityInfo() {
|
|
return {
|
|
visibilityBlocks: this.visibilityBlocks,
|
|
nodeVisible: this.nodeVisible
|
|
};
|
|
}
|
|
|
|
/** @param {VisibilityInfo} info */
|
|
copyVisibilityInfo(info) {
|
|
if (!info) {
|
|
return;
|
|
}
|
|
this.visibilityBlocks = info.visibilityBlocks;
|
|
this.nodeVisible = info.nodeVisible;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set by the parser at runtime on Node.prototype.
|
|
* @type {{ context: EvalContext, importManager: object, imports: object } | undefined}
|
|
*/
|
|
Node.prototype.parse = undefined;
|
|
|
|
// @ts-check
|
|
|
|
/** @import { EvalContext, CSSOutput } from './node.js' */
|
|
|
|
//
|
|
// RGB Colors - #ff0014, #eee
|
|
//
|
|
class Color extends Node {
|
|
get type() { return 'Color'; }
|
|
|
|
/**
|
|
* @param {number[] | string} rgb
|
|
* @param {number} [a]
|
|
* @param {string} [originalForm]
|
|
*/
|
|
constructor(rgb, a, originalForm) {
|
|
super();
|
|
const self = this;
|
|
//
|
|
// The end goal here, is to parse the arguments
|
|
// into an integer triplet, such as `128, 255, 0`
|
|
//
|
|
// This facilitates operations and conversions.
|
|
//
|
|
if (Array.isArray(rgb)) {
|
|
/** @type {number[]} */
|
|
this.rgb = rgb;
|
|
} else if (rgb.length >= 6) {
|
|
/** @type {number[]} */
|
|
this.rgb = [];
|
|
/** @type {RegExpMatchArray} */ (rgb.match(/.{2}/g)).map(function (c, i) {
|
|
if (i < 3) {
|
|
self.rgb.push(parseInt(c, 16));
|
|
} else {
|
|
self.alpha = (parseInt(c, 16)) / 255;
|
|
}
|
|
});
|
|
} else {
|
|
/** @type {number[]} */
|
|
this.rgb = [];
|
|
rgb.split('').map(function (c, i) {
|
|
if (i < 3) {
|
|
self.rgb.push(parseInt(c + c, 16));
|
|
} else {
|
|
self.alpha = (parseInt(c + c, 16)) / 255;
|
|
}
|
|
});
|
|
}
|
|
/** @type {number} */
|
|
if (typeof this.alpha === 'undefined') {
|
|
this.alpha = (typeof a === 'number') ? a : 1;
|
|
}
|
|
if (typeof originalForm !== 'undefined') {
|
|
this.value = originalForm;
|
|
}
|
|
}
|
|
|
|
luma() {
|
|
let r = this.rgb[0] / 255, g = this.rgb[1] / 255, b = this.rgb[2] / 255;
|
|
|
|
r = (r <= 0.03928) ? r / 12.92 : Math.pow(((r + 0.055) / 1.055), 2.4);
|
|
g = (g <= 0.03928) ? g / 12.92 : Math.pow(((g + 0.055) / 1.055), 2.4);
|
|
b = (b <= 0.03928) ? b / 12.92 : Math.pow(((b + 0.055) / 1.055), 2.4);
|
|
|
|
return 0.2126 * r + 0.7152 * g + 0.0722 * b;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
output.add(this.toCSS(context));
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {boolean} [doNotCompress]
|
|
* @returns {string}
|
|
*/
|
|
toCSS(context, doNotCompress) {
|
|
const compress = context && context.compress && !doNotCompress;
|
|
let color;
|
|
let alpha;
|
|
/** @type {string | undefined} */
|
|
let colorFunction;
|
|
/** @type {(string | number)[]} */
|
|
let args = [];
|
|
|
|
// `value` is set if this color was originally
|
|
// converted from a named color string so we need
|
|
// to respect this and try to output named color too.
|
|
alpha = this.fround(context, this.alpha);
|
|
|
|
if (this.value) {
|
|
if (/** @type {string} */ (this.value).indexOf('rgb') === 0) {
|
|
if (alpha < 1) {
|
|
colorFunction = 'rgba';
|
|
}
|
|
} else if (/** @type {string} */ (this.value).indexOf('hsl') === 0) {
|
|
if (alpha < 1) {
|
|
colorFunction = 'hsla';
|
|
} else {
|
|
colorFunction = 'hsl';
|
|
}
|
|
} else {
|
|
return /** @type {string} */ (this.value);
|
|
}
|
|
} else {
|
|
if (alpha < 1) {
|
|
colorFunction = 'rgba';
|
|
}
|
|
}
|
|
|
|
switch (colorFunction) {
|
|
case 'rgba':
|
|
args = this.rgb.map(function (c) {
|
|
return clamp$1(Math.round(c), 255);
|
|
}).concat(clamp$1(alpha, 1));
|
|
break;
|
|
case 'hsla':
|
|
args.push(clamp$1(alpha, 1));
|
|
// eslint-disable-next-line no-fallthrough
|
|
case 'hsl':
|
|
color = this.toHSL();
|
|
args = [
|
|
this.fround(context, color.h),
|
|
`${this.fround(context, color.s * 100)}%`,
|
|
`${this.fround(context, color.l * 100)}%`
|
|
].concat(args);
|
|
}
|
|
|
|
if (colorFunction) {
|
|
// Values are capped between `0` and `255`, rounded and zero-padded.
|
|
return `${colorFunction}(${args.join(`,${compress ? '' : ' '}`)})`;
|
|
}
|
|
|
|
color = this.toRGB();
|
|
|
|
if (compress) {
|
|
const splitcolor = color.split('');
|
|
|
|
// Convert color to short format
|
|
if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) {
|
|
color = `#${splitcolor[1]}${splitcolor[3]}${splitcolor[5]}`;
|
|
}
|
|
}
|
|
|
|
return color;
|
|
}
|
|
|
|
//
|
|
// Operations have to be done per-channel, if not,
|
|
// channels will spill onto each other. Once we have
|
|
// our result, in the form of an integer triplet,
|
|
// we create a new Color node to hold the result.
|
|
//
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {string} op
|
|
* @param {Color} other
|
|
*/
|
|
operate(context, op, other) {
|
|
const rgb = new Array(3);
|
|
const alpha = this.alpha * (1 - other.alpha) + other.alpha;
|
|
for (let c = 0; c < 3; c++) {
|
|
rgb[c] = this._operate(context, op, this.rgb[c], other.rgb[c]);
|
|
}
|
|
return new Color(rgb, alpha);
|
|
}
|
|
|
|
toRGB() {
|
|
return toHex(this.rgb);
|
|
}
|
|
|
|
toHSL() {
|
|
const r = this.rgb[0] / 255, g = this.rgb[1] / 255, b = this.rgb[2] / 255, a = this.alpha;
|
|
|
|
const max = Math.max(r, g, b), min = Math.min(r, g, b);
|
|
/** @type {number} */
|
|
let h;
|
|
let s;
|
|
const l = (max + min) / 2;
|
|
const d = max - min;
|
|
|
|
if (max === min) {
|
|
h = s = 0;
|
|
} else {
|
|
s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
|
|
|
|
switch (max) {
|
|
case r: h = (g - b) / d + (g < b ? 6 : 0); break;
|
|
case g: h = (b - r) / d + 2; break;
|
|
case b: h = (r - g) / d + 4; break;
|
|
}
|
|
/** @type {number} */ (h) /= 6;
|
|
}
|
|
return { h: /** @type {number} */ (h) * 360, s, l, a };
|
|
}
|
|
|
|
// Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript
|
|
toHSV() {
|
|
const r = this.rgb[0] / 255, g = this.rgb[1] / 255, b = this.rgb[2] / 255, a = this.alpha;
|
|
|
|
const max = Math.max(r, g, b), min = Math.min(r, g, b);
|
|
/** @type {number} */
|
|
let h;
|
|
let s;
|
|
const v = max;
|
|
|
|
const d = max - min;
|
|
if (max === 0) {
|
|
s = 0;
|
|
} else {
|
|
s = d / max;
|
|
}
|
|
|
|
if (max === min) {
|
|
h = 0;
|
|
} else {
|
|
switch (max) {
|
|
case r: h = (g - b) / d + (g < b ? 6 : 0); break;
|
|
case g: h = (b - r) / d + 2; break;
|
|
case b: h = (r - g) / d + 4; break;
|
|
}
|
|
/** @type {number} */ (h) /= 6;
|
|
}
|
|
return { h: /** @type {number} */ (h) * 360, s, v, a };
|
|
}
|
|
|
|
toARGB() {
|
|
return toHex([this.alpha * 255].concat(this.rgb));
|
|
}
|
|
|
|
/**
|
|
* @param {Node & { rgb?: number[], alpha?: number }} x
|
|
* @returns {0 | undefined}
|
|
*/
|
|
compare(x) {
|
|
return (x.rgb &&
|
|
x.rgb[0] === this.rgb[0] &&
|
|
x.rgb[1] === this.rgb[1] &&
|
|
x.rgb[2] === this.rgb[2] &&
|
|
x.alpha === this.alpha) ? 0 : undefined;
|
|
}
|
|
|
|
/** @param {string} keyword */
|
|
static fromKeyword(keyword) {
|
|
/** @type {Color | undefined} */
|
|
let c;
|
|
const key = keyword.toLowerCase();
|
|
// eslint-disable-next-line no-prototype-builtins
|
|
if (colors.hasOwnProperty(key)) {
|
|
c = new Color(/** @type {string} */ (colors[/** @type {keyof typeof colors} */ (key)]).slice(1));
|
|
}
|
|
else if (key === 'transparent') {
|
|
c = new Color([0, 0, 0], 0);
|
|
}
|
|
|
|
if (c) {
|
|
c.value = keyword;
|
|
return c;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {number} v
|
|
* @param {number} max
|
|
*/
|
|
function clamp$1(v, max) {
|
|
return Math.min(Math.max(v, 0), max);
|
|
}
|
|
|
|
/** @param {number[]} v */
|
|
function toHex(v) {
|
|
return `#${v.map(function (c) {
|
|
c = clamp$1(Math.round(c), 255);
|
|
return (c < 16 ? '0' : '') + c.toString(16);
|
|
}).join('')}`;
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class Paren extends Node {
|
|
get type() { return 'Paren'; }
|
|
|
|
/** @param {Node} node */
|
|
constructor(node) {
|
|
super();
|
|
this.value = node;
|
|
/** @type {boolean | undefined} */
|
|
this.noSpacing = undefined;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
output.add('(');
|
|
/** @type {Node} */ (this.value).genCSS(context, output);
|
|
output.add(')');
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {Paren}
|
|
*/
|
|
eval(context) {
|
|
const paren = new Paren(/** @type {Node} */ (this.value).eval(context));
|
|
|
|
if (this.noSpacing) {
|
|
paren.noSpacing = true;
|
|
}
|
|
|
|
return paren;
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
/** @import { EvalContext, CSSOutput } from './node.js' */
|
|
|
|
/** @type {Record<string, boolean>} */
|
|
const _noSpaceCombinators = {
|
|
'': true,
|
|
' ': true,
|
|
'|': true
|
|
};
|
|
|
|
class Combinator extends Node {
|
|
get type() { return 'Combinator'; }
|
|
|
|
/** @param {string} value */
|
|
constructor(value) {
|
|
super();
|
|
if (value === ' ') {
|
|
this.value = ' ';
|
|
this.emptyOrWhitespace = true;
|
|
} else {
|
|
this.value = value ? value.trim() : '';
|
|
this.emptyOrWhitespace = this.value === '';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
const spaceOrEmpty = (context.compress || _noSpaceCombinators[/** @type {string} */ (this.value)]) ? '' : ' ';
|
|
output.add(spaceOrEmpty + this.value + spaceOrEmpty);
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class Element extends Node {
|
|
get type() { return 'Element'; }
|
|
|
|
/**
|
|
* @param {Combinator | string} combinator
|
|
* @param {string | Node} value
|
|
* @param {boolean} [isVariable]
|
|
* @param {number} [index]
|
|
* @param {FileInfo} [currentFileInfo]
|
|
* @param {VisibilityInfo} [visibilityInfo]
|
|
*/
|
|
constructor(combinator, value, isVariable, index, currentFileInfo, visibilityInfo) {
|
|
super();
|
|
this.combinator = combinator instanceof Combinator ?
|
|
combinator : new Combinator(combinator);
|
|
|
|
if (typeof value === 'string') {
|
|
this.value = value.trim();
|
|
} else if (value) {
|
|
this.value = value;
|
|
} else {
|
|
this.value = '';
|
|
}
|
|
/** @type {boolean | undefined} */
|
|
this.isVariable = isVariable;
|
|
this._index = index;
|
|
this._fileInfo = currentFileInfo;
|
|
this.copyVisibilityInfo(visibilityInfo);
|
|
this.setParent(this.combinator, this);
|
|
}
|
|
|
|
/** @param {TreeVisitor} visitor */
|
|
accept(visitor) {
|
|
const value = this.value;
|
|
this.combinator = /** @type {Combinator} */ (visitor.visit(this.combinator));
|
|
if (typeof value === 'object') {
|
|
this.value = visitor.visit(/** @type {Node} */ (value));
|
|
}
|
|
}
|
|
|
|
/** @param {EvalContext} context */
|
|
eval(context) {
|
|
return new Element(this.combinator,
|
|
/** @type {Node} */ (this.value).eval ? /** @type {Node} */ (this.value).eval(context) : /** @type {string} */ (this.value),
|
|
this.isVariable,
|
|
this.getIndex(),
|
|
this.fileInfo(), this.visibilityInfo());
|
|
}
|
|
|
|
clone() {
|
|
return new Element(this.combinator,
|
|
/** @type {string | Node} */ (this.value),
|
|
this.isVariable,
|
|
this.getIndex(),
|
|
this.fileInfo(), this.visibilityInfo());
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
output.add(this.toCSS(context), this.fileInfo(), this.getIndex());
|
|
}
|
|
|
|
/** @param {EvalContext} [context] */
|
|
toCSS(context) {
|
|
/** @type {EvalContext & { firstSelector?: boolean }} */
|
|
const ctx = context || {};
|
|
let value = this.value;
|
|
const firstSelector = ctx.firstSelector;
|
|
if (value instanceof Paren) {
|
|
// selector in parens should not be affected by outer selector
|
|
// flags (breaks only interpolated selectors - see #1973)
|
|
ctx.firstSelector = true;
|
|
}
|
|
value = /** @type {Node} */ (value).toCSS ? /** @type {Node} */ (value).toCSS(ctx) : /** @type {string} */ (value);
|
|
ctx.firstSelector = firstSelector;
|
|
if (value === '' && this.combinator.value.charAt(0) === '&') {
|
|
return '';
|
|
} else {
|
|
return this.combinator.toCSS(ctx) + value;
|
|
}
|
|
}
|
|
}
|
|
|
|
const Math$1 = {
|
|
ALWAYS: 0,
|
|
PARENS_DIVISION: 1,
|
|
PARENS: 2
|
|
// removed - STRICT_LEGACY: 3
|
|
};
|
|
|
|
const RewriteUrls = {
|
|
OFF: 0,
|
|
LOCAL: 1,
|
|
ALL: 2
|
|
};
|
|
|
|
function getType(payload) {
|
|
return Object.prototype.toString.call(payload).slice(8, -1);
|
|
}
|
|
|
|
function isArray(payload) {
|
|
return getType(payload) === "Array";
|
|
}
|
|
|
|
function isPlainObject(payload) {
|
|
if (getType(payload) !== "Object")
|
|
return false;
|
|
const prototype = Object.getPrototypeOf(payload);
|
|
return !!prototype && prototype.constructor === Object && prototype === Object.prototype;
|
|
}
|
|
|
|
function assignProp(carry, key, newVal, originalObject, includeNonenumerable) {
|
|
const propType = {}.propertyIsEnumerable.call(originalObject, key) ? "enumerable" : "nonenumerable";
|
|
if (propType === "enumerable")
|
|
carry[key] = newVal;
|
|
if (includeNonenumerable && propType === "nonenumerable") {
|
|
Object.defineProperty(carry, key, {
|
|
value: newVal,
|
|
enumerable: false,
|
|
writable: true,
|
|
configurable: true
|
|
});
|
|
}
|
|
}
|
|
function copy(target, options = {}) {
|
|
if (isArray(target)) {
|
|
return target.map((item) => copy(item, options));
|
|
}
|
|
if (!isPlainObject(target)) {
|
|
return target;
|
|
}
|
|
const props = Object.getOwnPropertyNames(target);
|
|
const symbols = Object.getOwnPropertySymbols(target);
|
|
return [...props, ...symbols].reduce((carry, key) => {
|
|
if (isArray(options.props) && !options.props.includes(key)) {
|
|
return carry;
|
|
}
|
|
const val = target[key];
|
|
const newVal = copy(val, options);
|
|
assignProp(carry, key, newVal, target, options.nonenumerable);
|
|
return carry;
|
|
}, {});
|
|
}
|
|
|
|
/* jshint proto: true */
|
|
|
|
function getLocation(index, inputStream) {
|
|
let n = index + 1;
|
|
let line = null;
|
|
let column = -1;
|
|
|
|
while (--n >= 0 && inputStream.charAt(n) !== '\n') {
|
|
column++;
|
|
}
|
|
|
|
if (typeof index === 'number') {
|
|
line = (inputStream.slice(0, index).match(/\n/g) || '').length;
|
|
}
|
|
|
|
return {
|
|
line,
|
|
column
|
|
};
|
|
}
|
|
|
|
function copyArray(arr) {
|
|
let i;
|
|
const length = arr.length;
|
|
const copy = new Array(length);
|
|
|
|
for (i = 0; i < length; i++) {
|
|
copy[i] = arr[i];
|
|
}
|
|
return copy;
|
|
}
|
|
|
|
function clone(obj) {
|
|
const cloned = {};
|
|
for (const prop in obj) {
|
|
if (Object.prototype.hasOwnProperty.call(obj, prop)) {
|
|
cloned[prop] = obj[prop];
|
|
}
|
|
}
|
|
return cloned;
|
|
}
|
|
|
|
function defaults(obj1, obj2) {
|
|
let newObj = obj2 || {};
|
|
if (!obj2._defaults) {
|
|
newObj = {};
|
|
const defaults = copy(obj1);
|
|
newObj._defaults = defaults;
|
|
const cloned = obj2 ? copy(obj2) : {};
|
|
Object.assign(newObj, defaults, cloned);
|
|
}
|
|
return newObj;
|
|
}
|
|
|
|
function copyOptions(obj1, obj2) {
|
|
if (obj2 && obj2._defaults) {
|
|
return obj2;
|
|
}
|
|
const opts = defaults(obj1, obj2);
|
|
if (opts.strictMath) {
|
|
opts.math = Math$1.PARENS;
|
|
}
|
|
// Back compat with changed relativeUrls option
|
|
if (opts.relativeUrls) {
|
|
opts.rewriteUrls = RewriteUrls.ALL;
|
|
}
|
|
if (typeof opts.math === 'string') {
|
|
switch (opts.math.toLowerCase()) {
|
|
case 'always':
|
|
opts.math = Math$1.ALWAYS;
|
|
break;
|
|
case 'parens-division':
|
|
opts.math = Math$1.PARENS_DIVISION;
|
|
break;
|
|
case 'strict':
|
|
case 'parens':
|
|
opts.math = Math$1.PARENS;
|
|
break;
|
|
default:
|
|
opts.math = Math$1.PARENS;
|
|
}
|
|
}
|
|
if (typeof opts.rewriteUrls === 'string') {
|
|
switch (opts.rewriteUrls.toLowerCase()) {
|
|
case 'off':
|
|
opts.rewriteUrls = RewriteUrls.OFF;
|
|
break;
|
|
case 'local':
|
|
opts.rewriteUrls = RewriteUrls.LOCAL;
|
|
break;
|
|
case 'all':
|
|
opts.rewriteUrls = RewriteUrls.ALL;
|
|
break;
|
|
}
|
|
}
|
|
return opts;
|
|
}
|
|
|
|
function merge(obj1, obj2) {
|
|
for (const prop in obj2) {
|
|
if (Object.prototype.hasOwnProperty.call(obj2, prop)) {
|
|
obj1[prop] = obj2[prop];
|
|
}
|
|
}
|
|
return obj1;
|
|
}
|
|
|
|
function flattenArray(arr, result = []) {
|
|
for (let i = 0, length = arr.length; i < length; i++) {
|
|
const value = arr[i];
|
|
if (Array.isArray(value)) {
|
|
flattenArray(value, result);
|
|
} else {
|
|
if (value !== undefined) {
|
|
result.push(value);
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
function isNullOrUndefined(val) {
|
|
return val === null || val === undefined
|
|
}
|
|
|
|
var utils = /*#__PURE__*/Object.freeze({
|
|
__proto__: null,
|
|
getLocation: getLocation,
|
|
copyArray: copyArray,
|
|
clone: clone,
|
|
defaults: defaults,
|
|
copyOptions: copyOptions,
|
|
merge: merge,
|
|
flattenArray: flattenArray,
|
|
isNullOrUndefined: isNullOrUndefined
|
|
});
|
|
|
|
const anonymousFunc = /(<anonymous>|Function):(\d+):(\d+)/;
|
|
|
|
/**
|
|
* This is a centralized class of any error that could be thrown internally (mostly by the parser).
|
|
* Besides standard .message it keeps some additional data like a path to the file where the error
|
|
* occurred along with line and column numbers.
|
|
*
|
|
* @class
|
|
* @extends Error
|
|
* @type {module.LessError}
|
|
*
|
|
* @prop {string} type
|
|
* @prop {string} filename
|
|
* @prop {number} index
|
|
* @prop {number} line
|
|
* @prop {number} column
|
|
* @prop {number} callLine
|
|
* @prop {number} callExtract
|
|
* @prop {string[]} extract
|
|
*
|
|
* @param {Object} e - An error object to wrap around or just a descriptive object
|
|
* @param {Object} fileContentMap - An object with file contents in 'contents' property (like importManager) @todo - move to fileManager?
|
|
* @param {string} [currentFilename]
|
|
*/
|
|
const LessError = function(e, fileContentMap, currentFilename) {
|
|
Error.call(this);
|
|
|
|
const filename = e.filename || currentFilename;
|
|
|
|
this.message = e.message;
|
|
this.stack = e.stack;
|
|
|
|
// Set type early so it's always available, even if fileContentMap is missing
|
|
this.type = e.type || 'Syntax';
|
|
|
|
if (fileContentMap && filename) {
|
|
const input = fileContentMap.contents[filename];
|
|
const loc = getLocation(e.index, input);
|
|
var line = loc.line;
|
|
const col = loc.column;
|
|
const callLine = e.call && getLocation(e.call, input).line;
|
|
const lines = input ? input.split('\n') : '';
|
|
|
|
this.filename = filename;
|
|
this.index = e.index;
|
|
this.line = typeof line === 'number' ? line + 1 : null;
|
|
this.column = col;
|
|
|
|
if (!this.line && this.stack) {
|
|
const found = this.stack.match(anonymousFunc);
|
|
|
|
/**
|
|
* We have to figure out how this environment stringifies anonymous functions
|
|
* so we can correctly map plugin errors.
|
|
*
|
|
* Note, in Node 8, the output of anonymous funcs varied based on parameters
|
|
* being present or not, so we inject dummy params.
|
|
*/
|
|
const func = new Function('a', 'throw new Error()');
|
|
let lineAdjust = 0;
|
|
try {
|
|
func();
|
|
} catch (e) {
|
|
const match = e.stack.match(anonymousFunc);
|
|
lineAdjust = 1 - parseInt(match[2]);
|
|
}
|
|
|
|
if (found) {
|
|
if (found[2]) {
|
|
this.line = parseInt(found[2]) + lineAdjust;
|
|
}
|
|
if (found[3]) {
|
|
this.column = parseInt(found[3]);
|
|
}
|
|
}
|
|
}
|
|
|
|
this.callLine = callLine + 1;
|
|
this.callExtract = lines[callLine];
|
|
|
|
this.extract = [
|
|
lines[this.line - 2],
|
|
lines[this.line - 1],
|
|
lines[this.line]
|
|
];
|
|
}
|
|
|
|
};
|
|
|
|
if (typeof Object.create === 'undefined') {
|
|
const F = function () {};
|
|
F.prototype = Error.prototype;
|
|
LessError.prototype = new F();
|
|
} else {
|
|
LessError.prototype = Object.create(Error.prototype);
|
|
}
|
|
|
|
LessError.prototype.constructor = LessError;
|
|
|
|
/**
|
|
* An overridden version of the default Object.prototype.toString
|
|
* which uses additional information to create a helpful message.
|
|
*
|
|
* @param {Object} options
|
|
* @returns {string}
|
|
*/
|
|
LessError.prototype.toString = function(options) {
|
|
options = options || {};
|
|
const isWarning = (this.type ?? '').toLowerCase().includes('warning');
|
|
const type = isWarning ? this.type : `${this.type}Error`;
|
|
const color = isWarning ? 'yellow' : 'red';
|
|
|
|
let message = '';
|
|
const extract = this.extract || [];
|
|
let error = [];
|
|
let stylize = function (str) { return str; };
|
|
if (options.stylize) {
|
|
const type = typeof options.stylize;
|
|
if (type !== 'function') {
|
|
throw Error(`options.stylize should be a function, got a ${type}!`);
|
|
}
|
|
stylize = options.stylize;
|
|
}
|
|
|
|
if (this.line !== null) {
|
|
if (!isWarning && typeof extract[0] === 'string') {
|
|
error.push(stylize(`${this.line - 1} ${extract[0]}`, 'grey'));
|
|
}
|
|
|
|
if (typeof extract[1] === 'string') {
|
|
let errorTxt = `${this.line} `;
|
|
if (extract[1]) {
|
|
errorTxt += extract[1].slice(0, this.column) +
|
|
stylize(stylize(stylize(extract[1].slice(this.column, this.column + 1), 'bold') +
|
|
extract[1].slice(this.column + 1), 'red'), 'inverse');
|
|
}
|
|
error.push(errorTxt);
|
|
}
|
|
|
|
if (!isWarning && typeof extract[2] === 'string') {
|
|
error.push(stylize(`${this.line + 1} ${extract[2]}`, 'grey'));
|
|
}
|
|
error = `${error.join('\n') + stylize('', 'reset')}\n`;
|
|
}
|
|
|
|
message += stylize(`${type}: ${this.message}`, color);
|
|
if (this.filename) {
|
|
message += stylize(' in ', color) + this.filename;
|
|
}
|
|
if (this.line) {
|
|
message += stylize(` on line ${this.line}, column ${this.column + 1}:`, 'grey');
|
|
}
|
|
|
|
message += `\n${error}`;
|
|
|
|
if (this.callLine) {
|
|
message += `${stylize('from ', color) + (this.filename || '')}/n`;
|
|
message += `${stylize(this.callLine, 'grey')} ${this.callExtract}/n`;
|
|
}
|
|
|
|
return message;
|
|
};
|
|
|
|
const _visitArgs = { visitDeeper: true };
|
|
let _hasIndexed = false;
|
|
|
|
function _noop(node) {
|
|
return node;
|
|
}
|
|
|
|
function indexNodeTypes(parent, ticker) {
|
|
// add .typeIndex to tree node types for lookup table
|
|
let key, child;
|
|
for (key in parent) {
|
|
/* eslint guard-for-in: 0 */
|
|
child = parent[key];
|
|
switch (typeof child) {
|
|
case 'function':
|
|
// ignore bound functions directly on tree which do not have a prototype
|
|
// or aren't nodes
|
|
if (child.prototype && child.prototype.type) {
|
|
child.prototype.typeIndex = ticker++;
|
|
}
|
|
break;
|
|
case 'object':
|
|
ticker = indexNodeTypes(child, ticker);
|
|
break;
|
|
|
|
}
|
|
}
|
|
return ticker;
|
|
}
|
|
|
|
class Visitor {
|
|
constructor(implementation) {
|
|
this._implementation = implementation;
|
|
this._visitInCache = {};
|
|
this._visitOutCache = {};
|
|
|
|
if (!_hasIndexed) {
|
|
indexNodeTypes(tree, 1);
|
|
_hasIndexed = true;
|
|
}
|
|
}
|
|
|
|
visit(node) {
|
|
if (!node) {
|
|
return node;
|
|
}
|
|
|
|
const nodeTypeIndex = node.typeIndex;
|
|
if (!nodeTypeIndex) {
|
|
// MixinCall args aren't a node type?
|
|
if (node.value && node.value.typeIndex) {
|
|
this.visit(node.value);
|
|
}
|
|
return node;
|
|
}
|
|
|
|
const impl = this._implementation;
|
|
let func = this._visitInCache[nodeTypeIndex];
|
|
let funcOut = this._visitOutCache[nodeTypeIndex];
|
|
const visitArgs = _visitArgs;
|
|
let fnName;
|
|
|
|
visitArgs.visitDeeper = true;
|
|
|
|
if (!func) {
|
|
fnName = `visit${node.type}`;
|
|
func = impl[fnName] || _noop;
|
|
funcOut = impl[`${fnName}Out`] || _noop;
|
|
this._visitInCache[nodeTypeIndex] = func;
|
|
this._visitOutCache[nodeTypeIndex] = funcOut;
|
|
}
|
|
|
|
if (func !== _noop) {
|
|
const newNode = func.call(impl, node, visitArgs);
|
|
if (node && impl.isReplacing) {
|
|
node = newNode;
|
|
}
|
|
}
|
|
|
|
if (visitArgs.visitDeeper && node) {
|
|
if (node.length) {
|
|
for (let i = 0, cnt = node.length; i < cnt; i++) {
|
|
if (node[i].accept) {
|
|
node[i].accept(this);
|
|
}
|
|
}
|
|
} else if (node.accept) {
|
|
node.accept(this);
|
|
}
|
|
}
|
|
|
|
if (funcOut != _noop) {
|
|
funcOut.call(impl, node);
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
visitArray(nodes, nonReplacing) {
|
|
if (!nodes) {
|
|
return nodes;
|
|
}
|
|
|
|
const cnt = nodes.length;
|
|
let i;
|
|
|
|
// Non-replacing
|
|
if (nonReplacing || !this._implementation.isReplacing) {
|
|
for (i = 0; i < cnt; i++) {
|
|
this.visit(nodes[i]);
|
|
}
|
|
return nodes;
|
|
}
|
|
|
|
// Replacing
|
|
const out = [];
|
|
for (i = 0; i < cnt; i++) {
|
|
const evald = this.visit(nodes[i]);
|
|
if (evald === undefined) { continue; }
|
|
if (!evald.splice) {
|
|
out.push(evald);
|
|
} else if (evald.length) {
|
|
this.flatten(evald, out);
|
|
}
|
|
}
|
|
return out;
|
|
}
|
|
|
|
flatten(arr, out) {
|
|
if (!out) {
|
|
out = [];
|
|
}
|
|
|
|
let cnt, i, item, nestedCnt, j, nestedItem;
|
|
|
|
for (i = 0, cnt = arr.length; i < cnt; i++) {
|
|
item = arr[i];
|
|
if (item === undefined) {
|
|
continue;
|
|
}
|
|
if (!item.splice) {
|
|
out.push(item);
|
|
continue;
|
|
}
|
|
|
|
for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) {
|
|
nestedItem = item[j];
|
|
if (nestedItem === undefined) {
|
|
continue;
|
|
}
|
|
if (!nestedItem.splice) {
|
|
out.push(nestedItem);
|
|
} else if (nestedItem.length) {
|
|
this.flatten(nestedItem, out);
|
|
}
|
|
}
|
|
}
|
|
|
|
return out;
|
|
}
|
|
}
|
|
|
|
const contexts = {};
|
|
|
|
const copyFromOriginal = function copyFromOriginal(original, destination, propertiesToCopy) {
|
|
if (!original) { return; }
|
|
|
|
for (let i = 0; i < propertiesToCopy.length; i++) {
|
|
if (Object.prototype.hasOwnProperty.call(original, propertiesToCopy[i])) {
|
|
destination[propertiesToCopy[i]] = original[propertiesToCopy[i]];
|
|
}
|
|
}
|
|
};
|
|
|
|
/*
|
|
parse is used whilst parsing
|
|
*/
|
|
const parseCopyProperties = [
|
|
// options
|
|
'paths', // option - unmodified - paths to search for imports on
|
|
'rewriteUrls', // option - whether to adjust URL's to be relative
|
|
'rootpath', // option - rootpath to append to URL's
|
|
'strictImports', // option -
|
|
'insecure', // option - whether to allow imports from insecure ssl hosts
|
|
'dumpLineNumbers', // option - @deprecated The dumpLineNumbers option is deprecated. Use sourcemaps instead. All modes ('comments', 'mediaquery', 'all') will be removed in a future version.
|
|
'compress', // option - whether to compress
|
|
'syncImport', // option - whether to import synchronously
|
|
'mime', // browser only - mime type for sheet import
|
|
'useFileCache', // browser only - whether to use the per file session cache
|
|
// context
|
|
'processImports', // option & context - whether to process imports. if false then imports will not be imported.
|
|
// Used by the import manager to stop multiple import visitors being created.
|
|
'pluginManager', // Used as the plugin manager for the session
|
|
'quiet', // option - whether to log warnings
|
|
'quietDeprecations', // option - whether to suppress deprecation warnings only
|
|
];
|
|
|
|
contexts.Parse = function(options) {
|
|
copyFromOriginal(options, this, parseCopyProperties);
|
|
|
|
if (typeof this.paths === 'string') { this.paths = [this.paths]; }
|
|
};
|
|
|
|
const evalCopyProperties = [
|
|
'paths', // additional include paths
|
|
'compress', // whether to compress
|
|
'math', // whether math has to be within parenthesis
|
|
'strictUnits', // whether units need to evaluate correctly
|
|
'sourceMap', // whether to output a source map
|
|
'importMultiple', // whether we are currently importing multiple copies
|
|
'urlArgs', // whether to add args into url tokens
|
|
'javascriptEnabled', // option - whether Inline JavaScript is enabled. if undefined, defaults to false
|
|
'pluginManager', // Used as the plugin manager for the session
|
|
'importantScope', // used to bubble up !important statements
|
|
'rewriteUrls' // option - whether to adjust URL's to be relative
|
|
];
|
|
|
|
contexts.Eval = function(options, frames) {
|
|
copyFromOriginal(options, this, evalCopyProperties);
|
|
|
|
if (typeof this.paths === 'string') { this.paths = [this.paths]; }
|
|
|
|
this.frames = frames || [];
|
|
this.importantScope = this.importantScope || [];
|
|
};
|
|
|
|
contexts.Eval.prototype.enterCalc = function () {
|
|
if (!this.calcStack) {
|
|
this.calcStack = [];
|
|
}
|
|
this.calcStack.push(true);
|
|
this.inCalc = true;
|
|
};
|
|
|
|
contexts.Eval.prototype.exitCalc = function () {
|
|
this.calcStack.pop();
|
|
if (!this.calcStack.length) {
|
|
this.inCalc = false;
|
|
}
|
|
};
|
|
|
|
contexts.Eval.prototype.inParenthesis = function () {
|
|
if (!this.parensStack) {
|
|
this.parensStack = [];
|
|
}
|
|
this.parensStack.push(true);
|
|
};
|
|
|
|
contexts.Eval.prototype.outOfParenthesis = function () {
|
|
this.parensStack.pop();
|
|
};
|
|
|
|
contexts.Eval.prototype.inCalc = false;
|
|
contexts.Eval.prototype.mathOn = true;
|
|
contexts.Eval.prototype.isMathOn = function (op) {
|
|
if (!this.mathOn) {
|
|
return false;
|
|
}
|
|
if (op === '/' && this.math !== Math$1.ALWAYS && (!this.parensStack || !this.parensStack.length)) {
|
|
return false;
|
|
}
|
|
if (this.math > Math$1.PARENS_DIVISION) {
|
|
return this.parensStack && this.parensStack.length;
|
|
}
|
|
return true;
|
|
};
|
|
|
|
contexts.Eval.prototype.pathRequiresRewrite = function (path) {
|
|
const isRelative = this.rewriteUrls === RewriteUrls.LOCAL ? isPathLocalRelative : isPathRelative;
|
|
|
|
return isRelative(path);
|
|
};
|
|
|
|
contexts.Eval.prototype.rewritePath = function (path, rootpath) {
|
|
let newPath;
|
|
|
|
rootpath = rootpath || '';
|
|
newPath = this.normalizePath(rootpath + path);
|
|
|
|
// If a path was explicit relative and the rootpath was not an absolute path
|
|
// we must ensure that the new path is also explicit relative.
|
|
if (isPathLocalRelative(path) &&
|
|
isPathRelative(rootpath) &&
|
|
isPathLocalRelative(newPath) === false) {
|
|
newPath = `./${newPath}`;
|
|
}
|
|
|
|
return newPath;
|
|
};
|
|
|
|
contexts.Eval.prototype.normalizePath = function (path) {
|
|
const segments = path.split('/').reverse();
|
|
let segment;
|
|
|
|
path = [];
|
|
while (segments.length !== 0) {
|
|
segment = segments.pop();
|
|
switch ( segment ) {
|
|
case '.':
|
|
break;
|
|
case '..':
|
|
if ((path.length === 0) || (path[path.length - 1] === '..')) {
|
|
path.push( segment );
|
|
} else {
|
|
path.pop();
|
|
}
|
|
break;
|
|
default:
|
|
path.push(segment);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return path.join('/');
|
|
};
|
|
|
|
function isPathRelative(path) {
|
|
return !/^(?:[a-z-]+:|\/|#)/i.test(path);
|
|
}
|
|
|
|
function isPathLocalRelative(path) {
|
|
return path.charAt(0) === '.';
|
|
}
|
|
|
|
// todo - do the same for the toCSS ?
|
|
|
|
class ImportSequencer {
|
|
constructor(onSequencerEmpty) {
|
|
this.imports = [];
|
|
this.variableImports = [];
|
|
this._onSequencerEmpty = onSequencerEmpty;
|
|
this._currentDepth = 0;
|
|
}
|
|
|
|
addImport(callback) {
|
|
const importSequencer = this,
|
|
importItem = {
|
|
callback,
|
|
args: null,
|
|
isReady: false
|
|
};
|
|
this.imports.push(importItem);
|
|
return function() {
|
|
importItem.args = Array.prototype.slice.call(arguments, 0);
|
|
importItem.isReady = true;
|
|
importSequencer.tryRun();
|
|
};
|
|
}
|
|
|
|
addVariableImport(callback) {
|
|
this.variableImports.push(callback);
|
|
}
|
|
|
|
tryRun() {
|
|
this._currentDepth++;
|
|
try {
|
|
while (true) {
|
|
while (this.imports.length > 0) {
|
|
const importItem = this.imports[0];
|
|
if (!importItem.isReady) {
|
|
return;
|
|
}
|
|
this.imports = this.imports.slice(1);
|
|
importItem.callback.apply(null, importItem.args);
|
|
}
|
|
if (this.variableImports.length === 0) {
|
|
break;
|
|
}
|
|
const variableImport = this.variableImports[0];
|
|
this.variableImports = this.variableImports.slice(1);
|
|
variableImport();
|
|
}
|
|
} finally {
|
|
this._currentDepth--;
|
|
}
|
|
if (this._currentDepth === 0 && this._onSequencerEmpty) {
|
|
this._onSequencerEmpty();
|
|
}
|
|
}
|
|
}
|
|
|
|
/* eslint-disable no-unused-vars */
|
|
|
|
const ImportVisitor = function(importer, finish) {
|
|
|
|
this._visitor = new Visitor(this);
|
|
this._importer = importer;
|
|
this._finish = finish;
|
|
this.context = new contexts.Eval();
|
|
this.importCount = 0;
|
|
this.onceFileDetectionMap = {};
|
|
this.recursionDetector = {};
|
|
this._sequencer = new ImportSequencer(this._onSequencerEmpty.bind(this));
|
|
};
|
|
|
|
ImportVisitor.prototype = {
|
|
isReplacing: false,
|
|
run: function (root) {
|
|
try {
|
|
// process the contents
|
|
this._visitor.visit(root);
|
|
}
|
|
catch (e) {
|
|
this.error = e;
|
|
}
|
|
|
|
this.isFinished = true;
|
|
this._sequencer.tryRun();
|
|
},
|
|
_onSequencerEmpty: function() {
|
|
if (!this.isFinished) {
|
|
return;
|
|
}
|
|
this._finish(this.error);
|
|
},
|
|
visitImport: function (importNode, visitArgs) {
|
|
const inlineCSS = importNode.options.inline;
|
|
|
|
if (!importNode.css || inlineCSS) {
|
|
|
|
const context = new contexts.Eval(this.context, copyArray(this.context.frames));
|
|
const importParent = context.frames[0];
|
|
|
|
this.importCount++;
|
|
if (importNode.isVariableImport()) {
|
|
this._sequencer.addVariableImport(this.processImportNode.bind(this, importNode, context, importParent));
|
|
} else {
|
|
this.processImportNode(importNode, context, importParent);
|
|
}
|
|
}
|
|
visitArgs.visitDeeper = false;
|
|
},
|
|
processImportNode: function(importNode, context, importParent) {
|
|
let evaldImportNode;
|
|
const inlineCSS = importNode.options.inline;
|
|
|
|
try {
|
|
evaldImportNode = importNode.evalForImport(context);
|
|
} catch (e) {
|
|
if (!e.filename) { e.index = importNode.getIndex(); e.filename = importNode.fileInfo().filename; }
|
|
// attempt to eval properly and treat as css
|
|
importNode.css = true;
|
|
// if that fails, this error will be thrown
|
|
importNode.error = e;
|
|
}
|
|
|
|
if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) {
|
|
|
|
if (evaldImportNode.options.multiple) {
|
|
context.importMultiple = true;
|
|
}
|
|
|
|
// try appending if we haven't determined if it is css or not
|
|
const tryAppendLessExtension = evaldImportNode.css === undefined;
|
|
|
|
for (let i = 0; i < importParent.rules.length; i++) {
|
|
if (importParent.rules[i] === importNode) {
|
|
importParent.rules[i] = evaldImportNode;
|
|
break;
|
|
}
|
|
}
|
|
|
|
const onImported = this.onImported.bind(this, evaldImportNode, context), sequencedOnImported = this._sequencer.addImport(onImported);
|
|
|
|
this._importer.push(evaldImportNode.getPath(), tryAppendLessExtension, evaldImportNode.fileInfo(),
|
|
evaldImportNode.options, sequencedOnImported);
|
|
} else {
|
|
this.importCount--;
|
|
if (this.isFinished) {
|
|
this._sequencer.tryRun();
|
|
}
|
|
}
|
|
},
|
|
onImported: function (importNode, context, e, root, importedAtRoot, fullPath) {
|
|
if (e) {
|
|
if (!e.filename) {
|
|
e.index = importNode.getIndex(); e.filename = importNode.fileInfo().filename;
|
|
}
|
|
this.error = e;
|
|
}
|
|
|
|
const importVisitor = this,
|
|
inlineCSS = importNode.options.inline,
|
|
isPlugin = importNode.options.isPlugin,
|
|
isOptional = importNode.options.optional,
|
|
duplicateImport = importedAtRoot || fullPath in importVisitor.recursionDetector;
|
|
|
|
if (!context.importMultiple) {
|
|
if (duplicateImport) {
|
|
importNode.skip = true;
|
|
} else {
|
|
importNode.skip = function() {
|
|
if (fullPath in importVisitor.onceFileDetectionMap) {
|
|
return true;
|
|
}
|
|
importVisitor.onceFileDetectionMap[fullPath] = true;
|
|
return false;
|
|
};
|
|
}
|
|
}
|
|
|
|
if (!fullPath && isOptional) {
|
|
importNode.skip = true;
|
|
}
|
|
|
|
if (root) {
|
|
importNode.root = root;
|
|
importNode.importedFilename = fullPath;
|
|
|
|
if (!inlineCSS && !isPlugin && (context.importMultiple || !duplicateImport)) {
|
|
importVisitor.recursionDetector[fullPath] = true;
|
|
|
|
const oldContext = this.context;
|
|
this.context = context;
|
|
try {
|
|
this._visitor.visit(root);
|
|
} catch (e) {
|
|
this.error = e;
|
|
}
|
|
this.context = oldContext;
|
|
}
|
|
}
|
|
|
|
importVisitor.importCount--;
|
|
|
|
if (importVisitor.isFinished) {
|
|
importVisitor._sequencer.tryRun();
|
|
}
|
|
},
|
|
visitDeclaration: function (declNode, visitArgs) {
|
|
if (declNode.value.type === 'DetachedRuleset') {
|
|
this.context.frames.unshift(declNode);
|
|
} else {
|
|
visitArgs.visitDeeper = false;
|
|
}
|
|
},
|
|
visitDeclarationOut: function(declNode) {
|
|
if (declNode.value.type === 'DetachedRuleset') {
|
|
this.context.frames.shift();
|
|
}
|
|
},
|
|
visitAtRule: function (atRuleNode, visitArgs) {
|
|
if (atRuleNode.value) {
|
|
this.context.frames.unshift(atRuleNode);
|
|
} else if (atRuleNode.declarations && atRuleNode.declarations.length) {
|
|
if (atRuleNode.isRooted) {
|
|
this.context.frames.unshift(atRuleNode);
|
|
} else {
|
|
this.context.frames.unshift(atRuleNode.declarations[0]);
|
|
}
|
|
} else if (atRuleNode.rules && atRuleNode.rules.length) {
|
|
this.context.frames.unshift(atRuleNode);
|
|
}
|
|
},
|
|
visitAtRuleOut: function (atRuleNode) {
|
|
this.context.frames.shift();
|
|
},
|
|
visitMixinDefinition: function (mixinDefinitionNode, visitArgs) {
|
|
this.context.frames.unshift(mixinDefinitionNode);
|
|
},
|
|
visitMixinDefinitionOut: function (mixinDefinitionNode) {
|
|
this.context.frames.shift();
|
|
},
|
|
visitRuleset: function (rulesetNode, visitArgs) {
|
|
this.context.frames.unshift(rulesetNode);
|
|
},
|
|
visitRulesetOut: function (rulesetNode) {
|
|
this.context.frames.shift();
|
|
},
|
|
visitMedia: function (mediaNode, visitArgs) {
|
|
this.context.frames.unshift(mediaNode.rules[0]);
|
|
},
|
|
visitMediaOut: function (mediaNode) {
|
|
this.context.frames.shift();
|
|
}
|
|
};
|
|
|
|
class SetTreeVisibilityVisitor {
|
|
/** @param {boolean} visible */
|
|
constructor(visible) {
|
|
this.visible = visible;
|
|
}
|
|
|
|
/** @param {Node} root */
|
|
run(root) {
|
|
this.visit(root);
|
|
}
|
|
|
|
/**
|
|
* @param {Node[]} nodes
|
|
* @returns {Node[]}
|
|
*/
|
|
visitArray(nodes) {
|
|
if (!nodes) {
|
|
return nodes;
|
|
}
|
|
|
|
const cnt = nodes.length;
|
|
let i;
|
|
for (i = 0; i < cnt; i++) {
|
|
this.visit(nodes[i]);
|
|
}
|
|
return nodes;
|
|
}
|
|
|
|
/**
|
|
* @param {*} node
|
|
* @returns {*}
|
|
*/
|
|
visit(node) {
|
|
if (!node) {
|
|
return node;
|
|
}
|
|
if (node.constructor === Array) {
|
|
return this.visitArray(node);
|
|
}
|
|
|
|
if (!node.blocksVisibility || node.blocksVisibility()) {
|
|
return node;
|
|
}
|
|
if (this.visible) {
|
|
node.ensureVisibility();
|
|
} else {
|
|
node.ensureInvisibility();
|
|
}
|
|
|
|
node.accept(this);
|
|
return node;
|
|
}
|
|
}
|
|
|
|
/* eslint-disable no-unused-vars */
|
|
|
|
/* jshint loopfunc:true */
|
|
|
|
class ExtendFinderVisitor {
|
|
constructor() {
|
|
this._visitor = new Visitor(this);
|
|
this.contexts = [];
|
|
this.allExtendsStack = [[]];
|
|
}
|
|
|
|
run(root) {
|
|
root = this._visitor.visit(root);
|
|
root.allExtends = this.allExtendsStack[0];
|
|
return root;
|
|
}
|
|
|
|
visitDeclaration(declNode, visitArgs) {
|
|
visitArgs.visitDeeper = false;
|
|
}
|
|
|
|
visitMixinDefinition(mixinDefinitionNode, visitArgs) {
|
|
visitArgs.visitDeeper = false;
|
|
}
|
|
|
|
visitRuleset(rulesetNode, visitArgs) {
|
|
if (rulesetNode.root) {
|
|
return;
|
|
}
|
|
|
|
let i;
|
|
let j;
|
|
let extend;
|
|
const allSelectorsExtendList = [];
|
|
let extendList;
|
|
|
|
// get &:extend(.a); rules which apply to all selectors in this ruleset
|
|
const rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0;
|
|
for (i = 0; i < ruleCnt; i++) {
|
|
if (rulesetNode.rules[i] instanceof tree.Extend) {
|
|
allSelectorsExtendList.push(rules[i]);
|
|
rulesetNode.extendOnEveryPath = true;
|
|
}
|
|
}
|
|
|
|
// now find every selector and apply the extends that apply to all extends
|
|
// and the ones which apply to an individual extend
|
|
const paths = rulesetNode.paths;
|
|
for (i = 0; i < paths.length; i++) {
|
|
const selectorPath = paths[i], selector = selectorPath[selectorPath.length - 1], selExtendList = selector.extendList;
|
|
|
|
extendList = selExtendList ? copyArray(selExtendList).concat(allSelectorsExtendList)
|
|
: allSelectorsExtendList;
|
|
|
|
if (extendList) {
|
|
extendList = extendList.map(function(allSelectorsExtend) {
|
|
return allSelectorsExtend.clone();
|
|
});
|
|
}
|
|
|
|
for (j = 0; j < extendList.length; j++) {
|
|
this.foundExtends = true;
|
|
extend = extendList[j];
|
|
extend.findSelfSelectors(selectorPath);
|
|
extend.ruleset = rulesetNode;
|
|
if (j === 0) { extend.firstExtendOnThisSelectorPath = true; }
|
|
this.allExtendsStack[this.allExtendsStack.length - 1].push(extend);
|
|
}
|
|
}
|
|
|
|
this.contexts.push(rulesetNode.selectors);
|
|
}
|
|
|
|
visitRulesetOut(rulesetNode) {
|
|
if (!rulesetNode.root) {
|
|
this.contexts.length = this.contexts.length - 1;
|
|
}
|
|
}
|
|
|
|
visitMedia(mediaNode, visitArgs) {
|
|
mediaNode.allExtends = [];
|
|
this.allExtendsStack.push(mediaNode.allExtends);
|
|
}
|
|
|
|
visitMediaOut(mediaNode) {
|
|
this.allExtendsStack.length = this.allExtendsStack.length - 1;
|
|
}
|
|
|
|
visitAtRule(atRuleNode, visitArgs) {
|
|
atRuleNode.allExtends = [];
|
|
this.allExtendsStack.push(atRuleNode.allExtends);
|
|
}
|
|
|
|
visitAtRuleOut(atRuleNode) {
|
|
this.allExtendsStack.length = this.allExtendsStack.length - 1;
|
|
}
|
|
}
|
|
|
|
class ProcessExtendsVisitor {
|
|
constructor() {
|
|
this._visitor = new Visitor(this);
|
|
}
|
|
|
|
run(root) {
|
|
const extendFinder = new ExtendFinderVisitor();
|
|
this.extendIndices = {};
|
|
extendFinder.run(root);
|
|
if (!extendFinder.foundExtends) { return root; }
|
|
root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends));
|
|
this.allExtendsStack = [root.allExtends];
|
|
const newRoot = this._visitor.visit(root);
|
|
this.checkExtendsForNonMatched(root.allExtends);
|
|
return newRoot;
|
|
}
|
|
|
|
checkExtendsForNonMatched(extendList) {
|
|
const indices = this.extendIndices;
|
|
extendList.filter(function(extend) {
|
|
return !extend.hasFoundMatches && extend.parent_ids.length == 1;
|
|
}).forEach(function(extend) {
|
|
let selector = '_unknown_';
|
|
try {
|
|
selector = extend.selector.toCSS({});
|
|
}
|
|
catch (_) {}
|
|
|
|
if (!indices[`${extend.index} ${selector}`]) {
|
|
indices[`${extend.index} ${selector}`] = true;
|
|
/**
|
|
* @todo Shouldn't this be an error? To alert the developer
|
|
* that they may have made an error in the selector they are
|
|
* targeting?
|
|
*/
|
|
logger$1.warn(`WARNING: extend '${selector}' has no matches`);
|
|
}
|
|
});
|
|
}
|
|
|
|
doExtendChaining(extendsList, extendsListTarget, iterationCount) {
|
|
//
|
|
// chaining is different from normal extension.. if we extend an extend then we are not just copying, altering
|
|
// and pasting the selector we would do normally, but we are also adding an extend with the same target selector
|
|
// this means this new extend can then go and alter other extends
|
|
//
|
|
// this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors
|
|
// this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already
|
|
// processed if we look at each selector at a time, as is done in visitRuleset
|
|
|
|
let extendIndex;
|
|
|
|
let targetExtendIndex;
|
|
let matches;
|
|
const extendsToAdd = [];
|
|
let newSelector;
|
|
const extendVisitor = this;
|
|
let selectorPath;
|
|
let extend;
|
|
let targetExtend;
|
|
let newExtend;
|
|
|
|
iterationCount = iterationCount || 0;
|
|
|
|
// loop through comparing every extend with every target extend.
|
|
// a target extend is the one on the ruleset we are looking at copy/edit/pasting in place
|
|
// e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one
|
|
// and the second is the target.
|
|
// the separation into two lists allows us to process a subset of chains with a bigger set, as is the
|
|
// case when processing media queries
|
|
for (extendIndex = 0; extendIndex < extendsList.length; extendIndex++) {
|
|
for (targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++) {
|
|
|
|
extend = extendsList[extendIndex];
|
|
targetExtend = extendsListTarget[targetExtendIndex];
|
|
|
|
// look for circular references
|
|
if ( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ) { continue; }
|
|
|
|
// find a match in the target extends self selector (the bit before :extend)
|
|
selectorPath = [targetExtend.selfSelectors[0]];
|
|
matches = extendVisitor.findMatch(extend, selectorPath);
|
|
|
|
if (matches.length) {
|
|
extend.hasFoundMatches = true;
|
|
|
|
// we found a match, so for each self selector..
|
|
extend.selfSelectors.forEach(function(selfSelector) {
|
|
const info = targetExtend.visibilityInfo();
|
|
|
|
// process the extend as usual
|
|
newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector, extend.isVisible());
|
|
|
|
// but now we create a new extend from it
|
|
newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0, targetExtend.fileInfo(), info);
|
|
newExtend.selfSelectors = newSelector;
|
|
|
|
// add the extend onto the list of extends for that selector
|
|
newSelector[newSelector.length - 1].extendList = [newExtend];
|
|
|
|
// record that we need to add it.
|
|
extendsToAdd.push(newExtend);
|
|
newExtend.ruleset = targetExtend.ruleset;
|
|
|
|
// remember its parents for circular references
|
|
newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids);
|
|
|
|
// only process the selector once.. if we have :extend(.a,.b) then multiple
|
|
// extends will look at the same selector path, so when extending
|
|
// we know that any others will be duplicates in terms of what is added to the css
|
|
if (targetExtend.firstExtendOnThisSelectorPath) {
|
|
newExtend.firstExtendOnThisSelectorPath = true;
|
|
targetExtend.ruleset.paths.push(newSelector);
|
|
}
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
if (extendsToAdd.length) {
|
|
// try to detect circular references to stop a stack overflow.
|
|
// may no longer be needed.
|
|
this.extendChainCount++;
|
|
if (iterationCount > 100) {
|
|
let selectorOne = '{unable to calculate}';
|
|
let selectorTwo = '{unable to calculate}';
|
|
try {
|
|
selectorOne = extendsToAdd[0].selfSelectors[0].toCSS();
|
|
selectorTwo = extendsToAdd[0].selector.toCSS();
|
|
}
|
|
catch (e) {}
|
|
throw { message: `extend circular reference detected. One of the circular extends is currently:${selectorOne}:extend(${selectorTwo})`};
|
|
}
|
|
|
|
// now process the new extends on the existing rules so that we can handle a extending b extending c extending
|
|
// d extending e...
|
|
return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount + 1));
|
|
} else {
|
|
return extendsToAdd;
|
|
}
|
|
}
|
|
|
|
visitDeclaration(ruleNode, visitArgs) {
|
|
visitArgs.visitDeeper = false;
|
|
}
|
|
|
|
visitMixinDefinition(mixinDefinitionNode, visitArgs) {
|
|
visitArgs.visitDeeper = false;
|
|
}
|
|
|
|
visitSelector(selectorNode, visitArgs) {
|
|
visitArgs.visitDeeper = false;
|
|
}
|
|
|
|
visitRuleset(rulesetNode, visitArgs) {
|
|
if (rulesetNode.root) {
|
|
return;
|
|
}
|
|
let matches;
|
|
const allExtends = this.allExtendsStack[this.allExtendsStack.length - 1];
|
|
const selectorsToAdd = [];
|
|
const paths = rulesetNode.paths;
|
|
const pathCount = paths.length;
|
|
|
|
// look at each selector path in the ruleset, find any extend matches and then copy, find and replace
|
|
|
|
for (let extendIndex = 0; extendIndex < allExtends.length; extendIndex++) {
|
|
const extend = allExtends[extendIndex];
|
|
for (let pathIndex = 0; pathIndex < pathCount; pathIndex++) {
|
|
const selectorPath = paths[pathIndex];
|
|
|
|
// extending extends happens initially, before the main pass
|
|
if (rulesetNode.extendOnEveryPath) { continue; }
|
|
const extendList = selectorPath[selectorPath.length - 1].extendList;
|
|
if (extendList && extendList.length) { continue; }
|
|
|
|
matches = this.findMatch(extend, selectorPath);
|
|
|
|
if (matches.length) {
|
|
extend.hasFoundMatches = true;
|
|
|
|
const selfSelectors = extend.selfSelectors;
|
|
const isVisible = extend.isVisible();
|
|
for (let si = 0; si < selfSelectors.length; si++) {
|
|
selectorsToAdd.push(this.extendSelector(matches, selectorPath, selfSelectors[si], isVisible));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
rulesetNode.paths = paths.concat(selectorsToAdd);
|
|
}
|
|
|
|
findMatch(extend, haystackSelectorPath) {
|
|
//
|
|
// look through the haystack selector path to try and find the needle - extend.selector
|
|
// returns an array of selector matches that can then be replaced
|
|
//
|
|
let haystackSelectorIndex;
|
|
|
|
let hackstackSelector;
|
|
let hackstackElementIndex;
|
|
let haystackElement;
|
|
let targetCombinator;
|
|
let i;
|
|
const needleElements = extend.selector.elements;
|
|
const potentialMatches = [];
|
|
let potentialMatch;
|
|
const matches = [];
|
|
|
|
// loop through the haystack elements
|
|
for (haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) {
|
|
hackstackSelector = haystackSelectorPath[haystackSelectorIndex];
|
|
|
|
for (hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) {
|
|
|
|
haystackElement = hackstackSelector.elements[hackstackElementIndex];
|
|
|
|
// if we allow elements before our match we can add a potential match every time. otherwise only at the first element.
|
|
if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) {
|
|
potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0,
|
|
initialCombinator: haystackElement.combinator});
|
|
}
|
|
|
|
for (i = 0; i < potentialMatches.length; i++) {
|
|
potentialMatch = potentialMatches[i];
|
|
|
|
// selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't
|
|
// then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to
|
|
// work out what the resulting combinator will be
|
|
targetCombinator = haystackElement.combinator.value;
|
|
if (targetCombinator === '' && hackstackElementIndex === 0) {
|
|
targetCombinator = ' ';
|
|
}
|
|
|
|
// if we don't match, null our match to indicate failure
|
|
if (!this.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) ||
|
|
(potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) {
|
|
potentialMatch = null;
|
|
} else {
|
|
potentialMatch.matched++;
|
|
}
|
|
|
|
// if we are still valid and have finished, test whether we have elements after and whether these are allowed
|
|
if (potentialMatch) {
|
|
potentialMatch.finished = potentialMatch.matched === needleElements.length;
|
|
if (potentialMatch.finished &&
|
|
(!extend.allowAfter &&
|
|
(hackstackElementIndex + 1 < hackstackSelector.elements.length || haystackSelectorIndex + 1 < haystackSelectorPath.length))) {
|
|
potentialMatch = null;
|
|
}
|
|
}
|
|
// if null we remove, if not, we are still valid, so either push as a valid match or continue
|
|
if (potentialMatch) {
|
|
if (potentialMatch.finished) {
|
|
potentialMatch.length = needleElements.length;
|
|
potentialMatch.endPathIndex = haystackSelectorIndex;
|
|
potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match
|
|
potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again
|
|
matches.push(potentialMatch);
|
|
}
|
|
} else {
|
|
potentialMatches.splice(i, 1);
|
|
i--;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return matches;
|
|
}
|
|
|
|
isElementValuesEqual(elementValue1, elementValue2) {
|
|
if (typeof elementValue1 === 'string' || typeof elementValue2 === 'string') {
|
|
return elementValue1 === elementValue2;
|
|
}
|
|
if (elementValue1 instanceof tree.Attribute) {
|
|
if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) {
|
|
return false;
|
|
}
|
|
if (!elementValue1.value || !elementValue2.value) {
|
|
if (elementValue1.value || elementValue2.value) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
elementValue1 = elementValue1.value.value || elementValue1.value;
|
|
elementValue2 = elementValue2.value.value || elementValue2.value;
|
|
return elementValue1 === elementValue2;
|
|
}
|
|
elementValue1 = elementValue1.value;
|
|
elementValue2 = elementValue2.value;
|
|
if (elementValue1 instanceof tree.Selector) {
|
|
if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) {
|
|
return false;
|
|
}
|
|
for (let i = 0; i < elementValue1.elements.length; i++) {
|
|
if (elementValue1.elements[i].combinator.value !== elementValue2.elements[i].combinator.value) {
|
|
if (i !== 0 || (elementValue1.elements[i].combinator.value || ' ') !== (elementValue2.elements[i].combinator.value || ' ')) {
|
|
return false;
|
|
}
|
|
}
|
|
if (!this.isElementValuesEqual(elementValue1.elements[i].value, elementValue2.elements[i].value)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
extendSelector(matches, selectorPath, replacementSelector, isVisible) {
|
|
|
|
// for a set of matches, replace each match with the replacement selector
|
|
|
|
let currentSelectorPathIndex = 0, currentSelectorPathElementIndex = 0, path = [], matchIndex, selector, firstElement, match, newElements;
|
|
|
|
for (matchIndex = 0; matchIndex < matches.length; matchIndex++) {
|
|
match = matches[matchIndex];
|
|
selector = selectorPath[match.pathIndex];
|
|
firstElement = new tree.Element(
|
|
match.initialCombinator,
|
|
replacementSelector.elements[0].value,
|
|
replacementSelector.elements[0].isVariable,
|
|
replacementSelector.elements[0].getIndex(),
|
|
replacementSelector.elements[0].fileInfo()
|
|
);
|
|
|
|
if (match.pathIndex > currentSelectorPathIndex && currentSelectorPathElementIndex > 0) {
|
|
path[path.length - 1].elements = path[path.length - 1]
|
|
.elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex));
|
|
currentSelectorPathElementIndex = 0;
|
|
currentSelectorPathIndex++;
|
|
}
|
|
|
|
newElements = selector.elements
|
|
.slice(currentSelectorPathElementIndex, match.index)
|
|
.concat([firstElement])
|
|
.concat(replacementSelector.elements.slice(1));
|
|
|
|
if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) {
|
|
path[path.length - 1].elements =
|
|
path[path.length - 1].elements.concat(newElements);
|
|
} else {
|
|
path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex));
|
|
|
|
path.push(new tree.Selector(
|
|
newElements
|
|
));
|
|
}
|
|
currentSelectorPathIndex = match.endPathIndex;
|
|
currentSelectorPathElementIndex = match.endPathElementIndex;
|
|
if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) {
|
|
currentSelectorPathElementIndex = 0;
|
|
currentSelectorPathIndex++;
|
|
}
|
|
}
|
|
|
|
if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) {
|
|
path[path.length - 1].elements = path[path.length - 1]
|
|
.elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex));
|
|
currentSelectorPathIndex++;
|
|
}
|
|
|
|
path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length));
|
|
path = path.map(function (currentValue) {
|
|
// we can re-use elements here, because the visibility property matters only for selectors
|
|
const derived = currentValue.createDerived(currentValue.elements);
|
|
if (isVisible) {
|
|
derived.ensureVisibility();
|
|
} else {
|
|
derived.ensureInvisibility();
|
|
}
|
|
return derived;
|
|
});
|
|
return path;
|
|
}
|
|
|
|
visitMedia(mediaNode, visitArgs) {
|
|
let newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length - 1]);
|
|
newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends));
|
|
this.allExtendsStack.push(newAllExtends);
|
|
}
|
|
|
|
visitMediaOut(mediaNode) {
|
|
const lastIndex = this.allExtendsStack.length - 1;
|
|
this.allExtendsStack.length = lastIndex;
|
|
}
|
|
|
|
visitAtRule(atRuleNode, visitArgs) {
|
|
let newAllExtends = atRuleNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length - 1]);
|
|
newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, atRuleNode.allExtends));
|
|
this.allExtendsStack.push(newAllExtends);
|
|
}
|
|
|
|
visitAtRuleOut(atRuleNode) {
|
|
const lastIndex = this.allExtendsStack.length - 1;
|
|
this.allExtendsStack.length = lastIndex;
|
|
}
|
|
}
|
|
|
|
/* eslint-disable no-unused-vars */
|
|
|
|
class JoinSelectorVisitor {
|
|
constructor() {
|
|
this.contexts = [[]];
|
|
this._visitor = new Visitor(this);
|
|
}
|
|
|
|
run(root) {
|
|
return this._visitor.visit(root);
|
|
}
|
|
|
|
visitDeclaration(declNode, visitArgs) {
|
|
visitArgs.visitDeeper = false;
|
|
}
|
|
|
|
visitMixinDefinition(mixinDefinitionNode, visitArgs) {
|
|
visitArgs.visitDeeper = false;
|
|
}
|
|
|
|
visitRuleset(rulesetNode, visitArgs) {
|
|
const context = this.contexts[this.contexts.length - 1];
|
|
const paths = [];
|
|
let selectors;
|
|
|
|
this.contexts.push(paths);
|
|
|
|
if (!rulesetNode.root) {
|
|
selectors = rulesetNode.selectors;
|
|
if (selectors) {
|
|
selectors = selectors.filter(function(selector) { return selector.getIsOutput(); });
|
|
rulesetNode.selectors = selectors.length ? selectors : (selectors = null);
|
|
if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); }
|
|
}
|
|
if (!selectors) { rulesetNode.rules = null; }
|
|
rulesetNode.paths = paths;
|
|
}
|
|
}
|
|
|
|
visitRulesetOut(rulesetNode) {
|
|
this.contexts.length = this.contexts.length - 1;
|
|
}
|
|
|
|
visitMedia(mediaNode, visitArgs) {
|
|
const context = this.contexts[this.contexts.length - 1];
|
|
mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia);
|
|
}
|
|
|
|
visitAtRule(atRuleNode, visitArgs) {
|
|
const context = this.contexts[this.contexts.length - 1];
|
|
|
|
if (atRuleNode.declarations && atRuleNode.declarations.length) {
|
|
atRuleNode.declarations[0].root = (context.length === 0 || context[0].multiMedia);
|
|
}
|
|
else if (atRuleNode.rules && atRuleNode.rules.length) {
|
|
atRuleNode.rules[0].root = (atRuleNode.isRooted || context.length === 0 || null);
|
|
}
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
/**
|
|
* @typedef {object} DebugInfoData
|
|
* @property {number} lineNumber
|
|
* @property {string} fileName
|
|
*/
|
|
|
|
/**
|
|
* @typedef {object} DebugInfoContext
|
|
* @property {DebugInfoData} debugInfo
|
|
*/
|
|
|
|
/**
|
|
* @deprecated The dumpLineNumbers option is deprecated. Use sourcemaps instead.
|
|
* This will be removed in a future version.
|
|
*
|
|
* @param {DebugInfoContext} ctx - Context object with debugInfo
|
|
* @returns {string} Debug info as CSS comment
|
|
*/
|
|
function asComment(ctx) {
|
|
return `/* line ${ctx.debugInfo.lineNumber}, ${ctx.debugInfo.fileName} */\n`;
|
|
}
|
|
|
|
/**
|
|
* @deprecated The dumpLineNumbers option is deprecated. Use sourcemaps instead.
|
|
* This function generates Sass-compatible debug info using @media -sass-debug-info syntax.
|
|
* This format had short-lived usage and is no longer recommended.
|
|
* This will be removed in a future version.
|
|
*
|
|
* @param {DebugInfoContext} ctx - Context object with debugInfo
|
|
* @returns {string} Sass-compatible debug info as @media query
|
|
*/
|
|
function asMediaQuery(ctx) {
|
|
let filenameWithProtocol = ctx.debugInfo.fileName;
|
|
if (!/^[a-z]+:\/\//i.test(filenameWithProtocol)) {
|
|
filenameWithProtocol = `file://${filenameWithProtocol}`;
|
|
}
|
|
return `@media -sass-debug-info{filename{font-family:${filenameWithProtocol.replace(/([.:/\\])/g, function (a) {
|
|
if (a == '\\') {
|
|
a = '/';
|
|
}
|
|
return `\\${a}`;
|
|
})}}line{font-family:\\00003${ctx.debugInfo.lineNumber}}}\n`;
|
|
}
|
|
|
|
/**
|
|
* Generates debug information (line numbers) for CSS output.
|
|
*
|
|
* @param {{ dumpLineNumbers?: string, compress?: boolean }} context - Context object with dumpLineNumbers option
|
|
* @param {DebugInfoContext} ctx - Context object with debugInfo
|
|
* @param {string} [lineSeparator] - Separator between comment and media query (for 'all' mode)
|
|
* @returns {string} Debug info string
|
|
*
|
|
* @deprecated The dumpLineNumbers option is deprecated. Use sourcemaps instead.
|
|
* All modes ('comments', 'mediaquery', 'all') are deprecated and will be removed in a future version.
|
|
* The 'mediaquery' and 'all' modes generate Sass-compatible @media -sass-debug-info output
|
|
* which had short-lived usage and is no longer recommended.
|
|
*/
|
|
function debugInfo(context, ctx, lineSeparator) {
|
|
let result = '';
|
|
if (context.dumpLineNumbers && !context.compress) {
|
|
switch (context.dumpLineNumbers) {
|
|
case 'comments':
|
|
result = asComment(ctx);
|
|
break;
|
|
case 'mediaquery':
|
|
result = asMediaQuery(ctx);
|
|
break;
|
|
case 'all':
|
|
result = asComment(ctx) + (lineSeparator || '') + asMediaQuery(ctx);
|
|
break;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class Comment extends Node {
|
|
get type() { return 'Comment'; }
|
|
|
|
/**
|
|
* @param {string} value
|
|
* @param {boolean} isLineComment
|
|
* @param {number} index
|
|
* @param {FileInfo} currentFileInfo
|
|
*/
|
|
constructor(value, isLineComment, index, currentFileInfo) {
|
|
super();
|
|
this.value = value;
|
|
this.isLineComment = isLineComment;
|
|
this._index = index;
|
|
this._fileInfo = currentFileInfo;
|
|
this.allowRoot = true;
|
|
/** @type {{ lineNumber: number, fileName: string } | undefined} */
|
|
this.debugInfo = undefined;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
if (this.debugInfo) {
|
|
output.add(debugInfo(context, /** @type {DebugInfoContext} */ (this)), this.fileInfo(), this.getIndex());
|
|
}
|
|
output.add(/** @type {string} */ (this.value));
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {boolean}
|
|
*/
|
|
isSilent(context) {
|
|
const isCompressed = context.compress && /** @type {string} */ (this.value)[2] !== '!';
|
|
return this.isLineComment || isCompressed;
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
/** @import { EvalContext, CSSOutput } from './node.js' */
|
|
|
|
class Unit extends Node {
|
|
get type() { return 'Unit'; }
|
|
|
|
/**
|
|
* @param {string[]} [numerator]
|
|
* @param {string[]} [denominator]
|
|
* @param {string} [backupUnit]
|
|
*/
|
|
constructor(numerator, denominator, backupUnit) {
|
|
super();
|
|
/** @type {string[]} */
|
|
this.numerator = numerator ? copyArray(numerator).sort() : [];
|
|
/** @type {string[]} */
|
|
this.denominator = denominator ? copyArray(denominator).sort() : [];
|
|
if (backupUnit) {
|
|
/** @type {string | undefined} */
|
|
this.backupUnit = backupUnit;
|
|
} else if (numerator && numerator.length) {
|
|
this.backupUnit = numerator[0];
|
|
}
|
|
}
|
|
|
|
clone() {
|
|
return new Unit(copyArray(this.numerator), copyArray(this.denominator), this.backupUnit);
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
// Dimension checks the unit is singular and throws an error if in strict math mode.
|
|
const strictUnits = context && context.strictUnits;
|
|
if (this.numerator.length === 1) {
|
|
output.add(this.numerator[0]); // the ideal situation
|
|
} else if (!strictUnits && this.backupUnit) {
|
|
output.add(this.backupUnit);
|
|
} else if (!strictUnits && this.denominator.length) {
|
|
output.add(this.denominator[0]);
|
|
}
|
|
}
|
|
|
|
toString() {
|
|
let i, returnStr = this.numerator.join('*');
|
|
for (i = 0; i < this.denominator.length; i++) {
|
|
returnStr += `/${this.denominator[i]}`;
|
|
}
|
|
return returnStr;
|
|
}
|
|
|
|
/**
|
|
* @param {Unit} other
|
|
* @returns {0 | undefined}
|
|
*/
|
|
compare(other) {
|
|
return this.is(other.toString()) ? 0 : undefined;
|
|
}
|
|
|
|
/** @param {string} unitString */
|
|
is(unitString) {
|
|
return this.toString().toUpperCase() === unitString.toUpperCase();
|
|
}
|
|
|
|
isLength() {
|
|
return RegExp('^(px|em|ex|ch|rem|in|cm|mm|pc|pt|ex|vw|vh|vmin|vmax)$', 'gi').test(this.toCSS(/** @type {import('./node.js').EvalContext} */ ({})));
|
|
}
|
|
|
|
isEmpty() {
|
|
return this.numerator.length === 0 && this.denominator.length === 0;
|
|
}
|
|
|
|
isSingular() {
|
|
return this.numerator.length <= 1 && this.denominator.length === 0;
|
|
}
|
|
|
|
/** @param {(atomicUnit: string, denominator: boolean) => string} callback */
|
|
map(callback) {
|
|
let i;
|
|
|
|
for (i = 0; i < this.numerator.length; i++) {
|
|
this.numerator[i] = callback(this.numerator[i], false);
|
|
}
|
|
|
|
for (i = 0; i < this.denominator.length; i++) {
|
|
this.denominator[i] = callback(this.denominator[i], true);
|
|
}
|
|
}
|
|
|
|
/** @returns {{ [groupName: string]: string }} */
|
|
usedUnits() {
|
|
/** @type {{ [unitName: string]: number }} */
|
|
let group;
|
|
/** @type {{ [groupName: string]: string }} */
|
|
const result = {};
|
|
/** @type {(atomicUnit: string) => string} */
|
|
let mapUnit;
|
|
/** @type {string} */
|
|
let groupName;
|
|
|
|
mapUnit = function (atomicUnit) {
|
|
// eslint-disable-next-line no-prototype-builtins
|
|
if (group.hasOwnProperty(atomicUnit) && !result[groupName]) {
|
|
result[groupName] = atomicUnit;
|
|
}
|
|
|
|
return atomicUnit;
|
|
};
|
|
|
|
for (groupName in unitConversions) {
|
|
// eslint-disable-next-line no-prototype-builtins
|
|
if (unitConversions.hasOwnProperty(groupName)) {
|
|
group = /** @type {{ [unitName: string]: number }} */ (unitConversions[/** @type {keyof typeof unitConversions} */ (groupName)]);
|
|
|
|
this.map(mapUnit);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
cancel() {
|
|
/** @type {{ [unit: string]: number }} */
|
|
const counter = {};
|
|
/** @type {string} */
|
|
let atomicUnit;
|
|
let i;
|
|
|
|
for (i = 0; i < this.numerator.length; i++) {
|
|
atomicUnit = this.numerator[i];
|
|
counter[atomicUnit] = (counter[atomicUnit] || 0) + 1;
|
|
}
|
|
|
|
for (i = 0; i < this.denominator.length; i++) {
|
|
atomicUnit = this.denominator[i];
|
|
counter[atomicUnit] = (counter[atomicUnit] || 0) - 1;
|
|
}
|
|
|
|
this.numerator = [];
|
|
this.denominator = [];
|
|
|
|
for (atomicUnit in counter) {
|
|
// eslint-disable-next-line no-prototype-builtins
|
|
if (counter.hasOwnProperty(atomicUnit)) {
|
|
const count = counter[atomicUnit];
|
|
|
|
if (count > 0) {
|
|
for (i = 0; i < count; i++) {
|
|
this.numerator.push(atomicUnit);
|
|
}
|
|
} else if (count < 0) {
|
|
for (i = 0; i < -count; i++) {
|
|
this.denominator.push(atomicUnit);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
this.numerator.sort();
|
|
this.denominator.sort();
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
/** @import { EvalContext, CSSOutput } from './node.js' */
|
|
|
|
//
|
|
// A number with a unit
|
|
//
|
|
class Dimension extends Node {
|
|
get type() { return 'Dimension'; }
|
|
|
|
/**
|
|
* @param {number | string} value
|
|
* @param {Unit | string} [unit]
|
|
*/
|
|
constructor(value, unit) {
|
|
super();
|
|
/** @type {number} */
|
|
this.value = parseFloat(/** @type {string} */ (value));
|
|
if (isNaN(this.value)) {
|
|
throw new Error('Dimension is not a number.');
|
|
}
|
|
/** @type {Unit} */
|
|
this.unit = (unit && unit instanceof Unit) ? unit :
|
|
new Unit(unit ? [/** @type {string} */ (unit)] : undefined);
|
|
this.setParent(this.unit, this);
|
|
}
|
|
|
|
/**
|
|
* @param {import('./node.js').TreeVisitor} visitor
|
|
*/
|
|
accept(visitor) {
|
|
this.unit = /** @type {Unit} */ (visitor.visit(this.unit));
|
|
}
|
|
|
|
// remove when Nodes have JSDoc types
|
|
// eslint-disable-next-line no-unused-vars
|
|
/** @param {EvalContext} context */
|
|
eval(context) {
|
|
return this;
|
|
}
|
|
|
|
toColor() {
|
|
const v = /** @type {number} */ (this.value);
|
|
return new Color([v, v, v]);
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
if ((context && context.strictUnits) && !this.unit.isSingular()) {
|
|
throw new Error(`Multiple units in dimension. Correct the units or use the unit function. Bad unit: ${this.unit.toString()}`);
|
|
}
|
|
|
|
const value = this.fround(context, /** @type {number} */ (this.value));
|
|
let strValue = String(value);
|
|
|
|
if (value !== 0 && value < 0.000001 && value > -0.000001) {
|
|
// would be output 1e-6 etc.
|
|
strValue = value.toFixed(20).replace(/0+$/, '');
|
|
}
|
|
|
|
if (context && context.compress) {
|
|
// Zero values doesn't need a unit
|
|
if (value === 0 && this.unit.isLength()) {
|
|
output.add(strValue);
|
|
return;
|
|
}
|
|
|
|
// Float values doesn't need a leading zero
|
|
if (value > 0 && value < 1) {
|
|
strValue = (strValue).slice(1);
|
|
}
|
|
}
|
|
|
|
output.add(strValue);
|
|
this.unit.genCSS(context, output);
|
|
}
|
|
|
|
// In an operation between two Dimensions,
|
|
// we default to the first Dimension's unit,
|
|
// so `1px + 2` will yield `3px`.
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {string} op
|
|
* @param {Dimension} other
|
|
*/
|
|
operate(context, op, other) {
|
|
/* jshint noempty:false */
|
|
let value = this._operate(context, op, /** @type {number} */ (this.value), /** @type {number} */ (other.value));
|
|
let unit = this.unit.clone();
|
|
|
|
if (op === '+' || op === '-') {
|
|
if (unit.numerator.length === 0 && unit.denominator.length === 0) {
|
|
unit = other.unit.clone();
|
|
if (this.unit.backupUnit) {
|
|
unit.backupUnit = this.unit.backupUnit;
|
|
}
|
|
} else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) ; else {
|
|
other = other.convertTo(this.unit.usedUnits());
|
|
|
|
if (context.strictUnits && other.unit.toString() !== unit.toString()) {
|
|
throw new Error('Incompatible units. Change the units or use the unit function. '
|
|
+ `Bad units: '${unit.toString()}' and '${other.unit.toString()}'.`);
|
|
}
|
|
|
|
value = this._operate(context, op, /** @type {number} */ (this.value), /** @type {number} */ (other.value));
|
|
}
|
|
} else if (op === '*') {
|
|
unit.numerator = unit.numerator.concat(other.unit.numerator).sort();
|
|
unit.denominator = unit.denominator.concat(other.unit.denominator).sort();
|
|
unit.cancel();
|
|
} else if (op === '/') {
|
|
unit.numerator = unit.numerator.concat(other.unit.denominator).sort();
|
|
unit.denominator = unit.denominator.concat(other.unit.numerator).sort();
|
|
unit.cancel();
|
|
}
|
|
return new Dimension(/** @type {number} */ (value), unit);
|
|
}
|
|
|
|
/**
|
|
* @param {Node} other
|
|
* @returns {number | undefined}
|
|
*/
|
|
compare(other) {
|
|
let a, b;
|
|
|
|
if (!(other instanceof Dimension)) {
|
|
return undefined;
|
|
}
|
|
|
|
if (this.unit.isEmpty() || other.unit.isEmpty()) {
|
|
a = this;
|
|
b = other;
|
|
} else {
|
|
a = this.unify();
|
|
b = other.unify();
|
|
if (a.unit.compare(b.unit) !== 0) {
|
|
return undefined;
|
|
}
|
|
}
|
|
|
|
return Node.numericCompare(/** @type {number} */ (a.value), /** @type {number} */ (b.value));
|
|
}
|
|
|
|
unify() {
|
|
return this.convertTo({ length: 'px', duration: 's', angle: 'rad' });
|
|
}
|
|
|
|
/**
|
|
* @param {string | { [groupName: string]: string }} conversions
|
|
* @returns {Dimension}
|
|
*/
|
|
convertTo(conversions) {
|
|
let value = /** @type {number} */ (this.value);
|
|
const unit = this.unit.clone();
|
|
let i;
|
|
/** @type {string} */
|
|
let groupName;
|
|
/** @type {{ [unitName: string]: number }} */
|
|
let group;
|
|
/** @type {string} */
|
|
let targetUnit;
|
|
/** @type {{ [groupName: string]: string }} */
|
|
let derivedConversions = {};
|
|
/** @type {(atomicUnit: string, denominator: boolean) => string} */
|
|
let applyUnit;
|
|
|
|
if (typeof conversions === 'string') {
|
|
for (i in unitConversions) {
|
|
if (unitConversions[/** @type {keyof typeof unitConversions} */ (i)].hasOwnProperty(conversions)) {
|
|
derivedConversions = {};
|
|
derivedConversions[i] = conversions;
|
|
}
|
|
}
|
|
conversions = derivedConversions;
|
|
}
|
|
applyUnit = function (atomicUnit, denominator) {
|
|
if (group.hasOwnProperty(atomicUnit)) {
|
|
if (denominator) {
|
|
value = value / (group[atomicUnit] / group[targetUnit]);
|
|
} else {
|
|
value = value * (group[atomicUnit] / group[targetUnit]);
|
|
}
|
|
|
|
return targetUnit;
|
|
}
|
|
|
|
return atomicUnit;
|
|
};
|
|
|
|
for (groupName in conversions) {
|
|
if (conversions.hasOwnProperty(groupName)) {
|
|
targetUnit = conversions[groupName];
|
|
group = /** @type {{ [unitName: string]: number }} */ (unitConversions[/** @type {keyof typeof unitConversions} */ (groupName)]);
|
|
|
|
unit.map(applyUnit);
|
|
}
|
|
}
|
|
|
|
unit.cancel();
|
|
|
|
return new Dimension(value, unit);
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class Anonymous extends Node {
|
|
get type() { return 'Anonymous'; }
|
|
|
|
/**
|
|
* @param {string | null} value
|
|
* @param {number} [index]
|
|
* @param {FileInfo} [currentFileInfo]
|
|
* @param {boolean} [mapLines]
|
|
* @param {boolean} [rulesetLike]
|
|
* @param {VisibilityInfo} [visibilityInfo]
|
|
*/
|
|
constructor(value, index, currentFileInfo, mapLines, rulesetLike, visibilityInfo) {
|
|
super();
|
|
this.value = value;
|
|
this._index = index;
|
|
this._fileInfo = currentFileInfo;
|
|
this.mapLines = mapLines;
|
|
this.rulesetLike = (typeof rulesetLike === 'undefined') ? false : rulesetLike;
|
|
this.allowRoot = true;
|
|
this.copyVisibilityInfo(visibilityInfo);
|
|
}
|
|
|
|
/** @returns {Anonymous} */
|
|
eval() {
|
|
return new Anonymous(/** @type {string | null} */ (this.value), this._index, this._fileInfo, this.mapLines, this.rulesetLike, this.visibilityInfo());
|
|
}
|
|
|
|
/**
|
|
* @param {Node} other
|
|
* @returns {number | undefined}
|
|
*/
|
|
compare(other) {
|
|
return other.toCSS && this.toCSS(/** @type {EvalContext} */ ({})) === other.toCSS(/** @type {EvalContext} */ ({})) ? 0 : undefined;
|
|
}
|
|
|
|
/** @returns {boolean} */
|
|
isRulesetLike() {
|
|
return this.rulesetLike;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
this.nodeVisible = Boolean(this.value);
|
|
if (this.nodeVisible) {
|
|
output.add(/** @type {string} */ (this.value), this._fileInfo, this._index, this.mapLines);
|
|
}
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class Expression extends Node {
|
|
get type() { return 'Expression'; }
|
|
|
|
/**
|
|
* @param {Node[]} value
|
|
* @param {boolean} [noSpacing]
|
|
*/
|
|
constructor(value, noSpacing) {
|
|
super();
|
|
this.value = value;
|
|
/** @type {boolean | undefined} */
|
|
this.noSpacing = noSpacing;
|
|
/** @type {boolean | undefined} */
|
|
this.parens = undefined;
|
|
/** @type {boolean | undefined} */
|
|
this.parensInOp = undefined;
|
|
if (!value) {
|
|
throw new Error('Expression requires an array parameter');
|
|
}
|
|
}
|
|
|
|
/** @param {TreeVisitor} visitor */
|
|
accept(visitor) {
|
|
this.value = visitor.visitArray(/** @type {Node[]} */ (this.value));
|
|
}
|
|
|
|
/** @param {EvalContext} context */
|
|
eval(context) {
|
|
const noSpacing = this.noSpacing;
|
|
/** @type {Node | Expression} */
|
|
let returnValue;
|
|
const mathOn = context.isMathOn();
|
|
const inParenthesis = this.parens;
|
|
|
|
let doubleParen = false;
|
|
if (inParenthesis) {
|
|
context.inParenthesis();
|
|
}
|
|
const value = /** @type {Node[]} */ (this.value);
|
|
if (value.length > 1) {
|
|
returnValue = new Expression(value.map(function (e) {
|
|
if (!e.eval) {
|
|
return e;
|
|
}
|
|
return e.eval(context);
|
|
}), this.noSpacing);
|
|
} else if (value.length === 1) {
|
|
const first = /** @type {Expression} */ (value[0]);
|
|
if (first.parens && !first.parensInOp && !context.inCalc) {
|
|
doubleParen = true;
|
|
}
|
|
returnValue = value[0].eval(context);
|
|
} else {
|
|
returnValue = this;
|
|
}
|
|
if (inParenthesis) {
|
|
context.outOfParenthesis();
|
|
}
|
|
if (this.parens && this.parensInOp && !mathOn && !doubleParen
|
|
&& (!(returnValue instanceof Dimension))) {
|
|
returnValue = new Paren(returnValue);
|
|
}
|
|
/** @type {Expression} */ (returnValue).noSpacing =
|
|
/** @type {Expression} */ (returnValue).noSpacing || noSpacing;
|
|
return returnValue;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
const value = /** @type {Node[]} */ (this.value);
|
|
for (let i = 0; i < value.length; i++) {
|
|
value[i].genCSS(context, output);
|
|
if (!this.noSpacing && i + 1 < value.length) {
|
|
if (!(value[i + 1] instanceof Anonymous) ||
|
|
value[i + 1] instanceof Anonymous && /** @type {string} */ (value[i + 1].value) !== ',') {
|
|
output.add(' ');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
throwAwayComments() {
|
|
this.value = /** @type {Node[]} */ (this.value).filter(function(v) {
|
|
return !(v instanceof Comment);
|
|
});
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class Value extends Node {
|
|
get type() { return 'Value'; }
|
|
|
|
/** @param {Node[] | Node} value */
|
|
constructor(value) {
|
|
super();
|
|
if (!value) {
|
|
throw new Error('Value requires an array argument');
|
|
}
|
|
if (!Array.isArray(value)) {
|
|
this.value = [ value ];
|
|
}
|
|
else {
|
|
this.value = value;
|
|
}
|
|
}
|
|
|
|
/** @param {TreeVisitor} visitor */
|
|
accept(visitor) {
|
|
if (this.value) {
|
|
this.value = visitor.visitArray(/** @type {Node[]} */ (this.value));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {Node}
|
|
*/
|
|
eval(context) {
|
|
const value = /** @type {Node[]} */ (this.value);
|
|
if (value.length === 1) {
|
|
return value[0].eval(context);
|
|
} else {
|
|
return new Value(value.map(function (v) {
|
|
return v.eval(context);
|
|
}));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
const value = /** @type {Node[]} */ (this.value);
|
|
let i;
|
|
for (i = 0; i < value.length; i++) {
|
|
value[i].genCSS(context, output);
|
|
if (i + 1 < value.length) {
|
|
output.add((context && context.compress) ? ',' : ', ');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
/**
|
|
* Merges declarations with merge flags (+ or ,) into combined values.
|
|
* Used by both the ToCSSVisitor and AtRule eval.
|
|
* @param {Node[]} rules
|
|
*/
|
|
function mergeRules(rules) {
|
|
if (!rules) {
|
|
return;
|
|
}
|
|
|
|
/** @type {Record<string, Array<Node & { merge: string, name: string, value: Node, important: string }>>} */
|
|
const groups = {};
|
|
/** @type {Array<Array<Node & { merge: string, name: string, value: Node, important: string }>>} */
|
|
const groupsArr = [];
|
|
|
|
for (let i = 0; i < rules.length; i++) {
|
|
const rule = /** @type {Node & { merge: string, name: string }} */ (rules[i]);
|
|
if (rule.merge) {
|
|
const key = rule.name;
|
|
groups[key] ? rules.splice(i--, 1) :
|
|
groupsArr.push(groups[key] = []);
|
|
groups[key].push(/** @type {Node & { merge: string, name: string, value: Node, important: string }} */ (rule));
|
|
}
|
|
}
|
|
|
|
groupsArr.forEach(group => {
|
|
if (group.length > 0) {
|
|
const result = group[0];
|
|
/** @type {Node[]} */
|
|
let space = [];
|
|
const comma = [new Expression(space)];
|
|
group.forEach(rule => {
|
|
if ((rule.merge === '+') && (space.length > 0)) {
|
|
comma.push(new Expression(space = []));
|
|
}
|
|
space.push(rule.value);
|
|
result.important = result.important || rule.important;
|
|
});
|
|
result.value = new Value(comma);
|
|
}
|
|
});
|
|
}
|
|
|
|
/* eslint-disable no-unused-vars */
|
|
|
|
class CSSVisitorUtils {
|
|
constructor(context) {
|
|
this._visitor = new Visitor(this);
|
|
this._context = context;
|
|
}
|
|
|
|
containsSilentNonBlockedChild(bodyRules) {
|
|
let rule;
|
|
if (!bodyRules) {
|
|
return false;
|
|
}
|
|
for (let r = 0; r < bodyRules.length; r++) {
|
|
rule = bodyRules[r];
|
|
if (rule.isSilent && rule.isSilent(this._context) && !rule.blocksVisibility()) {
|
|
// the atrule contains something that was referenced (likely by extend)
|
|
// therefore it needs to be shown in output too
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
keepOnlyVisibleChilds(owner) {
|
|
if (owner && owner.rules) {
|
|
owner.rules = owner.rules.filter(thing => thing.isVisible());
|
|
}
|
|
}
|
|
|
|
isEmpty(owner) {
|
|
return (owner && owner.rules)
|
|
? (owner.rules.length === 0) : true;
|
|
}
|
|
|
|
hasVisibleSelector(rulesetNode) {
|
|
return (rulesetNode && rulesetNode.paths)
|
|
? (rulesetNode.paths.length > 0) : false;
|
|
}
|
|
|
|
resolveVisibility(node) {
|
|
if (!node.blocksVisibility()) {
|
|
if (this.isEmpty(node)) {
|
|
return ;
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
const compiledRulesBody = node.rules[0];
|
|
this.keepOnlyVisibleChilds(compiledRulesBody);
|
|
|
|
if (this.isEmpty(compiledRulesBody)) {
|
|
return ;
|
|
}
|
|
|
|
node.ensureVisibility();
|
|
node.removeVisibilityBlock();
|
|
|
|
return node;
|
|
}
|
|
|
|
isVisibleRuleset(rulesetNode) {
|
|
if (rulesetNode.firstRoot) {
|
|
return true;
|
|
}
|
|
|
|
if (this.isEmpty(rulesetNode)) {
|
|
return false;
|
|
}
|
|
|
|
if (!rulesetNode.root && !this.hasVisibleSelector(rulesetNode)) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
const ToCSSVisitor = function(context) {
|
|
this._visitor = new Visitor(this);
|
|
this._context = context;
|
|
this.utils = new CSSVisitorUtils(context);
|
|
};
|
|
|
|
ToCSSVisitor.prototype = {
|
|
isReplacing: true,
|
|
run: function (root) {
|
|
return this._visitor.visit(root);
|
|
},
|
|
|
|
visitDeclaration: function (declNode, visitArgs) {
|
|
if (declNode.blocksVisibility() || declNode.variable) {
|
|
return;
|
|
}
|
|
return declNode;
|
|
},
|
|
|
|
visitMixinDefinition: function (mixinNode, visitArgs) {
|
|
// mixin definitions do not get eval'd - this means they keep state
|
|
// so we have to clear that state here so it isn't used if toCSS is called twice
|
|
mixinNode.frames = [];
|
|
},
|
|
|
|
visitExtend: function (extendNode, visitArgs) {
|
|
},
|
|
|
|
visitComment: function (commentNode, visitArgs) {
|
|
if (commentNode.blocksVisibility() || commentNode.isSilent(this._context)) {
|
|
return;
|
|
}
|
|
return commentNode;
|
|
},
|
|
|
|
visitMedia: function(mediaNode, visitArgs) {
|
|
const originalRules = mediaNode.rules[0].rules;
|
|
mediaNode.accept(this._visitor);
|
|
visitArgs.visitDeeper = false;
|
|
|
|
return this.utils.resolveVisibility(mediaNode, originalRules);
|
|
},
|
|
|
|
visitImport: function (importNode, visitArgs) {
|
|
if (importNode.blocksVisibility()) {
|
|
return ;
|
|
}
|
|
return importNode;
|
|
},
|
|
|
|
visitAtRule: function(atRuleNode, visitArgs) {
|
|
if (atRuleNode.rules && atRuleNode.rules.length) {
|
|
return this.visitAtRuleWithBody(atRuleNode, visitArgs);
|
|
} else {
|
|
return this.visitAtRuleWithoutBody(atRuleNode, visitArgs);
|
|
}
|
|
},
|
|
|
|
visitAnonymous: function(anonymousNode, visitArgs) {
|
|
if (!anonymousNode.blocksVisibility()) {
|
|
anonymousNode.accept(this._visitor);
|
|
return anonymousNode;
|
|
}
|
|
},
|
|
|
|
visitAtRuleWithBody: function(atRuleNode, visitArgs) {
|
|
// if there is only one nested ruleset and that one has no path, then it is
|
|
// just fake ruleset
|
|
function hasFakeRuleset(atRuleNode) {
|
|
const bodyRules = atRuleNode.rules;
|
|
return bodyRules.length === 1 && (!bodyRules[0].paths || bodyRules[0].paths.length === 0);
|
|
}
|
|
function getBodyRules(atRuleNode) {
|
|
const nodeRules = atRuleNode.rules;
|
|
if (hasFakeRuleset(atRuleNode)) {
|
|
return nodeRules[0].rules;
|
|
}
|
|
|
|
return nodeRules;
|
|
}
|
|
// it is still true that it is only one ruleset in array
|
|
// this is last such moment
|
|
// process childs
|
|
const originalRules = getBodyRules(atRuleNode);
|
|
atRuleNode.accept(this._visitor);
|
|
visitArgs.visitDeeper = false;
|
|
|
|
if (!this.utils.isEmpty(atRuleNode)) {
|
|
this._mergeRules(atRuleNode.rules[0].rules);
|
|
}
|
|
|
|
return this.utils.resolveVisibility(atRuleNode, originalRules);
|
|
},
|
|
|
|
visitAtRuleWithoutBody: function(atRuleNode, visitArgs) {
|
|
if (atRuleNode.blocksVisibility()) {
|
|
return;
|
|
}
|
|
|
|
if (atRuleNode.name === '@charset') {
|
|
// Only output the debug info together with subsequent @charset definitions
|
|
// a comment (or @media statement) before the actual @charset atrule would
|
|
// be considered illegal css as it has to be on the first line
|
|
if (this.charset) {
|
|
if (atRuleNode.debugInfo) {
|
|
const comment = new tree.Comment(`/* ${atRuleNode.toCSS(this._context).replace(/\n/g, '')} */\n`);
|
|
comment.debugInfo = atRuleNode.debugInfo;
|
|
return this._visitor.visit(comment);
|
|
}
|
|
return;
|
|
}
|
|
this.charset = true;
|
|
}
|
|
|
|
return atRuleNode;
|
|
},
|
|
|
|
checkValidNodes: function(rules, isRoot) {
|
|
if (!rules) {
|
|
return;
|
|
}
|
|
|
|
for (let i = 0; i < rules.length; i++) {
|
|
const ruleNode = rules[i];
|
|
if (isRoot && ruleNode instanceof tree.Declaration && !ruleNode.variable) {
|
|
throw { message: 'Properties must be inside selector blocks. They cannot be in the root',
|
|
index: ruleNode.getIndex(), filename: ruleNode.fileInfo() && ruleNode.fileInfo().filename};
|
|
}
|
|
if (ruleNode instanceof tree.Call) {
|
|
throw { message: `Function '${ruleNode.name}' did not return a root node`,
|
|
index: ruleNode.getIndex(), filename: ruleNode.fileInfo() && ruleNode.fileInfo().filename};
|
|
}
|
|
if (ruleNode.type && !ruleNode.allowRoot) {
|
|
throw { message: `${ruleNode.type} node returned by a function is not valid here`,
|
|
index: ruleNode.getIndex(), filename: ruleNode.fileInfo() && ruleNode.fileInfo().filename};
|
|
}
|
|
}
|
|
},
|
|
|
|
visitRuleset: function (rulesetNode, visitArgs) {
|
|
// at this point rulesets are nested into each other
|
|
let rule;
|
|
|
|
const rulesets = [];
|
|
|
|
this.checkValidNodes(rulesetNode.rules, rulesetNode.firstRoot);
|
|
|
|
if (!rulesetNode.root) {
|
|
// remove invisible paths
|
|
this._compileRulesetPaths(rulesetNode);
|
|
|
|
// remove rulesets from this ruleset body and compile them separately
|
|
const nodeRules = rulesetNode.rules;
|
|
|
|
let nodeRuleCnt = nodeRules ? nodeRules.length : 0;
|
|
for (let i = 0; i < nodeRuleCnt; ) {
|
|
rule = nodeRules[i];
|
|
if (rule && rule.rules) {
|
|
// visit because we are moving them out from being a child
|
|
rulesets.push(this._visitor.visit(rule));
|
|
nodeRules.splice(i, 1);
|
|
nodeRuleCnt--;
|
|
continue;
|
|
}
|
|
i++;
|
|
}
|
|
// accept the visitor to remove rules and refactor itself
|
|
// then we can decide nogw whether we want it or not
|
|
// compile body
|
|
if (nodeRuleCnt > 0) {
|
|
rulesetNode.accept(this._visitor);
|
|
} else {
|
|
rulesetNode.rules = null;
|
|
}
|
|
visitArgs.visitDeeper = false;
|
|
} else { // if (! rulesetNode.root) {
|
|
rulesetNode.accept(this._visitor);
|
|
visitArgs.visitDeeper = false;
|
|
}
|
|
|
|
if (rulesetNode.rules) {
|
|
this._mergeRules(rulesetNode.rules);
|
|
this._removeDuplicateRules(rulesetNode.rules);
|
|
}
|
|
|
|
// now decide whether we keep the ruleset
|
|
if (this.utils.isVisibleRuleset(rulesetNode)) {
|
|
rulesetNode.ensureVisibility();
|
|
rulesets.splice(0, 0, rulesetNode);
|
|
}
|
|
|
|
if (rulesets.length === 1) {
|
|
return rulesets[0];
|
|
}
|
|
return rulesets;
|
|
},
|
|
|
|
_compileRulesetPaths: function(rulesetNode) {
|
|
if (rulesetNode.paths) {
|
|
rulesetNode.paths = rulesetNode.paths
|
|
.filter(p => {
|
|
let i;
|
|
if (p[0].elements[0].combinator.value === ' ') {
|
|
p[0].elements[0].combinator = new(tree.Combinator)('');
|
|
}
|
|
for (i = 0; i < p.length; i++) {
|
|
if (p[i].isVisible() && p[i].getIsOutput()) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
});
|
|
}
|
|
},
|
|
|
|
_removeDuplicateRules: function(rules) {
|
|
if (!rules) { return; }
|
|
|
|
// remove duplicates
|
|
const ruleCache = {};
|
|
|
|
for (let i = rules.length - 1; i >= 0 ; i--) {
|
|
let rule = rules[i];
|
|
if (rule instanceof tree.Declaration) {
|
|
if (!Object.prototype.hasOwnProperty.call(ruleCache, rule.name)) {
|
|
ruleCache[rule.name] = rule;
|
|
} else {
|
|
let ruleList = ruleCache[rule.name];
|
|
if (!Array.isArray(ruleList)) {
|
|
const prevRuleCSS = ruleList.toCSS(this._context);
|
|
ruleList = ruleCache[rule.name] = [prevRuleCSS];
|
|
}
|
|
const ruleCSS = rule.toCSS(this._context);
|
|
if (ruleList.indexOf(ruleCSS) !== -1) {
|
|
rules.splice(i, 1);
|
|
} else {
|
|
ruleList.push(ruleCSS);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
_mergeRules: mergeRules
|
|
};
|
|
|
|
var visitors = {
|
|
Visitor,
|
|
ImportVisitor,
|
|
MarkVisibleSelectorsVisitor: SetTreeVisibilityVisitor,
|
|
ExtendVisitor: ProcessExtendsVisitor,
|
|
JoinSelectorVisitor,
|
|
ToCSSVisitor
|
|
};
|
|
|
|
var getParserInput = () => {
|
|
let // Less input string
|
|
input;
|
|
|
|
let // current chunk
|
|
j;
|
|
|
|
const // holds state for backtracking
|
|
saveStack = [];
|
|
|
|
let // furthest index the parser has gone to
|
|
furthest;
|
|
|
|
let // if this is furthest we got to, this is the probably cause
|
|
furthestPossibleErrorMessage;
|
|
|
|
let // chunkified input
|
|
chunks;
|
|
|
|
let // current chunk
|
|
current;
|
|
|
|
let // index of current chunk, in `input`
|
|
currentPos;
|
|
|
|
const parserInput = {};
|
|
const CHARCODE_SPACE = 32;
|
|
const CHARCODE_TAB = 9;
|
|
const CHARCODE_LF = 10;
|
|
const CHARCODE_CR = 13;
|
|
const CHARCODE_PLUS = 43;
|
|
const CHARCODE_COMMA = 44;
|
|
const CHARCODE_FORWARD_SLASH = 47;
|
|
const CHARCODE_9 = 57;
|
|
|
|
function skipWhitespace(length) {
|
|
const oldi = parserInput.i;
|
|
const oldj = j;
|
|
const curr = parserInput.i - currentPos;
|
|
const endIndex = parserInput.i + current.length - curr;
|
|
const mem = (parserInput.i += length);
|
|
const inp = input;
|
|
let c;
|
|
let nextChar;
|
|
let comment;
|
|
|
|
for (; parserInput.i < endIndex; parserInput.i++) {
|
|
c = inp.charCodeAt(parserInput.i);
|
|
|
|
if (parserInput.autoCommentAbsorb && c === CHARCODE_FORWARD_SLASH) {
|
|
nextChar = inp.charAt(parserInput.i + 1);
|
|
if (nextChar === '/') {
|
|
comment = {index: parserInput.i, isLineComment: true};
|
|
let nextNewLine = inp.indexOf('\n', parserInput.i + 2);
|
|
if (nextNewLine < 0) {
|
|
nextNewLine = endIndex;
|
|
}
|
|
parserInput.i = nextNewLine;
|
|
comment.text = inp.slice(comment.index, parserInput.i);
|
|
parserInput.commentStore.push(comment);
|
|
continue;
|
|
} else if (nextChar === '*') {
|
|
const nextStarSlash = inp.indexOf('*/', parserInput.i + 2);
|
|
if (nextStarSlash >= 0) {
|
|
comment = {
|
|
index: parserInput.i,
|
|
text: inp.slice(parserInput.i, nextStarSlash + 2),
|
|
isLineComment: false
|
|
};
|
|
parserInput.i += comment.text.length - 1;
|
|
parserInput.commentStore.push(comment);
|
|
continue;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
if ((c !== CHARCODE_SPACE) && (c !== CHARCODE_LF) && (c !== CHARCODE_TAB) && (c !== CHARCODE_CR)) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
current = current.slice(length + parserInput.i - mem + curr);
|
|
currentPos = parserInput.i;
|
|
|
|
if (!current.length) {
|
|
if (j < chunks.length - 1) {
|
|
current = chunks[++j];
|
|
skipWhitespace(0); // skip space at the beginning of a chunk
|
|
return true; // things changed
|
|
}
|
|
parserInput.finished = true;
|
|
}
|
|
|
|
return oldi !== parserInput.i || oldj !== j;
|
|
}
|
|
|
|
parserInput.save = () => {
|
|
currentPos = parserInput.i;
|
|
saveStack.push( { current, i: parserInput.i, j });
|
|
};
|
|
parserInput.restore = possibleErrorMessage => {
|
|
|
|
if (parserInput.i > furthest || (parserInput.i === furthest && possibleErrorMessage && !furthestPossibleErrorMessage)) {
|
|
furthest = parserInput.i;
|
|
furthestPossibleErrorMessage = possibleErrorMessage;
|
|
}
|
|
const state = saveStack.pop();
|
|
current = state.current;
|
|
currentPos = parserInput.i = state.i;
|
|
j = state.j;
|
|
};
|
|
parserInput.forget = () => {
|
|
saveStack.pop();
|
|
};
|
|
parserInput.isWhitespace = offset => {
|
|
const pos = parserInput.i + (offset || 0);
|
|
const code = input.charCodeAt(pos);
|
|
return (code === CHARCODE_SPACE || code === CHARCODE_CR || code === CHARCODE_TAB || code === CHARCODE_LF);
|
|
};
|
|
|
|
// Specialization of $(tok)
|
|
parserInput.$re = tok => {
|
|
if (parserInput.i > currentPos) {
|
|
current = current.slice(parserInput.i - currentPos);
|
|
currentPos = parserInput.i;
|
|
}
|
|
|
|
const m = tok.exec(current);
|
|
if (!m) {
|
|
return null;
|
|
}
|
|
|
|
skipWhitespace(m[0].length);
|
|
if (typeof m === 'string') {
|
|
return m;
|
|
}
|
|
|
|
return m.length === 1 ? m[0] : m;
|
|
};
|
|
|
|
parserInput.$char = tok => {
|
|
if (input.charAt(parserInput.i) !== tok) {
|
|
return null;
|
|
}
|
|
skipWhitespace(1);
|
|
return tok;
|
|
};
|
|
|
|
parserInput.$peekChar = tok => {
|
|
if (input.charAt(parserInput.i) !== tok) {
|
|
return null;
|
|
}
|
|
return tok;
|
|
};
|
|
|
|
parserInput.$str = tok => {
|
|
const tokLength = tok.length;
|
|
|
|
// https://jsperf.com/string-startswith/21
|
|
for (let i = 0; i < tokLength; i++) {
|
|
if (input.charAt(parserInput.i + i) !== tok.charAt(i)) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
skipWhitespace(tokLength);
|
|
return tok;
|
|
};
|
|
|
|
parserInput.$quoted = loc => {
|
|
const pos = loc || parserInput.i;
|
|
const startChar = input.charAt(pos);
|
|
|
|
if (startChar !== '\'' && startChar !== '"') {
|
|
return;
|
|
}
|
|
const length = input.length;
|
|
const currentPosition = pos;
|
|
|
|
for (let i = 1; i + currentPosition < length; i++) {
|
|
const nextChar = input.charAt(i + currentPosition);
|
|
switch (nextChar) {
|
|
case '\\':
|
|
i++;
|
|
continue;
|
|
case '\r':
|
|
case '\n':
|
|
break;
|
|
case startChar: {
|
|
const str = input.slice(currentPosition, currentPosition + i + 1);
|
|
if (!loc && loc !== 0) {
|
|
skipWhitespace(i + 1);
|
|
return str
|
|
}
|
|
return [startChar, str];
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
};
|
|
|
|
/**
|
|
* Permissive parsing. Ignores everything except matching {} [] () and quotes
|
|
* until matching token (outside of blocks)
|
|
*/
|
|
parserInput.$parseUntil = tok => {
|
|
let quote = '';
|
|
let returnVal = null;
|
|
let inComment = false;
|
|
let blockDepth = 0;
|
|
const blockStack = [];
|
|
const parseGroups = [];
|
|
const length = input.length;
|
|
const startPos = parserInput.i;
|
|
let lastPos = parserInput.i;
|
|
let i = parserInput.i;
|
|
let loop = true;
|
|
let testChar;
|
|
|
|
if (typeof tok === 'string') {
|
|
testChar = char => char === tok;
|
|
} else {
|
|
testChar = char => tok.test(char);
|
|
}
|
|
|
|
do {
|
|
let nextChar = input.charAt(i);
|
|
if (blockDepth === 0 && testChar(nextChar)) {
|
|
returnVal = input.slice(lastPos, i);
|
|
if (returnVal) {
|
|
parseGroups.push(returnVal);
|
|
}
|
|
else {
|
|
parseGroups.push(' ');
|
|
}
|
|
returnVal = parseGroups;
|
|
skipWhitespace(i - startPos);
|
|
loop = false;
|
|
} else {
|
|
if (inComment) {
|
|
if (nextChar === '*' &&
|
|
input.charAt(i + 1) === '/') {
|
|
i++;
|
|
blockDepth--;
|
|
inComment = false;
|
|
}
|
|
i++;
|
|
continue;
|
|
}
|
|
switch (nextChar) {
|
|
case '\\':
|
|
i++;
|
|
nextChar = input.charAt(i);
|
|
parseGroups.push(input.slice(lastPos, i + 1));
|
|
lastPos = i + 1;
|
|
break;
|
|
case '/':
|
|
if (input.charAt(i + 1) === '*') {
|
|
i++;
|
|
inComment = true;
|
|
blockDepth++;
|
|
}
|
|
break;
|
|
case '\'':
|
|
case '"':
|
|
quote = parserInput.$quoted(i);
|
|
if (quote) {
|
|
parseGroups.push(input.slice(lastPos, i), quote);
|
|
i += quote[1].length - 1;
|
|
lastPos = i + 1;
|
|
}
|
|
else {
|
|
skipWhitespace(i - startPos);
|
|
returnVal = nextChar;
|
|
loop = false;
|
|
}
|
|
break;
|
|
case '{':
|
|
blockStack.push('}');
|
|
blockDepth++;
|
|
break;
|
|
case '(':
|
|
blockStack.push(')');
|
|
blockDepth++;
|
|
break;
|
|
case '[':
|
|
blockStack.push(']');
|
|
blockDepth++;
|
|
break;
|
|
case '}':
|
|
case ')':
|
|
case ']': {
|
|
const expected = blockStack.pop();
|
|
if (nextChar === expected) {
|
|
blockDepth--;
|
|
} else {
|
|
// move the parser to the error and return expected
|
|
skipWhitespace(i - startPos);
|
|
returnVal = expected;
|
|
loop = false;
|
|
}
|
|
}
|
|
}
|
|
i++;
|
|
if (i > length) {
|
|
loop = false;
|
|
}
|
|
}
|
|
} while (loop);
|
|
|
|
return returnVal ? returnVal : null;
|
|
};
|
|
|
|
parserInput.autoCommentAbsorb = true;
|
|
parserInput.commentStore = [];
|
|
parserInput.finished = false;
|
|
|
|
// Same as $(), but don't change the state of the parser,
|
|
// just return the match.
|
|
parserInput.peek = tok => {
|
|
if (typeof tok === 'string') {
|
|
// https://jsperf.com/string-startswith/21
|
|
for (let i = 0; i < tok.length; i++) {
|
|
if (input.charAt(parserInput.i + i) !== tok.charAt(i)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
} else {
|
|
return tok.test(current);
|
|
}
|
|
};
|
|
|
|
// Specialization of peek()
|
|
// TODO remove or change some currentChar calls to peekChar
|
|
parserInput.peekChar = tok => input.charAt(parserInput.i) === tok;
|
|
|
|
parserInput.currentChar = () => input.charAt(parserInput.i);
|
|
|
|
parserInput.prevChar = () => input.charAt(parserInput.i - 1);
|
|
|
|
parserInput.getInput = () => input;
|
|
|
|
parserInput.peekNotNumeric = () => {
|
|
const c = input.charCodeAt(parserInput.i);
|
|
// Is the first char of the dimension 0-9, '.', '+' or '-'
|
|
return (c > CHARCODE_9 || c < CHARCODE_PLUS) || c === CHARCODE_FORWARD_SLASH || c === CHARCODE_COMMA;
|
|
};
|
|
|
|
parserInput.start = (str) => {
|
|
input = str;
|
|
parserInput.i = j = currentPos = furthest = 0;
|
|
|
|
chunks = [str];
|
|
current = chunks[0];
|
|
|
|
skipWhitespace(0);
|
|
};
|
|
|
|
parserInput.end = () => {
|
|
let message;
|
|
const isFinished = parserInput.i >= input.length;
|
|
|
|
if (parserInput.i < furthest) {
|
|
message = furthestPossibleErrorMessage;
|
|
parserInput.i = furthest;
|
|
}
|
|
return {
|
|
isFinished,
|
|
furthest: parserInput.i,
|
|
furthestPossibleErrorMessage: message,
|
|
furthestReachedEnd: parserInput.i >= input.length - 1,
|
|
furthestChar: input[parserInput.i]
|
|
};
|
|
};
|
|
|
|
return parserInput;
|
|
};
|
|
|
|
function makeRegistry( base ) {
|
|
return {
|
|
_data: {},
|
|
add: function(name, func) {
|
|
// precautionary case conversion, as later querying of
|
|
// the registry by function-caller uses lower case as well.
|
|
name = name.toLowerCase();
|
|
|
|
// eslint-disable-next-line no-prototype-builtins
|
|
if (this._data.hasOwnProperty(name)) ;
|
|
this._data[name] = func;
|
|
},
|
|
addMultiple: function(functions) {
|
|
Object.keys(functions).forEach(
|
|
name => {
|
|
this.add(name, functions[name]);
|
|
});
|
|
},
|
|
get: function(name) {
|
|
return this._data[name] || ( base && base.get( name ));
|
|
},
|
|
getLocalFunctions: function() {
|
|
return this._data;
|
|
},
|
|
inherit: function() {
|
|
return makeRegistry( this );
|
|
},
|
|
create: function(base) {
|
|
return makeRegistry(base);
|
|
}
|
|
};
|
|
}
|
|
|
|
var functionRegistry = makeRegistry( null );
|
|
|
|
// @ts-check
|
|
const MediaSyntaxOptions = {
|
|
queryInParens: true
|
|
};
|
|
|
|
const ContainerSyntaxOptions = {
|
|
queryInParens: true
|
|
};
|
|
|
|
/**
|
|
* Deprecation registry for Less.js
|
|
*
|
|
* Each deprecation has a unique ID and description.
|
|
* Repetition limiting caps warnings at 5 per deprecation type per parse.
|
|
* Use --quiet-deprecations to suppress all deprecation warnings.
|
|
*/
|
|
|
|
const MAX_REPETITIONS = 5;
|
|
|
|
class DeprecationHandler {
|
|
constructor() {
|
|
/** @type {Record<string, number>} */
|
|
this._counts = {};
|
|
}
|
|
|
|
/** @param {string} deprecationId */
|
|
shouldWarn(deprecationId) {
|
|
if (!deprecationId) { return true; }
|
|
const count = (this._counts[deprecationId] || 0) + 1;
|
|
this._counts[deprecationId] = count;
|
|
return count <= MAX_REPETITIONS;
|
|
}
|
|
|
|
/** @param {{ warn: (msg: string) => void }} logger */
|
|
summarize(logger) {
|
|
for (const id of Object.keys(this._counts)) {
|
|
const omitted = this._counts[id] - MAX_REPETITIONS;
|
|
if (omitted > 0) {
|
|
logger.warn(`${omitted} repetitive "${id}" deprecation warning(s) omitted.`);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
// less.js - parser
|
|
//
|
|
// A relatively straight-forward predictive parser.
|
|
// There is no tokenization/lexing stage, the input is parsed
|
|
// in one sweep.
|
|
//
|
|
// To make the parser fast enough to run in the browser, several
|
|
// optimization had to be made:
|
|
//
|
|
// - Matching and slicing on a huge input is often cause of slowdowns.
|
|
// The solution is to chunkify the input into smaller strings.
|
|
// The chunks are stored in the `chunks` var,
|
|
// `j` holds the current chunk index, and `currentPos` holds
|
|
// the index of the current chunk in relation to `input`.
|
|
// This gives us an almost 4x speed-up.
|
|
//
|
|
// - In many cases, we don't need to match individual tokens;
|
|
// for example, if a value doesn't hold any variables, operations
|
|
// or dynamic references, the parser can effectively 'skip' it,
|
|
// treating it as a literal.
|
|
// An example would be '1px solid #000' - which evaluates to itself,
|
|
// we don't need to know what the individual components are.
|
|
// The drawback, of course is that you don't get the benefits of
|
|
// syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
|
|
// and a smaller speed-up in the code-gen.
|
|
//
|
|
//
|
|
// Token matching is done with the `$` function, which either takes
|
|
// a terminal string or regexp, or a non-terminal function to call.
|
|
// It also takes care of moving all the indices forwards.
|
|
//
|
|
|
|
const Parser = function Parser(context, imports, fileInfo, currentIndex) {
|
|
currentIndex = currentIndex || 0;
|
|
let parsers;
|
|
const parserInput = getParserInput();
|
|
|
|
function error(msg, type) {
|
|
throw new LessError(
|
|
{
|
|
index: parserInput.i,
|
|
filename: fileInfo.filename,
|
|
type: type || 'Syntax',
|
|
message: msg
|
|
},
|
|
imports
|
|
);
|
|
}
|
|
|
|
const deprecationHandler = new DeprecationHandler();
|
|
|
|
/**
|
|
* @param {string} msg
|
|
* @param {number} index
|
|
* @param {string} type
|
|
* @param {string} [deprecationId] - stable deprecation ID for repetition limiting
|
|
*/
|
|
function warn(msg, index, type, deprecationId) {
|
|
if (context.quiet) { return; }
|
|
if (deprecationId && context.quietDeprecations) { return; }
|
|
if (deprecationId && !deprecationHandler.shouldWarn(deprecationId)) { return; }
|
|
|
|
logger$1.warn(
|
|
(new LessError(
|
|
{
|
|
index: index ?? parserInput.i,
|
|
filename: fileInfo.filename,
|
|
type: type ? `${type.toUpperCase()} WARNING` : 'WARNING',
|
|
message: msg
|
|
},
|
|
imports
|
|
)).toString()
|
|
);
|
|
}
|
|
|
|
function expect(arg, msg) {
|
|
// some older browsers return typeof 'function' for RegExp
|
|
const result = (arg instanceof Function) ? arg.call(parsers) : parserInput.$re(arg);
|
|
if (result) {
|
|
return result;
|
|
}
|
|
|
|
error(msg || (typeof arg === 'string'
|
|
? `expected '${arg}' got '${parserInput.currentChar()}'`
|
|
: 'unexpected token'));
|
|
}
|
|
|
|
// Specialization of expect()
|
|
function expectChar(arg, msg) {
|
|
if (parserInput.$char(arg)) {
|
|
return arg;
|
|
}
|
|
error(msg || `expected '${arg}' got '${parserInput.currentChar()}'`);
|
|
}
|
|
|
|
function getDebugInfo(index) {
|
|
const filename = fileInfo.filename;
|
|
|
|
return {
|
|
lineNumber: getLocation(index, parserInput.getInput()).line + 1,
|
|
fileName: filename
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Used after initial parsing to create nodes on the fly
|
|
*
|
|
* @param {String} str - string to parse
|
|
* @param {Array} parseList - array of parsers to run input through e.g. ["value", "important"]
|
|
* @param {Number} currentIndex - start number to begin indexing
|
|
* @param {Object} fileInfo - fileInfo to attach to created nodes
|
|
*/
|
|
function parseNode(str, parseList, callback) {
|
|
let result;
|
|
const returnNodes = [];
|
|
const parser = parserInput;
|
|
|
|
try {
|
|
parser.start(str);
|
|
for (let x = 0, p; (p = parseList[x]); x++) {
|
|
result = parsers[p]();
|
|
returnNodes.push(result || null);
|
|
}
|
|
|
|
const endInfo = parser.end();
|
|
if (endInfo.isFinished) {
|
|
callback(null, returnNodes);
|
|
}
|
|
else {
|
|
callback(true, null);
|
|
}
|
|
} catch (e) {
|
|
throw new LessError({
|
|
index: e.index + currentIndex,
|
|
message: e.message
|
|
}, imports, fileInfo.filename);
|
|
}
|
|
}
|
|
|
|
//
|
|
// The Parser
|
|
//
|
|
return {
|
|
parserInput,
|
|
imports,
|
|
fileInfo,
|
|
parseNode,
|
|
//
|
|
// Parse an input string into an abstract syntax tree,
|
|
// @param str A string containing 'less' markup
|
|
// @param callback call `callback` when done.
|
|
// @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply
|
|
//
|
|
parse: function (str, callback, additionalData) {
|
|
let root;
|
|
let err = null;
|
|
let globalVars;
|
|
let modifyVars;
|
|
let ignored;
|
|
let preText = '';
|
|
|
|
// Optionally disable @plugin parsing
|
|
if (additionalData && additionalData.disablePluginRule) {
|
|
parsers.plugin = function() {
|
|
var dir = parserInput.$re(/^@plugin?\s+/);
|
|
if (dir) {
|
|
error('@plugin statements are not allowed when disablePluginRule is set to true');
|
|
}
|
|
};
|
|
}
|
|
|
|
globalVars = (additionalData && additionalData.globalVars) ? `${Parser.serializeVars(additionalData.globalVars)}\n` : '';
|
|
modifyVars = (additionalData && additionalData.modifyVars) ? `\n${Parser.serializeVars(additionalData.modifyVars)}` : '';
|
|
|
|
if (context.pluginManager) {
|
|
const preProcessors = context.pluginManager.getPreProcessors();
|
|
for (let i = 0; i < preProcessors.length; i++) {
|
|
str = preProcessors[i].process(str, { context, imports, fileInfo });
|
|
}
|
|
}
|
|
|
|
if (globalVars || (additionalData && additionalData.banner)) {
|
|
preText = ((additionalData && additionalData.banner) ? additionalData.banner : '') + globalVars;
|
|
ignored = imports.contentsIgnoredChars;
|
|
ignored[fileInfo.filename] = ignored[fileInfo.filename] || 0;
|
|
ignored[fileInfo.filename] += preText.length;
|
|
}
|
|
|
|
str = str.replace(/\r\n?/g, '\n');
|
|
// Remove potential UTF Byte Order Mark
|
|
str = preText + str.replace(/^\uFEFF/, '') + modifyVars;
|
|
imports.contents[fileInfo.filename] = str;
|
|
|
|
// Start with the primary rule.
|
|
// The whole syntax tree is held under a Ruleset node,
|
|
// with the `root` property set to true, so no `{}` are
|
|
// output. The callback is called when the input is parsed.
|
|
try {
|
|
parserInput.start(str);
|
|
|
|
tree.Node.prototype.parse = this;
|
|
root = new tree.Ruleset(null, this.parsers.primary());
|
|
tree.Node.prototype.rootNode = root;
|
|
root.root = true;
|
|
root.firstRoot = true;
|
|
root.functionRegistry = functionRegistry.inherit();
|
|
|
|
} catch (e) {
|
|
return callback(new LessError(e, imports, fileInfo.filename));
|
|
}
|
|
|
|
// If `i` is smaller than the `input.length - 1`,
|
|
// it means the parser wasn't able to parse the whole
|
|
// string, so we've got a parsing error.
|
|
//
|
|
// We try to extract a \n delimited string,
|
|
// showing the line where the parse error occurred.
|
|
// We split it up into two parts (the part which parsed,
|
|
// and the part which didn't), so we can color them differently.
|
|
const endInfo = parserInput.end();
|
|
if (!endInfo.isFinished) {
|
|
|
|
let message = endInfo.furthestPossibleErrorMessage;
|
|
|
|
if (!message) {
|
|
message = 'Unrecognised input';
|
|
if (endInfo.furthestChar === '}') {
|
|
message += '. Possibly missing opening \'{\'';
|
|
} else if (endInfo.furthestChar === ')') {
|
|
message += '. Possibly missing opening \'(\'';
|
|
} else if (endInfo.furthestReachedEnd) {
|
|
message += '. Possibly missing something';
|
|
}
|
|
}
|
|
|
|
err = new LessError({
|
|
type: 'Parse',
|
|
message,
|
|
index: endInfo.furthest,
|
|
filename: fileInfo.filename
|
|
}, imports);
|
|
}
|
|
|
|
const finish = e => {
|
|
e = err || e || imports.error;
|
|
|
|
if (e) {
|
|
if (!(e instanceof LessError)) {
|
|
e = new LessError(e, imports, fileInfo.filename);
|
|
}
|
|
|
|
return callback(e);
|
|
}
|
|
else {
|
|
return callback(null, root);
|
|
}
|
|
};
|
|
|
|
if (context.processImports !== false) {
|
|
new visitors.ImportVisitor(imports, finish)
|
|
.run(root);
|
|
} else {
|
|
return finish();
|
|
}
|
|
},
|
|
|
|
//
|
|
// Here in, the parsing rules/functions
|
|
//
|
|
// The basic structure of the syntax tree generated is as follows:
|
|
//
|
|
// Ruleset -> Declaration -> Value -> Expression -> Entity
|
|
//
|
|
// Here's some Less code:
|
|
//
|
|
// .class {
|
|
// color: #fff;
|
|
// border: 1px solid #000;
|
|
// width: @w + 4px;
|
|
// > .child {...}
|
|
// }
|
|
//
|
|
// And here's what the parse tree might look like:
|
|
//
|
|
// Ruleset (Selector '.class', [
|
|
// Declaration ("color", Value ([Expression [Color #fff]]))
|
|
// Declaration ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
|
|
// Declaration ("width", Value ([Expression [Operation " + " [Variable "@w"][Dimension 4px]]]))
|
|
// Ruleset (Selector [Element '>', '.child'], [...])
|
|
// ])
|
|
//
|
|
// In general, most rules will try to parse a token with the `$re()` function, and if the return
|
|
// value is truly, will return a new node, of the relevant type. Sometimes, we need to check
|
|
// first, before parsing, that's when we use `peek()`.
|
|
//
|
|
parsers: parsers = {
|
|
//
|
|
// The `primary` rule is the *entry* and *exit* point of the parser.
|
|
// The rules here can appear at any level of the parse tree.
|
|
//
|
|
// The recursive nature of the grammar is an interplay between the `block`
|
|
// rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
|
|
// as represented by this simplified grammar:
|
|
//
|
|
// primary → (ruleset | declaration)+
|
|
// ruleset → selector+ block
|
|
// block → '{' primary '}'
|
|
//
|
|
// Only at one point is the primary rule not called from the
|
|
// block rule: at the root level.
|
|
//
|
|
primary: function () {
|
|
const mixin = this.mixin;
|
|
let root = [];
|
|
let node;
|
|
|
|
while (true) {
|
|
while (true) {
|
|
node = this.comment();
|
|
if (!node) { break; }
|
|
root.push(node);
|
|
}
|
|
// always process comments before deciding if finished
|
|
if (parserInput.finished) {
|
|
break;
|
|
}
|
|
if (parserInput.peek('}')) {
|
|
break;
|
|
}
|
|
|
|
node = this.extendRule();
|
|
if (node) {
|
|
root = root.concat(node);
|
|
continue;
|
|
}
|
|
|
|
node = mixin.definition() || this.declaration() || mixin.call(false, false) ||
|
|
this.ruleset() || this.variableCall() || this.entities.call() || this.atrule();
|
|
if (node) {
|
|
root.push(node);
|
|
} else {
|
|
let foundSemiColon = false;
|
|
while (parserInput.$char(';')) {
|
|
foundSemiColon = true;
|
|
}
|
|
if (!foundSemiColon) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return root;
|
|
},
|
|
|
|
// comments are collected by the main parsing mechanism and then assigned to nodes
|
|
// where the current structure allows it
|
|
comment: function () {
|
|
if (parserInput.commentStore.length) {
|
|
const comment = parserInput.commentStore.shift();
|
|
return new(tree.Comment)(comment.text, comment.isLineComment, comment.index + currentIndex, fileInfo);
|
|
}
|
|
},
|
|
|
|
//
|
|
// Entities are tokens which can be found inside an Expression
|
|
//
|
|
entities: {
|
|
mixinLookup: function() {
|
|
return parsers.mixin.call(true, true);
|
|
},
|
|
//
|
|
// A string, which supports escaping " and '
|
|
//
|
|
// "milky way" 'he\'s the one!'
|
|
//
|
|
quoted: function (forceEscaped) {
|
|
let str;
|
|
const index = parserInput.i;
|
|
let isEscaped = false;
|
|
|
|
parserInput.save();
|
|
if (parserInput.$char('~')) {
|
|
isEscaped = true;
|
|
} else if (forceEscaped) {
|
|
parserInput.restore();
|
|
return;
|
|
}
|
|
|
|
str = parserInput.$quoted();
|
|
if (!str) {
|
|
parserInput.restore();
|
|
return;
|
|
}
|
|
parserInput.forget();
|
|
|
|
return new(tree.Quoted)(str.charAt(0), str.slice(1, -1), isEscaped, index + currentIndex, fileInfo);
|
|
},
|
|
|
|
//
|
|
// A catch-all word, such as:
|
|
//
|
|
// black border-collapse
|
|
//
|
|
keyword: function () {
|
|
const k = parserInput.$char('%') || parserInput.$re(/^\[?(?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+\]?/);
|
|
if (k) {
|
|
return tree.Color.fromKeyword(k) || new(tree.Keyword)(k);
|
|
}
|
|
},
|
|
|
|
//
|
|
// A function call
|
|
//
|
|
// rgb(255, 0, 255)
|
|
//
|
|
// The arguments are parsed with the `entities.arguments` parser.
|
|
//
|
|
call: function () {
|
|
let name;
|
|
let args;
|
|
let func;
|
|
const index = parserInput.i;
|
|
|
|
// http://jsperf.com/case-insensitive-regex-vs-strtolower-then-regex/18
|
|
if (parserInput.peek(/^url\(/i)) {
|
|
return;
|
|
}
|
|
|
|
parserInput.save();
|
|
|
|
name = parserInput.$re(/^([\w-]+|%|~|progid:[\w.]+)\(/);
|
|
if (!name) {
|
|
parserInput.forget();
|
|
return;
|
|
}
|
|
|
|
name = name[1];
|
|
func = this.customFuncCall(name);
|
|
if (func) {
|
|
args = func.parse();
|
|
if (args && func.stop) {
|
|
parserInput.forget();
|
|
return args;
|
|
}
|
|
}
|
|
|
|
args = this.arguments(args);
|
|
|
|
if (!parserInput.$char(')')) {
|
|
parserInput.restore('Could not parse call arguments or missing \')\'');
|
|
return;
|
|
}
|
|
|
|
parserInput.forget();
|
|
|
|
return new(tree.Call)(name, args, index + currentIndex, fileInfo);
|
|
},
|
|
|
|
declarationCall: function () {
|
|
let validCall;
|
|
let args;
|
|
const index = parserInput.i;
|
|
|
|
parserInput.save();
|
|
|
|
validCall = parserInput.$re(/^[\w]+\(/);
|
|
if (!validCall) {
|
|
parserInput.forget();
|
|
return;
|
|
}
|
|
|
|
validCall = validCall.substring(0, validCall.length - 1);
|
|
|
|
// CSS at-rule keywords should never be parsed as declaration calls
|
|
if (/^(and|or|not|only|layer)$/i.test(validCall)) {
|
|
parserInput.restore();
|
|
return;
|
|
}
|
|
|
|
let rule = this.ruleProperty();
|
|
let value;
|
|
|
|
if (rule) {
|
|
value = this.value();
|
|
}
|
|
|
|
if (rule && value) {
|
|
args = [new (tree.Declaration)(rule, value, null, null, parserInput.i + currentIndex, fileInfo, true)];
|
|
}
|
|
|
|
if (!parserInput.$char(')')) {
|
|
parserInput.restore('Could not parse call arguments or missing \')\'');
|
|
return;
|
|
}
|
|
|
|
parserInput.forget();
|
|
|
|
return new(tree.Call)(validCall, args, index + currentIndex, fileInfo);
|
|
},
|
|
|
|
//
|
|
// Parsing rules for functions with non-standard args, e.g.:
|
|
//
|
|
// boolean(not(2 > 1))
|
|
//
|
|
// This is a quick prototype, to be modified/improved when
|
|
// more custom-parsed funcs come (e.g. `selector(...)`)
|
|
//
|
|
|
|
customFuncCall: function (name) {
|
|
/* Ideally the table is to be moved out of here for faster perf.,
|
|
but it's quite tricky since it relies on all these `parsers`
|
|
and `expect` available only here */
|
|
return {
|
|
alpha: f(parsers.ieAlpha, true),
|
|
boolean: f(condition),
|
|
'if': f(condition)
|
|
}[name.toLowerCase()];
|
|
|
|
function f(parse, stop) {
|
|
return {
|
|
parse, // parsing function
|
|
stop // when true - stop after parse() and return its result,
|
|
// otherwise continue for plain args
|
|
};
|
|
}
|
|
|
|
function condition() {
|
|
return [expect(parsers.condition, 'expected condition')];
|
|
}
|
|
},
|
|
|
|
arguments: function (prevArgs) {
|
|
let argsComma = prevArgs || [];
|
|
const argsSemiColon = [];
|
|
let isSemiColonSeparated;
|
|
let value;
|
|
|
|
parserInput.save();
|
|
|
|
while (true) {
|
|
if (prevArgs) {
|
|
prevArgs = false;
|
|
} else {
|
|
value = parsers.detachedRuleset() || this.assignment() || parsers.expression();
|
|
if (!value) {
|
|
break;
|
|
}
|
|
|
|
if (value.value && value.value.length == 1) {
|
|
value = value.value[0];
|
|
}
|
|
|
|
argsComma.push(value);
|
|
}
|
|
|
|
if (parserInput.$char(',')) {
|
|
continue;
|
|
}
|
|
|
|
if (parserInput.$char(';') || isSemiColonSeparated) {
|
|
isSemiColonSeparated = true;
|
|
value = (argsComma.length < 1) ? argsComma[0]
|
|
: new tree.Value(argsComma);
|
|
argsSemiColon.push(value);
|
|
argsComma = [];
|
|
}
|
|
}
|
|
|
|
parserInput.forget();
|
|
return isSemiColonSeparated ? argsSemiColon : argsComma;
|
|
},
|
|
literal: function () {
|
|
return this.dimension() ||
|
|
this.color() ||
|
|
this.quoted() ||
|
|
this.unicodeDescriptor();
|
|
},
|
|
|
|
// Assignments are argument entities for calls.
|
|
// They are present in ie filter properties as shown below.
|
|
//
|
|
// filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* )
|
|
//
|
|
|
|
assignment: function () {
|
|
let key;
|
|
let value;
|
|
parserInput.save();
|
|
key = parserInput.$re(/^\w+(?=\s?=)/i);
|
|
if (!key) {
|
|
parserInput.restore();
|
|
return;
|
|
}
|
|
if (!parserInput.$char('=')) {
|
|
parserInput.restore();
|
|
return;
|
|
}
|
|
value = parsers.entity();
|
|
if (value) {
|
|
parserInput.forget();
|
|
return new(tree.Assignment)(key, value);
|
|
} else {
|
|
parserInput.restore();
|
|
}
|
|
},
|
|
|
|
//
|
|
// Parse url() tokens
|
|
//
|
|
// We use a specific rule for urls, because they don't really behave like
|
|
// standard function calls. The difference is that the argument doesn't have
|
|
// to be enclosed within a string, so it can't be parsed as an Expression.
|
|
//
|
|
url: function () {
|
|
let value;
|
|
const index = parserInput.i;
|
|
|
|
parserInput.autoCommentAbsorb = false;
|
|
|
|
if (!parserInput.$str('url(')) {
|
|
parserInput.autoCommentAbsorb = true;
|
|
return;
|
|
}
|
|
|
|
value = this.quoted() || this.variable() || this.property() ||
|
|
parserInput.$re(/^(?:(?:\\[()'"])|[^()'"])+/) || '';
|
|
|
|
parserInput.autoCommentAbsorb = true;
|
|
|
|
expectChar(')');
|
|
|
|
return new(tree.URL)((value.value !== undefined ||
|
|
value instanceof tree.Variable ||
|
|
value instanceof tree.Property) ?
|
|
value : new(tree.Anonymous)(value, index), index + currentIndex, fileInfo);
|
|
},
|
|
|
|
//
|
|
// A Variable entity, such as `@fink`, in
|
|
//
|
|
// width: @fink + 2px
|
|
//
|
|
// We use a different parser for variable definitions,
|
|
// see `parsers.variable`.
|
|
//
|
|
variable: function () {
|
|
let ch;
|
|
let name;
|
|
const index = parserInput.i;
|
|
|
|
parserInput.save();
|
|
if (parserInput.currentChar() === '@' && (name = parserInput.$re(/^@@?[\w-]+/))) {
|
|
ch = parserInput.currentChar();
|
|
if ((ch === '(' && !parserInput.prevChar().match(/^\s/))
|
|
|| (ch === '[' && !parserInput.prevChar().match(/^\s/))) {
|
|
// this may be a VariableCall lookup
|
|
const result = parsers.variableCall(name);
|
|
if (result) {
|
|
parserInput.forget();
|
|
return result;
|
|
}
|
|
}
|
|
parserInput.forget();
|
|
return new(tree.Variable)(name, index + currentIndex, fileInfo);
|
|
}
|
|
parserInput.restore();
|
|
},
|
|
|
|
// A variable entity using the protective {} e.g. @{var}
|
|
variableCurly: function () {
|
|
let curly;
|
|
const index = parserInput.i;
|
|
|
|
if (parserInput.currentChar() === '@' && (curly = parserInput.$re(/^@\{([\w-]+)\}/))) {
|
|
return new(tree.Variable)(`@${curly[1]}`, index + currentIndex, fileInfo);
|
|
}
|
|
},
|
|
//
|
|
// A Property accessor, such as `$color`, in
|
|
//
|
|
// background-color: $color
|
|
//
|
|
property: function () {
|
|
let name;
|
|
const index = parserInput.i;
|
|
|
|
if (parserInput.currentChar() === '$' && (name = parserInput.$re(/^\$[\w-]+/))) {
|
|
return new(tree.Property)(name, index + currentIndex, fileInfo);
|
|
}
|
|
},
|
|
|
|
//
|
|
// A Hexadecimal color
|
|
//
|
|
// #4F3C2F
|
|
//
|
|
// `rgb` and `hsl` colors are parsed through the `entities.call` parser.
|
|
//
|
|
color: function () {
|
|
let rgb;
|
|
parserInput.save();
|
|
|
|
if (parserInput.currentChar() === '#' && (rgb = parserInput.$re(/^#([A-Fa-f0-9]{8}|[A-Fa-f0-9]{6}|[A-Fa-f0-9]{3,4})([\w.#[])?/))) {
|
|
if (!rgb[2]) {
|
|
parserInput.forget();
|
|
return new(tree.Color)(rgb[1], undefined, rgb[0]);
|
|
}
|
|
}
|
|
parserInput.restore();
|
|
},
|
|
|
|
colorKeyword: function () {
|
|
parserInput.save();
|
|
const autoCommentAbsorb = parserInput.autoCommentAbsorb;
|
|
parserInput.autoCommentAbsorb = false;
|
|
const k = parserInput.$re(/^[_A-Za-z-][_A-Za-z0-9-]+/);
|
|
parserInput.autoCommentAbsorb = autoCommentAbsorb;
|
|
if (!k) {
|
|
parserInput.forget();
|
|
return;
|
|
}
|
|
parserInput.restore();
|
|
const color = tree.Color.fromKeyword(k);
|
|
if (color) {
|
|
parserInput.$str(k);
|
|
return color;
|
|
}
|
|
},
|
|
|
|
//
|
|
// A Dimension, that is, a number and a unit
|
|
//
|
|
// 0.5em 95%
|
|
//
|
|
dimension: function () {
|
|
if (parserInput.peekNotNumeric()) {
|
|
return;
|
|
}
|
|
|
|
const value = parserInput.$re(/^([+-]?\d*\.?\d+)(%|[a-z_]+)?/i);
|
|
if (value) {
|
|
return new(tree.Dimension)(value[1], value[2]);
|
|
}
|
|
},
|
|
|
|
//
|
|
// A unicode descriptor, as is used in unicode-range
|
|
//
|
|
// U+0?? or U+00A1-00A9
|
|
//
|
|
unicodeDescriptor: function () {
|
|
let ud;
|
|
|
|
ud = parserInput.$re(/^U\+[0-9a-fA-F?]+(-[0-9a-fA-F?]+)?/);
|
|
if (ud) {
|
|
return new(tree.UnicodeDescriptor)(ud[0]);
|
|
}
|
|
},
|
|
|
|
//
|
|
// JavaScript code to be evaluated
|
|
//
|
|
// `window.location.href`
|
|
//
|
|
javascript: function () {
|
|
let js;
|
|
const index = parserInput.i;
|
|
|
|
parserInput.save();
|
|
|
|
const escape = parserInput.$char('~');
|
|
const jsQuote = parserInput.$char('`');
|
|
|
|
if (!jsQuote) {
|
|
parserInput.restore();
|
|
return;
|
|
}
|
|
|
|
js = parserInput.$re(/^[^`]*`/);
|
|
if (js) {
|
|
warn('Inline JavaScript evaluation (backtick expressions) is deprecated and will be removed in Less 5.x. Use Less functions or custom plugins instead.', index, 'DEPRECATED', 'js-eval');
|
|
parserInput.forget();
|
|
return new(tree.JavaScript)(js.slice(0, -1), Boolean(escape), index + currentIndex, fileInfo);
|
|
}
|
|
parserInput.restore('invalid javascript definition');
|
|
}
|
|
},
|
|
|
|
//
|
|
// The variable part of a variable definition. Used in the `rule` parser
|
|
//
|
|
// @fink:
|
|
//
|
|
variable: function () {
|
|
let name;
|
|
|
|
if (parserInput.currentChar() === '@' && (name = parserInput.$re(/^(@[\w-]+)\s*:/))) { return name[1]; }
|
|
},
|
|
|
|
//
|
|
// Call a variable value to retrieve a detached ruleset
|
|
// or a value from a detached ruleset's rules.
|
|
//
|
|
// @fink();
|
|
// @fink;
|
|
// color: @fink[@color];
|
|
//
|
|
variableCall: function (parsedName) {
|
|
let lookups;
|
|
const i = parserInput.i;
|
|
const inValue = !!parsedName;
|
|
let name = parsedName;
|
|
|
|
parserInput.save();
|
|
|
|
if (name || (parserInput.currentChar() === '@'
|
|
&& (name = parserInput.$re(/^(@[\w-]+)(\(\s*\))?/)))) {
|
|
|
|
lookups = this.mixin.ruleLookups();
|
|
|
|
if (!lookups && ((inValue && parserInput.$str('()') !== '()') || (name[2] !== '()'))) {
|
|
parserInput.restore('Missing \'[...]\' lookup in variable call');
|
|
return;
|
|
}
|
|
|
|
if (!inValue) {
|
|
name = name[1];
|
|
}
|
|
|
|
const call = new tree.VariableCall(name, i, fileInfo);
|
|
if (!inValue && parsers.end()) {
|
|
parserInput.forget();
|
|
return call;
|
|
}
|
|
else {
|
|
parserInput.forget();
|
|
return new tree.NamespaceValue(call, lookups, i, fileInfo);
|
|
}
|
|
}
|
|
|
|
parserInput.restore();
|
|
},
|
|
|
|
//
|
|
// extend syntax - used to extend selectors
|
|
//
|
|
extend: function(isRule) {
|
|
let elements;
|
|
let e;
|
|
const index = parserInput.i;
|
|
let option;
|
|
let extendList;
|
|
let extend;
|
|
|
|
if (!parserInput.$str(isRule ? '&:extend(' : ':extend(')) {
|
|
return;
|
|
}
|
|
|
|
do {
|
|
option = null;
|
|
elements = null;
|
|
let first = true;
|
|
while (!(option = parserInput.$re(/^(!?all)(?=\s*(\)|,))/))) {
|
|
e = this.element();
|
|
|
|
if (!e) {
|
|
break;
|
|
}
|
|
/**
|
|
* @note - This will not catch selectors in pseudos like :is() and :where() because
|
|
* they don't currently parse their contents as selectors.
|
|
*/
|
|
if (!first && e.combinator.value) {
|
|
warn('Targeting complex selectors can have unexpected behavior, and this behavior may change in the future.', index);
|
|
}
|
|
|
|
first = false;
|
|
if (elements) {
|
|
elements.push(e);
|
|
} else {
|
|
elements = [ e ];
|
|
}
|
|
}
|
|
|
|
option = option && option[1];
|
|
if (!elements) {
|
|
error('Missing target selector for :extend().');
|
|
}
|
|
extend = new(tree.Extend)(new(tree.Selector)(elements), option, index + currentIndex, fileInfo);
|
|
if (extendList) {
|
|
extendList.push(extend);
|
|
} else {
|
|
extendList = [ extend ];
|
|
}
|
|
} while (parserInput.$char(','));
|
|
|
|
expect(/^\)/);
|
|
|
|
if (isRule) {
|
|
expect(/^;/);
|
|
}
|
|
|
|
return extendList;
|
|
},
|
|
|
|
//
|
|
// extendRule - used in a rule to extend all the parent selectors
|
|
//
|
|
extendRule: function() {
|
|
return this.extend(true);
|
|
},
|
|
|
|
//
|
|
// Mixins
|
|
//
|
|
mixin: {
|
|
//
|
|
// A Mixin call, with an optional argument list
|
|
//
|
|
// #mixins > .square(#fff);
|
|
// #mixins.square(#fff);
|
|
// .rounded(4px, black);
|
|
// .button;
|
|
//
|
|
// We can lookup / return a value using the lookup syntax:
|
|
//
|
|
// color: #mixin.square(#fff)[@color];
|
|
//
|
|
// The `while` loop is there because mixins can be
|
|
// namespaced, but we only support the child and descendant
|
|
// selector for now.
|
|
//
|
|
call: function (inValue, getLookup) {
|
|
const s = parserInput.currentChar();
|
|
let important = false;
|
|
let lookups;
|
|
const index = parserInput.i;
|
|
let elements;
|
|
let args;
|
|
let hasParens;
|
|
let parensIndex;
|
|
let parensWS = false;
|
|
|
|
if (s !== '.' && s !== '#') { return; }
|
|
|
|
parserInput.save(); // stop us absorbing part of an invalid selector
|
|
|
|
elements = this.elements();
|
|
|
|
if (elements) {
|
|
parensIndex = parserInput.i;
|
|
parensWS = parserInput.isWhitespace(-1);
|
|
if (parserInput.$char('(')) {
|
|
args = this.args(true).args;
|
|
expectChar(')');
|
|
hasParens = true;
|
|
if (parensWS) {
|
|
warn('Whitespace between a mixin name and parentheses for a mixin call is deprecated', parensIndex, 'DEPRECATED', 'mixin-call-whitespace');
|
|
}
|
|
}
|
|
|
|
if (getLookup !== false) {
|
|
lookups = this.ruleLookups();
|
|
}
|
|
if (getLookup === true && !lookups) {
|
|
parserInput.restore();
|
|
return;
|
|
}
|
|
|
|
if (inValue && !lookups && !hasParens) {
|
|
// This isn't a valid in-value mixin call
|
|
parserInput.restore();
|
|
return;
|
|
}
|
|
|
|
if (!inValue && parsers.important()) {
|
|
important = true;
|
|
}
|
|
|
|
if (inValue || parsers.end()) {
|
|
parserInput.forget();
|
|
const mixin = new(tree.mixin.Call)(elements, args, index + currentIndex, fileInfo, !lookups && important);
|
|
if (lookups) {
|
|
return new tree.NamespaceValue(mixin, lookups);
|
|
}
|
|
else {
|
|
if (!hasParens) {
|
|
warn('Calling a mixin without parentheses is deprecated', parensIndex, 'DEPRECATED', 'mixin-call-no-parens');
|
|
}
|
|
return mixin;
|
|
}
|
|
}
|
|
}
|
|
|
|
parserInput.restore();
|
|
},
|
|
/**
|
|
* Matching elements for mixins
|
|
* (Start with . or # and can have > )
|
|
*/
|
|
elements: function() {
|
|
let elements;
|
|
let e;
|
|
let c;
|
|
let elem;
|
|
let elemIndex;
|
|
const re = /^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/;
|
|
while (true) {
|
|
elemIndex = parserInput.i;
|
|
e = parserInput.$re(re);
|
|
|
|
if (!e) {
|
|
break;
|
|
}
|
|
elem = new(tree.Element)(c, e, false, elemIndex + currentIndex, fileInfo);
|
|
if (elements) {
|
|
elements.push(elem);
|
|
} else {
|
|
elements = [ elem ];
|
|
}
|
|
c = parserInput.$char('>');
|
|
}
|
|
return elements;
|
|
},
|
|
args: function (isCall) {
|
|
const entities = parsers.entities;
|
|
const returner = { args:null, variadic: false };
|
|
let expressions = [];
|
|
const argsSemiColon = [];
|
|
const argsComma = [];
|
|
let isSemiColonSeparated;
|
|
let expressionContainsNamed;
|
|
let name;
|
|
let nameLoop;
|
|
let value;
|
|
let arg;
|
|
let expand;
|
|
let hasSep = true;
|
|
|
|
parserInput.save();
|
|
|
|
while (true) {
|
|
if (isCall) {
|
|
arg = parsers.detachedRuleset() || parsers.expression();
|
|
} else {
|
|
parserInput.commentStore.length = 0;
|
|
if (parserInput.$str('...')) {
|
|
returner.variadic = true;
|
|
if (parserInput.$char(';') && !isSemiColonSeparated) {
|
|
isSemiColonSeparated = true;
|
|
}
|
|
(isSemiColonSeparated ? argsSemiColon : argsComma)
|
|
.push({ variadic: true });
|
|
break;
|
|
}
|
|
arg = entities.variable() || entities.property() || entities.literal() || entities.keyword() || this.call(true);
|
|
}
|
|
|
|
if (!arg || !hasSep) {
|
|
break;
|
|
}
|
|
|
|
nameLoop = null;
|
|
if (arg.throwAwayComments) {
|
|
arg.throwAwayComments();
|
|
}
|
|
value = arg;
|
|
let val = null;
|
|
|
|
if (isCall) {
|
|
// Variable
|
|
if (arg.value && arg.value.length == 1) {
|
|
val = arg.value[0];
|
|
}
|
|
} else {
|
|
val = arg;
|
|
}
|
|
|
|
if (val && (val instanceof tree.Variable || val instanceof tree.Property)) {
|
|
if (parserInput.$char(':')) {
|
|
if (expressions.length > 0) {
|
|
if (isSemiColonSeparated) {
|
|
error('Cannot mix ; and , as delimiter types');
|
|
}
|
|
expressionContainsNamed = true;
|
|
}
|
|
|
|
value = parsers.detachedRuleset() || parsers.expression();
|
|
|
|
if (!value) {
|
|
if (isCall) {
|
|
error('could not understand value for named argument');
|
|
} else {
|
|
parserInput.restore();
|
|
returner.args = [];
|
|
return returner;
|
|
}
|
|
}
|
|
nameLoop = (name = val.name);
|
|
} else if (parserInput.$str('...')) {
|
|
if (!isCall) {
|
|
returner.variadic = true;
|
|
if (parserInput.$char(';') && !isSemiColonSeparated) {
|
|
isSemiColonSeparated = true;
|
|
}
|
|
(isSemiColonSeparated ? argsSemiColon : argsComma)
|
|
.push({ name: arg.name, variadic: true });
|
|
break;
|
|
} else {
|
|
expand = true;
|
|
}
|
|
} else if (!isCall) {
|
|
name = nameLoop = val.name;
|
|
value = null;
|
|
}
|
|
}
|
|
|
|
if (value) {
|
|
expressions.push(value);
|
|
}
|
|
|
|
argsComma.push({ name:nameLoop, value, expand });
|
|
|
|
if (parserInput.$char(',')) {
|
|
hasSep = true;
|
|
continue;
|
|
}
|
|
hasSep = parserInput.$char(';') === ';';
|
|
|
|
if (hasSep || isSemiColonSeparated) {
|
|
|
|
if (expressionContainsNamed) {
|
|
error('Cannot mix ; and , as delimiter types');
|
|
}
|
|
|
|
isSemiColonSeparated = true;
|
|
|
|
if (expressions.length > 1) {
|
|
value = new(tree.Value)(expressions);
|
|
}
|
|
argsSemiColon.push({ name, value, expand });
|
|
|
|
name = null;
|
|
expressions = [];
|
|
expressionContainsNamed = false;
|
|
}
|
|
}
|
|
|
|
parserInput.forget();
|
|
returner.args = isSemiColonSeparated ? argsSemiColon : argsComma;
|
|
return returner;
|
|
},
|
|
//
|
|
// A Mixin definition, with a list of parameters
|
|
//
|
|
// .rounded (@radius: 2px, @color) {
|
|
// ...
|
|
// }
|
|
//
|
|
// Until we have a finer grained state-machine, we have to
|
|
// do a look-ahead, to make sure we don't have a mixin call.
|
|
// See the `rule` function for more information.
|
|
//
|
|
// We start by matching `.rounded (`, and then proceed on to
|
|
// the argument list, which has optional default values.
|
|
// We store the parameters in `params`, with a `value` key,
|
|
// if there is a value, such as in the case of `@radius`.
|
|
//
|
|
// Once we've got our params list, and a closing `)`, we parse
|
|
// the `{...}` block.
|
|
//
|
|
definition: function () {
|
|
let name;
|
|
let params = [];
|
|
let match;
|
|
let ruleset;
|
|
let cond;
|
|
let variadic = false;
|
|
if ((parserInput.currentChar() !== '.' && parserInput.currentChar() !== '#') ||
|
|
parserInput.peek(/^[^{]*\}/)) {
|
|
return;
|
|
}
|
|
|
|
parserInput.save();
|
|
|
|
match = parserInput.$re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/);
|
|
if (match) {
|
|
name = match[1];
|
|
|
|
const argInfo = this.args(false);
|
|
params = argInfo.args;
|
|
variadic = argInfo.variadic;
|
|
|
|
// .mixincall("@{a}");
|
|
// looks a bit like a mixin definition..
|
|
// also
|
|
// .mixincall(@a: {rule: set;});
|
|
// so we have to be nice and restore
|
|
if (!parserInput.$char(')')) {
|
|
parserInput.restore('Missing closing \')\'');
|
|
return;
|
|
}
|
|
|
|
parserInput.commentStore.length = 0;
|
|
|
|
if (parserInput.$str('when')) { // Guard
|
|
cond = expect(parsers.conditions, 'expected condition');
|
|
}
|
|
|
|
ruleset = parsers.block();
|
|
|
|
if (ruleset) {
|
|
parserInput.forget();
|
|
return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic);
|
|
} else {
|
|
parserInput.restore();
|
|
}
|
|
} else {
|
|
parserInput.restore();
|
|
}
|
|
},
|
|
|
|
ruleLookups: function() {
|
|
let rule;
|
|
const lookups = [];
|
|
|
|
if (parserInput.currentChar() !== '[') {
|
|
return;
|
|
}
|
|
|
|
while (true) {
|
|
parserInput.save();
|
|
rule = this.lookupValue();
|
|
if (!rule && rule !== '') {
|
|
parserInput.restore();
|
|
break;
|
|
}
|
|
lookups.push(rule);
|
|
parserInput.forget();
|
|
}
|
|
if (lookups.length > 0) {
|
|
return lookups;
|
|
}
|
|
},
|
|
|
|
lookupValue: function() {
|
|
parserInput.save();
|
|
|
|
if (!parserInput.$char('[')) {
|
|
parserInput.restore();
|
|
return;
|
|
}
|
|
|
|
const name = parserInput.$re(/^(?:[@$]{0,2})[_a-zA-Z0-9-]*/);
|
|
|
|
if (!parserInput.$char(']')) {
|
|
parserInput.restore();
|
|
return;
|
|
}
|
|
|
|
if (name || name === '') {
|
|
parserInput.forget();
|
|
return name;
|
|
}
|
|
|
|
parserInput.restore();
|
|
}
|
|
},
|
|
//
|
|
// Entities are the smallest recognized token,
|
|
// and can be found inside a rule's value.
|
|
//
|
|
entity: function () {
|
|
const entities = this.entities;
|
|
|
|
return this.comment() || entities.literal() || entities.variable() || entities.url() ||
|
|
entities.property() || entities.call() || entities.keyword() || this.mixin.call(true) ||
|
|
entities.javascript();
|
|
},
|
|
|
|
//
|
|
// A Declaration terminator. Note that we use `peek()` to check for '}',
|
|
// because the `block` rule will be expecting it, but we still need to make sure
|
|
// it's there, if ';' was omitted.
|
|
//
|
|
end: function () {
|
|
return parserInput.$char(';') || parserInput.peek('}');
|
|
},
|
|
|
|
//
|
|
// IE's alpha function
|
|
//
|
|
// alpha(opacity=88)
|
|
//
|
|
ieAlpha: function () {
|
|
let value;
|
|
|
|
// http://jsperf.com/case-insensitive-regex-vs-strtolower-then-regex/18
|
|
if (!parserInput.$re(/^opacity=/i)) { return; }
|
|
value = parserInput.$re(/^\d+/);
|
|
if (!value) {
|
|
value = expect(parsers.entities.variable, 'Could not parse alpha');
|
|
value = `@{${value.name.slice(1)}}`;
|
|
}
|
|
expectChar(')');
|
|
return new tree.Quoted('', `alpha(opacity=${value})`);
|
|
},
|
|
|
|
/**
|
|
* A Selector Element
|
|
*
|
|
* div
|
|
* + h1
|
|
* #socks
|
|
* input[type="text"]
|
|
*
|
|
* Elements are the building blocks for Selectors,
|
|
* they are made out of a `Combinator` (see combinator rule),
|
|
* and an element name, such as a tag a class, or `*`.
|
|
*/
|
|
element: function () {
|
|
let e;
|
|
let c;
|
|
let v;
|
|
const index = parserInput.i;
|
|
|
|
c = this.combinator();
|
|
|
|
/** This selector parser is quite simplistic and will pass a number of invalid selectors. */
|
|
e = parserInput.$re(/^(?:\d+\.\d+|\d+)%/) ||
|
|
// eslint-disable-next-line no-control-regex
|
|
parserInput.$re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) ||
|
|
parserInput.$char('*') || parserInput.$char('&') || this.attribute() ||
|
|
parserInput.$re(/^\([^&()@]+\)/) || parserInput.$re(/^[.#:](?=@)/) ||
|
|
this.entities.variableCurly();
|
|
|
|
if (!e) {
|
|
parserInput.save();
|
|
if (parserInput.$char('(')) {
|
|
if ((v = this.selector(false))) {
|
|
let selectors = [];
|
|
while (parserInput.$char(',')) {
|
|
selectors.push(v);
|
|
selectors.push(new Anonymous(','));
|
|
v = this.selector(false);
|
|
}
|
|
selectors.push(v);
|
|
|
|
if (parserInput.$char(')')) {
|
|
if (selectors.length > 1) {
|
|
e = new (tree.Paren)(new Selector(selectors));
|
|
} else {
|
|
e = new(tree.Paren)(v);
|
|
}
|
|
parserInput.forget();
|
|
} else {
|
|
parserInput.restore('Missing closing \')\'');
|
|
}
|
|
} else {
|
|
parserInput.restore('Missing closing \')\'');
|
|
}
|
|
} else {
|
|
parserInput.forget();
|
|
}
|
|
}
|
|
|
|
if (e) { return new(tree.Element)(c, e, e instanceof tree.Variable, index + currentIndex, fileInfo); }
|
|
},
|
|
|
|
//
|
|
// Combinators combine elements together, in a Selector.
|
|
//
|
|
// Because our parser isn't white-space sensitive, special care
|
|
// has to be taken, when parsing the descendant combinator, ` `,
|
|
// as it's an empty space. We have to check the previous character
|
|
// in the input, to see if it's a ` ` character. More info on how
|
|
// we deal with this in *combinator.js*.
|
|
//
|
|
combinator: function () {
|
|
let c = parserInput.currentChar();
|
|
|
|
if (c === '/') {
|
|
parserInput.save();
|
|
const slashedCombinator = parserInput.$re(/^\/[a-z]+\//i);
|
|
if (slashedCombinator) {
|
|
parserInput.forget();
|
|
return new(tree.Combinator)(slashedCombinator);
|
|
}
|
|
parserInput.restore();
|
|
}
|
|
|
|
if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') {
|
|
parserInput.i++;
|
|
if (c === '^' && parserInput.currentChar() === '^') {
|
|
c = '^^';
|
|
parserInput.i++;
|
|
}
|
|
while (parserInput.isWhitespace()) { parserInput.i++; }
|
|
return new(tree.Combinator)(c);
|
|
} else if (parserInput.isWhitespace(-1)) {
|
|
return new(tree.Combinator)(' ');
|
|
} else {
|
|
return new(tree.Combinator)(null);
|
|
}
|
|
},
|
|
//
|
|
// A CSS Selector
|
|
// with less extensions e.g. the ability to extend and guard
|
|
//
|
|
// .class > div + h1
|
|
// li a:hover
|
|
//
|
|
// Selectors are made out of one or more Elements, see above.
|
|
//
|
|
selector: function (isLess) {
|
|
const index = parserInput.i;
|
|
let elements;
|
|
let extendList;
|
|
let c;
|
|
let e;
|
|
let allExtends;
|
|
let when;
|
|
let condition;
|
|
isLess = isLess !== false;
|
|
while ((isLess && (extendList = this.extend())) || (isLess && (when = parserInput.$str('when'))) || (e = this.element())) {
|
|
if (when) {
|
|
condition = expect(this.conditions, 'expected condition');
|
|
} else if (condition) {
|
|
error('CSS guard can only be used at the end of selector');
|
|
} else if (extendList) {
|
|
if (allExtends) {
|
|
allExtends = allExtends.concat(extendList);
|
|
} else {
|
|
allExtends = extendList;
|
|
}
|
|
} else {
|
|
if (allExtends) { error('Extend can only be used at the end of selector'); }
|
|
c = parserInput.currentChar();
|
|
if (Array.isArray(e)){
|
|
e.forEach(ele => elements.push(ele));
|
|
} if (elements) {
|
|
elements.push(e);
|
|
} else {
|
|
elements = [ e ];
|
|
}
|
|
e = null;
|
|
}
|
|
if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (elements) { return new(tree.Selector)(elements, allExtends, condition, index + currentIndex, fileInfo); }
|
|
if (allExtends) { error('Extend must be used to extend a selector, it cannot be used on its own'); }
|
|
},
|
|
selectors: function () {
|
|
let s;
|
|
let selectors;
|
|
while (true) {
|
|
s = this.selector();
|
|
if (!s) {
|
|
break;
|
|
}
|
|
if (selectors) {
|
|
selectors.push(s);
|
|
} else {
|
|
selectors = [ s ];
|
|
}
|
|
parserInput.commentStore.length = 0;
|
|
if (s.condition && selectors.length > 1) {
|
|
error('Guards are only currently allowed on a single selector.');
|
|
}
|
|
if (!parserInput.$char(',')) { break; }
|
|
if (s.condition) {
|
|
error('Guards are only currently allowed on a single selector.');
|
|
}
|
|
parserInput.commentStore.length = 0;
|
|
}
|
|
return selectors;
|
|
},
|
|
attribute: function () {
|
|
if (!parserInput.$char('[')) { return; }
|
|
|
|
const entities = this.entities;
|
|
let key;
|
|
let val;
|
|
let op;
|
|
//
|
|
// case-insensitive flag
|
|
// e.g. [attr operator value i]
|
|
//
|
|
let cif;
|
|
|
|
if (!(key = entities.variableCurly())) {
|
|
key = expect(/^(?:[_A-Za-z0-9-*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/);
|
|
}
|
|
|
|
op = parserInput.$re(/^[|~*$^]?=/);
|
|
if (op) {
|
|
val = entities.quoted() || parserInput.$re(/^[0-9]+%/) || parserInput.$re(/^[\w-]+/) || entities.variableCurly();
|
|
if (val) {
|
|
cif = parserInput.$re(/^[iIsS]/);
|
|
}
|
|
}
|
|
|
|
expectChar(']');
|
|
|
|
return new(tree.Attribute)(key, op, val, cif);
|
|
},
|
|
|
|
//
|
|
// The `block` rule is used by `ruleset` and `mixin.definition`.
|
|
// It's a wrapper around the `primary` rule, with added `{}`.
|
|
//
|
|
block: function () {
|
|
let content;
|
|
if (parserInput.$char('{') && (content = this.primary()) && parserInput.$char('}')) {
|
|
return content;
|
|
}
|
|
},
|
|
|
|
blockRuleset: function() {
|
|
let block = this.block();
|
|
if (block) {
|
|
return new tree.Ruleset(null, block);
|
|
}
|
|
},
|
|
|
|
detachedRuleset: function() {
|
|
let argInfo;
|
|
let params;
|
|
let variadic;
|
|
|
|
parserInput.save();
|
|
if (parserInput.$re(/^[.#]\(/)) {
|
|
/**
|
|
* DR args currently only implemented for each() function, and not
|
|
* yet settable as `@dr: #(@arg) {}`
|
|
* This should be done when DRs are merged with mixins.
|
|
* See: https://github.com/less/less-meta/issues/16
|
|
*/
|
|
argInfo = this.mixin.args(false);
|
|
params = argInfo.args;
|
|
variadic = argInfo.variadic;
|
|
if (!parserInput.$char(')')) {
|
|
parserInput.restore();
|
|
return;
|
|
}
|
|
}
|
|
const blockRuleset = this.blockRuleset();
|
|
if (blockRuleset) {
|
|
parserInput.forget();
|
|
if (params) {
|
|
return new tree.mixin.Definition(null, params, blockRuleset, null, variadic);
|
|
}
|
|
return new tree.DetachedRuleset(blockRuleset);
|
|
}
|
|
parserInput.restore();
|
|
},
|
|
|
|
//
|
|
// div, .class, body > p {...}
|
|
//
|
|
ruleset: function () {
|
|
let selectors;
|
|
let rules;
|
|
let debugInfo;
|
|
|
|
parserInput.save();
|
|
|
|
if (context.dumpLineNumbers) {
|
|
debugInfo = getDebugInfo(parserInput.i);
|
|
}
|
|
|
|
selectors = this.selectors();
|
|
|
|
if (selectors && (rules = this.block())) {
|
|
parserInput.forget();
|
|
const ruleset = new(tree.Ruleset)(selectors, rules, context.strictImports);
|
|
if (context.dumpLineNumbers) {
|
|
ruleset.debugInfo = debugInfo;
|
|
}
|
|
return ruleset;
|
|
} else {
|
|
parserInput.restore();
|
|
}
|
|
},
|
|
declaration: function () {
|
|
let name;
|
|
let value;
|
|
const index = parserInput.i;
|
|
let hasDR;
|
|
const c = parserInput.currentChar();
|
|
let important;
|
|
let merge;
|
|
let isVariable;
|
|
|
|
if (c === '.' || c === '#' || c === '&' || c === ':') { return; }
|
|
|
|
parserInput.save();
|
|
|
|
name = this.variable() || this.ruleProperty();
|
|
if (name) {
|
|
isVariable = typeof name === 'string';
|
|
|
|
if (isVariable) {
|
|
value = this.detachedRuleset();
|
|
if (value) {
|
|
hasDR = true;
|
|
}
|
|
}
|
|
|
|
parserInput.commentStore.length = 0;
|
|
if (!value) {
|
|
// a name returned by this.ruleProperty() is always an array of the form:
|
|
// [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"]
|
|
// where each item is a tree.Keyword or tree.Variable
|
|
merge = !isVariable && name.length > 1 && name.pop().value;
|
|
|
|
// Custom property values get permissive parsing
|
|
if (name[0].value && name[0].value.slice(0, 2) === '--') {
|
|
if (parserInput.$char(';')) {
|
|
value = new Anonymous('');
|
|
} else {
|
|
value = this.permissiveValue(/[;}]/, true);
|
|
}
|
|
}
|
|
// Try to store values as anonymous
|
|
// If we need the value later we'll re-parse it in ruleset.parseValue
|
|
else {
|
|
value = this.anonymousValue();
|
|
}
|
|
if (value) {
|
|
parserInput.forget();
|
|
// anonymous values absorb the end ';' which is required for them to work
|
|
return new(tree.Declaration)(name, value, false, merge, index + currentIndex, fileInfo);
|
|
}
|
|
|
|
if (!value) {
|
|
value = this.value();
|
|
}
|
|
|
|
if (value) {
|
|
important = this.important();
|
|
} else if (isVariable) {
|
|
/**
|
|
* As a last resort, try permissiveValue
|
|
*
|
|
* @todo - This has created some knock-on problems of not
|
|
* flagging incorrect syntax or detecting user intent.
|
|
*/
|
|
value = this.permissiveValue();
|
|
}
|
|
}
|
|
|
|
if (value && (this.end() || hasDR)) {
|
|
parserInput.forget();
|
|
return new(tree.Declaration)(name, value, important, merge, index + currentIndex, fileInfo);
|
|
}
|
|
else {
|
|
parserInput.restore();
|
|
}
|
|
} else {
|
|
parserInput.restore();
|
|
}
|
|
},
|
|
anonymousValue: function () {
|
|
const index = parserInput.i;
|
|
const match = parserInput.$re(/^([^.#@$+/'"*`(;{}-]*);/);
|
|
if (match) {
|
|
return new(tree.Anonymous)(match[1], index + currentIndex);
|
|
}
|
|
},
|
|
/**
|
|
* Used for custom properties, at-rules, and variables (as fallback)
|
|
* Parses almost anything inside of {} [] () "" blocks
|
|
* until it reaches outer-most tokens.
|
|
*
|
|
* First, it will try to parse comments and entities to reach
|
|
* the end. This is mostly like the Expression parser except no
|
|
* math is allowed.
|
|
*
|
|
* @param {RexExp} untilTokens - Characters to stop parsing at
|
|
*/
|
|
permissiveValue: function (untilTokens) {
|
|
let i;
|
|
let e;
|
|
let done;
|
|
let value;
|
|
const tok = untilTokens || ';';
|
|
const index = parserInput.i;
|
|
const result = [];
|
|
|
|
function testCurrentChar() {
|
|
const char = parserInput.currentChar();
|
|
if (typeof tok === 'string') {
|
|
return char === tok;
|
|
} else {
|
|
return tok.test(char);
|
|
}
|
|
}
|
|
if (testCurrentChar()) {
|
|
return;
|
|
}
|
|
value = [];
|
|
do {
|
|
e = this.comment();
|
|
if (e) {
|
|
value.push(e);
|
|
continue;
|
|
}
|
|
e = this.entity();
|
|
if (e) {
|
|
value.push(e);
|
|
}
|
|
if (parserInput.peek(',')) {
|
|
value.push(new (tree.Anonymous)(',', parserInput.i));
|
|
parserInput.$char(',');
|
|
}
|
|
} while (e);
|
|
|
|
done = testCurrentChar();
|
|
|
|
if (value.length > 0) {
|
|
value = new(tree.Expression)(value);
|
|
if (done) {
|
|
return value;
|
|
}
|
|
else {
|
|
result.push(value);
|
|
}
|
|
// Preserve space before $parseUntil as it will not
|
|
if (parserInput.prevChar() === ' ') {
|
|
result.push(new tree.Anonymous(' ', index));
|
|
}
|
|
}
|
|
parserInput.save();
|
|
|
|
value = parserInput.$parseUntil(tok);
|
|
|
|
if (value) {
|
|
if (typeof value === 'string') {
|
|
error(`Expected '${value}'`, 'Parse');
|
|
}
|
|
if (value.length === 1 && value[0] === ' ') {
|
|
parserInput.forget();
|
|
return new tree.Anonymous('', index);
|
|
}
|
|
/** @type {string} */
|
|
let item;
|
|
for (i = 0; i < value.length; i++) {
|
|
item = value[i];
|
|
if (Array.isArray(item)) {
|
|
// Treat actual quotes as normal quoted values
|
|
result.push(new tree.Quoted(item[0], item[1], true, index, fileInfo));
|
|
}
|
|
else {
|
|
if (i === value.length - 1) {
|
|
item = item.trim();
|
|
}
|
|
// Treat like quoted values, but replace vars like unquoted expressions
|
|
const quote = new tree.Quoted('\'', item, true, index, fileInfo);
|
|
const variableRegex = /@([\w-]+)/g;
|
|
const propRegex = /\$([\w-]+)/g;
|
|
if (variableRegex.test(item)) {
|
|
warn('@[ident] in unknown values will not be evaluated as variables in the future. Use @{[ident]}', index, 'DEPRECATED', 'variable-in-unknown-value');
|
|
}
|
|
if (propRegex.test(item)) {
|
|
warn('$[ident] in unknown values will not be evaluated as property references in the future. Use ${[ident]}', index, 'DEPRECATED', 'property-in-unknown-value');
|
|
}
|
|
quote.variableRegex = /@([\w-]+)|@{([\w-]+)}/g;
|
|
quote.propRegex = /\$([\w-]+)|\${([\w-]+)}/g;
|
|
result.push(quote);
|
|
}
|
|
}
|
|
parserInput.forget();
|
|
return new tree.Expression(result, true);
|
|
}
|
|
parserInput.restore();
|
|
},
|
|
|
|
//
|
|
// An @import atrule
|
|
//
|
|
// @import "lib";
|
|
//
|
|
// Depending on our environment, importing is done differently:
|
|
// In the browser, it's an XHR request, in Node, it would be a
|
|
// file-system operation. The function used for importing is
|
|
// stored in `import`, which we pass to the Import constructor.
|
|
//
|
|
'import': function () {
|
|
let path;
|
|
let features;
|
|
const index = parserInput.i;
|
|
|
|
const dir = parserInput.$re(/^@import\s+/);
|
|
|
|
if (dir) {
|
|
const options = (dir ? this.importOptions() : null) || {};
|
|
|
|
if ((path = this.entities.quoted() || this.entities.url())) {
|
|
features = this.mediaFeatures({});
|
|
|
|
if (!parserInput.$char(';')) {
|
|
parserInput.i = index;
|
|
error('missing semi-colon or unrecognised media features on import');
|
|
}
|
|
features = features && new(tree.Value)(features);
|
|
return new(tree.Import)(path, features, options, index + currentIndex, fileInfo);
|
|
}
|
|
else {
|
|
parserInput.i = index;
|
|
error('malformed import statement');
|
|
}
|
|
}
|
|
},
|
|
|
|
importOptions: function() {
|
|
let o;
|
|
const options = {};
|
|
let optionName;
|
|
let value;
|
|
|
|
// list of options, surrounded by parens
|
|
if (!parserInput.$char('(')) { return null; }
|
|
do {
|
|
o = this.importOption();
|
|
if (o) {
|
|
optionName = o;
|
|
value = true;
|
|
switch (optionName) {
|
|
case 'css':
|
|
optionName = 'less';
|
|
value = false;
|
|
break;
|
|
case 'once':
|
|
optionName = 'multiple';
|
|
value = false;
|
|
break;
|
|
}
|
|
options[optionName] = value;
|
|
if (!parserInput.$char(',')) { break; }
|
|
}
|
|
} while (o);
|
|
expectChar(')');
|
|
return options;
|
|
},
|
|
|
|
importOption: function() {
|
|
const opt = parserInput.$re(/^(less|css|multiple|once|inline|reference|optional)/);
|
|
if (opt) {
|
|
return opt[1];
|
|
}
|
|
},
|
|
|
|
mediaFeature: function (syntaxOptions) {
|
|
const entities = this.entities;
|
|
const nodes = [];
|
|
let e;
|
|
let p;
|
|
let rangeP;
|
|
let spacing = false;
|
|
parserInput.save();
|
|
do {
|
|
parserInput.save();
|
|
if (parserInput.$re(/^[0-9a-z-]*\s+\(/)) {
|
|
spacing = true;
|
|
}
|
|
parserInput.restore();
|
|
|
|
e = entities.declarationCall.bind(this)() || entities.keyword() || entities.variable() || entities.mixinLookup();
|
|
if (e) {
|
|
nodes.push(e);
|
|
if (e.type === 'Variable' ||
|
|
(e.type === 'Keyword' && /^(and|or|not|only)$/i.test(e.value))) {
|
|
spacing = true;
|
|
}
|
|
} else if (parserInput.$char('(')) {
|
|
p = this.property();
|
|
parserInput.save();
|
|
if (!p && syntaxOptions.queryInParens && parserInput.$re(/^[0-9a-z-]*\s*([<>]=|<=|>=|[<>]|=)/)) {
|
|
parserInput.restore();
|
|
p = this.condition();
|
|
|
|
parserInput.save();
|
|
rangeP = this.atomicCondition(null, p.rvalue);
|
|
if (!rangeP) {
|
|
parserInput.restore();
|
|
}
|
|
} else {
|
|
parserInput.restore();
|
|
e = this.value();
|
|
}
|
|
if (parserInput.$char(')')) {
|
|
if (p && !e) {
|
|
nodes.push(new (tree.Paren)(new (tree.QueryInParens)(p.op, p.lvalue, p.rvalue, rangeP ? rangeP.op : null, rangeP ? rangeP.rvalue : null, p._index)));
|
|
e = p;
|
|
} else if (p && e) {
|
|
nodes.push(new (tree.Paren)(new (tree.Declaration)(p, e, null, null, parserInput.i + currentIndex, fileInfo, true)));
|
|
if (!spacing) {
|
|
nodes[nodes.length - 1].noSpacing = true;
|
|
}
|
|
spacing = false;
|
|
} else if (e) {
|
|
nodes.push(new(tree.Paren)(e));
|
|
spacing = false;
|
|
} else {
|
|
error('badly formed media feature definition');
|
|
}
|
|
} else {
|
|
error('Missing closing \')\'', 'Parse');
|
|
}
|
|
}
|
|
} while (e);
|
|
|
|
parserInput.forget();
|
|
if (nodes.length > 0) {
|
|
return new(tree.Expression)(nodes);
|
|
}
|
|
},
|
|
|
|
mediaFeatures: function (syntaxOptions) {
|
|
const entities = this.entities;
|
|
const features = [];
|
|
let e;
|
|
do {
|
|
e = this.mediaFeature(syntaxOptions);
|
|
if (e) {
|
|
features.push(e);
|
|
if (!parserInput.$char(',')) { break; }
|
|
else if (!features[features.length - 1].noSpacing) {
|
|
features[features.length - 1].noSpacing = false;
|
|
}
|
|
} else {
|
|
e = entities.variable() || entities.mixinLookup();
|
|
if (e) {
|
|
features.push(e);
|
|
if (!parserInput.$char(',')) { break; }
|
|
else if (!features[features.length - 1].noSpacing) {
|
|
features[features.length - 1].noSpacing = false;
|
|
}
|
|
}
|
|
}
|
|
} while (e);
|
|
|
|
return features.length > 0 ? features : null;
|
|
},
|
|
|
|
prepareAndGetNestableAtRule: function (treeType, index, debugInfo, syntaxOptions) {
|
|
const features = this.mediaFeatures(syntaxOptions);
|
|
|
|
const rules = this.block();
|
|
|
|
if (!rules) {
|
|
error('media definitions require block statements after any features');
|
|
}
|
|
|
|
parserInput.forget();
|
|
|
|
const atRule = new (treeType)(rules, features, index + currentIndex, fileInfo);
|
|
if (context.dumpLineNumbers) {
|
|
atRule.debugInfo = debugInfo;
|
|
}
|
|
|
|
return atRule;
|
|
},
|
|
|
|
nestableAtRule: function () {
|
|
let debugInfo;
|
|
const index = parserInput.i;
|
|
|
|
if (context.dumpLineNumbers) {
|
|
debugInfo = getDebugInfo(index);
|
|
}
|
|
parserInput.save();
|
|
|
|
if (parserInput.$peekChar('@')) {
|
|
if (parserInput.$str('@media')) {
|
|
return this.prepareAndGetNestableAtRule(tree.Media, index, debugInfo, MediaSyntaxOptions);
|
|
}
|
|
|
|
if (parserInput.$str('@container')) {
|
|
return this.prepareAndGetNestableAtRule(tree.Container, index, debugInfo, ContainerSyntaxOptions);
|
|
}
|
|
}
|
|
|
|
parserInput.restore();
|
|
},
|
|
|
|
//
|
|
|
|
// A @plugin directive, used to import plugins dynamically.
|
|
//
|
|
// @plugin (args) "lib";
|
|
//
|
|
plugin: function () {
|
|
let path;
|
|
let args;
|
|
let options;
|
|
const index = parserInput.i;
|
|
const dir = parserInput.$re(/^@plugin\s+/);
|
|
|
|
if (dir) {
|
|
warn('The @plugin directive is deprecated and will be replaced in Less 5.x. Use --plugin CLI option or the programmatic plugin API instead.', index, 'DEPRECATED', 'at-plugin');
|
|
args = this.pluginArgs();
|
|
|
|
if (args) {
|
|
options = {
|
|
pluginArgs: args,
|
|
isPlugin: true
|
|
};
|
|
}
|
|
else {
|
|
options = { isPlugin: true };
|
|
}
|
|
|
|
if ((path = this.entities.quoted() || this.entities.url())) {
|
|
|
|
if (!parserInput.$char(';')) {
|
|
parserInput.i = index;
|
|
error('missing semi-colon on @plugin');
|
|
}
|
|
return new(tree.Import)(path, null, options, index + currentIndex, fileInfo);
|
|
}
|
|
else {
|
|
parserInput.i = index;
|
|
error('malformed @plugin statement');
|
|
}
|
|
}
|
|
},
|
|
|
|
pluginArgs: function() {
|
|
// list of options, surrounded by parens
|
|
parserInput.save();
|
|
if (!parserInput.$char('(')) {
|
|
parserInput.restore();
|
|
return null;
|
|
}
|
|
const args = parserInput.$re(/^\s*([^);]+)\)\s*/);
|
|
if (args[1]) {
|
|
parserInput.forget();
|
|
return args[1].trim();
|
|
}
|
|
else {
|
|
parserInput.restore();
|
|
return null;
|
|
}
|
|
},
|
|
atruleUnknown: function (value, name, hasBlock) {
|
|
value = this.permissiveValue(/^[{;]/);
|
|
hasBlock = (parserInput.currentChar() === '{');
|
|
if (!value) {
|
|
if (!hasBlock && parserInput.currentChar() !== ';') {
|
|
error(''.concat(name, ' rule is missing block or ending semi-colon'));
|
|
}
|
|
}
|
|
else if (!value.value) {
|
|
value = null;
|
|
}
|
|
return [value, hasBlock];
|
|
},
|
|
atruleBlock: function (rules, value, isRooted, isKeywordList) {
|
|
rules = this.blockRuleset();
|
|
parserInput.save();
|
|
if (!rules && !isRooted) {
|
|
value = this.entity();
|
|
rules = this.blockRuleset();
|
|
}
|
|
if (!rules && !isRooted) {
|
|
parserInput.restore();
|
|
var e = [];
|
|
value = this.entity();
|
|
while (parserInput.$char(',')) {
|
|
e.push(value);
|
|
value = this.entity();
|
|
}
|
|
if (value && e.length > 0) {
|
|
e.push(value);
|
|
value = e;
|
|
isKeywordList = true;
|
|
}
|
|
else {
|
|
rules = this.blockRuleset();
|
|
}
|
|
}
|
|
else {
|
|
parserInput.forget();
|
|
}
|
|
|
|
return [rules, value, isKeywordList];
|
|
},
|
|
//
|
|
// A CSS AtRule
|
|
//
|
|
// @charset "utf-8";
|
|
//
|
|
atrule: function () {
|
|
const index = parserInput.i;
|
|
let name;
|
|
let value;
|
|
let rules;
|
|
let nonVendorSpecificName;
|
|
let hasIdentifier;
|
|
let hasExpression;
|
|
let hasUnknown;
|
|
let hasBlock = true;
|
|
let isRooted = true;
|
|
let isKeywordList = false;
|
|
|
|
if (parserInput.currentChar() !== '@') { return; }
|
|
|
|
value = this['import']() || this.plugin() || this.nestableAtRule();
|
|
if (value) {
|
|
return value;
|
|
}
|
|
|
|
parserInput.save();
|
|
|
|
name = parserInput.$re(/^@[a-z-]+/);
|
|
|
|
if (!name) { return; }
|
|
|
|
nonVendorSpecificName = name;
|
|
if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) {
|
|
nonVendorSpecificName = `@${name.slice(name.indexOf('-', 2) + 1)}`;
|
|
}
|
|
|
|
switch (nonVendorSpecificName) {
|
|
case '@charset':
|
|
hasIdentifier = true;
|
|
hasBlock = false;
|
|
break;
|
|
case '@namespace':
|
|
hasExpression = true;
|
|
hasBlock = false;
|
|
break;
|
|
case '@keyframes':
|
|
case '@counter-style':
|
|
hasIdentifier = true;
|
|
break;
|
|
case '@document':
|
|
case '@supports':
|
|
hasUnknown = true;
|
|
isRooted = false;
|
|
break;
|
|
case '@starting-style':
|
|
isRooted = false;
|
|
break;
|
|
case '@layer':
|
|
isRooted = false;
|
|
break;
|
|
default:
|
|
hasUnknown = true;
|
|
break;
|
|
}
|
|
|
|
parserInput.commentStore.length = 0;
|
|
|
|
if (hasIdentifier) {
|
|
value = this.entity();
|
|
if (!value) {
|
|
error(`expected ${name} identifier`);
|
|
}
|
|
} else if (hasExpression) {
|
|
value = this.expression();
|
|
if (!value) {
|
|
error(`expected ${name} expression`);
|
|
}
|
|
} else if (hasUnknown) {
|
|
const unknownPackage = this.atruleUnknown(value, name, hasBlock);
|
|
value = unknownPackage[0];
|
|
hasBlock = unknownPackage[1];
|
|
}
|
|
|
|
if (hasBlock) {
|
|
let blockPackage = this.atruleBlock(rules, value, isRooted, isKeywordList);
|
|
rules = blockPackage[0];
|
|
value = blockPackage[1];
|
|
isKeywordList = blockPackage[2];
|
|
|
|
if (!rules && !hasUnknown) {
|
|
parserInput.restore();
|
|
name = parserInput.$re(/^@[a-z-]+/);
|
|
const unknownPackage = this.atruleUnknown(value, name, hasBlock);
|
|
value = unknownPackage[0];
|
|
hasBlock = unknownPackage[1];
|
|
if (hasBlock) {
|
|
blockPackage = this.atruleBlock(rules, value, isRooted, isKeywordList);
|
|
rules = blockPackage[0];
|
|
value = blockPackage[1];
|
|
isKeywordList = blockPackage[2];
|
|
}
|
|
}
|
|
}
|
|
|
|
if (rules || isKeywordList || (!hasBlock && value && parserInput.$char(';'))) {
|
|
parserInput.forget();
|
|
return new(tree.AtRule)(name, value, rules, index + currentIndex, fileInfo,
|
|
context.dumpLineNumbers ? getDebugInfo(index) : null,
|
|
isRooted
|
|
);
|
|
}
|
|
|
|
parserInput.restore('at-rule options not recognised');
|
|
},
|
|
|
|
//
|
|
// A Value is a comma-delimited list of Expressions
|
|
//
|
|
// font-family: Baskerville, Georgia, serif;
|
|
//
|
|
// In a Rule, a Value represents everything after the `:`,
|
|
// and before the `;`.
|
|
//
|
|
value: function () {
|
|
let e;
|
|
const expressions = [];
|
|
const index = parserInput.i;
|
|
|
|
do {
|
|
e = this.expression();
|
|
if (e) {
|
|
expressions.push(e);
|
|
if (!parserInput.$char(',')) { break; }
|
|
}
|
|
} while (e);
|
|
|
|
if (expressions.length > 0) {
|
|
return new(tree.Value)(expressions, index + currentIndex);
|
|
}
|
|
},
|
|
important: function () {
|
|
if (parserInput.currentChar() === '!') {
|
|
return parserInput.$re(/^! *important/);
|
|
}
|
|
},
|
|
sub: function () {
|
|
let a;
|
|
let e;
|
|
|
|
parserInput.save();
|
|
if (parserInput.$char('(')) {
|
|
a = this.addition();
|
|
if (a && parserInput.$char(')')) {
|
|
parserInput.forget();
|
|
e = new(tree.Expression)([a]);
|
|
e.parens = true;
|
|
return e;
|
|
}
|
|
parserInput.restore('Expected \')\'');
|
|
return;
|
|
}
|
|
parserInput.restore();
|
|
},
|
|
colorOperand: function () {
|
|
parserInput.save();
|
|
|
|
// hsl or rgb or lch operand
|
|
const match = parserInput.$re(/^[lchrgbs]\s+/);
|
|
if (match) {
|
|
parserInput.forget();
|
|
return new tree.Keyword(match[0]);
|
|
}
|
|
|
|
parserInput.restore();
|
|
},
|
|
multiplication: function () {
|
|
let m;
|
|
let a;
|
|
let op;
|
|
let operation;
|
|
let isSpaced;
|
|
m = this.operand();
|
|
if (m) {
|
|
isSpaced = parserInput.isWhitespace(-1);
|
|
while (true) {
|
|
if (parserInput.peek(/^\/[*/]/)) {
|
|
break;
|
|
}
|
|
|
|
parserInput.save();
|
|
|
|
op = parserInput.$char('/') || parserInput.$char('*');
|
|
if (!op) {
|
|
let index = parserInput.i;
|
|
op = parserInput.$str('./');
|
|
if (op) {
|
|
warn('./ operator is deprecated', index, 'DEPRECATED', 'dot-slash-operator');
|
|
}
|
|
}
|
|
|
|
if (!op) { parserInput.forget(); break; }
|
|
|
|
a = this.operand();
|
|
|
|
if (!a) { parserInput.restore(); break; }
|
|
parserInput.forget();
|
|
|
|
m.parensInOp = true;
|
|
a.parensInOp = true;
|
|
operation = new(tree.Operation)(op, [operation || m, a], isSpaced);
|
|
isSpaced = parserInput.isWhitespace(-1);
|
|
}
|
|
return operation || m;
|
|
}
|
|
},
|
|
addition: function () {
|
|
let m;
|
|
let a;
|
|
let op;
|
|
let operation;
|
|
let isSpaced;
|
|
m = this.multiplication();
|
|
if (m) {
|
|
isSpaced = parserInput.isWhitespace(-1);
|
|
while (true) {
|
|
op = parserInput.$re(/^[-+]\s+/) || (!isSpaced && (parserInput.$char('+') || parserInput.$char('-')));
|
|
if (!op) {
|
|
break;
|
|
}
|
|
a = this.multiplication();
|
|
if (!a) {
|
|
break;
|
|
}
|
|
|
|
m.parensInOp = true;
|
|
a.parensInOp = true;
|
|
operation = new(tree.Operation)(op, [operation || m, a], isSpaced);
|
|
isSpaced = parserInput.isWhitespace(-1);
|
|
}
|
|
return operation || m;
|
|
}
|
|
},
|
|
conditions: function () {
|
|
let a;
|
|
let b;
|
|
const index = parserInput.i;
|
|
let condition;
|
|
|
|
a = this.condition(true);
|
|
if (a) {
|
|
while (true) {
|
|
if (!parserInput.peek(/^,\s*(not\s*)?\(/) || !parserInput.$char(',')) {
|
|
break;
|
|
}
|
|
b = this.condition(true);
|
|
if (!b) {
|
|
break;
|
|
}
|
|
condition = new(tree.Condition)('or', condition || a, b, index + currentIndex);
|
|
}
|
|
return condition || a;
|
|
}
|
|
},
|
|
condition: function (needsParens) {
|
|
let result;
|
|
let logical;
|
|
let next;
|
|
function or() {
|
|
return parserInput.$str('or');
|
|
}
|
|
|
|
result = this.conditionAnd(needsParens);
|
|
if (!result) {
|
|
return ;
|
|
}
|
|
logical = or();
|
|
if (logical) {
|
|
next = this.condition(needsParens);
|
|
if (next) {
|
|
result = new(tree.Condition)(logical, result, next);
|
|
} else {
|
|
return ;
|
|
}
|
|
}
|
|
return result;
|
|
},
|
|
conditionAnd: function (needsParens) {
|
|
let result;
|
|
let logical;
|
|
let next;
|
|
const self = this;
|
|
function insideCondition() {
|
|
const cond = self.negatedCondition(needsParens) || self.parenthesisCondition(needsParens);
|
|
if (!cond && !needsParens) {
|
|
return self.atomicCondition(needsParens);
|
|
}
|
|
return cond;
|
|
}
|
|
function and() {
|
|
return parserInput.$str('and');
|
|
}
|
|
|
|
result = insideCondition();
|
|
if (!result) {
|
|
return ;
|
|
}
|
|
logical = and();
|
|
if (logical) {
|
|
next = this.conditionAnd(needsParens);
|
|
if (next) {
|
|
result = new(tree.Condition)(logical, result, next);
|
|
} else {
|
|
return ;
|
|
}
|
|
}
|
|
return result;
|
|
},
|
|
negatedCondition: function (needsParens) {
|
|
if (parserInput.$str('not')) {
|
|
const result = this.parenthesisCondition(needsParens);
|
|
if (result) {
|
|
result.negate = !result.negate;
|
|
}
|
|
return result;
|
|
}
|
|
},
|
|
parenthesisCondition: function (needsParens) {
|
|
function tryConditionFollowedByParenthesis(me) {
|
|
let body;
|
|
parserInput.save();
|
|
body = me.condition(needsParens);
|
|
if (!body) {
|
|
parserInput.restore();
|
|
return ;
|
|
}
|
|
if (!parserInput.$char(')')) {
|
|
parserInput.restore();
|
|
return ;
|
|
}
|
|
parserInput.forget();
|
|
return body;
|
|
}
|
|
|
|
let body;
|
|
parserInput.save();
|
|
if (!parserInput.$str('(')) {
|
|
parserInput.restore();
|
|
return ;
|
|
}
|
|
body = tryConditionFollowedByParenthesis(this);
|
|
if (body) {
|
|
parserInput.forget();
|
|
return body;
|
|
}
|
|
|
|
body = this.atomicCondition(needsParens);
|
|
if (!body) {
|
|
parserInput.restore();
|
|
return ;
|
|
}
|
|
if (!parserInput.$char(')')) {
|
|
parserInput.restore(`expected ')' got '${parserInput.currentChar()}'`);
|
|
return ;
|
|
}
|
|
parserInput.forget();
|
|
return body;
|
|
},
|
|
atomicCondition: function (needsParens, preparsedCond) {
|
|
const entities = this.entities;
|
|
const index = parserInput.i;
|
|
let a;
|
|
let b;
|
|
let c;
|
|
let op;
|
|
|
|
const cond = (function() {
|
|
return this.addition() || entities.keyword() || entities.quoted() || entities.mixinLookup();
|
|
}).bind(this);
|
|
|
|
if (preparsedCond) {
|
|
a = preparsedCond;
|
|
} else {
|
|
a = cond();
|
|
}
|
|
|
|
if (a) {
|
|
if (parserInput.$char('>')) {
|
|
if (parserInput.$char('=')) {
|
|
op = '>=';
|
|
} else {
|
|
op = '>';
|
|
}
|
|
} else
|
|
if (parserInput.$char('<')) {
|
|
if (parserInput.$char('=')) {
|
|
op = '<=';
|
|
} else {
|
|
op = '<';
|
|
}
|
|
} else
|
|
if (parserInput.$char('=')) {
|
|
if (parserInput.$char('>')) {
|
|
op = '=>';
|
|
} else if (parserInput.$char('<')) {
|
|
op = '=<';
|
|
} else {
|
|
op = '=';
|
|
}
|
|
}
|
|
if (op) {
|
|
b = cond();
|
|
if (b) {
|
|
c = new(tree.Condition)(op, a, b, index + currentIndex, false);
|
|
} else {
|
|
error('expected expression');
|
|
}
|
|
} else if (!preparsedCond) {
|
|
c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index + currentIndex, false);
|
|
}
|
|
return c;
|
|
}
|
|
},
|
|
|
|
//
|
|
// An operand is anything that can be part of an operation,
|
|
// such as a Color, or a Variable
|
|
//
|
|
operand: function () {
|
|
const entities = this.entities;
|
|
let negate;
|
|
|
|
if (parserInput.peek(/^-[@$(]/)) {
|
|
negate = parserInput.$char('-');
|
|
}
|
|
|
|
let o = this.sub() || entities.dimension() ||
|
|
entities.color() || entities.variable() ||
|
|
entities.property() || entities.call() ||
|
|
entities.quoted(true) || entities.colorKeyword() ||
|
|
this.colorOperand() || entities.mixinLookup();
|
|
|
|
if (negate) {
|
|
o.parensInOp = true;
|
|
o = new(tree.Negative)(o);
|
|
}
|
|
|
|
return o;
|
|
},
|
|
|
|
//
|
|
// Expressions either represent mathematical operations,
|
|
// or white-space delimited Entities.
|
|
//
|
|
// 1px solid black
|
|
// @var * 2
|
|
//
|
|
expression: function () {
|
|
const entities = [];
|
|
let e;
|
|
let delim;
|
|
const index = parserInput.i;
|
|
|
|
do {
|
|
e = this.comment();
|
|
if (e && !e.isLineComment) {
|
|
entities.push(e);
|
|
continue;
|
|
}
|
|
e = this.addition() || this.entity();
|
|
|
|
if (e instanceof tree.Comment) {
|
|
e = null;
|
|
}
|
|
|
|
if (e) {
|
|
entities.push(e);
|
|
// operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here
|
|
if (!parserInput.peek(/^\/[/*]/)) {
|
|
delim = parserInput.$char('/');
|
|
if (delim) {
|
|
entities.push(new(tree.Anonymous)(delim, index + currentIndex));
|
|
}
|
|
}
|
|
}
|
|
} while (e);
|
|
if (entities.length > 0) {
|
|
return new(tree.Expression)(entities);
|
|
}
|
|
},
|
|
property: function () {
|
|
const name = parserInput.$re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/);
|
|
if (name) {
|
|
return name[1];
|
|
}
|
|
},
|
|
ruleProperty: function () {
|
|
let name = [];
|
|
const index = [];
|
|
let s;
|
|
let k;
|
|
|
|
parserInput.save();
|
|
|
|
const simpleProperty = parserInput.$re(/^([_a-zA-Z0-9-]+)\s*:/);
|
|
if (simpleProperty) {
|
|
name = [new(tree.Keyword)(simpleProperty[1])];
|
|
parserInput.forget();
|
|
return name;
|
|
}
|
|
|
|
function match(re) {
|
|
const i = parserInput.i;
|
|
const chunk = parserInput.$re(re);
|
|
if (chunk) {
|
|
index.push(i);
|
|
return name.push(chunk[1]);
|
|
}
|
|
}
|
|
|
|
match(/^(\*?)/);
|
|
while (true) {
|
|
if (!match(/^((?:[\w-]+)|(?:[@$]\{[\w-]+\}))/)) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ((name.length > 1) && match(/^((?:\+_|\+)?)\s*:/)) {
|
|
parserInput.forget();
|
|
|
|
// at last, we have the complete match now. move forward,
|
|
// convert name particles to tree objects and return:
|
|
if (name[0] === '') {
|
|
name.shift();
|
|
index.shift();
|
|
}
|
|
for (k = 0; k < name.length; k++) {
|
|
s = name[k];
|
|
name[k] = (s.charAt(0) !== '@' && s.charAt(0) !== '$') ?
|
|
new(tree.Keyword)(s) :
|
|
(s.charAt(0) === '@' ?
|
|
new(tree.Variable)(`@${s.slice(2, -1)}`, index[k] + currentIndex, fileInfo) :
|
|
new(tree.Property)(`$${s.slice(2, -1)}`, index[k] + currentIndex, fileInfo));
|
|
}
|
|
return name;
|
|
}
|
|
parserInput.restore();
|
|
}
|
|
}
|
|
};
|
|
};
|
|
Parser.serializeVars = vars => {
|
|
let s = '';
|
|
|
|
for (const name in vars) {
|
|
if (Object.hasOwnProperty.call(vars, name)) {
|
|
const value = vars[name];
|
|
s += `${((name[0] === '@') ? '' : '@') + name}: ${value}${(String(value).slice(-1) === ';') ? '' : ';'}`;
|
|
}
|
|
}
|
|
|
|
return s;
|
|
};
|
|
|
|
// @ts-check
|
|
|
|
/** @import { EvalContext, CSSOutput, FileInfo, VisibilityInfo, TreeVisitor } from './node.js' */
|
|
|
|
class Selector extends Node {
|
|
get type() { return 'Selector'; }
|
|
|
|
/**
|
|
* @param {(Element | Selector)[] | string} [elements]
|
|
* @param {Node[] | null} [extendList]
|
|
* @param {Node | null} [condition]
|
|
* @param {number} [index]
|
|
* @param {FileInfo} [currentFileInfo]
|
|
* @param {VisibilityInfo} [visibilityInfo]
|
|
*/
|
|
constructor(elements, extendList, condition, index, currentFileInfo, visibilityInfo) {
|
|
super();
|
|
/** @type {Node[] | null | undefined} */
|
|
this.extendList = extendList;
|
|
/** @type {Node | null | undefined} */
|
|
this.condition = condition;
|
|
/** @type {boolean | Node} */
|
|
this.evaldCondition = !condition;
|
|
this._index = index;
|
|
this._fileInfo = currentFileInfo;
|
|
/** @type {Element[]} */
|
|
this.elements = this.getElements(elements);
|
|
/** @type {string[] | undefined} */
|
|
this.mixinElements_ = undefined;
|
|
/** @type {boolean | undefined} */
|
|
this.mediaEmpty = undefined;
|
|
this.copyVisibilityInfo(visibilityInfo);
|
|
this.setParent(this.elements, this);
|
|
}
|
|
|
|
/** @param {TreeVisitor} visitor */
|
|
accept(visitor) {
|
|
if (this.elements) {
|
|
this.elements = /** @type {Element[]} */ (visitor.visitArray(this.elements));
|
|
}
|
|
if (this.extendList) {
|
|
this.extendList = visitor.visitArray(this.extendList);
|
|
}
|
|
if (this.condition) {
|
|
this.condition = visitor.visit(this.condition);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {Element[]} elements
|
|
* @param {Node[] | null} [extendList]
|
|
* @param {boolean | Node} [evaldCondition]
|
|
*/
|
|
createDerived(elements, extendList, evaldCondition) {
|
|
elements = this.getElements(elements);
|
|
const newSelector = new Selector(elements, extendList || this.extendList,
|
|
null, this.getIndex(), this.fileInfo(), this.visibilityInfo());
|
|
newSelector.evaldCondition = (!isNullOrUndefined(evaldCondition)) ? evaldCondition : this.evaldCondition;
|
|
newSelector.mediaEmpty = this.mediaEmpty;
|
|
return newSelector;
|
|
}
|
|
|
|
/**
|
|
* @param {(Element | Selector)[] | string | null | undefined} els
|
|
* @returns {Element[]}
|
|
*/
|
|
getElements(els) {
|
|
if (!els) {
|
|
return [new Element('', '&', false, this._index, this._fileInfo)];
|
|
}
|
|
if (typeof els === 'string') {
|
|
const fileInfo = this._fileInfo;
|
|
const parse = this.parse;
|
|
new (/** @type {new (...args: unknown[]) => { parseNode: Function }} */ (/** @type {unknown} */ (Parser)))(parse.context, parse.importManager, fileInfo, this._index).parseNode(
|
|
els,
|
|
['selector'],
|
|
function(/** @type {{ index: number, message: string } | null} */ err, /** @type {Selector[]} */ result) {
|
|
if (err) {
|
|
throw new LessError({
|
|
index: err.index,
|
|
message: err.message
|
|
}, parse.imports, /** @type {string} */ (/** @type {FileInfo} */ (fileInfo).filename));
|
|
}
|
|
els = result[0].elements;
|
|
});
|
|
}
|
|
return /** @type {Element[]} */ (els);
|
|
}
|
|
|
|
createEmptySelectors() {
|
|
const el = new Element('', '&', false, this._index, this._fileInfo), sels = [new Selector([el], null, null, this._index, this._fileInfo)];
|
|
sels[0].mediaEmpty = true;
|
|
return sels;
|
|
}
|
|
|
|
/**
|
|
* @param {Selector} other
|
|
* @returns {number}
|
|
*/
|
|
match(other) {
|
|
const elements = this.elements;
|
|
const len = elements.length;
|
|
let olen;
|
|
let i;
|
|
|
|
/** @type {string[]} */
|
|
const mixinEls = other.mixinElements();
|
|
olen = mixinEls.length;
|
|
if (olen === 0 || len < olen) {
|
|
return 0;
|
|
} else {
|
|
for (i = 0; i < olen; i++) {
|
|
if (elements[i].value !== mixinEls[i]) {
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
return olen; // return number of matched elements
|
|
}
|
|
|
|
/** @returns {string[]} */
|
|
mixinElements() {
|
|
if (this.mixinElements_) {
|
|
return this.mixinElements_;
|
|
}
|
|
|
|
/** @type {string[] | null} */
|
|
let elements = this.elements.map( function(v) {
|
|
return /** @type {string} */ (v.combinator.value) + (/** @type {{ value: string }} */ (v.value).value || v.value);
|
|
}).join('').match(/[,&#*.\w-]([\w-]|(\\.))*/g);
|
|
|
|
if (elements) {
|
|
if (elements[0] === '&') {
|
|
elements.shift();
|
|
}
|
|
} else {
|
|
elements = [];
|
|
}
|
|
|
|
return (this.mixinElements_ = elements);
|
|
}
|
|
|
|
isJustParentSelector() {
|
|
return !this.mediaEmpty &&
|
|
this.elements.length === 1 &&
|
|
this.elements[0].value === '&' &&
|
|
(this.elements[0].combinator.value === ' ' || this.elements[0].combinator.value === '');
|
|
}
|
|
|
|
/** @param {EvalContext} context */
|
|
eval(context) {
|
|
const evaldCondition = this.condition && this.condition.eval(context);
|
|
let elements = this.elements;
|
|
/** @type {Node[] | null | undefined} */
|
|
let extendList = this.extendList;
|
|
|
|
if (elements) {
|
|
const evaldElements = new Array(elements.length);
|
|
for (let i = 0; i < elements.length; i++) {
|
|
evaldElements[i] = elements[i].eval(context);
|
|
}
|
|
elements = evaldElements;
|
|
}
|
|
if (extendList) {
|
|
const evaldExtends = new Array(extendList.length);
|
|
for (let i = 0; i < extendList.length; i++) {
|
|
evaldExtends[i] = extendList[i].eval(context);
|
|
}
|
|
extendList = evaldExtends;
|
|
}
|
|
|
|
return this.createDerived(elements, extendList, evaldCondition);
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
let i, element;
|
|
if ((!context || !/** @type {EvalContext & { firstSelector?: boolean }} */ (context).firstSelector) && this.elements[0].combinator.value === '') {
|
|
output.add(' ', this.fileInfo(), this.getIndex());
|
|
}
|
|
for (i = 0; i < this.elements.length; i++) {
|
|
element = this.elements[i];
|
|
element.genCSS(context, output);
|
|
}
|
|
}
|
|
|
|
getIsOutput() {
|
|
return this.evaldCondition;
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
/** @import { EvalContext, CSSOutput } from './node.js' */
|
|
|
|
class Keyword extends Node {
|
|
get type() { return 'Keyword'; }
|
|
|
|
/** @param {string} value */
|
|
constructor(value) {
|
|
super();
|
|
this.value = value;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
if (this.value === '%') { throw { type: 'Syntax', message: 'Invalid % without number' }; }
|
|
output.add(/** @type {string} */ (this.value));
|
|
}
|
|
}
|
|
|
|
Keyword.True = new Keyword('true');
|
|
Keyword.False = new Keyword('false');
|
|
|
|
// @ts-check
|
|
const MATH$1 = Math$1;
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {Node[]} name
|
|
* @returns {string}
|
|
*/
|
|
function evalName(context, name) {
|
|
let value = '';
|
|
let i;
|
|
const n = name.length;
|
|
/** @type {CSSOutput} */
|
|
const output = {add: function (s) {value += s;}, isEmpty: function() { return value === ''; }};
|
|
for (i = 0; i < n; i++) {
|
|
name[i].eval(context).genCSS(context, output);
|
|
}
|
|
return value;
|
|
}
|
|
|
|
class Declaration extends Node {
|
|
get type() { return 'Declaration'; }
|
|
|
|
/**
|
|
* @param {string | Node[]} name
|
|
* @param {Node | string | null} value
|
|
* @param {string} [important]
|
|
* @param {string} [merge]
|
|
* @param {number} [index]
|
|
* @param {FileInfo} [currentFileInfo]
|
|
* @param {boolean} [inline]
|
|
* @param {boolean} [variable]
|
|
*/
|
|
constructor(name, value, important, merge, index, currentFileInfo, inline, variable) {
|
|
super();
|
|
this.name = name;
|
|
this.value = (value instanceof Node) ? value : new Value([value ? new Anonymous(value) : null]);
|
|
this.important = important ? ` ${important.trim()}` : '';
|
|
/** @type {string | undefined} */
|
|
this.merge = merge;
|
|
this._index = index;
|
|
this._fileInfo = currentFileInfo;
|
|
/** @type {boolean} */
|
|
this.inline = inline || false;
|
|
/** @type {boolean} */
|
|
this.variable = (variable !== undefined) ? variable
|
|
: (typeof name === 'string' && name.charAt(0) === '@');
|
|
/** @type {boolean} */
|
|
this.allowRoot = true;
|
|
this.setParent(this.value, this);
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
output.add(/** @type {string} */ (this.name) + (context.compress ? ':' : ': '), this.fileInfo(), this.getIndex());
|
|
try {
|
|
/** @type {Node} */ (this.value).genCSS(context, output);
|
|
}
|
|
catch (e) {
|
|
const err = /** @type {{ index?: number, filename?: string }} */ (e);
|
|
err.index = this._index;
|
|
err.filename = this._fileInfo && this._fileInfo.filename;
|
|
throw e;
|
|
}
|
|
output.add(this.important + ((this.inline || (context.lastRule && context.compress)) ? '' : ';'), this._fileInfo, this._index);
|
|
}
|
|
|
|
/** @param {EvalContext} context */
|
|
eval(context) {
|
|
let mathBypass = false, prevMath, name = this.name, evaldValue, variable = this.variable;
|
|
if (typeof name !== 'string') {
|
|
// expand 'primitive' name directly to get
|
|
// things faster (~10% for benchmark.less):
|
|
name = (/** @type {Node[]} */ (name).length === 1) && (/** @type {Node[]} */ (name)[0] instanceof Keyword) ?
|
|
/** @type {string} */ (/** @type {Node[]} */ (name)[0].value) : evalName(context, /** @type {Node[]} */ (name));
|
|
variable = false; // never treat expanded interpolation as new variable name
|
|
}
|
|
|
|
// @todo remove when parens-division is default
|
|
if (name === 'font' && context.math === MATH$1.ALWAYS) {
|
|
mathBypass = true;
|
|
prevMath = context.math;
|
|
context.math = MATH$1.PARENS_DIVISION;
|
|
}
|
|
try {
|
|
context.importantScope.push({});
|
|
evaldValue = /** @type {Node} */ (this.value).eval(context);
|
|
|
|
if (!this.variable && evaldValue.type === 'DetachedRuleset') {
|
|
throw { message: 'Rulesets cannot be evaluated on a property.',
|
|
index: this.getIndex(), filename: this.fileInfo().filename };
|
|
}
|
|
let important = this.important;
|
|
const importantResult = context.importantScope.pop();
|
|
if (!important && importantResult && importantResult.important) {
|
|
important = importantResult.important;
|
|
}
|
|
|
|
return new Declaration(/** @type {string} */ (name),
|
|
evaldValue,
|
|
important,
|
|
this.merge,
|
|
this.getIndex(), this.fileInfo(), this.inline,
|
|
variable);
|
|
}
|
|
catch (e) {
|
|
const err = /** @type {{ index?: number, filename?: string }} */ (e);
|
|
if (typeof err.index !== 'number') {
|
|
err.index = this.getIndex();
|
|
err.filename = this.fileInfo().filename;
|
|
}
|
|
throw e;
|
|
}
|
|
finally {
|
|
if (mathBypass) {
|
|
context.math = prevMath;
|
|
}
|
|
}
|
|
}
|
|
|
|
makeImportant() {
|
|
return new Declaration(this.name,
|
|
/** @type {Node} */ (this.value),
|
|
'!important',
|
|
this.merge,
|
|
this.getIndex(), this.fileInfo(), this.inline);
|
|
}
|
|
}
|
|
|
|
const defaultFunc = {
|
|
eval: function () {
|
|
const v = this.value_;
|
|
const e = this.error_;
|
|
if (e) {
|
|
throw e;
|
|
}
|
|
if (!isNullOrUndefined(v)) {
|
|
return v ? Keyword.True : Keyword.False;
|
|
}
|
|
},
|
|
value: function (v) {
|
|
this.value_ = v;
|
|
},
|
|
error: function (e) {
|
|
this.error_ = e;
|
|
},
|
|
reset: function () {
|
|
this.value_ = this.error_ = null;
|
|
}
|
|
};
|
|
|
|
// @ts-check
|
|
|
|
/**
|
|
* @typedef {Node & {
|
|
* rules?: Node[],
|
|
* selectors?: Selector[],
|
|
* root?: boolean,
|
|
* firstRoot?: boolean,
|
|
* allowImports?: boolean,
|
|
* functionRegistry?: FunctionRegistry,
|
|
* originalRuleset?: Node,
|
|
* debugInfo?: { lineNumber: number, fileName: string },
|
|
* evalFirst?: boolean,
|
|
* isRuleset?: boolean,
|
|
* isCharset?: () => boolean,
|
|
* merge?: boolean | string,
|
|
* multiMedia?: boolean,
|
|
* parse?: { context: EvalContext, importManager: object },
|
|
* bubbleSelectors?: (selectors: Selector[]) => void
|
|
* }} RuleNode
|
|
*/
|
|
|
|
class Ruleset extends Node {
|
|
get type() { return 'Ruleset'; }
|
|
|
|
/**
|
|
* @param {Selector[] | null} selectors
|
|
* @param {Node[] | null} rules
|
|
* @param {boolean} [strictImports]
|
|
* @param {VisibilityInfo} [visibilityInfo]
|
|
*/
|
|
constructor(selectors, rules, strictImports, visibilityInfo) {
|
|
super();
|
|
/** @type {Selector[] | null} */
|
|
this.selectors = selectors;
|
|
/** @type {Node[] | null} */
|
|
this.rules = rules;
|
|
/** @type {Object<string, { rule: Node, path: Node[] }[]>} */
|
|
this._lookups = {};
|
|
/** @type {Object<string, Declaration> | null} */
|
|
this._variables = null;
|
|
/** @type {Object<string, Declaration[]> | null} */
|
|
this._properties = null;
|
|
/** @type {boolean | undefined} */
|
|
this.strictImports = strictImports;
|
|
this.copyVisibilityInfo(visibilityInfo);
|
|
this.allowRoot = true;
|
|
/** @type {boolean} */
|
|
this.isRuleset = true;
|
|
|
|
/** @type {boolean | undefined} */
|
|
this.root = undefined;
|
|
/** @type {boolean | undefined} */
|
|
this.firstRoot = undefined;
|
|
/** @type {boolean | undefined} */
|
|
this.allowImports = undefined;
|
|
/** @type {FunctionRegistry | undefined} */
|
|
this.functionRegistry = undefined;
|
|
/** @type {Node | undefined} */
|
|
this.originalRuleset = undefined;
|
|
/** @type {{ lineNumber: number, fileName: string } | undefined} */
|
|
this.debugInfo = undefined;
|
|
/** @type {Selector[][] | undefined} */
|
|
this.paths = undefined;
|
|
/** @type {Ruleset[] | null | undefined} */
|
|
this._rulesets = undefined;
|
|
/** @type {boolean | undefined} */
|
|
this.evalFirst = undefined;
|
|
this.setParent(this.selectors, this);
|
|
this.setParent(this.rules, this);
|
|
}
|
|
|
|
isRulesetLike() { return true; }
|
|
|
|
/** @param {TreeVisitor} visitor */
|
|
accept(visitor) {
|
|
if (this.paths) {
|
|
this.paths = /** @type {Selector[][]} */ (/** @type {unknown} */ (visitor.visitArray(/** @type {Node[]} */ (/** @type {unknown} */ (this.paths)), true)));
|
|
} else if (this.selectors) {
|
|
this.selectors = /** @type {Selector[]} */ (visitor.visitArray(this.selectors));
|
|
}
|
|
if (this.rules && this.rules.length) {
|
|
this.rules = visitor.visitArray(this.rules);
|
|
}
|
|
}
|
|
|
|
/** @param {EvalContext} context */
|
|
eval(context) {
|
|
/** @type {Selector[] | undefined} */
|
|
let selectors;
|
|
/** @type {number} */
|
|
let selCnt;
|
|
/** @type {Selector} */
|
|
let selector;
|
|
/** @type {number} */
|
|
let i;
|
|
/** @type {boolean | undefined} */
|
|
let hasVariable;
|
|
let hasOnePassingSelector = false;
|
|
|
|
if (this.selectors && (selCnt = this.selectors.length)) {
|
|
selectors = new Array(selCnt);
|
|
defaultFunc.error({
|
|
type: 'Syntax',
|
|
message: 'it is currently only allowed in parametric mixin guards,'
|
|
});
|
|
|
|
for (i = 0; i < selCnt; i++) {
|
|
selector = /** @type {Selector} */ (this.selectors[i].eval(context));
|
|
for (let j = 0; j < selector.elements.length; j++) {
|
|
if (selector.elements[j].isVariable) {
|
|
hasVariable = true;
|
|
break;
|
|
}
|
|
}
|
|
selectors[i] = selector;
|
|
if (selector.evaldCondition) {
|
|
hasOnePassingSelector = true;
|
|
}
|
|
}
|
|
|
|
if (hasVariable) {
|
|
const toParseSelectors = new Array(selCnt);
|
|
for (i = 0; i < selCnt; i++) {
|
|
selector = selectors[i];
|
|
toParseSelectors[i] = selector.toCSS(context);
|
|
}
|
|
const startingIndex = selectors[0].getIndex();
|
|
const selectorFileInfo = selectors[0].fileInfo();
|
|
new (/** @type {new (...args: [EvalContext, object, FileInfo, number]) => { parseNode: Function }} */ (/** @type {unknown} */ (Parser)))(context, /** @type {{ context: EvalContext, importManager: object }} */ (this.parse).importManager, selectorFileInfo, startingIndex).parseNode(
|
|
toParseSelectors.join(','),
|
|
['selectors'],
|
|
function(/** @type {Error | null} */ err, /** @type {Node[]} */ result) {
|
|
if (result) {
|
|
selectors = /** @type {Selector[]} */ (flattenArray(result));
|
|
}
|
|
});
|
|
}
|
|
|
|
defaultFunc.reset();
|
|
} else {
|
|
hasOnePassingSelector = true;
|
|
}
|
|
|
|
let rules = this.rules ? copyArray(this.rules) : null;
|
|
const ruleset = new Ruleset(selectors, rules, this.strictImports, this.visibilityInfo());
|
|
/** @type {Node} */
|
|
let rule;
|
|
/** @type {Node} */
|
|
let subRule;
|
|
|
|
ruleset.originalRuleset = this;
|
|
ruleset.root = this.root;
|
|
ruleset.firstRoot = this.firstRoot;
|
|
ruleset.allowImports = this.allowImports;
|
|
|
|
if (this.debugInfo) {
|
|
ruleset.debugInfo = this.debugInfo;
|
|
}
|
|
|
|
if (!hasOnePassingSelector) {
|
|
/** @type {Node[]} */ (rules).length = 0;
|
|
}
|
|
|
|
// push the current ruleset to the frames stack
|
|
const ctxFrames = context.frames;
|
|
|
|
// inherit a function registry from the frames stack when possible;
|
|
// otherwise from the global registry
|
|
/** @type {FunctionRegistry | undefined} */
|
|
let foundRegistry;
|
|
for (let fi = 0, fn = ctxFrames.length; fi !== fn; ++fi) {
|
|
foundRegistry = /** @type {RuleNode} */ (ctxFrames[fi]).functionRegistry;
|
|
if (foundRegistry) { break; }
|
|
}
|
|
ruleset.functionRegistry = (foundRegistry || functionRegistry).inherit();
|
|
ctxFrames.unshift(ruleset);
|
|
|
|
// currrent selectors
|
|
/** @type {Selector[][] | undefined} */
|
|
let ctxSelectors = /** @type {EvalContext & { selectors?: Selector[][] }} */ (context).selectors;
|
|
if (!ctxSelectors) {
|
|
/** @type {EvalContext & { selectors?: Selector[][] }} */ (context).selectors = ctxSelectors = [];
|
|
}
|
|
ctxSelectors.unshift(this.selectors);
|
|
|
|
// Evaluate imports
|
|
if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) {
|
|
ruleset.evalImports(context);
|
|
}
|
|
|
|
// Store the frames around mixin definitions,
|
|
// so they can be evaluated like closures when the time comes.
|
|
const rsRules = /** @type {Node[]} */ (ruleset.rules);
|
|
for (i = 0; (rule = rsRules[i]); i++) {
|
|
if (/** @type {RuleNode} */ (rule).evalFirst) {
|
|
rsRules[i] = rule.eval(context);
|
|
}
|
|
}
|
|
|
|
const mediaBlockCount = (context.mediaBlocks && context.mediaBlocks.length) || 0;
|
|
|
|
// Evaluate mixin calls.
|
|
for (i = 0; (rule = rsRules[i]); i++) {
|
|
if (rule.type === 'MixinCall') {
|
|
/* jshint loopfunc:true */
|
|
rules = /** @type {Node[]} */ (/** @type {unknown} */ (rule.eval(context))).filter(function(/** @type {Node & { variable?: boolean }} */ r) {
|
|
if ((r instanceof Declaration) && r.variable) {
|
|
// do not pollute the scope if the variable is
|
|
// already there. consider returning false here
|
|
// but we need a way to "return" variable from mixins
|
|
return !(ruleset.variable(/** @type {string} */ (r.name)));
|
|
}
|
|
return true;
|
|
});
|
|
rsRules.splice.apply(rsRules, /** @type {[number, number, ...Node[]]} */ ([i, 1].concat(rules)));
|
|
i += rules.length - 1;
|
|
ruleset.resetCache();
|
|
} else if (rule.type === 'VariableCall') {
|
|
/* jshint loopfunc:true */
|
|
rules = /** @type {Node[]} */ (/** @type {RuleNode} */ (rule.eval(context)).rules).filter(function(/** @type {Node & { variable?: boolean }} */ r) {
|
|
if ((r instanceof Declaration) && r.variable) {
|
|
// do not pollute the scope at all
|
|
return false;
|
|
}
|
|
return true;
|
|
});
|
|
rsRules.splice.apply(rsRules, /** @type {[number, number, ...Node[]]} */ ([i, 1].concat(rules)));
|
|
i += rules.length - 1;
|
|
ruleset.resetCache();
|
|
}
|
|
}
|
|
|
|
// Evaluate everything else
|
|
for (i = 0; (rule = rsRules[i]); i++) {
|
|
if (!/** @type {RuleNode} */ (rule).evalFirst) {
|
|
rsRules[i] = rule = rule.eval ? rule.eval(context) : rule;
|
|
}
|
|
}
|
|
|
|
// Evaluate everything else
|
|
for (i = 0; (rule = rsRules[i]); i++) {
|
|
// for rulesets, check if it is a css guard and can be removed
|
|
if (rule instanceof Ruleset && rule.selectors && rule.selectors.length === 1) {
|
|
// check if it can be folded in (e.g. & where)
|
|
if (rule.selectors[0] && rule.selectors[0].isJustParentSelector()) {
|
|
rsRules.splice(i--, 1);
|
|
|
|
for (let j = 0; (subRule = rule.rules[j]); j++) {
|
|
if (subRule instanceof Node) {
|
|
subRule.copyVisibilityInfo(rule.visibilityInfo());
|
|
if (!(subRule instanceof Declaration) || !subRule.variable) {
|
|
rsRules.splice(++i, 0, subRule);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Pop the stack
|
|
ctxFrames.shift();
|
|
ctxSelectors.shift();
|
|
|
|
if (context.mediaBlocks) {
|
|
for (i = mediaBlockCount; i < context.mediaBlocks.length; i++) {
|
|
/** @type {RuleNode} */ (context.mediaBlocks[i]).bubbleSelectors(selectors);
|
|
}
|
|
}
|
|
|
|
return ruleset;
|
|
}
|
|
|
|
/** @param {EvalContext} context */
|
|
evalImports(context) {
|
|
const rules = this.rules;
|
|
/** @type {number} */
|
|
let i;
|
|
/** @type {Node | Node[]} */
|
|
let importRules;
|
|
if (!rules) { return; }
|
|
|
|
for (i = 0; i < rules.length; i++) {
|
|
if (rules[i].type === 'Import') {
|
|
importRules = rules[i].eval(context);
|
|
if (importRules && (/** @type {Node[]} */ (/** @type {unknown} */ (importRules)).length || /** @type {Node[]} */ (/** @type {unknown} */ (importRules)).length === 0)) {
|
|
const importArr = /** @type {Node[]} */ (/** @type {unknown} */ (importRules));
|
|
rules.splice(i, 1, ...importArr);
|
|
i += importArr.length - 1;
|
|
} else {
|
|
rules.splice(i, 1, importRules);
|
|
}
|
|
this.resetCache();
|
|
}
|
|
}
|
|
}
|
|
|
|
makeImportant() {
|
|
const result = new Ruleset(this.selectors, /** @type {Node[]} */ (this.rules).map(function (/** @type {Node & { makeImportant?: () => Node }} */ r) {
|
|
if (r.makeImportant) {
|
|
return r.makeImportant();
|
|
} else {
|
|
return r;
|
|
}
|
|
}), this.strictImports, this.visibilityInfo());
|
|
|
|
return result;
|
|
}
|
|
|
|
/** @param {Node[] | object[] | null} [args] */
|
|
matchArgs(args) {
|
|
return !args || args.length === 0;
|
|
}
|
|
|
|
/**
|
|
* @param {Node[] | object[] | null} args
|
|
* @param {EvalContext} context
|
|
*/
|
|
matchCondition(args, context) {
|
|
const lastSelector = /** @type {Selector[]} */ (this.selectors)[/** @type {Selector[]} */ (this.selectors).length - 1];
|
|
if (!lastSelector.evaldCondition) {
|
|
return false;
|
|
}
|
|
if (lastSelector.condition &&
|
|
!lastSelector.condition.eval(
|
|
new contexts.Eval(context,
|
|
context.frames))) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
resetCache() {
|
|
this._rulesets = null;
|
|
this._variables = null;
|
|
this._properties = null;
|
|
this._lookups = {};
|
|
}
|
|
|
|
variables() {
|
|
if (!this._variables) {
|
|
this._variables = !this.rules ? {} : this.rules.reduce(function (/** @type {Object<string, Declaration>} */ hash, /** @type {Node} */ r) {
|
|
if (r instanceof Declaration && r.variable === true) {
|
|
hash[/** @type {string} */ (r.name)] = r;
|
|
}
|
|
// when evaluating variables in an import statement, imports have not been eval'd
|
|
// so we need to go inside import statements.
|
|
// guard against root being a string (in the case of inlined less)
|
|
if (r.type === 'Import' && /** @type {RuleNode} */ (r).root && /** @type {RuleNode & { root: Ruleset }} */ (r).root.variables) {
|
|
const vars = /** @type {RuleNode & { root: Ruleset }} */ (r).root.variables();
|
|
for (const name in vars) {
|
|
if (Object.prototype.hasOwnProperty.call(vars, name)) {
|
|
hash[name] = /** @type {Declaration} */ (/** @type {RuleNode & { root: Ruleset }} */ (r).root.variable(name));
|
|
}
|
|
}
|
|
}
|
|
return hash;
|
|
}, {});
|
|
}
|
|
return this._variables;
|
|
}
|
|
|
|
properties() {
|
|
if (!this._properties) {
|
|
this._properties = !this.rules ? {} : this.rules.reduce(function (/** @type {Object<string, Declaration[]>} */ hash, /** @type {Node} */ r) {
|
|
if (r instanceof Declaration && r.variable !== true) {
|
|
const name = (/** @type {Node[]} */ (r.name).length === 1) && (/** @type {Node[]} */ (r.name)[0] instanceof Keyword) ?
|
|
/** @type {string} */ (/** @type {Node[]} */ (r.name)[0].value) : /** @type {string} */ (r.name);
|
|
// Properties don't overwrite as they can merge
|
|
if (!hash[`$${name}`]) {
|
|
hash[`$${name}`] = [ r ];
|
|
}
|
|
else {
|
|
hash[`$${name}`].push(r);
|
|
}
|
|
}
|
|
return hash;
|
|
}, {});
|
|
}
|
|
return this._properties;
|
|
}
|
|
|
|
/** @param {string} name */
|
|
variable(name) {
|
|
const decl = this.variables()[name];
|
|
if (decl) {
|
|
return this.parseValue(decl);
|
|
}
|
|
}
|
|
|
|
/** @param {string} name */
|
|
property(name) {
|
|
const decl = this.properties()[name];
|
|
if (decl) {
|
|
return this.parseValue(decl);
|
|
}
|
|
}
|
|
|
|
lastDeclaration() {
|
|
for (let i = /** @type {Node[]} */ (this.rules).length; i > 0; i--) {
|
|
const decl = /** @type {Node[]} */ (this.rules)[i - 1];
|
|
if (decl instanceof Declaration) {
|
|
return this.parseValue(decl);
|
|
}
|
|
}
|
|
}
|
|
|
|
/** @param {Declaration | Declaration[]} toParse */
|
|
parseValue(toParse) {
|
|
const self = this;
|
|
/** @param {Declaration} decl */
|
|
function transformDeclaration(decl) {
|
|
if (decl.value instanceof Anonymous && !/** @type {Declaration & { parsed?: boolean }} */ (decl).parsed) {
|
|
if (typeof decl.value.value === 'string') {
|
|
new (/** @type {new (...args: [EvalContext, object, FileInfo, number]) => { parseNode: Function }} */ (/** @type {unknown} */ (Parser)))(/** @type {{ context: EvalContext, importManager: object }} */ (/** @type {Ruleset} */ (this).parse).context, /** @type {{ context: EvalContext, importManager: object }} */ (/** @type {Ruleset} */ (this).parse).importManager, decl.fileInfo(), decl.value.getIndex()).parseNode(
|
|
decl.value.value,
|
|
['value', 'important'],
|
|
function(/** @type {Error | null} */ err, /** @type {Node[]} */ result) {
|
|
if (err) {
|
|
decl.parsed = /** @type {Node} */ (/** @type {unknown} */ (true));
|
|
}
|
|
if (result) {
|
|
decl.value = result[0];
|
|
/** @type {Declaration & { important?: string }} */ (decl).important = /** @type {string} */ (/** @type {unknown} */ (result[1])) || '';
|
|
decl.parsed = /** @type {Node} */ (/** @type {unknown} */ (true));
|
|
}
|
|
});
|
|
} else {
|
|
decl.parsed = /** @type {Node} */ (/** @type {unknown} */ (true));
|
|
}
|
|
|
|
return decl;
|
|
}
|
|
else {
|
|
return decl;
|
|
}
|
|
}
|
|
if (!Array.isArray(toParse)) {
|
|
return transformDeclaration.call(self, toParse);
|
|
}
|
|
else {
|
|
/** @type {Declaration[]} */
|
|
const nodes = [];
|
|
for (let ti = 0; ti < toParse.length; ti++) {
|
|
nodes.push(transformDeclaration.call(self, toParse[ti]));
|
|
}
|
|
return nodes;
|
|
}
|
|
}
|
|
|
|
rulesets() {
|
|
if (!this.rules) { return []; }
|
|
|
|
/** @type {Node[]} */
|
|
const filtRules = [];
|
|
const rules = this.rules;
|
|
/** @type {number} */
|
|
let i;
|
|
/** @type {Node} */
|
|
let rule;
|
|
|
|
for (i = 0; (rule = rules[i]); i++) {
|
|
if (/** @type {RuleNode} */ (rule).isRuleset) {
|
|
filtRules.push(rule);
|
|
}
|
|
}
|
|
|
|
return filtRules;
|
|
}
|
|
|
|
/** @param {Node} rule */
|
|
prependRule(rule) {
|
|
const rules = this.rules;
|
|
if (rules) {
|
|
rules.unshift(rule);
|
|
} else {
|
|
this.rules = [ rule ];
|
|
}
|
|
this.setParent(rule, this);
|
|
}
|
|
|
|
/**
|
|
* @param {Selector} selector
|
|
* @param {Ruleset | null} [self]
|
|
* @param {((rule: Node) => boolean)} [filter]
|
|
* @returns {{ rule: Node, path: Node[] }[]}
|
|
*/
|
|
find(selector, self, filter) {
|
|
self = self || this;
|
|
/** @type {{ rule: Node, path: Node[] }[]} */
|
|
const rules = [];
|
|
/** @type {number | undefined} */
|
|
let match;
|
|
/** @type {{ rule: Node, path: Node[] }[]} */
|
|
let foundMixins;
|
|
const key = selector.toCSS(/** @type {EvalContext} */ ({}));
|
|
|
|
if (key in this._lookups) { return /** @type {{ rule: Node, path: Node[] }[]} */ (this._lookups[key]); }
|
|
|
|
this.rulesets().forEach(function (rule) {
|
|
if (rule !== self) {
|
|
for (let j = 0; j < /** @type {RuleNode} */ (rule).selectors.length; j++) {
|
|
match = selector.match(/** @type {RuleNode} */ (rule).selectors[j]);
|
|
if (match) {
|
|
if (selector.elements.length > match) {
|
|
if (!filter || filter(rule)) {
|
|
foundMixins = /** @type {Ruleset} */ (/** @type {unknown} */ (rule)).find(new Selector(selector.elements.slice(match)), self, filter);
|
|
for (let i = 0; i < foundMixins.length; ++i) {
|
|
foundMixins[i].path.push(rule);
|
|
}
|
|
Array.prototype.push.apply(rules, foundMixins);
|
|
}
|
|
} else {
|
|
rules.push({ rule, path: []});
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
});
|
|
this._lookups[key] = rules;
|
|
return rules;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
/** @type {number} */
|
|
let i;
|
|
/** @type {number} */
|
|
let j;
|
|
/** @type {Node[]} */
|
|
const charsetRuleNodes = [];
|
|
/** @type {Node[]} */
|
|
let ruleNodes = [];
|
|
|
|
let // Line number debugging
|
|
debugInfo$1;
|
|
|
|
/** @type {Node} */
|
|
let rule;
|
|
/** @type {Selector[]} */
|
|
let path;
|
|
|
|
context.tabLevel = (context.tabLevel || 0);
|
|
|
|
if (!this.root) {
|
|
context.tabLevel++;
|
|
}
|
|
|
|
const tabRuleStr = context.compress ? '' : Array(context.tabLevel + 1).join(' ');
|
|
const tabSetStr = context.compress ? '' : Array(context.tabLevel).join(' ');
|
|
/** @type {string} */
|
|
let sep;
|
|
|
|
let charsetNodeIndex = 0;
|
|
let importNodeIndex = 0;
|
|
for (i = 0; (rule = /** @type {Node[]} */ (this.rules)[i]); i++) {
|
|
if (rule instanceof Comment) {
|
|
if (importNodeIndex === i) {
|
|
importNodeIndex++;
|
|
}
|
|
ruleNodes.push(rule);
|
|
} else if (/** @type {RuleNode} */ (rule).isCharset && /** @type {RuleNode} */ (rule).isCharset()) {
|
|
ruleNodes.splice(charsetNodeIndex, 0, rule);
|
|
charsetNodeIndex++;
|
|
importNodeIndex++;
|
|
} else if (rule.type === 'Import') {
|
|
ruleNodes.splice(importNodeIndex, 0, rule);
|
|
importNodeIndex++;
|
|
} else {
|
|
ruleNodes.push(rule);
|
|
}
|
|
}
|
|
ruleNodes = charsetRuleNodes.concat(ruleNodes);
|
|
|
|
// If this is the root node, we don't render
|
|
// a selector, or {}.
|
|
if (!this.root) {
|
|
debugInfo$1 = debugInfo(context, /** @type {{ debugInfo: { lineNumber: number, fileName: string } }} */ (/** @type {unknown} */ (this)), tabSetStr);
|
|
|
|
if (debugInfo$1) {
|
|
output.add(debugInfo$1);
|
|
output.add(tabSetStr);
|
|
}
|
|
|
|
const paths = /** @type {Selector[][]} */ (this.paths);
|
|
const pathCnt = paths.length;
|
|
/** @type {number} */
|
|
let pathSubCnt;
|
|
|
|
sep = context.compress ? ',' : (`,\n${tabSetStr}`);
|
|
|
|
for (i = 0; i < pathCnt; i++) {
|
|
path = paths[i];
|
|
if (!(pathSubCnt = path.length)) { continue; }
|
|
if (i > 0) { output.add(sep); }
|
|
|
|
/** @type {EvalContext & { firstSelector?: boolean }} */ (context).firstSelector = true;
|
|
path[0].genCSS(context, output);
|
|
|
|
/** @type {EvalContext & { firstSelector?: boolean }} */ (context).firstSelector = false;
|
|
for (j = 1; j < pathSubCnt; j++) {
|
|
path[j].genCSS(context, output);
|
|
}
|
|
}
|
|
|
|
output.add((context.compress ? '{' : ' {\n') + tabRuleStr);
|
|
}
|
|
|
|
// Compile rules and rulesets
|
|
for (i = 0; (rule = ruleNodes[i]); i++) {
|
|
|
|
if (i + 1 === ruleNodes.length) {
|
|
context.lastRule = true;
|
|
}
|
|
|
|
const currentLastRule = context.lastRule;
|
|
if (rule.isRulesetLike()) {
|
|
context.lastRule = false;
|
|
}
|
|
|
|
if (rule.genCSS) {
|
|
rule.genCSS(context, output);
|
|
} else if (rule.value) {
|
|
output.add(/** @type {string} */ (rule.value).toString());
|
|
}
|
|
|
|
context.lastRule = currentLastRule;
|
|
|
|
if (!context.lastRule && rule.isVisible()) {
|
|
output.add(context.compress ? '' : (`\n${tabRuleStr}`));
|
|
} else {
|
|
context.lastRule = false;
|
|
}
|
|
}
|
|
|
|
if (!this.root) {
|
|
output.add((context.compress ? '}' : `\n${tabSetStr}}`));
|
|
context.tabLevel--;
|
|
}
|
|
|
|
if (!output.isEmpty() && !context.compress && this.firstRoot) {
|
|
output.add('\n');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {Selector[][]} paths
|
|
* @param {Selector[][]} context
|
|
* @param {Selector[]} selectors
|
|
*/
|
|
joinSelectors(paths, context, selectors) {
|
|
for (let s = 0; s < selectors.length; s++) {
|
|
this.joinSelector(paths, context, selectors[s]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {Selector[][]} paths
|
|
* @param {Selector[][]} context
|
|
* @param {Selector} selector
|
|
*/
|
|
joinSelector(paths, context, selector) {
|
|
|
|
/**
|
|
* @param {Selector[]} elementsToPak
|
|
* @param {Element} originalElement
|
|
* @returns {Paren}
|
|
*/
|
|
function createParenthesis(elementsToPak, originalElement) {
|
|
/** @type {Paren} */
|
|
let replacementParen;
|
|
/** @type {number} */
|
|
let j;
|
|
if (elementsToPak.length === 0) {
|
|
replacementParen = new Paren(elementsToPak[0]);
|
|
} else {
|
|
const insideParent = new Array(elementsToPak.length);
|
|
for (j = 0; j < elementsToPak.length; j++) {
|
|
insideParent[j] = new Element(
|
|
null,
|
|
elementsToPak[j],
|
|
originalElement.isVariable,
|
|
originalElement._index,
|
|
originalElement._fileInfo
|
|
);
|
|
}
|
|
replacementParen = new Paren(new Selector(insideParent));
|
|
}
|
|
return replacementParen;
|
|
}
|
|
|
|
/**
|
|
* @param {Paren | Selector} containedElement
|
|
* @param {Element} originalElement
|
|
* @returns {Selector}
|
|
*/
|
|
function createSelector(containedElement, originalElement) {
|
|
/** @type {Element} */
|
|
let element;
|
|
/** @type {Selector} */
|
|
let selector;
|
|
element = new Element(null, containedElement, originalElement.isVariable, originalElement._index, originalElement._fileInfo);
|
|
selector = new Selector([element]);
|
|
return selector;
|
|
}
|
|
|
|
/**
|
|
* @param {Selector[]} beginningPath
|
|
* @param {Selector[]} addPath
|
|
* @param {Element} replacedElement
|
|
* @param {Selector} originalSelector
|
|
* @returns {Selector[]}
|
|
*/
|
|
function addReplacementIntoPath(beginningPath, addPath, replacedElement, originalSelector) {
|
|
/** @type {Selector[]} */
|
|
let newSelectorPath;
|
|
/** @type {Selector} */
|
|
let lastSelector;
|
|
/** @type {Selector} */
|
|
let newJoinedSelector;
|
|
// our new selector path
|
|
newSelectorPath = [];
|
|
|
|
// construct the joined selector - if & is the first thing this will be empty,
|
|
// if not newJoinedSelector will be the last set of elements in the selector
|
|
if (beginningPath.length > 0) {
|
|
newSelectorPath = copyArray(beginningPath);
|
|
lastSelector = newSelectorPath.pop();
|
|
newJoinedSelector = originalSelector.createDerived(copyArray(lastSelector.elements));
|
|
}
|
|
else {
|
|
newJoinedSelector = originalSelector.createDerived([]);
|
|
}
|
|
|
|
if (addPath.length > 0) {
|
|
// /deep/ is a CSS4 selector - (removed, so should deprecate)
|
|
// that is valid without anything in front of it
|
|
// so if the & does not have a combinator that is "" or " " then
|
|
// and there is a combinator on the parent, then grab that.
|
|
// this also allows + a { & .b { .a & { ... though not sure why you would want to do that
|
|
let combinator = replacedElement.combinator;
|
|
|
|
const parentEl = addPath[0].elements[0];
|
|
if (combinator.emptyOrWhitespace && !parentEl.combinator.emptyOrWhitespace) {
|
|
combinator = parentEl.combinator;
|
|
}
|
|
// join the elements so far with the first part of the parent
|
|
newJoinedSelector.elements.push(new Element(
|
|
combinator,
|
|
parentEl.value,
|
|
replacedElement.isVariable,
|
|
replacedElement._index,
|
|
replacedElement._fileInfo
|
|
));
|
|
newJoinedSelector.elements = newJoinedSelector.elements.concat(addPath[0].elements.slice(1));
|
|
}
|
|
|
|
// now add the joined selector - but only if it is not empty
|
|
if (newJoinedSelector.elements.length !== 0) {
|
|
newSelectorPath.push(newJoinedSelector);
|
|
}
|
|
|
|
// put together the parent selectors after the join (e.g. the rest of the parent)
|
|
if (addPath.length > 1) {
|
|
let restOfPath = addPath.slice(1);
|
|
restOfPath = restOfPath.map(function (/** @type {Selector} */ selector) {
|
|
return selector.createDerived(selector.elements, []);
|
|
});
|
|
newSelectorPath = newSelectorPath.concat(restOfPath);
|
|
}
|
|
return newSelectorPath;
|
|
}
|
|
|
|
/**
|
|
* @param {Selector[][]} beginningPath
|
|
* @param {Selector[]} addPaths
|
|
* @param {Element} replacedElement
|
|
* @param {Selector} originalSelector
|
|
* @param {Selector[][]} result
|
|
* @returns {Selector[][]}
|
|
*/
|
|
function addAllReplacementsIntoPath( beginningPath, addPaths, replacedElement, originalSelector, result) {
|
|
/** @type {number} */
|
|
let j;
|
|
for (j = 0; j < beginningPath.length; j++) {
|
|
const newSelectorPath = addReplacementIntoPath(beginningPath[j], addPaths, replacedElement, originalSelector);
|
|
result.push(newSelectorPath);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* @param {Element[]} elements
|
|
* @param {Selector[][]} selectors
|
|
*/
|
|
function mergeElementsOnToSelectors(elements, selectors) {
|
|
/** @type {number} */
|
|
let i;
|
|
/** @type {Selector[]} */
|
|
let sel;
|
|
|
|
if (elements.length === 0) {
|
|
return ;
|
|
}
|
|
if (selectors.length === 0) {
|
|
selectors.push([ new Selector(elements) ]);
|
|
return;
|
|
}
|
|
|
|
for (i = 0; (sel = selectors[i]); i++) {
|
|
// if the previous thing in sel is a parent this needs to join on to it
|
|
if (sel.length > 0) {
|
|
sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements));
|
|
}
|
|
else {
|
|
sel.push(new Selector(elements));
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {Selector[][]} paths
|
|
* @param {Selector[][]} context
|
|
* @param {Selector} inSelector
|
|
* @returns {boolean}
|
|
*/
|
|
function replaceParentSelector(paths, context, inSelector) {
|
|
// The paths are [[Selector]]
|
|
// The first list is a list of comma separated selectors
|
|
// The inner list is a list of inheritance separated selectors
|
|
// e.g.
|
|
// .a, .b {
|
|
// .c {
|
|
// }
|
|
// }
|
|
// == [[.a] [.c]] [[.b] [.c]]
|
|
//
|
|
/** @type {number} */
|
|
let i;
|
|
/** @type {number} */
|
|
let j;
|
|
/** @type {number} */
|
|
let k;
|
|
/** @type {Element[]} */
|
|
let currentElements;
|
|
/** @type {Selector[][]} */
|
|
let newSelectors;
|
|
/** @type {Selector[][]} */
|
|
let selectorsMultiplied;
|
|
/** @type {Selector[]} */
|
|
let sel;
|
|
/** @type {Element} */
|
|
let el;
|
|
let hadParentSelector = false;
|
|
/** @type {number} */
|
|
let length;
|
|
/** @type {Selector} */
|
|
let lastSelector;
|
|
|
|
/**
|
|
* @param {Element} element
|
|
* @returns {Selector | null}
|
|
*/
|
|
function findNestedSelector(element) {
|
|
/** @type {Node} */
|
|
let maybeSelector;
|
|
if (!(element.value instanceof Paren)) {
|
|
return null;
|
|
}
|
|
|
|
maybeSelector = /** @type {Node} */ (element.value.value);
|
|
if (!(maybeSelector instanceof Selector)) {
|
|
return null;
|
|
}
|
|
|
|
return maybeSelector;
|
|
}
|
|
|
|
// the elements from the current selector so far
|
|
currentElements = [];
|
|
// the current list of new selectors to add to the path.
|
|
// We will build it up. We initiate it with one empty selector as we "multiply" the new selectors
|
|
// by the parents
|
|
newSelectors = [
|
|
[]
|
|
];
|
|
|
|
for (i = 0; (el = inSelector.elements[i]); i++) {
|
|
// non parent reference elements just get added
|
|
if (el.value !== '&') {
|
|
const nestedSelector = findNestedSelector(el);
|
|
if (nestedSelector !== null) {
|
|
// merge the current list of non parent selector elements
|
|
// on to the current list of selectors to add
|
|
mergeElementsOnToSelectors(currentElements, newSelectors);
|
|
|
|
/** @type {Selector[][]} */
|
|
const nestedPaths = [];
|
|
/** @type {boolean | undefined} */
|
|
let replaced;
|
|
/** @type {Selector[][]} */
|
|
const replacedNewSelectors = [];
|
|
|
|
// Check if this is a comma-separated selector list inside the paren
|
|
// e.g. :not(&.a, &.b) produces Selector([Selector, Anonymous(','), Selector])
|
|
const hasSubSelectors = nestedSelector.elements.some(e => e instanceof Selector);
|
|
|
|
if (hasSubSelectors) {
|
|
// Process each sub-selector individually
|
|
/** @type {(Element | Selector)[]} */
|
|
const resolvedElements = [];
|
|
for (const subEl of nestedSelector.elements) {
|
|
if (subEl instanceof Selector) {
|
|
/** @type {Selector[][]} */
|
|
const subPaths = [];
|
|
const subReplaced = replaceParentSelector(subPaths, context, subEl);
|
|
replaced = replaced || subReplaced;
|
|
if (subPaths.length > 0 && subPaths[0].length > 0) {
|
|
resolvedElements.push(subPaths[0][0]);
|
|
} else {
|
|
resolvedElements.push(subEl);
|
|
}
|
|
} else {
|
|
resolvedElements.push(subEl);
|
|
}
|
|
}
|
|
hadParentSelector = hadParentSelector || /** @type {boolean} */ (replaced);
|
|
const resolvedNestedSelector = new Selector(resolvedElements);
|
|
const replacementSelector = createSelector(createParenthesis([resolvedNestedSelector], el), el);
|
|
addAllReplacementsIntoPath(newSelectors, [replacementSelector], el, inSelector, replacedNewSelectors);
|
|
} else {
|
|
replaced = replaceParentSelector(nestedPaths, context, nestedSelector);
|
|
hadParentSelector = hadParentSelector || replaced;
|
|
// the nestedPaths array should have only one member - replaceParentSelector does not multiply selectors
|
|
for (k = 0; k < nestedPaths.length; k++) {
|
|
const replacementSelector = createSelector(createParenthesis(nestedPaths[k], el), el);
|
|
addAllReplacementsIntoPath(newSelectors, [replacementSelector], el, inSelector, replacedNewSelectors);
|
|
}
|
|
}
|
|
newSelectors = replacedNewSelectors;
|
|
currentElements = [];
|
|
} else {
|
|
currentElements.push(el);
|
|
}
|
|
|
|
} else {
|
|
hadParentSelector = true;
|
|
// the new list of selectors to add
|
|
selectorsMultiplied = [];
|
|
|
|
// merge the current list of non parent selector elements
|
|
// on to the current list of selectors to add
|
|
mergeElementsOnToSelectors(currentElements, newSelectors);
|
|
|
|
// loop through our current selectors
|
|
for (j = 0; j < newSelectors.length; j++) {
|
|
sel = newSelectors[j];
|
|
// if we don't have any parent paths, the & might be in a mixin so that it can be used
|
|
// whether there are parents or not
|
|
if (context.length === 0) {
|
|
// the combinator used on el should now be applied to the next element instead so that
|
|
// it is not lost
|
|
if (sel.length > 0) {
|
|
sel[0].elements.push(new Element(el.combinator, '', el.isVariable, el._index, el._fileInfo));
|
|
}
|
|
selectorsMultiplied.push(sel);
|
|
}
|
|
else {
|
|
// and the parent selectors
|
|
for (k = 0; k < context.length; k++) {
|
|
// We need to put the current selectors
|
|
// then join the last selector's elements on to the parents selectors
|
|
const newSelectorPath = addReplacementIntoPath(sel, context[k], el, inSelector);
|
|
// add that to our new set of selectors
|
|
selectorsMultiplied.push(newSelectorPath);
|
|
}
|
|
}
|
|
}
|
|
|
|
// our new selectors has been multiplied, so reset the state
|
|
newSelectors = selectorsMultiplied;
|
|
currentElements = [];
|
|
}
|
|
}
|
|
|
|
// if we have any elements left over (e.g. .a& .b == .b)
|
|
// add them on to all the current selectors
|
|
mergeElementsOnToSelectors(currentElements, newSelectors);
|
|
|
|
for (i = 0; i < newSelectors.length; i++) {
|
|
length = newSelectors[i].length;
|
|
if (length > 0) {
|
|
paths.push(newSelectors[i]);
|
|
lastSelector = newSelectors[i][length - 1];
|
|
newSelectors[i][length - 1] = lastSelector.createDerived(lastSelector.elements, inSelector.extendList);
|
|
}
|
|
}
|
|
|
|
return hadParentSelector;
|
|
}
|
|
|
|
/**
|
|
* @param {VisibilityInfo} visibilityInfo
|
|
* @param {Selector} deriveFrom
|
|
*/
|
|
function deriveSelector(visibilityInfo, deriveFrom) {
|
|
const newSelector = deriveFrom.createDerived(deriveFrom.elements, deriveFrom.extendList, deriveFrom.evaldCondition);
|
|
newSelector.copyVisibilityInfo(visibilityInfo);
|
|
return newSelector;
|
|
}
|
|
|
|
// joinSelector code follows
|
|
/** @type {number} */
|
|
let i;
|
|
/** @type {Selector[][]} */
|
|
let newPaths;
|
|
/** @type {boolean} */
|
|
let hadParentSelector;
|
|
|
|
newPaths = [];
|
|
hadParentSelector = replaceParentSelector(newPaths, context, selector);
|
|
|
|
if (!hadParentSelector) {
|
|
if (context.length > 0) {
|
|
newPaths = [];
|
|
for (i = 0; i < context.length; i++) {
|
|
|
|
const concatenated = context[i].map(deriveSelector.bind(this, selector.visibilityInfo()));
|
|
|
|
concatenated.push(selector);
|
|
newPaths.push(concatenated);
|
|
}
|
|
}
|
|
else {
|
|
newPaths = [[selector]];
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < newPaths.length; i++) {
|
|
paths.push(newPaths[i]);
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
/**
|
|
* @typedef {object} FunctionRegistry
|
|
* @property {(name: string, func: Function) => void} add
|
|
* @property {(functions: Object) => void} addMultiple
|
|
* @property {(name: string) => Function} get
|
|
* @property {() => Object} getLocalFunctions
|
|
* @property {() => FunctionRegistry} inherit
|
|
* @property {(base: FunctionRegistry) => FunctionRegistry} create
|
|
*/
|
|
|
|
/**
|
|
* @typedef {Node & {
|
|
* features: Value,
|
|
* rules: Ruleset[],
|
|
* type: string,
|
|
* functionRegistry?: FunctionRegistry,
|
|
* multiMedia?: boolean,
|
|
* debugInfo?: { lineNumber: number, fileName: string },
|
|
* allowRoot?: boolean,
|
|
* _evaluated?: boolean,
|
|
* evalFunction: () => void,
|
|
* evalTop: (context: EvalContext) => Node | Ruleset,
|
|
* evalNested: (context: EvalContext) => Node | Ruleset,
|
|
* permute: (arr: Node[][]) => Node[][],
|
|
* bubbleSelectors: (selectors: Selector[] | undefined) => void,
|
|
* outputRuleset: (context: EvalContext, output: CSSOutput, rules: Node[]) => void
|
|
* }} NestableAtRuleThis
|
|
*/
|
|
|
|
const NestableAtRulePrototype = {
|
|
|
|
isRulesetLike() {
|
|
return true;
|
|
},
|
|
|
|
/** @param {TreeVisitor} visitor */
|
|
accept(visitor) {
|
|
/** @type {NestableAtRuleThis} */
|
|
const self = /** @type {NestableAtRuleThis} */ (/** @type {unknown} */ (this));
|
|
if (self.features) {
|
|
self.features = /** @type {Value} */ (visitor.visit(self.features));
|
|
}
|
|
if (self.rules) {
|
|
self.rules = /** @type {Ruleset[]} */ (visitor.visitArray(self.rules));
|
|
}
|
|
},
|
|
|
|
evalFunction: function () {
|
|
/** @type {NestableAtRuleThis} */
|
|
const self = /** @type {NestableAtRuleThis} */ (/** @type {unknown} */ (this));
|
|
if (!self.features || !Array.isArray(self.features.value) || self.features.value.length < 1) {
|
|
return;
|
|
}
|
|
|
|
const exprValues = /** @type {Node[]} */ (self.features.value);
|
|
/** @type {Node | undefined} */
|
|
let expr;
|
|
/** @type {Node | undefined} */
|
|
let paren;
|
|
|
|
for (let index = 0; index < exprValues.length; ++index) {
|
|
expr = exprValues[index];
|
|
|
|
if ((expr.type === 'Keyword' || expr.type === 'Variable')
|
|
&& index + 1 < exprValues.length
|
|
&& (/** @type {Node & { noSpacing?: boolean }} */ (expr).noSpacing || /** @type {Node & { noSpacing?: boolean }} */ (expr).noSpacing == null)) {
|
|
paren = exprValues[index + 1];
|
|
|
|
if (paren.type === 'Paren' && /** @type {Node & { noSpacing?: boolean }} */ (paren).noSpacing) {
|
|
exprValues[index]= new Expression([expr, paren]);
|
|
exprValues.splice(index + 1, 1);
|
|
/** @type {Node & { noSpacing?: boolean }} */ (exprValues[index]).noSpacing = true;
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
/** @param {EvalContext} context */
|
|
evalTop(context) {
|
|
/** @type {NestableAtRuleThis} */
|
|
const self = /** @type {NestableAtRuleThis} */ (/** @type {unknown} */ (this));
|
|
self.evalFunction();
|
|
|
|
/** @type {Node | Ruleset} */
|
|
let result = self;
|
|
|
|
// Render all dependent Media blocks.
|
|
if (context.mediaBlocks.length > 1) {
|
|
const selectors = (new Selector([], null, null, self.getIndex(), self.fileInfo())).createEmptySelectors();
|
|
result = new Ruleset(selectors, context.mediaBlocks);
|
|
/** @type {Ruleset & { multiMedia?: boolean }} */ (result).multiMedia = true;
|
|
result.copyVisibilityInfo(self.visibilityInfo());
|
|
self.setParent(result, self);
|
|
}
|
|
|
|
delete context.mediaBlocks;
|
|
delete context.mediaPath;
|
|
|
|
return result;
|
|
},
|
|
|
|
/** @param {EvalContext} context */
|
|
evalNested(context) {
|
|
/** @type {NestableAtRuleThis} */
|
|
const self = /** @type {NestableAtRuleThis} */ (/** @type {unknown} */ (this));
|
|
self.evalFunction();
|
|
|
|
let i;
|
|
/** @type {Node | Node[]} */
|
|
let value;
|
|
const path = context.mediaPath.concat([self]);
|
|
|
|
// Extract the media-query conditions separated with `,` (OR).
|
|
for (i = 0; i < path.length; i++) {
|
|
if (path[i].type !== self.type) {
|
|
const blockIndex = context.mediaBlocks.indexOf(self);
|
|
if (blockIndex > -1) {
|
|
context.mediaBlocks.splice(blockIndex, 1);
|
|
}
|
|
return self;
|
|
}
|
|
|
|
value = /** @type {NestableAtRuleThis} */ (path[i]).features instanceof Value ?
|
|
/** @type {Node[]} */ (/** @type {NestableAtRuleThis} */ (path[i]).features.value) : /** @type {NestableAtRuleThis} */ (path[i]).features;
|
|
path[i] = /** @type {Node} */ (/** @type {unknown} */ (Array.isArray(value) ? value : [value]));
|
|
}
|
|
|
|
// Trace all permutations to generate the resulting media-query.
|
|
//
|
|
// (a, b and c) with nested (d, e) ->
|
|
// a and d
|
|
// a and e
|
|
// b and c and d
|
|
// b and c and e
|
|
self.features = new Value(self.permute(/** @type {Node[][]} */ (/** @type {unknown} */ (path))).map(
|
|
/** @param {Node | Node[]} path */
|
|
path => {
|
|
path = /** @type {Node[]} */ (path).map(
|
|
/** @param {Node & { toCSS?: Function }} fragment */
|
|
fragment => fragment.toCSS ? fragment : new Anonymous(/** @type {string} */ (/** @type {unknown} */ (fragment))));
|
|
|
|
for (i = /** @type {Node[]} */ (path).length - 1; i > 0; i--) {
|
|
/** @type {Node[]} */ (path).splice(i, 0, new Anonymous('and'));
|
|
}
|
|
|
|
return new Expression(/** @type {Node[]} */ (path));
|
|
}));
|
|
self.setParent(self.features, self);
|
|
|
|
// Fake a tree-node that doesn't output anything.
|
|
return new Ruleset([], []);
|
|
},
|
|
|
|
/**
|
|
* @param {Node[][]} arr
|
|
* @returns {Node[][]}
|
|
*/
|
|
permute(arr) {
|
|
if (arr.length === 0) {
|
|
return [];
|
|
} else if (arr.length === 1) {
|
|
return /** @type {Node[][]} */ (/** @type {unknown} */ (arr[0]));
|
|
} else {
|
|
/** @type {Node[][]} */
|
|
const result = [];
|
|
const rest = this.permute(arr.slice(1));
|
|
for (let i = 0; i < rest.length; i++) {
|
|
for (let j = 0; j < arr[0].length; j++) {
|
|
result.push([arr[0][j]].concat(rest[i]));
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
},
|
|
|
|
/** @param {Selector[] | undefined} selectors */
|
|
bubbleSelectors(selectors) {
|
|
/** @type {NestableAtRuleThis} */
|
|
const self = /** @type {NestableAtRuleThis} */ (/** @type {unknown} */ (this));
|
|
if (!selectors) {
|
|
return;
|
|
}
|
|
self.rules = [new Ruleset(copyArray(selectors), [self.rules[0]])];
|
|
self.setParent(self.rules, self);
|
|
}
|
|
};
|
|
|
|
// @ts-check
|
|
|
|
/**
|
|
* @typedef {Node & {
|
|
* rules?: Node[],
|
|
* selectors?: Selector[],
|
|
* root?: boolean,
|
|
* allowImports?: boolean,
|
|
* functionRegistry?: FunctionRegistry,
|
|
* merge?: boolean,
|
|
* debugInfo?: { lineNumber: number, fileName: string },
|
|
* elements?: import('./element.js').default[]
|
|
* }} RulesetLikeNode
|
|
*/
|
|
|
|
class AtRule extends Node {
|
|
get type() { return 'AtRule'; }
|
|
|
|
/**
|
|
* @param {string} [name]
|
|
* @param {Node | string} [value]
|
|
* @param {Node[] | Ruleset} [rules]
|
|
* @param {number} [index]
|
|
* @param {FileInfo} [currentFileInfo]
|
|
* @param {{ lineNumber: number, fileName: string }} [debugInfo]
|
|
* @param {boolean} [isRooted]
|
|
* @param {VisibilityInfo} [visibilityInfo]
|
|
*/
|
|
constructor(
|
|
name,
|
|
value,
|
|
rules,
|
|
index,
|
|
currentFileInfo,
|
|
debugInfo,
|
|
isRooted,
|
|
visibilityInfo
|
|
) {
|
|
super();
|
|
let i;
|
|
(new Selector([], null, null, index, currentFileInfo)).createEmptySelectors();
|
|
|
|
/** @type {string | undefined} */
|
|
this.name = name;
|
|
this.value = (value instanceof Node) ? value : (value ? new Anonymous(value) : value);
|
|
/** @type {boolean | undefined} */
|
|
this.simpleBlock = undefined;
|
|
/** @type {RulesetLikeNode[] | undefined} */
|
|
this.declarations = undefined;
|
|
/** @type {RulesetLikeNode[] | undefined} */
|
|
this.rules = undefined;
|
|
if (rules) {
|
|
if (Array.isArray(rules)) {
|
|
const allDeclarations = this.declarationsBlock(rules);
|
|
|
|
let allRulesetDeclarations = true;
|
|
rules.forEach(rule => {
|
|
if (rule.type === 'Ruleset' && /** @type {RulesetLikeNode} */ (rule).rules) allRulesetDeclarations = allRulesetDeclarations && this.declarationsBlock(/** @type {Node[]} */ (/** @type {RulesetLikeNode} */ (rule).rules), true);
|
|
});
|
|
|
|
if (allDeclarations && !isRooted) {
|
|
this.simpleBlock = true;
|
|
this.declarations = rules;
|
|
} else if (allRulesetDeclarations && rules.length === 1 && !isRooted && !value) {
|
|
this.simpleBlock = true;
|
|
this.declarations = /** @type {RulesetLikeNode} */ (rules[0]).rules ? /** @type {RulesetLikeNode} */ (rules[0]).rules : rules;
|
|
} else {
|
|
this.rules = rules;
|
|
}
|
|
} else {
|
|
const allDeclarations = this.declarationsBlock(/** @type {Node[]} */ (rules.rules));
|
|
|
|
if (allDeclarations && !isRooted && !value) {
|
|
this.simpleBlock = true;
|
|
this.declarations = rules.rules;
|
|
} else {
|
|
this.rules = [rules];
|
|
/** @type {RulesetLikeNode} */ (this.rules[0]).selectors = (new Selector([], null, null, index, currentFileInfo)).createEmptySelectors();
|
|
}
|
|
}
|
|
if (!this.simpleBlock) {
|
|
for (i = 0; i < this.rules.length; i++) {
|
|
/** @type {RulesetLikeNode} */ (this.rules[i]).allowImports = true;
|
|
}
|
|
}
|
|
if (this.declarations) {
|
|
this.setParent(this.declarations, /** @type {Node} */ (/** @type {unknown} */ (this)));
|
|
}
|
|
if (this.rules) {
|
|
this.setParent(this.rules, /** @type {Node} */ (/** @type {unknown} */ (this)));
|
|
}
|
|
}
|
|
this._index = index;
|
|
this._fileInfo = currentFileInfo;
|
|
/** @type {{ lineNumber: number, fileName: string } | undefined} */
|
|
this.debugInfo = debugInfo;
|
|
/** @type {boolean} */
|
|
this.isRooted = isRooted || false;
|
|
this.copyVisibilityInfo(visibilityInfo);
|
|
this.allowRoot = true;
|
|
}
|
|
|
|
/**
|
|
* @param {Node[]} rules
|
|
* @param {boolean} [mergeable]
|
|
* @returns {boolean}
|
|
*/
|
|
declarationsBlock(rules, mergeable = false) {
|
|
if (!mergeable) {
|
|
return rules.filter(function (/** @type {Node & { merge?: boolean }} */ node) { return (node.type === 'Declaration' || node.type === 'Comment') && !node.merge}).length === rules.length;
|
|
} else {
|
|
return rules.filter(function (/** @type {Node} */ node) { return (node.type === 'Declaration' || node.type === 'Comment'); }).length === rules.length;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {Node[]} rules
|
|
* @returns {boolean}
|
|
*/
|
|
keywordList(rules) {
|
|
if (!Array.isArray(rules)) {
|
|
return false;
|
|
} else {
|
|
return rules.filter(function (/** @type {Node} */ node) { return (node.type === 'Keyword' || node.type === 'Comment'); }).length === rules.length;
|
|
}
|
|
}
|
|
|
|
/** @param {TreeVisitor} visitor */
|
|
accept(visitor) {
|
|
const value = this.value, rules = this.rules, declarations = this.declarations;
|
|
|
|
if (rules) {
|
|
this.rules = visitor.visitArray(rules);
|
|
} else if (declarations) {
|
|
this.declarations = visitor.visitArray(declarations);
|
|
}
|
|
if (value) {
|
|
this.value = visitor.visit(/** @type {Node} */ (value));
|
|
}
|
|
}
|
|
|
|
/** @override @returns {boolean} */
|
|
isRulesetLike() {
|
|
return /** @type {boolean} */ (/** @type {unknown} */ (this.rules || !this.isCharset()));
|
|
}
|
|
|
|
isCharset() {
|
|
return '@charset' === this.name;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
const value = this.value, rules = this.rules || this.declarations;
|
|
output.add(/** @type {string} */ (this.name), this.fileInfo(), this.getIndex());
|
|
if (value) {
|
|
output.add(' ');
|
|
/** @type {Node} */ (value).genCSS(context, output);
|
|
}
|
|
if (this.simpleBlock) {
|
|
this.outputRuleset(context, output, /** @type {Node[]} */ (this.declarations));
|
|
} else if (rules) {
|
|
this.outputRuleset(context, output, rules);
|
|
} else {
|
|
output.add(';');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {Node}
|
|
*/
|
|
eval(context) {
|
|
let mediaPathBackup, mediaBlocksBackup, value = this.value, rules = this.rules || this.declarations;
|
|
|
|
// media stored inside other atrule should not bubble over it
|
|
// backpup media bubbling information
|
|
mediaPathBackup = context.mediaPath;
|
|
mediaBlocksBackup = context.mediaBlocks;
|
|
// deleted media bubbling information
|
|
context.mediaPath = [];
|
|
context.mediaBlocks = [];
|
|
|
|
if (value) {
|
|
value = /** @type {Node} */ (value).eval(context);
|
|
}
|
|
|
|
if (rules) {
|
|
rules = this.evalRoot(context, rules);
|
|
}
|
|
if (Array.isArray(rules) && /** @type {RulesetLikeNode} */ (rules[0]).rules && Array.isArray(/** @type {RulesetLikeNode} */ (rules[0]).rules) && /** @type {Node[]} */ (/** @type {RulesetLikeNode} */ (rules[0]).rules).length) {
|
|
const allMergeableDeclarations = this.declarationsBlock(/** @type {Node[]} */ (/** @type {RulesetLikeNode} */ (rules[0]).rules), true);
|
|
if (allMergeableDeclarations && !this.isRooted && !value) {
|
|
mergeRules(/** @type {Node[]} */ (/** @type {RulesetLikeNode} */ (rules[0]).rules));
|
|
rules = /** @type {RulesetLikeNode[]} */ (/** @type {RulesetLikeNode} */ (rules[0]).rules);
|
|
rules.forEach(/** @param {RulesetLikeNode} rule */ rule => { rule.merge = false; });
|
|
}
|
|
}
|
|
if (this.simpleBlock && rules) {
|
|
/** @type {RulesetLikeNode} */ (rules[0]).functionRegistry = /** @type {RulesetLikeNode} */ (context.frames[0]).functionRegistry.inherit();
|
|
rules = rules.map(function (/** @type {Node} */ rule) { return rule.eval(context); });
|
|
}
|
|
|
|
// restore media bubbling information
|
|
context.mediaPath = mediaPathBackup;
|
|
context.mediaBlocks = mediaBlocksBackup;
|
|
return /** @type {Node} */ (/** @type {unknown} */ (new AtRule(this.name, value, rules, this.getIndex(), this.fileInfo(), this.debugInfo, this.isRooted, this.visibilityInfo())));
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {Node[]} rules
|
|
* @returns {Node[]}
|
|
*/
|
|
evalRoot(context, rules) {
|
|
let ampersandCount = 0;
|
|
let noAmpersandCount = 0;
|
|
let noAmpersands = true;
|
|
|
|
if (!this.simpleBlock) {
|
|
rules = [rules[0].eval(context)];
|
|
}
|
|
|
|
/** @type {Selector[]} */
|
|
let precedingSelectors = [];
|
|
if (context.frames.length > 0) {
|
|
for (let index = 0; index < context.frames.length; index++) {
|
|
const frame = /** @type {RulesetLikeNode} */ (context.frames[index]);
|
|
if (
|
|
frame.type === 'Ruleset' &&
|
|
frame.rules &&
|
|
frame.rules.length > 0
|
|
) {
|
|
if (frame && !frame.root && frame.selectors && frame.selectors.length > 0) {
|
|
precedingSelectors = precedingSelectors.concat(frame.selectors);
|
|
}
|
|
}
|
|
if (precedingSelectors.length > 0) {
|
|
const allAmpersandElements = precedingSelectors.every(
|
|
sel => sel.elements && sel.elements.length > 0 && sel.elements.every(
|
|
/** @param {import('./element.js').default} el */
|
|
el => el.value === '&'
|
|
)
|
|
);
|
|
if (allAmpersandElements) {
|
|
noAmpersands = false;
|
|
noAmpersandCount++;
|
|
} else {
|
|
ampersandCount++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
const mixedAmpersands = ampersandCount > 0 && noAmpersandCount > 0 && !noAmpersands;
|
|
if (
|
|
(this.isRooted && ampersandCount > 0 && noAmpersandCount === 0 && noAmpersands)
|
|
|| !mixedAmpersands
|
|
) {
|
|
/** @type {RulesetLikeNode} */ (rules[0]).root = true;
|
|
}
|
|
return rules;
|
|
}
|
|
|
|
/** @param {string} name */
|
|
variable(name) {
|
|
if (this.rules) {
|
|
// assuming that there is only one rule at this point - that is how parser constructs the rule
|
|
return Ruleset.prototype.variable.call(this.rules[0], name);
|
|
}
|
|
}
|
|
|
|
find() {
|
|
if (this.rules) {
|
|
// assuming that there is only one rule at this point - that is how parser constructs the rule
|
|
return Ruleset.prototype.find.apply(this.rules[0], arguments);
|
|
}
|
|
}
|
|
|
|
rulesets() {
|
|
if (this.rules) {
|
|
// assuming that there is only one rule at this point - that is how parser constructs the rule
|
|
return Ruleset.prototype.rulesets.apply(this.rules[0]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
* @param {Node[]} rules
|
|
*/
|
|
outputRuleset(context, output, rules) {
|
|
const ruleCnt = rules.length;
|
|
let i;
|
|
context.tabLevel = (context.tabLevel | 0) + 1;
|
|
|
|
// Compressed
|
|
if (context.compress) {
|
|
output.add('{');
|
|
for (i = 0; i < ruleCnt; i++) {
|
|
rules[i].genCSS(context, output);
|
|
}
|
|
output.add('}');
|
|
context.tabLevel--;
|
|
return;
|
|
}
|
|
|
|
// Non-compressed
|
|
const tabSetStr = `\n${Array(context.tabLevel).join(' ')}`, tabRuleStr = `${tabSetStr} `;
|
|
if (!ruleCnt) {
|
|
output.add(` {${tabSetStr}}`);
|
|
} else {
|
|
output.add(` {${tabRuleStr}`);
|
|
rules[0].genCSS(context, output);
|
|
for (i = 1; i < ruleCnt; i++) {
|
|
output.add(tabRuleStr);
|
|
rules[i].genCSS(context, output);
|
|
}
|
|
output.add(`${tabSetStr}}`);
|
|
}
|
|
|
|
context.tabLevel--;
|
|
}
|
|
}
|
|
|
|
// Apply shared methods from NestableAtRulePrototype that AtRule doesn't override
|
|
const { evalFunction, evalTop, evalNested, permute, bubbleSelectors } = NestableAtRulePrototype;
|
|
Object.assign(AtRule.prototype, { evalFunction, evalTop, evalNested, permute, bubbleSelectors });
|
|
|
|
// @ts-check
|
|
|
|
class DetachedRuleset extends Node {
|
|
get type() { return 'DetachedRuleset'; }
|
|
|
|
/**
|
|
* @param {Node} ruleset
|
|
* @param {Node[]} [frames]
|
|
*/
|
|
constructor(ruleset, frames) {
|
|
super();
|
|
this.ruleset = ruleset;
|
|
this.frames = frames;
|
|
this.evalFirst = true;
|
|
this.setParent(this.ruleset, this);
|
|
}
|
|
|
|
/** @param {TreeVisitor} visitor */
|
|
accept(visitor) {
|
|
this.ruleset = visitor.visit(this.ruleset);
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {DetachedRuleset}
|
|
*/
|
|
eval(context) {
|
|
const frames = this.frames || copyArray(context.frames);
|
|
return new DetachedRuleset(this.ruleset, frames);
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {Node}
|
|
*/
|
|
callEval(context) {
|
|
return this.ruleset.eval(this.frames ? new contexts.Eval(context, this.frames.concat(context.frames)) : context);
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
const MATH = Math$1;
|
|
|
|
class Operation extends Node {
|
|
get type() { return 'Operation'; }
|
|
|
|
/**
|
|
* @param {string} op
|
|
* @param {Node[]} operands
|
|
* @param {boolean} isSpaced
|
|
*/
|
|
constructor(op, operands, isSpaced) {
|
|
super();
|
|
this.op = op.trim();
|
|
this.operands = operands;
|
|
this.isSpaced = isSpaced;
|
|
}
|
|
|
|
/** @param {TreeVisitor} visitor */
|
|
accept(visitor) {
|
|
this.operands = visitor.visitArray(this.operands);
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {Node}
|
|
*/
|
|
eval(context) {
|
|
let a = this.operands[0].eval(context), b = this.operands[1].eval(context), op;
|
|
|
|
if (context.isMathOn(this.op)) {
|
|
op = this.op === './' ? '/' : this.op;
|
|
if (a instanceof Dimension && b instanceof Color) {
|
|
a = /** @type {Dimension} */ (a).toColor();
|
|
}
|
|
if (b instanceof Dimension && a instanceof Color) {
|
|
b = /** @type {Dimension} */ (b).toColor();
|
|
}
|
|
if (!/** @type {Dimension | Color} */ (a).operate || !/** @type {Dimension | Color} */ (b).operate) {
|
|
if (
|
|
(a instanceof Operation || b instanceof Operation)
|
|
&& /** @type {Operation} */ (a).op === '/' && context.math === MATH.PARENS_DIVISION
|
|
) {
|
|
return new Operation(this.op, [a, b], this.isSpaced);
|
|
}
|
|
throw { type: 'Operation',
|
|
message: 'Operation on an invalid type' };
|
|
}
|
|
|
|
if (a instanceof Dimension) {
|
|
return a.operate(context, op, /** @type {Dimension} */ (b));
|
|
}
|
|
return /** @type {Color} */ (a).operate(context, op, /** @type {Color} */ (b));
|
|
} else {
|
|
return new Operation(this.op, [a, b], this.isSpaced);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
this.operands[0].genCSS(context, output);
|
|
if (this.isSpaced) {
|
|
output.add(' ');
|
|
}
|
|
output.add(this.op);
|
|
if (this.isSpaced) {
|
|
output.add(' ');
|
|
}
|
|
this.operands[1].genCSS(context, output);
|
|
}
|
|
}
|
|
|
|
class functionCaller {
|
|
constructor(name, context, index, currentFileInfo) {
|
|
this.name = name.toLowerCase();
|
|
this.index = index;
|
|
this.context = context;
|
|
this.currentFileInfo = currentFileInfo;
|
|
|
|
this.func = context.frames[0].functionRegistry.get(this.name);
|
|
}
|
|
|
|
isValid() {
|
|
return Boolean(this.func);
|
|
}
|
|
|
|
call(args) {
|
|
if (!(Array.isArray(args))) {
|
|
args = [args];
|
|
}
|
|
const evalArgs = this.func.evalArgs;
|
|
if (evalArgs !== false) {
|
|
args = args.map(a => a.eval(this.context));
|
|
}
|
|
const commentFilter = item => !(item.type === 'Comment');
|
|
|
|
// This code is terrible and should be replaced as per this issue...
|
|
// https://github.com/less/less.js/issues/2477
|
|
args = args
|
|
.filter(commentFilter)
|
|
.map(item => {
|
|
if (item.type === 'Expression') {
|
|
const subNodes = item.value.filter(commentFilter);
|
|
if (subNodes.length === 1) {
|
|
// https://github.com/less/less.js/issues/3616
|
|
if (item.parens && subNodes[0].op === '/') {
|
|
return item;
|
|
}
|
|
return subNodes[0];
|
|
} else {
|
|
return new Expression(subNodes);
|
|
}
|
|
}
|
|
return item;
|
|
});
|
|
|
|
if (evalArgs === false) {
|
|
return this.func(this.context, ...args);
|
|
}
|
|
|
|
return this.func(...args);
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
//
|
|
// A function call node.
|
|
//
|
|
class Call extends Node {
|
|
get type() { return 'Call'; }
|
|
|
|
/**
|
|
* @param {string} name
|
|
* @param {Node[]} args
|
|
* @param {number} index
|
|
* @param {FileInfo} currentFileInfo
|
|
*/
|
|
constructor(name, args, index, currentFileInfo) {
|
|
super();
|
|
this.name = name;
|
|
this.args = args;
|
|
this.calc = name === 'calc';
|
|
this._index = index;
|
|
this._fileInfo = currentFileInfo;
|
|
}
|
|
|
|
/** @param {TreeVisitor} visitor */
|
|
accept(visitor) {
|
|
if (this.args) {
|
|
this.args = visitor.visitArray(this.args);
|
|
}
|
|
}
|
|
|
|
//
|
|
// When evaluating a function call,
|
|
// we either find the function in the functionRegistry,
|
|
// in which case we call it, passing the evaluated arguments,
|
|
// if this returns null or we cannot find the function, we
|
|
// simply print it out as it appeared originally [2].
|
|
//
|
|
// The reason why we evaluate the arguments, is in the case where
|
|
// we try to pass a variable to a function, like: `saturate(@color)`.
|
|
// The function should receive the value, not the variable.
|
|
//
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {Node}
|
|
*/
|
|
eval(context) {
|
|
/**
|
|
* Turn off math for calc(), and switch back on for evaluating nested functions
|
|
*/
|
|
const currentMathContext = context.mathOn;
|
|
context.mathOn = !this.calc;
|
|
if (this.calc || context.inCalc) {
|
|
context.enterCalc();
|
|
}
|
|
|
|
const exitCalc = () => {
|
|
if (this.calc || context.inCalc) {
|
|
context.exitCalc();
|
|
}
|
|
context.mathOn = currentMathContext;
|
|
};
|
|
|
|
/** @type {Node | string | boolean | null | undefined} */
|
|
let result;
|
|
const funcCaller = new functionCaller(this.name, context, this.getIndex(), this.fileInfo());
|
|
|
|
if (funcCaller.isValid()) {
|
|
try {
|
|
result = funcCaller.call(this.args);
|
|
exitCalc();
|
|
} catch (e) {
|
|
// eslint-disable-next-line no-prototype-builtins
|
|
if (/** @type {Record<string, unknown>} */ (e).hasOwnProperty('line') && /** @type {Record<string, unknown>} */ (e).hasOwnProperty('column')) {
|
|
throw e;
|
|
}
|
|
throw {
|
|
type: /** @type {Record<string, string>} */ (e).type || 'Runtime',
|
|
message: `Error evaluating function \`${this.name}\`${/** @type {Error} */ (e).message ? `: ${/** @type {Error} */ (e).message}` : ''}`,
|
|
index: this.getIndex(),
|
|
filename: this.fileInfo().filename,
|
|
line: /** @type {Record<string, number>} */ (e).lineNumber,
|
|
column: /** @type {Record<string, number>} */ (e).columnNumber
|
|
};
|
|
}
|
|
}
|
|
|
|
if (result !== null && result !== undefined) {
|
|
// Results that that are not nodes are cast as Anonymous nodes
|
|
// Falsy values or booleans are returned as empty nodes
|
|
if (!(result instanceof Node)) {
|
|
if (!result || result === true) {
|
|
result = new Anonymous(null);
|
|
}
|
|
else {
|
|
result = new Anonymous(result.toString());
|
|
}
|
|
|
|
}
|
|
result._index = this._index;
|
|
result._fileInfo = this._fileInfo;
|
|
return result;
|
|
}
|
|
|
|
const args = this.args.map(a => a.eval(context));
|
|
exitCalc();
|
|
|
|
return new Call(this.name, args, this.getIndex(), this.fileInfo());
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
output.add(`${this.name}(`, this.fileInfo(), this.getIndex());
|
|
|
|
for (let i = 0; i < this.args.length; i++) {
|
|
this.args[i].genCSS(context, output);
|
|
if (i + 1 < this.args.length) {
|
|
output.add(', ');
|
|
}
|
|
}
|
|
|
|
output.add(')');
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class Variable extends Node {
|
|
get type() { return 'Variable'; }
|
|
|
|
/**
|
|
* @param {string} name
|
|
* @param {number} [index]
|
|
* @param {FileInfo} [currentFileInfo]
|
|
*/
|
|
constructor(name, index, currentFileInfo) {
|
|
super();
|
|
this.name = name;
|
|
this._index = index;
|
|
this._fileInfo = currentFileInfo;
|
|
/** @type {boolean | undefined} */
|
|
this.evaluating = undefined;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {Node}
|
|
*/
|
|
eval(context) {
|
|
let variable, name = this.name;
|
|
|
|
if (name.indexOf('@@') === 0) {
|
|
name = `@${new Variable(name.slice(1), this.getIndex(), this.fileInfo()).eval(context).value}`;
|
|
}
|
|
|
|
if (this.evaluating) {
|
|
throw { type: 'Name',
|
|
message: `Recursive variable definition for ${name}`,
|
|
filename: this.fileInfo().filename,
|
|
index: this.getIndex() };
|
|
}
|
|
|
|
this.evaluating = true;
|
|
|
|
variable = this.find(context.frames, function (frame) {
|
|
const v = /** @type {Ruleset} */ (frame).variable(name);
|
|
if (v) {
|
|
if (v.important) {
|
|
const importantScope = context.importantScope[context.importantScope.length - 1];
|
|
importantScope.important = v.important;
|
|
}
|
|
// If in calc, wrap vars in a function call to cascade evaluate args first
|
|
if (context.inCalc) {
|
|
return (new Call('_SELF', [v.value], 0, undefined)).eval(context);
|
|
}
|
|
else {
|
|
return v.value.eval(context);
|
|
}
|
|
}
|
|
});
|
|
if (variable) {
|
|
this.evaluating = false;
|
|
return variable;
|
|
} else {
|
|
throw { type: 'Name',
|
|
message: `variable ${name} is undefined`,
|
|
filename: this.fileInfo().filename,
|
|
index: this.getIndex() };
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {Node[]} obj
|
|
* @param {(frame: Node) => Node | undefined} fun
|
|
* @returns {Node | null}
|
|
*/
|
|
find(obj, fun) {
|
|
for (let i = 0, r; i < obj.length; i++) {
|
|
r = fun.call(obj, obj[i]);
|
|
if (r) { return r; }
|
|
}
|
|
return null;
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class Property extends Node {
|
|
get type() { return 'Property'; }
|
|
|
|
/**
|
|
* @param {string} name
|
|
* @param {number} index
|
|
* @param {FileInfo} currentFileInfo
|
|
*/
|
|
constructor(name, index, currentFileInfo) {
|
|
super();
|
|
this.name = name;
|
|
this._index = index;
|
|
this._fileInfo = currentFileInfo;
|
|
/** @type {boolean | undefined} */
|
|
this.evaluating = undefined;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {Node}
|
|
*/
|
|
eval(context) {
|
|
let property;
|
|
const name = this.name;
|
|
// TODO: shorten this reference
|
|
const mergeRules = /** @type {{ less: { visitors: { ToCSSVisitor: { prototype: { _mergeRules: (rules: Declaration[]) => void } } } } }} */ (context.pluginManager).less.visitors.ToCSSVisitor.prototype._mergeRules;
|
|
|
|
if (this.evaluating) {
|
|
throw { type: 'Name',
|
|
message: `Recursive property reference for ${name}`,
|
|
filename: this.fileInfo().filename,
|
|
index: this.getIndex() };
|
|
}
|
|
|
|
this.evaluating = true;
|
|
|
|
property = this.find(context.frames, function (/** @type {Node} */ frame) {
|
|
let v;
|
|
const vArr = /** @type {Ruleset} */ (frame).property(name);
|
|
if (vArr) {
|
|
for (let i = 0; i < vArr.length; i++) {
|
|
v = vArr[i];
|
|
|
|
vArr[i] = new Declaration(v.name,
|
|
v.value,
|
|
v.important,
|
|
v.merge,
|
|
v.index,
|
|
v.currentFileInfo,
|
|
v.inline,
|
|
v.variable
|
|
);
|
|
}
|
|
mergeRules(vArr);
|
|
|
|
v = vArr[vArr.length - 1];
|
|
if (v.important) {
|
|
const importantScope = context.importantScope[context.importantScope.length - 1];
|
|
importantScope.important = v.important;
|
|
}
|
|
v = v.value.eval(context);
|
|
return v;
|
|
}
|
|
});
|
|
if (property) {
|
|
this.evaluating = false;
|
|
return property;
|
|
} else {
|
|
throw { type: 'Name',
|
|
message: `Property '${name}' is undefined`,
|
|
filename: this.currentFileInfo.filename,
|
|
index: this.index };
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {Node[]} obj
|
|
* @param {(frame: Node) => Node | undefined} fun
|
|
* @returns {Node | null}
|
|
*/
|
|
find(obj, fun) {
|
|
for (let i = 0, r; i < obj.length; i++) {
|
|
r = fun.call(obj, obj[i]);
|
|
if (r) { return r; }
|
|
}
|
|
return null;
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class Attribute extends Node {
|
|
get type() { return 'Attribute'; }
|
|
|
|
/**
|
|
* @param {string | Node} key
|
|
* @param {string} op
|
|
* @param {string | Node} value
|
|
* @param {string} cif
|
|
*/
|
|
constructor(key, op, value, cif) {
|
|
super();
|
|
this.key = key;
|
|
this.op = op;
|
|
this.value = value;
|
|
this.cif = cif;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {Attribute}
|
|
*/
|
|
eval(context) {
|
|
return new Attribute(
|
|
/** @type {Node} */ (this.key).eval ? /** @type {Node} */ (this.key).eval(context) : /** @type {string} */ (this.key),
|
|
this.op,
|
|
(this.value && /** @type {Node} */ (this.value).eval) ? /** @type {Node} */ (this.value).eval(context) : this.value,
|
|
this.cif
|
|
);
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
output.add(this.toCSS(context));
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {string}
|
|
*/
|
|
toCSS(context) {
|
|
let value = /** @type {Node} */ (this.key).toCSS ? /** @type {Node} */ (this.key).toCSS(context) : /** @type {string} */ (this.key);
|
|
|
|
if (this.op) {
|
|
value += this.op;
|
|
value += (/** @type {Node} */ (this.value).toCSS ? /** @type {Node} */ (this.value).toCSS(context) : /** @type {string} */ (this.value));
|
|
}
|
|
|
|
if (this.cif) {
|
|
value = value + ' ' + this.cif;
|
|
}
|
|
|
|
return `[${value}]`;
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class Quoted extends Node {
|
|
get type() { return 'Quoted'; }
|
|
|
|
/**
|
|
* @param {string} str
|
|
* @param {string} [content]
|
|
* @param {boolean} [escaped]
|
|
* @param {number} [index]
|
|
* @param {FileInfo} [currentFileInfo]
|
|
*/
|
|
constructor(str, content, escaped, index, currentFileInfo) {
|
|
super();
|
|
/** @type {boolean} */
|
|
this.escaped = (escaped === undefined) ? true : escaped;
|
|
/** @type {string} */
|
|
this.value = content || '';
|
|
/** @type {string} */
|
|
this.quote = str.charAt(0);
|
|
this._index = index;
|
|
this._fileInfo = currentFileInfo;
|
|
/** @type {RegExp} */
|
|
this.variableRegex = /@\{([\w-]+)\}/g;
|
|
/** @type {RegExp} */
|
|
this.propRegex = /\$\{([\w-]+)\}/g;
|
|
/** @type {boolean | undefined} */
|
|
this.allowRoot = escaped;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
if (!this.escaped) {
|
|
output.add(this.quote, this.fileInfo(), this.getIndex());
|
|
}
|
|
output.add(/** @type {string} */ (this.value));
|
|
if (!this.escaped) {
|
|
output.add(this.quote);
|
|
}
|
|
}
|
|
|
|
/** @returns {RegExpMatchArray | null} */
|
|
containsVariables() {
|
|
return /** @type {string} */ (this.value).match(this.variableRegex);
|
|
}
|
|
|
|
/** @param {EvalContext} context */
|
|
eval(context) {
|
|
const that = this;
|
|
let value = /** @type {string} */ (this.value);
|
|
/**
|
|
* @param {string} _
|
|
* @param {string} name1
|
|
* @param {string} name2
|
|
* @returns {string}
|
|
*/
|
|
const variableReplacement = function (_, name1, name2) {
|
|
const v = new Variable(`@${name1 ?? name2}`, that.getIndex(), that.fileInfo()).eval(context);
|
|
return (v instanceof Quoted) ? /** @type {string} */ (v.value) : v.toCSS(context);
|
|
};
|
|
/**
|
|
* @param {string} _
|
|
* @param {string} name1
|
|
* @param {string} name2
|
|
* @returns {string}
|
|
*/
|
|
const propertyReplacement = function (_, name1, name2) {
|
|
const v = new Property(`$${name1 ?? name2}`, that.getIndex(), that.fileInfo()).eval(context);
|
|
return (v instanceof Quoted) ? /** @type {string} */ (v.value) : v.toCSS(context);
|
|
};
|
|
/**
|
|
* @param {string} value
|
|
* @param {RegExp} regexp
|
|
* @param {(substring: string, ...args: string[]) => string} replacementFnc
|
|
* @returns {string}
|
|
*/
|
|
function iterativeReplace(value, regexp, replacementFnc) {
|
|
let evaluatedValue = value;
|
|
do {
|
|
value = evaluatedValue.toString();
|
|
evaluatedValue = value.replace(regexp, replacementFnc);
|
|
} while (value !== evaluatedValue);
|
|
return evaluatedValue;
|
|
}
|
|
value = iterativeReplace(value, this.variableRegex, variableReplacement);
|
|
value = iterativeReplace(value, this.propRegex, propertyReplacement);
|
|
return new Quoted(this.quote + value + this.quote, value, this.escaped, this.getIndex(), this.fileInfo());
|
|
}
|
|
|
|
/**
|
|
* @param {Node} other
|
|
* @returns {number | undefined}
|
|
*/
|
|
compare(other) {
|
|
// when comparing quoted strings allow the quote to differ
|
|
if (other.type === 'Quoted' && !this.escaped && !/** @type {Quoted} */ (other).escaped) {
|
|
return Node.numericCompare(
|
|
/** @type {string} */ (this.value),
|
|
/** @type {string} */ (other.value)
|
|
);
|
|
} else {
|
|
return other.toCSS && this.toCSS(/** @type {EvalContext} */ ({})) === other.toCSS(/** @type {EvalContext} */ ({})) ? 0 : undefined;
|
|
}
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
/**
|
|
* @param {string} path
|
|
* @returns {string}
|
|
*/
|
|
function escapePath(path) {
|
|
return path.replace(/[()'"\s]/g, function(match) { return `\\${match}`; });
|
|
}
|
|
|
|
class URL extends Node {
|
|
get type() { return 'Url'; }
|
|
|
|
/**
|
|
* @param {Node} val
|
|
* @param {number} index
|
|
* @param {FileInfo} currentFileInfo
|
|
* @param {boolean} [isEvald]
|
|
*/
|
|
constructor(val, index, currentFileInfo, isEvald) {
|
|
super();
|
|
this.value = val;
|
|
this._index = index;
|
|
this._fileInfo = currentFileInfo;
|
|
/** @type {boolean | undefined} */
|
|
this.isEvald = isEvald;
|
|
}
|
|
|
|
/** @param {TreeVisitor} visitor */
|
|
accept(visitor) {
|
|
this.value = visitor.visit(/** @type {Node} */ (this.value));
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
output.add('url(');
|
|
/** @type {Node} */ (this.value).genCSS(context, output);
|
|
output.add(')');
|
|
}
|
|
|
|
/** @param {EvalContext} context */
|
|
eval(context) {
|
|
const val = /** @type {Node} */ (this.value).eval(context);
|
|
let rootpath;
|
|
|
|
if (!this.isEvald) {
|
|
// Add the rootpath if the URL requires a rewrite
|
|
rootpath = this.fileInfo() && this.fileInfo().rootpath;
|
|
if (typeof rootpath === 'string' &&
|
|
typeof val.value === 'string' &&
|
|
context.pathRequiresRewrite(/** @type {string} */ (val.value))) {
|
|
if (!/** @type {import('./quoted.js').default} */ (val).quote) {
|
|
rootpath = escapePath(rootpath);
|
|
}
|
|
val.value = context.rewritePath(/** @type {string} */ (val.value), rootpath);
|
|
} else {
|
|
val.value = context.normalizePath(/** @type {string} */ (val.value));
|
|
}
|
|
|
|
// Add url args if enabled
|
|
if (context.urlArgs) {
|
|
if (!/** @type {string} */ (val.value).match(/^\s*data:/)) {
|
|
const delimiter = /** @type {string} */ (val.value).indexOf('?') === -1 ? '?' : '&';
|
|
const urlArgs = delimiter + context.urlArgs;
|
|
if (/** @type {string} */ (val.value).indexOf('#') !== -1) {
|
|
val.value = /** @type {string} */ (val.value).replace('#', `${urlArgs}#`);
|
|
} else {
|
|
val.value += urlArgs;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return new URL(val, this.getIndex(), this.fileInfo(), true);
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class Media extends AtRule {
|
|
get type() { return 'Media'; }
|
|
|
|
/**
|
|
* @param {Node[] | null} value
|
|
* @param {Node[]} features
|
|
* @param {number} [index]
|
|
* @param {FileInfo} [currentFileInfo]
|
|
* @param {VisibilityInfo} [visibilityInfo]
|
|
*/
|
|
constructor(value, features, index, currentFileInfo, visibilityInfo) {
|
|
super();
|
|
this._index = index;
|
|
this._fileInfo = currentFileInfo;
|
|
|
|
const selectors = (new Selector([], null, null, this._index, this._fileInfo)).createEmptySelectors();
|
|
|
|
/** @type {Value} */
|
|
this.features = new Value(features);
|
|
/** @type {RulesetLikeNode[]} */
|
|
this.rules = [new Ruleset(selectors, value)];
|
|
/** @type {RulesetLikeNode} */ (this.rules[0]).allowImports = true;
|
|
this.copyVisibilityInfo(visibilityInfo);
|
|
this.allowRoot = true;
|
|
this.setParent(selectors, /** @type {Node} */ (/** @type {unknown} */ (this)));
|
|
this.setParent(this.features, /** @type {Node} */ (/** @type {unknown} */ (this)));
|
|
this.setParent(this.rules, /** @type {Node} */ (/** @type {unknown} */ (this)));
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
output.add('@media ', this._fileInfo, this._index);
|
|
this.features.genCSS(context, output);
|
|
this.outputRuleset(context, output, this.rules);
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {Node}
|
|
*/
|
|
eval(context) {
|
|
if (!context.mediaBlocks) {
|
|
context.mediaBlocks = [];
|
|
context.mediaPath = [];
|
|
}
|
|
|
|
const media = new Media(null, [], this._index, this._fileInfo, this.visibilityInfo());
|
|
if (this.debugInfo) {
|
|
/** @type {RulesetLikeNode} */ (this.rules[0]).debugInfo = this.debugInfo;
|
|
media.debugInfo = this.debugInfo;
|
|
}
|
|
|
|
media.features = /** @type {Value} */ (this.features.eval(context));
|
|
|
|
context.mediaPath.push(/** @type {Node} */ (/** @type {unknown} */ (media)));
|
|
context.mediaBlocks.push(/** @type {Node} */ (/** @type {unknown} */ (media)));
|
|
|
|
const fr = /** @type {RulesetLikeNode} */ (context.frames[0]).functionRegistry;
|
|
if (fr) {
|
|
/** @type {RulesetLikeNode} */ (this.rules[0]).functionRegistry = fr.inherit();
|
|
}
|
|
context.frames.unshift(this.rules[0]);
|
|
media.rules = [/** @type {RulesetLikeNode} */ (this.rules[0].eval(context))];
|
|
context.frames.shift();
|
|
|
|
context.mediaPath.pop();
|
|
|
|
return context.mediaPath.length === 0 ? /** @type {NestableAtRuleThis} */ (/** @type {unknown} */ (media)).evalTop(context) :
|
|
/** @type {NestableAtRuleThis} */ (/** @type {unknown} */ (media)).evalNested(context);
|
|
}
|
|
}
|
|
|
|
// Apply NestableAtRulePrototype methods (accept, isRulesetLike override AtRule's versions)
|
|
Object.assign(Media.prototype, NestableAtRulePrototype);
|
|
|
|
// @ts-check
|
|
|
|
/**
|
|
* @typedef {object} ImportOptions
|
|
* @property {boolean} [less]
|
|
* @property {boolean} [inline]
|
|
* @property {boolean} [isPlugin]
|
|
* @property {boolean} [reference]
|
|
*/
|
|
|
|
//
|
|
// CSS @import node
|
|
//
|
|
// The general strategy here is that we don't want to wait
|
|
// for the parsing to be completed, before we start importing
|
|
// the file. That's because in the context of a browser,
|
|
// most of the time will be spent waiting for the server to respond.
|
|
//
|
|
// On creation, we push the import path to our import queue, though
|
|
// `import,push`, we also pass it a callback, which it'll call once
|
|
// the file has been fetched, and parsed.
|
|
//
|
|
class Import extends Node {
|
|
get type() { return 'Import'; }
|
|
|
|
/**
|
|
* @param {Node} path
|
|
* @param {Node | null} features
|
|
* @param {ImportOptions} options
|
|
* @param {number} index
|
|
* @param {FileInfo} [currentFileInfo]
|
|
* @param {VisibilityInfo} [visibilityInfo]
|
|
*/
|
|
constructor(path, features, options, index, currentFileInfo, visibilityInfo) {
|
|
super();
|
|
/** @type {ImportOptions} */
|
|
this.options = options;
|
|
this._index = index;
|
|
this._fileInfo = currentFileInfo;
|
|
this.path = path;
|
|
/** @type {Node | null} */
|
|
this.features = features;
|
|
/** @type {boolean} */
|
|
this.allowRoot = true;
|
|
|
|
/** @type {boolean | undefined} */
|
|
this.css = undefined;
|
|
/** @type {boolean | undefined} */
|
|
this.layerCss = undefined;
|
|
/** @type {(Ruleset & { imports?: object, filename?: string, functions?: object, functionRegistry?: { addMultiple: (fns: object) => void } }) | undefined} */
|
|
this.root = undefined;
|
|
/** @type {string | undefined} */
|
|
this.importedFilename = undefined;
|
|
/** @type {boolean | (() => boolean) | undefined} */
|
|
this.skip = undefined;
|
|
/** @type {{ message: string, index: number, filename: string } | undefined} */
|
|
this.error = undefined;
|
|
|
|
if (this.options.less !== undefined || this.options.inline) {
|
|
this.css = !this.options.less || this.options.inline;
|
|
} else {
|
|
const pathValue = this.getPath();
|
|
if (pathValue && /[#.&?]css([?;].*)?$/.test(pathValue)) {
|
|
this.css = true;
|
|
}
|
|
}
|
|
this.copyVisibilityInfo(visibilityInfo);
|
|
if (this.features) {
|
|
this.setParent(this.features, /** @type {Node} */ (this));
|
|
}
|
|
this.setParent(this.path, /** @type {Node} */ (this));
|
|
}
|
|
|
|
/** @param {TreeVisitor} visitor */
|
|
accept(visitor) {
|
|
if (this.features) {
|
|
this.features = visitor.visit(this.features);
|
|
}
|
|
this.path = visitor.visit(this.path);
|
|
if (!this.options.isPlugin && !this.options.inline && this.root) {
|
|
this.root = /** @type {Ruleset} */ (visitor.visit(this.root));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
if (this.css && this.path._fileInfo.reference === undefined) {
|
|
output.add('@import ', this._fileInfo, this._index);
|
|
this.path.genCSS(context, output);
|
|
if (this.features) {
|
|
output.add(' ');
|
|
this.features.genCSS(context, output);
|
|
}
|
|
output.add(';');
|
|
}
|
|
}
|
|
|
|
/** @returns {string | undefined} */
|
|
getPath() {
|
|
return (this.path instanceof URL) ?
|
|
/** @type {string} */ (/** @type {Node} */ (this.path.value).value) :
|
|
/** @type {string | undefined} */ (this.path.value);
|
|
}
|
|
|
|
/** @returns {boolean | RegExpMatchArray | null} */
|
|
isVariableImport() {
|
|
let path = this.path;
|
|
if (path instanceof URL) {
|
|
path = /** @type {Node} */ (path.value);
|
|
}
|
|
if (path instanceof Quoted) {
|
|
return path.containsVariables();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/** @param {EvalContext} context */
|
|
evalForImport(context) {
|
|
let path = this.path;
|
|
|
|
if (path instanceof URL) {
|
|
path = /** @type {Node} */ (path.value);
|
|
}
|
|
|
|
return new Import(path.eval(context), this.features, this.options, this._index || 0, this._fileInfo, this.visibilityInfo());
|
|
}
|
|
|
|
/** @param {EvalContext} context */
|
|
evalPath(context) {
|
|
const path = this.path.eval(context);
|
|
const fileInfo = this._fileInfo;
|
|
|
|
if (!(path instanceof URL)) {
|
|
// Add the rootpath if the URL requires a rewrite
|
|
const pathValue = /** @type {string} */ (path.value);
|
|
if (fileInfo &&
|
|
pathValue &&
|
|
context.pathRequiresRewrite(pathValue)) {
|
|
path.value = context.rewritePath(pathValue, fileInfo.rootpath);
|
|
} else {
|
|
path.value = context.normalizePath(/** @type {string} */ (path.value));
|
|
}
|
|
}
|
|
|
|
return path;
|
|
}
|
|
|
|
/** @param {EvalContext} context */
|
|
// @ts-ignore - Import.eval returns Node | Node[] | Import (wider than Node.eval's Node return)
|
|
eval(context) {
|
|
const result = this.doEval(context);
|
|
if (this.options.reference || this.blocksVisibility()) {
|
|
if (Array.isArray(result)) {
|
|
result.forEach(function (node) {
|
|
node.addVisibilityBlock();
|
|
});
|
|
} else {
|
|
/** @type {Node} */ (result).addVisibilityBlock();
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/** @param {EvalContext} context */
|
|
doEval(context) {
|
|
/** @type {Ruleset | undefined} */
|
|
let ruleset;
|
|
const features = this.features && this.features.eval(context);
|
|
|
|
if (this.options.isPlugin) {
|
|
if (this.root && this.root.eval) {
|
|
try {
|
|
this.root.eval(context);
|
|
}
|
|
catch (e) {
|
|
const err = /** @type {{ message: string }} */ (e);
|
|
err.message = 'Plugin error during evaluation';
|
|
throw new LessError(
|
|
/** @type {{ message: string, index?: number, filename?: string }} */ (e),
|
|
/** @type {{ imports: object }} */ (/** @type {unknown} */ (this.root)).imports,
|
|
/** @type {{ filename: string }} */ (/** @type {unknown} */ (this.root)).filename
|
|
);
|
|
}
|
|
}
|
|
const frame0 = /** @type {Ruleset & { functionRegistry?: { addMultiple: (fns: object) => void } }} */ (context.frames[0]);
|
|
const registry = frame0 && frame0.functionRegistry;
|
|
if (registry && this.root && this.root.functions) {
|
|
registry.addMultiple(this.root.functions);
|
|
}
|
|
|
|
return [];
|
|
}
|
|
|
|
if (this.skip) {
|
|
if (typeof this.skip === 'function') {
|
|
this.skip = this.skip();
|
|
}
|
|
if (this.skip) {
|
|
return [];
|
|
}
|
|
}
|
|
if (this.features) {
|
|
let featureValue = /** @type {Node[]} */ (this.features.value);
|
|
if (Array.isArray(featureValue) && featureValue.length >= 1) {
|
|
const expr = featureValue[0];
|
|
if (expr.type === 'Expression' && Array.isArray(expr.value) && /** @type {Node[]} */ (expr.value).length >= 2) {
|
|
featureValue = /** @type {Node[]} */ (expr.value);
|
|
const isLayer = featureValue[0].type === 'Keyword' && featureValue[0].value === 'layer'
|
|
&& featureValue[1].type === 'Paren';
|
|
if (isLayer) {
|
|
this.css = false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (this.options.inline) {
|
|
const contents = new Anonymous(
|
|
/** @type {string} */ (/** @type {unknown} */ (this.root)),
|
|
0,
|
|
{
|
|
filename: this.importedFilename,
|
|
reference: this.path._fileInfo && this.path._fileInfo.reference
|
|
},
|
|
true,
|
|
true
|
|
);
|
|
|
|
return this.features ? new Media([contents], /** @type {Node[]} */ (this.features.value)) : [contents];
|
|
} else if (this.css || this.layerCss) {
|
|
const newImport = new Import(this.evalPath(context), features, this.options, this._index || 0);
|
|
if (this.layerCss) {
|
|
newImport.css = this.layerCss;
|
|
newImport.path._fileInfo = this._fileInfo;
|
|
}
|
|
if (!newImport.css && this.error) {
|
|
throw this.error;
|
|
}
|
|
return newImport;
|
|
} else if (this.root) {
|
|
if (this.features) {
|
|
let featureValue = /** @type {Node[]} */ (this.features.value);
|
|
if (Array.isArray(featureValue) && featureValue.length === 1) {
|
|
const expr = featureValue[0];
|
|
if (expr.type === 'Expression' && Array.isArray(expr.value) && /** @type {Node[]} */ (expr.value).length >= 2) {
|
|
featureValue = /** @type {Node[]} */ (expr.value);
|
|
const isLayer = featureValue[0].type === 'Keyword' && featureValue[0].value === 'layer'
|
|
&& featureValue[1].type === 'Paren';
|
|
if (isLayer) {
|
|
this.layerCss = true;
|
|
featureValue[0] = new Expression(/** @type {Node[]} */ (featureValue.slice(0, 2)));
|
|
featureValue.splice(1, 1);
|
|
/** @type {Expression} */ (featureValue[0]).noSpacing = true;
|
|
return this;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
ruleset = new Ruleset(null, copyArray(this.root.rules));
|
|
ruleset.evalImports(context);
|
|
|
|
return this.features ? new Media(ruleset.rules, /** @type {Node[]} */ (this.features.value)) : ruleset.rules;
|
|
} else {
|
|
if (this.features) {
|
|
let featureValue = /** @type {Node[]} */ (this.features.value);
|
|
if (Array.isArray(featureValue) && featureValue.length >= 1) {
|
|
featureValue = /** @type {Node[]} */ (featureValue[0].value);
|
|
if (Array.isArray(featureValue) && featureValue.length >= 2) {
|
|
const isLayer = featureValue[0].type === 'Keyword' && featureValue[0].value === 'layer'
|
|
&& featureValue[1].type === 'Paren';
|
|
if (isLayer) {
|
|
this.css = true;
|
|
featureValue[0] = new Expression(/** @type {Node[]} */ (featureValue.slice(0, 2)));
|
|
featureValue.splice(1, 1);
|
|
/** @type {Expression} */ (featureValue[0]).noSpacing = true;
|
|
return this;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return [];
|
|
}
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class JsEvalNode extends Node {
|
|
/**
|
|
* @param {string} expression
|
|
* @param {EvalContext} context
|
|
* @returns {string | number | boolean}
|
|
*/
|
|
evaluateJavaScript(expression, context) {
|
|
let result;
|
|
const that = this;
|
|
/** @type {Record<string, { value: Node, toJS: () => string }>} */
|
|
const evalContext = {};
|
|
|
|
if (!context.javascriptEnabled) {
|
|
throw { message: 'Inline JavaScript is not enabled. Is it set in your options?',
|
|
filename: this.fileInfo().filename,
|
|
index: this.getIndex() };
|
|
}
|
|
|
|
expression = expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
|
|
return that.jsify(new Variable(`@${name}`, that.getIndex(), that.fileInfo()).eval(context));
|
|
});
|
|
|
|
/** @type {Function} */
|
|
let expressionFunc;
|
|
try {
|
|
expressionFunc = new Function(`return (${expression})`);
|
|
} catch (e) {
|
|
throw { message: `JavaScript evaluation error: ${/** @type {Error} */ (e).message} from \`${expression}\`` ,
|
|
filename: this.fileInfo().filename,
|
|
index: this.getIndex() };
|
|
}
|
|
|
|
const variables = /** @type {Node & { variables: () => Record<string, { value: Node }> }} */ (context.frames[0]).variables();
|
|
for (const k in variables) {
|
|
// eslint-disable-next-line no-prototype-builtins
|
|
if (variables.hasOwnProperty(k)) {
|
|
evalContext[k.slice(1)] = {
|
|
value: variables[k].value,
|
|
toJS: function () {
|
|
return this.value.eval(context).toCSS(context);
|
|
}
|
|
};
|
|
}
|
|
}
|
|
|
|
try {
|
|
result = expressionFunc.call(evalContext);
|
|
} catch (e) {
|
|
throw { message: `JavaScript evaluation error: '${/** @type {Error} */ (e).name}: ${/** @type {Error} */ (e).message.replace(/["]/g, '\'')}'` ,
|
|
filename: this.fileInfo().filename,
|
|
index: this.getIndex() };
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* @param {Node} obj
|
|
* @returns {string}
|
|
*/
|
|
jsify(obj) {
|
|
if (Array.isArray(obj.value) && (obj.value.length > 1)) {
|
|
return `[${obj.value.map(function (v) { return v.toCSS(/** @type {EvalContext} */ (undefined)); }).join(', ')}]`;
|
|
} else {
|
|
return obj.toCSS(/** @type {EvalContext} */ (undefined));
|
|
}
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class JavaScript extends JsEvalNode {
|
|
get type() { return 'JavaScript'; }
|
|
|
|
/**
|
|
* @param {string} string
|
|
* @param {boolean} escaped
|
|
* @param {number} index
|
|
* @param {FileInfo} currentFileInfo
|
|
*/
|
|
constructor(string, escaped, index, currentFileInfo) {
|
|
super();
|
|
this.escaped = escaped;
|
|
this.expression = string;
|
|
this._index = index;
|
|
this._fileInfo = currentFileInfo;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {Dimension | Quoted | Anonymous}
|
|
*/
|
|
eval(context) {
|
|
const result = this.evaluateJavaScript(this.expression, context);
|
|
const type = typeof result;
|
|
|
|
if (type === 'number' && !isNaN(/** @type {number} */ (result))) {
|
|
return new Dimension(/** @type {number} */ (result));
|
|
} else if (type === 'string') {
|
|
return new Quoted(`"${result}"`, /** @type {string} */ (result), this.escaped, this._index);
|
|
} else if (Array.isArray(result)) {
|
|
return new Anonymous(/** @type {string[]} */ (result).join(', '));
|
|
} else {
|
|
return new Anonymous(/** @type {string} */ (result));
|
|
}
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class Assignment extends Node {
|
|
get type() { return 'Assignment'; }
|
|
|
|
/**
|
|
* @param {string} key
|
|
* @param {Node} val
|
|
*/
|
|
constructor(key, val) {
|
|
super();
|
|
this.key = key;
|
|
this.value = val;
|
|
}
|
|
|
|
/** @param {TreeVisitor} visitor */
|
|
accept(visitor) {
|
|
this.value = visitor.visit(/** @type {Node} */ (this.value));
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {Assignment}
|
|
*/
|
|
eval(context) {
|
|
if (/** @type {Node} */ (this.value).eval) {
|
|
return new Assignment(this.key, /** @type {Node} */ (this.value).eval(context));
|
|
}
|
|
return this;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
output.add(`${this.key}=`);
|
|
if (/** @type {Node} */ (this.value).genCSS) {
|
|
/** @type {Node} */ (this.value).genCSS(context, output);
|
|
} else {
|
|
output.add(/** @type {string} */ (/** @type {unknown} */ (this.value)));
|
|
}
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class Condition extends Node {
|
|
get type() { return 'Condition'; }
|
|
|
|
/**
|
|
* @param {string} op
|
|
* @param {Node} l
|
|
* @param {Node} r
|
|
* @param {number} i
|
|
* @param {boolean} negate
|
|
*/
|
|
constructor(op, l, r, i, negate) {
|
|
super();
|
|
this.op = op.trim();
|
|
this.lvalue = l;
|
|
this.rvalue = r;
|
|
this._index = i;
|
|
this.negate = negate;
|
|
}
|
|
|
|
/** @param {TreeVisitor} visitor */
|
|
accept(visitor) {
|
|
this.lvalue = visitor.visit(this.lvalue);
|
|
this.rvalue = visitor.visit(this.rvalue);
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {boolean}
|
|
* @suppress {checkTypes}
|
|
*/
|
|
// @ts-ignore - Condition.eval returns boolean, not Node (used as guard condition)
|
|
eval(context) {
|
|
const a = this.lvalue.eval(context);
|
|
const b = this.rvalue.eval(context);
|
|
/** @type {boolean} */
|
|
let result;
|
|
|
|
switch (this.op) {
|
|
case 'and': result = Boolean(a && b); break;
|
|
case 'or': result = Boolean(a || b); break;
|
|
default:
|
|
switch (Node.compare(a, b)) {
|
|
case -1:
|
|
result = this.op === '<' || this.op === '=<' || this.op === '<=';
|
|
break;
|
|
case 0:
|
|
result = this.op === '=' || this.op === '>=' || this.op === '=<' || this.op === '<=';
|
|
break;
|
|
case 1:
|
|
result = this.op === '>' || this.op === '>=';
|
|
break;
|
|
default:
|
|
result = false;
|
|
}
|
|
}
|
|
|
|
return this.negate ? !result : result;
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class QueryInParens extends Node {
|
|
get type() { return 'QueryInParens'; }
|
|
|
|
/**
|
|
* @param {string} op
|
|
* @param {Node} l
|
|
* @param {Node} m
|
|
* @param {string | null} op2
|
|
* @param {Node | null} r
|
|
* @param {number} i
|
|
*/
|
|
constructor(op, l, m, op2, r, i) {
|
|
super();
|
|
this.op = op.trim();
|
|
this.lvalue = l;
|
|
this.mvalue = m;
|
|
this.op2 = op2 ? op2.trim() : null;
|
|
/** @type {Node | null} */
|
|
this.rvalue = r;
|
|
this._index = i;
|
|
}
|
|
|
|
/** @param {TreeVisitor} visitor */
|
|
accept(visitor) {
|
|
this.lvalue = visitor.visit(this.lvalue);
|
|
this.mvalue = visitor.visit(this.mvalue);
|
|
if (this.rvalue) {
|
|
this.rvalue = visitor.visit(this.rvalue);
|
|
}
|
|
}
|
|
|
|
/** @param {EvalContext} context */
|
|
eval(context) {
|
|
const node = new QueryInParens(
|
|
this.op,
|
|
this.lvalue.eval(context),
|
|
this.mvalue.eval(context),
|
|
this.op2,
|
|
this.rvalue ? this.rvalue.eval(context) : null,
|
|
this._index || 0
|
|
);
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
this.lvalue.genCSS(context, output);
|
|
output.add(' ' + this.op + ' ');
|
|
this.mvalue.genCSS(context, output);
|
|
if (this.rvalue) {
|
|
output.add(' ' + this.op2 + ' ');
|
|
this.rvalue.genCSS(context, output);
|
|
}
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
/**
|
|
* @typedef {Ruleset & {
|
|
* allowImports?: boolean,
|
|
* debugInfo?: { lineNumber: number, fileName: string },
|
|
* functionRegistry?: FunctionRegistry
|
|
* }} RulesetWithExtras
|
|
*/
|
|
|
|
class Container extends AtRule {
|
|
get type() { return 'Container'; }
|
|
|
|
/**
|
|
* @param {Node[] | null} value
|
|
* @param {Node[]} features
|
|
* @param {number} index
|
|
* @param {FileInfo} currentFileInfo
|
|
* @param {VisibilityInfo} visibilityInfo
|
|
*/
|
|
constructor(value, features, index, currentFileInfo, visibilityInfo) {
|
|
super();
|
|
this._index = index;
|
|
this._fileInfo = currentFileInfo;
|
|
|
|
const selectors = (new Selector([], null, null, this._index, this._fileInfo)).createEmptySelectors();
|
|
|
|
/** @type {Value} */
|
|
this.features = new Value(features);
|
|
/** @type {RulesetWithExtras[]} */
|
|
this.rules = [new Ruleset(selectors, value)];
|
|
this.rules[0].allowImports = true;
|
|
this.copyVisibilityInfo(visibilityInfo);
|
|
this.allowRoot = true;
|
|
this.setParent(selectors, /** @type {Node} */ (/** @type {unknown} */ (this)));
|
|
this.setParent(this.features, /** @type {Node} */ (/** @type {unknown} */ (this)));
|
|
this.setParent(this.rules, /** @type {Node} */ (/** @type {unknown} */ (this)));
|
|
|
|
/** @type {boolean | undefined} */
|
|
this._evaluated = undefined;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
output.add('@container ', this._fileInfo, this._index);
|
|
this.features.genCSS(context, output);
|
|
this.outputRuleset(context, output, this.rules);
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {Node}
|
|
*/
|
|
eval(context) {
|
|
if (this._evaluated) {
|
|
return /** @type {Node} */ (/** @type {unknown} */ (this));
|
|
}
|
|
if (!context.mediaBlocks) {
|
|
context.mediaBlocks = [];
|
|
context.mediaPath = [];
|
|
}
|
|
|
|
const media = new Container(null, [], this._index, this._fileInfo, this.visibilityInfo());
|
|
media._evaluated = true;
|
|
if (this.debugInfo) {
|
|
this.rules[0].debugInfo = this.debugInfo;
|
|
media.debugInfo = this.debugInfo;
|
|
}
|
|
|
|
media.features = /** @type {Value} */ (this.features.eval(context));
|
|
|
|
context.mediaPath.push(/** @type {Node} */ (/** @type {unknown} */ (media)));
|
|
context.mediaBlocks.push(/** @type {Node} */ (/** @type {unknown} */ (media)));
|
|
|
|
const fr = /** @type {RulesetWithExtras} */ (context.frames[0]).functionRegistry;
|
|
if (fr) {
|
|
this.rules[0].functionRegistry = fr.inherit();
|
|
}
|
|
context.frames.unshift(this.rules[0]);
|
|
media.rules = [/** @type {RulesetWithExtras} */ (this.rules[0].eval(context))];
|
|
context.frames.shift();
|
|
|
|
context.mediaPath.pop();
|
|
|
|
return context.mediaPath.length === 0 ? /** @type {NestableAtRuleThis} */ (/** @type {unknown} */ (media)).evalTop(context) :
|
|
/** @type {NestableAtRuleThis} */ (/** @type {unknown} */ (media)).evalNested(context);
|
|
}
|
|
}
|
|
|
|
// Apply NestableAtRulePrototype methods (accept, isRulesetLike override AtRule's versions)
|
|
Object.assign(Container.prototype, NestableAtRulePrototype);
|
|
|
|
// @ts-check
|
|
|
|
class UnicodeDescriptor extends Node {
|
|
get type() { return 'UnicodeDescriptor'; }
|
|
|
|
/** @param {string} value */
|
|
constructor(value) {
|
|
super();
|
|
this.value = value;
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class Negative extends Node {
|
|
get type() { return 'Negative'; }
|
|
|
|
/** @param {Node} node */
|
|
constructor(node) {
|
|
super();
|
|
this.value = node;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {CSSOutput} output
|
|
*/
|
|
genCSS(context, output) {
|
|
output.add('-');
|
|
/** @type {Node} */ (this.value).genCSS(context, output);
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {Node}
|
|
*/
|
|
eval(context) {
|
|
if (context.isMathOn('*')) {
|
|
return (new Operation('*', [new Dimension(-1), /** @type {Node} */ (this.value)], false)).eval(context);
|
|
}
|
|
return new Negative(/** @type {Node} */ (this.value).eval(context));
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class Extend extends Node {
|
|
get type() { return 'Extend'; }
|
|
|
|
/**
|
|
* @param {Selector} selector
|
|
* @param {string} option
|
|
* @param {number} index
|
|
* @param {FileInfo} currentFileInfo
|
|
* @param {VisibilityInfo} [visibilityInfo]
|
|
*/
|
|
constructor(selector, option, index, currentFileInfo, visibilityInfo) {
|
|
super();
|
|
this.selector = selector;
|
|
this.option = option;
|
|
this.object_id = Extend.next_id++;
|
|
/** @type {number[]} */
|
|
this.parent_ids = [this.object_id];
|
|
this._index = index;
|
|
this._fileInfo = currentFileInfo;
|
|
this.copyVisibilityInfo(visibilityInfo);
|
|
/** @type {boolean} */
|
|
this.allowRoot = true;
|
|
/** @type {boolean} */
|
|
this.allowBefore = false;
|
|
/** @type {boolean} */
|
|
this.allowAfter = false;
|
|
|
|
switch (option) {
|
|
case '!all':
|
|
case 'all':
|
|
this.allowBefore = true;
|
|
this.allowAfter = true;
|
|
break;
|
|
default:
|
|
this.allowBefore = false;
|
|
this.allowAfter = false;
|
|
break;
|
|
}
|
|
this.setParent(this.selector, this);
|
|
}
|
|
|
|
/** @param {TreeVisitor} visitor */
|
|
accept(visitor) {
|
|
this.selector = /** @type {Selector} */ (visitor.visit(this.selector));
|
|
}
|
|
|
|
/** @param {EvalContext} context */
|
|
eval(context) {
|
|
return new Extend(/** @type {Selector} */ (this.selector.eval(context)), this.option, this.getIndex(), this.fileInfo(), this.visibilityInfo());
|
|
}
|
|
|
|
// remove when Nodes have JSDoc types
|
|
// eslint-disable-next-line no-unused-vars
|
|
/** @param {EvalContext} [context] */
|
|
clone(context) {
|
|
return new Extend(this.selector, this.option, this.getIndex(), this.fileInfo(), this.visibilityInfo());
|
|
}
|
|
|
|
// it concatenates (joins) all selectors in selector array
|
|
/** @param {Selector[]} selectors */
|
|
findSelfSelectors(selectors) {
|
|
/** @type {import('./element.js').default[]} */
|
|
let selfElements = [];
|
|
let i, selectorElements;
|
|
|
|
for (i = 0; i < selectors.length; i++) {
|
|
selectorElements = selectors[i].elements;
|
|
// duplicate the logic in genCSS function inside the selector node.
|
|
// future TODO - move both logics into the selector joiner visitor
|
|
if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === '') {
|
|
selectorElements[0].combinator.value = ' ';
|
|
}
|
|
selfElements = selfElements.concat(selectors[i].elements);
|
|
}
|
|
|
|
/** @type {Selector[]} */
|
|
this.selfSelectors = [new Selector(selfElements)];
|
|
this.selfSelectors[0].copyVisibilityInfo(this.visibilityInfo());
|
|
}
|
|
}
|
|
|
|
Extend.next_id = 0;
|
|
|
|
// @ts-check
|
|
|
|
class VariableCall extends Node {
|
|
get type() { return 'VariableCall'; }
|
|
|
|
/**
|
|
* @param {string} variable
|
|
* @param {number} index
|
|
* @param {FileInfo} currentFileInfo
|
|
*/
|
|
constructor(variable, index, currentFileInfo) {
|
|
super();
|
|
this.variable = variable;
|
|
this._index = index;
|
|
this._fileInfo = currentFileInfo;
|
|
this.allowRoot = true;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {Node}
|
|
*/
|
|
eval(context) {
|
|
let rules;
|
|
/** @type {DetachedRuleset | Node} */
|
|
let detachedRuleset = new Variable(this.variable, this.getIndex(), this.fileInfo()).eval(context);
|
|
const error = new LessError({message: `Could not evaluate variable call ${this.variable}`});
|
|
|
|
if (!(/** @type {DetachedRuleset} */ (detachedRuleset)).ruleset) {
|
|
const dr = /** @type {Node & { rules?: Node[] }} */ (detachedRuleset);
|
|
if (dr.rules) {
|
|
rules = detachedRuleset;
|
|
}
|
|
else if (Array.isArray(detachedRuleset)) {
|
|
rules = new Ruleset(null, detachedRuleset);
|
|
}
|
|
else if (Array.isArray(detachedRuleset.value)) {
|
|
rules = new Ruleset(null, detachedRuleset.value);
|
|
}
|
|
else {
|
|
throw error;
|
|
}
|
|
detachedRuleset = new DetachedRuleset(rules);
|
|
}
|
|
|
|
const dr = /** @type {DetachedRuleset} */ (detachedRuleset);
|
|
if (dr.ruleset) {
|
|
return dr.callEval(context);
|
|
}
|
|
throw error;
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
class NamespaceValue extends Node {
|
|
get type() { return 'NamespaceValue'; }
|
|
|
|
/**
|
|
* @param {Node} ruleCall
|
|
* @param {string[]} lookups
|
|
* @param {number} index
|
|
* @param {FileInfo} fileInfo
|
|
*/
|
|
constructor(ruleCall, lookups, index, fileInfo) {
|
|
super();
|
|
this.value = ruleCall;
|
|
this.lookups = lookups;
|
|
this._index = index;
|
|
this._fileInfo = fileInfo;
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {Node}
|
|
*/
|
|
eval(context) {
|
|
let i, name;
|
|
/** @type {Ruleset | Node | Node[]} */
|
|
let rules = this.value.eval(context);
|
|
|
|
for (i = 0; i < this.lookups.length; i++) {
|
|
name = this.lookups[i];
|
|
|
|
if (Array.isArray(rules)) {
|
|
rules = new Ruleset([new Selector()], rules);
|
|
}
|
|
|
|
const rs = /** @type {Ruleset} */ (rules);
|
|
|
|
if (name === '') {
|
|
rules = rs.lastDeclaration();
|
|
}
|
|
else if (name.charAt(0) === '@') {
|
|
if (name.charAt(1) === '@') {
|
|
name = `@${new Variable(name.slice(1)).eval(context).value}`;
|
|
}
|
|
if (rs.variables) {
|
|
rules = rs.variable(name);
|
|
}
|
|
|
|
if (!rules) {
|
|
throw { type: 'Name',
|
|
message: `variable ${name} not found`,
|
|
filename: this.fileInfo().filename,
|
|
index: this.getIndex() };
|
|
}
|
|
}
|
|
else {
|
|
if (name.substring(0, 2) === '$@') {
|
|
name = `$${new Variable(name.slice(1)).eval(context).value}`;
|
|
}
|
|
else {
|
|
name = name.charAt(0) === '$' ? name : `$${name}`;
|
|
}
|
|
if (rs.properties) {
|
|
rules = rs.property(name);
|
|
}
|
|
|
|
if (!rules) {
|
|
throw { type: 'Name',
|
|
message: `property "${name.slice(1)}" not found`,
|
|
filename: this.fileInfo().filename,
|
|
index: this.getIndex() };
|
|
}
|
|
const rulesArr = /** @type {Node[]} */ (rules);
|
|
rules = rulesArr[rulesArr.length - 1];
|
|
}
|
|
|
|
const current = /** @type {Node} */ (rules);
|
|
if (current.value) {
|
|
rules = /** @type {Node} */ (current.eval(context).value);
|
|
}
|
|
const currentNode = /** @type {Node & { ruleset?: Node }} */ (rules);
|
|
if (currentNode.ruleset) {
|
|
rules = currentNode.ruleset.eval(context);
|
|
}
|
|
}
|
|
return /** @type {Node} */ (rules);
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
/**
|
|
* @typedef {object} MixinParam
|
|
* @property {string} [name]
|
|
* @property {Node} [value]
|
|
* @property {boolean} [variadic]
|
|
*/
|
|
|
|
/**
|
|
* @typedef {Ruleset & {
|
|
* functionRegistry?: FunctionRegistry,
|
|
* originalRuleset?: Node
|
|
* }} RulesetWithRegistry
|
|
*/
|
|
|
|
class Definition extends Ruleset {
|
|
get type() { return 'MixinDefinition'; }
|
|
|
|
/**
|
|
* @param {string | undefined} name
|
|
* @param {MixinParam[]} params
|
|
* @param {Node[]} rules
|
|
* @param {Node | null} [condition]
|
|
* @param {boolean} [variadic]
|
|
* @param {Node[] | null} [frames]
|
|
* @param {VisibilityInfo} [visibilityInfo]
|
|
*/
|
|
constructor(name, params, rules, condition, variadic, frames, visibilityInfo) {
|
|
super(null, null);
|
|
/** @type {string} */
|
|
this.name = name || 'anonymous mixin';
|
|
this.selectors = [new Selector([new Element(null, name, false, this._index, this._fileInfo)])];
|
|
/** @type {MixinParam[]} */
|
|
this.params = params;
|
|
/** @type {Node | null | undefined} */
|
|
this.condition = condition;
|
|
/** @type {boolean | undefined} */
|
|
this.variadic = variadic;
|
|
/** @type {number} */
|
|
this.arity = params.length;
|
|
this.rules = rules;
|
|
this._lookups = {};
|
|
/** @type {string[]} */
|
|
const optionalParameters = [];
|
|
/** @type {number} */
|
|
this.required = params.reduce(function (/** @type {number} */ count, /** @type {MixinParam} */ p) {
|
|
if (!p.name || (p.name && !p.value)) {
|
|
return count + 1;
|
|
}
|
|
else {
|
|
optionalParameters.push(p.name);
|
|
return count;
|
|
}
|
|
}, 0);
|
|
/** @type {string[]} */
|
|
this.optionalParameters = optionalParameters;
|
|
/** @type {Node[] | null | undefined} */
|
|
this.frames = frames;
|
|
this.copyVisibilityInfo(visibilityInfo);
|
|
this.allowRoot = true;
|
|
/** @type {boolean} */
|
|
this.evalFirst = true;
|
|
}
|
|
|
|
/** @param {TreeVisitor} visitor */
|
|
accept(visitor) {
|
|
if (this.params && this.params.length) {
|
|
this.params = /** @type {MixinParam[]} */ (/** @type {unknown} */ (visitor.visitArray(/** @type {Node[]} */ (/** @type {unknown} */ (this.params)))));
|
|
}
|
|
this.rules = visitor.visitArray(this.rules);
|
|
if (this.condition) {
|
|
this.condition = visitor.visit(this.condition);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {EvalContext} mixinEnv
|
|
* @param {MixinArg[] | null} args
|
|
* @param {Node[]} evaldArguments
|
|
* @returns {Ruleset}
|
|
*/
|
|
evalParams(context, mixinEnv, args, evaldArguments) {
|
|
/* jshint boss:true */
|
|
const frame = new Ruleset(null, null);
|
|
|
|
/** @type {Node[] | undefined} */
|
|
let varargs;
|
|
/** @type {MixinArg | undefined} */
|
|
let arg;
|
|
const params = /** @type {MixinParam[]} */ (copyArray(this.params));
|
|
/** @type {number} */
|
|
let i;
|
|
/** @type {number} */
|
|
let j;
|
|
/** @type {Node | undefined} */
|
|
let val;
|
|
/** @type {string | undefined} */
|
|
let name;
|
|
/** @type {boolean} */
|
|
let isNamedFound;
|
|
/** @type {number} */
|
|
let argIndex;
|
|
let argsLength = 0;
|
|
|
|
if (mixinEnv.frames && mixinEnv.frames[0] && /** @type {RulesetWithRegistry} */ (mixinEnv.frames[0]).functionRegistry) {
|
|
/** @type {RulesetWithRegistry} */ (frame).functionRegistry = /** @type {FunctionRegistry} */ (/** @type {RulesetWithRegistry} */ (mixinEnv.frames[0]).functionRegistry).inherit();
|
|
}
|
|
mixinEnv = new contexts.Eval(mixinEnv, /** @type {Node[]} */ ([frame]).concat(/** @type {Node[]} */ (mixinEnv.frames)));
|
|
|
|
if (args) {
|
|
args = /** @type {MixinArg[]} */ (copyArray(args));
|
|
argsLength = args.length;
|
|
|
|
for (i = 0; i < argsLength; i++) {
|
|
arg = args[i];
|
|
if (name = (arg && arg.name)) {
|
|
isNamedFound = false;
|
|
for (j = 0; j < params.length; j++) {
|
|
if (!evaldArguments[j] && name === params[j].name) {
|
|
evaldArguments[j] = arg.value.eval(context);
|
|
frame.prependRule(new Declaration(name, arg.value.eval(context)));
|
|
isNamedFound = true;
|
|
break;
|
|
}
|
|
}
|
|
if (isNamedFound) {
|
|
args.splice(i, 1);
|
|
i--;
|
|
continue;
|
|
} else {
|
|
throw { type: 'Runtime', message: `Named argument for ${this.name} ${args[i].name} not found` };
|
|
}
|
|
}
|
|
}
|
|
}
|
|
argIndex = 0;
|
|
for (i = 0; i < params.length; i++) {
|
|
if (evaldArguments[i]) { continue; }
|
|
|
|
arg = args && args[argIndex];
|
|
|
|
if (name = params[i].name) {
|
|
if (params[i].variadic) {
|
|
varargs = [];
|
|
for (j = argIndex; j < argsLength; j++) {
|
|
varargs.push(/** @type {MixinArg[]} */ (args)[j].value.eval(context));
|
|
}
|
|
frame.prependRule(new Declaration(name, new Expression(varargs).eval(context)));
|
|
} else {
|
|
val = arg && arg.value;
|
|
if (val) {
|
|
// This was a mixin call, pass in a detached ruleset of it's eval'd rules
|
|
if (Array.isArray(val)) {
|
|
val = /** @type {Node} */ (/** @type {unknown} */ (new DetachedRuleset(new Ruleset(null, /** @type {Node[]} */ (val)))));
|
|
}
|
|
else {
|
|
val = val.eval(context);
|
|
}
|
|
} else if (params[i].value) {
|
|
val = /** @type {Node} */ (params[i].value).eval(mixinEnv);
|
|
frame.resetCache();
|
|
} else {
|
|
throw { type: 'Runtime', message: `wrong number of arguments for ${this.name} (${argsLength} for ${this.arity})` };
|
|
}
|
|
|
|
frame.prependRule(new Declaration(name, val));
|
|
evaldArguments[i] = val;
|
|
}
|
|
}
|
|
|
|
if (params[i].variadic && args) {
|
|
for (j = argIndex; j < argsLength; j++) {
|
|
evaldArguments[j] = args[j].value.eval(context);
|
|
}
|
|
}
|
|
argIndex++;
|
|
}
|
|
|
|
return frame;
|
|
}
|
|
|
|
/** @returns {Ruleset} */
|
|
makeImportant() {
|
|
const rules = !this.rules ? this.rules : this.rules.map(function (/** @type {Node & { makeImportant?: (important?: boolean) => Node }} */ r) {
|
|
if (r.makeImportant) {
|
|
return r.makeImportant(true);
|
|
} else {
|
|
return r;
|
|
}
|
|
});
|
|
const result = new Definition(this.name, this.params, rules, this.condition, this.variadic, this.frames);
|
|
return /** @type {Ruleset} */ (/** @type {unknown} */ (result));
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {Definition}
|
|
*/
|
|
eval(context) {
|
|
return new Definition(this.name, this.params, this.rules, this.condition, this.variadic, this.frames || copyArray(context.frames));
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @param {MixinArg[]} args
|
|
* @param {string | undefined} important
|
|
* @returns {Ruleset}
|
|
*/
|
|
evalCall(context, args, important) {
|
|
/** @type {Node[]} */
|
|
const _arguments = [];
|
|
const mixinFrames = this.frames ? /** @type {Node[]} */ (this.frames).concat(/** @type {Node[]} */ (context.frames)) : /** @type {Node[]} */ (context.frames);
|
|
const frame = this.evalParams(context, new contexts.Eval(context, mixinFrames), args, _arguments);
|
|
/** @type {Node[]} */
|
|
let rules;
|
|
/** @type {Ruleset} */
|
|
let ruleset;
|
|
|
|
frame.prependRule(new Declaration('@arguments', new Expression(_arguments).eval(context)));
|
|
|
|
rules = copyArray(this.rules);
|
|
|
|
ruleset = new Ruleset(null, rules);
|
|
/** @type {RulesetWithRegistry} */ (ruleset).originalRuleset = this;
|
|
ruleset = /** @type {Ruleset} */ (ruleset.eval(new contexts.Eval(context, /** @type {Node[]} */ ([this, frame]).concat(mixinFrames))));
|
|
if (important) {
|
|
ruleset = /** @type {Ruleset} */ (ruleset.makeImportant());
|
|
}
|
|
return ruleset;
|
|
}
|
|
|
|
/**
|
|
* @param {MixinArg[] | null} args
|
|
* @param {EvalContext} context
|
|
* @returns {boolean}
|
|
*/
|
|
matchCondition(args, context) {
|
|
if (this.condition && !this.condition.eval(
|
|
new contexts.Eval(context,
|
|
/** @type {Node[]} */ ([this.evalParams(context, /* the parameter variables */
|
|
new contexts.Eval(context, this.frames ? /** @type {Node[]} */ (this.frames).concat(/** @type {Node[]} */ (context.frames)) : context.frames), args, [])])
|
|
.concat(/** @type {Node[]} */ (this.frames || [])) // the parent namespace/mixin frames
|
|
.concat(/** @type {Node[]} */ (context.frames))))) { // the current environment frames
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @param {MixinArg[] | null} args
|
|
* @param {EvalContext} [context]
|
|
* @returns {boolean}
|
|
*/
|
|
matchArgs(args, context) {
|
|
const allArgsCnt = (args && args.length) || 0;
|
|
let len;
|
|
const optionalParameters = this.optionalParameters;
|
|
const requiredArgsCnt = !args ? 0 : args.reduce(function (/** @type {number} */ count, /** @type {MixinArg} */ p) {
|
|
if (optionalParameters.indexOf(p.name) < 0) {
|
|
return count + 1;
|
|
} else {
|
|
return count;
|
|
}
|
|
}, 0);
|
|
|
|
if (!this.variadic) {
|
|
if (requiredArgsCnt < this.required) {
|
|
return false;
|
|
}
|
|
if (allArgsCnt > this.params.length) {
|
|
return false;
|
|
}
|
|
} else {
|
|
if (requiredArgsCnt < (this.required - 1)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// check patterns
|
|
len = Math.min(requiredArgsCnt, this.arity);
|
|
|
|
for (let i = 0; i < len; i++) {
|
|
if (!this.params[i].name && !this.params[i].variadic) {
|
|
if (/** @type {MixinArg[]} */ (args)[i].value.eval(context).toCSS(/** @type {EvalContext} */ ({})) != /** @type {Node} */ (this.params[i].value).eval(context).toCSS(/** @type {EvalContext} */ ({}))) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
/**
|
|
* @typedef {{ name?: string, value: Node, expand?: boolean }} MixinArg
|
|
*/
|
|
|
|
/**
|
|
* @typedef {Node & {
|
|
* rules?: Node[],
|
|
* selectors?: Selector[],
|
|
* originalRuleset?: Node,
|
|
* matchArgs: (args: MixinArg[] | null, context: EvalContext) => boolean,
|
|
* matchCondition?: (args: MixinArg[] | null, context: EvalContext) => boolean,
|
|
* find: (selector: Selector, self?: Node | null, filter?: (rule: Node) => boolean) => Array<{ rule: Node & { rules?: Node[], originalRuleset?: Node, matchArgs: Function, matchCondition?: Function, evalCall?: Function }, path: Node[] }>,
|
|
* functionRegistry?: FunctionRegistry
|
|
* }} MixinSearchFrame
|
|
*/
|
|
|
|
class MixinCall extends Node {
|
|
get type() { return 'MixinCall'; }
|
|
|
|
/**
|
|
* @param {import('./element.js').default[]} elements
|
|
* @param {MixinArg[]} [args]
|
|
* @param {number} [index]
|
|
* @param {FileInfo} [currentFileInfo]
|
|
* @param {string} [important]
|
|
*/
|
|
constructor(elements, args, index, currentFileInfo, important) {
|
|
super();
|
|
/** @type {Selector} */
|
|
this.selector = new Selector(elements);
|
|
/** @type {MixinArg[]} */
|
|
this.arguments = args || [];
|
|
this._index = index;
|
|
this._fileInfo = currentFileInfo;
|
|
/** @type {string | undefined} */
|
|
this.important = important;
|
|
this.allowRoot = true;
|
|
this.setParent(this.selector, /** @type {Node} */ (/** @type {unknown} */ (this)));
|
|
}
|
|
|
|
/** @param {TreeVisitor} visitor */
|
|
accept(visitor) {
|
|
if (this.selector) {
|
|
this.selector = /** @type {Selector} */ (visitor.visit(this.selector));
|
|
}
|
|
if (this.arguments.length) {
|
|
this.arguments = /** @type {MixinArg[]} */ (/** @type {unknown} */ (visitor.visitArray(/** @type {Node[]} */ (/** @type {unknown} */ (this.arguments)))));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {EvalContext} context
|
|
* @returns {Node}
|
|
*/
|
|
eval(context) {
|
|
/** @type {{ rule: Node & { rules?: Node[], originalRuleset?: Node, matchArgs: Function, matchCondition?: Function, evalCall?: Function }, path: Node[] }[] | undefined} */
|
|
let mixins;
|
|
/** @type {Node & { rules?: Node[], originalRuleset?: Node, matchArgs: Function, matchCondition?: Function, evalCall?: Function }} */
|
|
let mixin;
|
|
/** @type {Node[]} */
|
|
let mixinPath;
|
|
/** @type {MixinArg[]} */
|
|
const args = [];
|
|
/** @type {MixinArg} */
|
|
let arg;
|
|
/** @type {Node} */
|
|
let argValue;
|
|
/** @type {Node[]} */
|
|
const rules = [];
|
|
let match = false;
|
|
/** @type {number} */
|
|
let i;
|
|
/** @type {number} */
|
|
let m;
|
|
/** @type {number} */
|
|
let f;
|
|
/** @type {boolean} */
|
|
let isRecursive;
|
|
/** @type {boolean | undefined} */
|
|
let isOneFound;
|
|
/** @type {{ mixin: Node & { rules?: Node[], originalRuleset?: Node, matchArgs: Function, matchCondition?: Function, evalCall?: Function }, group: number }[]} */
|
|
const candidates = [];
|
|
/** @type {{ mixin: Node & { rules?: Node[], originalRuleset?: Node, matchArgs: Function, matchCondition?: Function, evalCall?: Function }, group: number } | number} */
|
|
let candidate;
|
|
/** @type {boolean[]} */
|
|
const conditionResult = [];
|
|
/** @type {number | undefined} */
|
|
let defaultResult;
|
|
const defFalseEitherCase = -1;
|
|
const defNone = 0;
|
|
const defTrue = 1;
|
|
const defFalse = 2;
|
|
/** @type {number[]} */
|
|
let count;
|
|
/** @type {Node | undefined} */
|
|
let originalRuleset;
|
|
/** @type {((rule: MixinSearchFrame) => boolean) | undefined} */
|
|
let noArgumentsFilter;
|
|
|
|
this.selector = /** @type {Selector} */ (this.selector.eval(context));
|
|
|
|
/**
|
|
* @param {Node & { matchCondition?: Function }} mixin
|
|
* @param {Node[]} mixinPath
|
|
*/
|
|
function calcDefGroup(mixin, mixinPath) {
|
|
/** @type {number} */
|
|
let f;
|
|
/** @type {number} */
|
|
let p;
|
|
/** @type {Node & { matchCondition?: Function }} */
|
|
let namespace;
|
|
|
|
for (f = 0; f < 2; f++) {
|
|
conditionResult[f] = true;
|
|
defaultFunc.value(f);
|
|
for (p = 0; p < mixinPath.length && conditionResult[f]; p++) {
|
|
namespace = mixinPath[p];
|
|
if (namespace.matchCondition) {
|
|
conditionResult[f] = conditionResult[f] && namespace.matchCondition(null, context);
|
|
}
|
|
}
|
|
if (mixin.matchCondition) {
|
|
conditionResult[f] = conditionResult[f] && mixin.matchCondition(args, context);
|
|
}
|
|
}
|
|
if (conditionResult[0] || conditionResult[1]) {
|
|
if (conditionResult[0] != conditionResult[1]) {
|
|
return conditionResult[1] ?
|
|
defTrue : defFalse;
|
|
}
|
|
|
|
return defNone;
|
|
}
|
|
return defFalseEitherCase;
|
|
}
|
|
|
|
for (i = 0; i < this.arguments.length; i++) {
|
|
arg = this.arguments[i];
|
|
argValue = arg.value.eval(context);
|
|
if (arg.expand && Array.isArray(argValue.value)) {
|
|
const expandedValues = /** @type {Node[]} */ (argValue.value);
|
|
for (m = 0; m < expandedValues.length; m++) {
|
|
args.push({value: expandedValues[m]});
|
|
}
|
|
} else {
|
|
args.push({name: arg.name, value: argValue});
|
|
}
|
|
}
|
|
|
|
noArgumentsFilter = function(/** @type {MixinSearchFrame} */ rule) {return rule.matchArgs(null, context);};
|
|
|
|
for (i = 0; i < context.frames.length; i++) {
|
|
if ((mixins = /** @type {MixinSearchFrame} */ (context.frames[i]).find(this.selector, null, /** @type {(rule: Node) => boolean} */ (/** @type {unknown} */ (noArgumentsFilter)))).length > 0) {
|
|
isOneFound = true;
|
|
|
|
// To make `default()` function independent of definition order we have two "subpasses" here.
|
|
// At first we evaluate each guard *twice* (with `default() == true` and `default() == false`),
|
|
// and build candidate list with corresponding flags. Then, when we know all possible matches,
|
|
// we make a final decision.
|
|
|
|
for (m = 0; m < mixins.length; m++) {
|
|
mixin = mixins[m].rule;
|
|
mixinPath = mixins[m].path;
|
|
isRecursive = false;
|
|
for (f = 0; f < context.frames.length; f++) {
|
|
if ((!(mixin instanceof Definition)) && mixin === (/** @type {Node & { originalRuleset?: Node }} */ (context.frames[f]).originalRuleset || context.frames[f])) {
|
|
isRecursive = true;
|
|
break;
|
|
}
|
|
}
|
|
if (isRecursive) {
|
|
continue;
|
|
}
|
|
|
|
if (mixin.matchArgs(args, context)) {
|
|
candidate = {mixin, group: calcDefGroup(mixin, mixinPath)};
|
|
|
|
if (/** @type {{ mixin: Node, group: number }} */ (candidate).group !== defFalseEitherCase) {
|
|
candidates.push(/** @type {{ mixin: Node & { rules?: Node[], originalRuleset?: Node, matchArgs: Function, matchCondition?: Function, evalCall?: Function }, group: number }} */ (candidate));
|
|
}
|
|
|
|
match = true;
|
|
}
|
|
}
|
|
|
|
defaultFunc.reset();
|
|
|
|
count = [0, 0, 0];
|
|
for (m = 0; m < candidates.length; m++) {
|
|
count[candidates[m].group]++;
|
|
}
|
|
|
|
if (count[defNone] > 0) {
|
|
defaultResult = defFalse;
|
|
} else {
|
|
defaultResult = defTrue;
|
|
if ((count[defTrue] + count[defFalse]) > 1) {
|
|
throw { type: 'Runtime',
|
|
message: `Ambiguous use of \`default()\` found when matching for \`${this.format(args)}\``,
|
|
index: this.getIndex(), filename: this.fileInfo().filename };
|
|
}
|
|
}
|
|
|
|
for (m = 0; m < candidates.length; m++) {
|
|
candidate = candidates[m].group;
|
|
if ((candidate === defNone) || (candidate === defaultResult)) {
|
|
try {
|
|
mixin = candidates[m].mixin;
|
|
if (!(mixin instanceof Definition)) {
|
|
originalRuleset = /** @type {Node & { originalRuleset?: Node }} */ (mixin).originalRuleset || mixin;
|
|
mixin = new Definition('', [], mixin.rules, null, false, null, originalRuleset.visibilityInfo());
|
|
/** @type {Node & { originalRuleset?: Node }} */ (mixin).originalRuleset = originalRuleset;
|
|
}
|
|
const newRules = /** @type {MixinDefinition} */ (mixin).evalCall(context, args, this.important).rules;
|
|
this._setVisibilityToReplacement(newRules);
|
|
Array.prototype.push.apply(rules, newRules);
|
|
} catch (e) {
|
|
throw { .../** @type {object} */ (e), index: this.getIndex(), filename: this.fileInfo().filename };
|
|
}
|
|
}
|
|
}
|
|
|
|
if (match) {
|
|
return /** @type {Node} */ (/** @type {unknown} */ (rules));
|
|
}
|
|
}
|
|
}
|
|
if (isOneFound) {
|
|
throw { type: 'Runtime',
|
|
message: `No matching definition was found for \`${this.format(args)}\``,
|
|
index: this.getIndex(), filename: this.fileInfo().filename };
|
|
} else {
|
|
throw { type: 'Name',
|
|
message: `${this.selector.toCSS(/** @type {EvalContext} */ ({})).trim()} is undefined`,
|
|
index: this.getIndex(), filename: this.fileInfo().filename };
|
|
}
|
|
}
|
|
|
|
/** @param {Node[]} replacement */
|
|
_setVisibilityToReplacement(replacement) {
|
|
/** @type {number} */
|
|
let i;
|
|
/** @type {Node} */
|
|
let rule;
|
|
if (this.blocksVisibility()) {
|
|
for (i = 0; i < replacement.length; i++) {
|
|
rule = replacement[i];
|
|
rule.addVisibilityBlock();
|
|
}
|
|
}
|
|
}
|
|
|
|
/** @param {MixinArg[]} args */
|
|
format(args) {
|
|
return `${this.selector.toCSS(/** @type {EvalContext} */ ({})).trim()}(${args ? args.map(function (/** @type {MixinArg} */ a) {
|
|
let argValue = '';
|
|
if (a.name) {
|
|
argValue += `${a.name}:`;
|
|
}
|
|
if (a.value.toCSS) {
|
|
argValue += a.value.toCSS(/** @type {EvalContext} */ ({}));
|
|
} else {
|
|
argValue += '???';
|
|
}
|
|
return argValue;
|
|
}).join(', ') : ''})`;
|
|
}
|
|
}
|
|
|
|
// @ts-check
|
|
|
|
var tree = {
|
|
Node, Color, AtRule, DetachedRuleset, Operation,
|
|
Dimension, Unit, Keyword, Variable, Property,
|
|
Ruleset, Element, Attribute, Combinator, Selector,
|
|
Quoted, Expression, Declaration, Call, URL, Import,
|
|
Comment, Anonymous, Value, JavaScript, Assignment,
|
|
Condition, Paren, Media, Container, QueryInParens,
|
|
UnicodeDescriptor, Negative, Extend, VariableCall,
|
|
NamespaceValue,
|
|
mixin: {
|
|
Call: MixinCall,
|
|
Definition: Definition
|
|
}
|
|
};
|
|
|
|
class AbstractFileManager {
|
|
getPath(filename) {
|
|
let j = filename.lastIndexOf('?');
|
|
if (j > 0) {
|
|
filename = filename.slice(0, j);
|
|
}
|
|
j = filename.lastIndexOf('/');
|
|
if (j < 0) {
|
|
j = filename.lastIndexOf('\\');
|
|
}
|
|
if (j < 0) {
|
|
return '';
|
|
}
|
|
return filename.slice(0, j + 1);
|
|
}
|
|
|
|
tryAppendExtension(path, ext) {
|
|
return /(\.[a-z]*$)|([?;].*)$/.test(path) ? path : path + ext;
|
|
}
|
|
|
|
tryAppendLessExtension(path) {
|
|
return this.tryAppendExtension(path, '.less');
|
|
}
|
|
|
|
supportsSync() {
|
|
return false;
|
|
}
|
|
|
|
alwaysMakePathsAbsolute() {
|
|
return false;
|
|
}
|
|
|
|
isPathAbsolute(filename) {
|
|
return (/^(?:[a-z-]+:|\/|\\|#)/i).test(filename);
|
|
}
|
|
|
|
// TODO: pull out / replace?
|
|
join(basePath, laterPath) {
|
|
if (!basePath) {
|
|
return laterPath;
|
|
}
|
|
return basePath + laterPath;
|
|
}
|
|
|
|
pathDiff(url, baseUrl) {
|
|
// diff between two paths to create a relative path
|
|
|
|
const urlParts = this.extractUrlParts(url);
|
|
|
|
const baseUrlParts = this.extractUrlParts(baseUrl);
|
|
let i;
|
|
let max;
|
|
let urlDirectories;
|
|
let baseUrlDirectories;
|
|
let diff = '';
|
|
if (urlParts.hostPart !== baseUrlParts.hostPart) {
|
|
return '';
|
|
}
|
|
max = Math.max(baseUrlParts.directories.length, urlParts.directories.length);
|
|
for (i = 0; i < max; i++) {
|
|
if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; }
|
|
}
|
|
baseUrlDirectories = baseUrlParts.directories.slice(i);
|
|
urlDirectories = urlParts.directories.slice(i);
|
|
for (i = 0; i < baseUrlDirectories.length - 1; i++) {
|
|
diff += '../';
|
|
}
|
|
for (i = 0; i < urlDirectories.length - 1; i++) {
|
|
diff += `${urlDirectories[i]}/`;
|
|
}
|
|
return diff;
|
|
}
|
|
|
|
/**
|
|
* Helper function, not part of API.
|
|
* This should be replaceable by newer Node / Browser APIs
|
|
*
|
|
* @param {string} url
|
|
* @param {string} baseUrl
|
|
*/
|
|
extractUrlParts(url, baseUrl) {
|
|
// urlParts[1] = protocol://hostname/ OR /
|
|
// urlParts[2] = / if path relative to host base
|
|
// urlParts[3] = directories
|
|
// urlParts[4] = filename
|
|
// urlParts[5] = parameters
|
|
|
|
const urlPartsRegex = /^((?:[a-z-]+:)?\/{2}(?:[^/?#]*\/)|([/\\]))?((?:[^/\\?#]*[/\\])*)([^/\\?#]*)([#?].*)?$/i;
|
|
|
|
const urlParts = url.match(urlPartsRegex);
|
|
const returner = {};
|
|
let rawDirectories = [];
|
|
const directories = [];
|
|
let i;
|
|
let baseUrlParts;
|
|
|
|
if (!urlParts) {
|
|
throw new Error(`Could not parse sheet href - '${url}'`);
|
|
}
|
|
|
|
// Stylesheets in IE don't always return the full path
|
|
if (baseUrl && (!urlParts[1] || urlParts[2])) {
|
|
baseUrlParts = baseUrl.match(urlPartsRegex);
|
|
if (!baseUrlParts) {
|
|
throw new Error(`Could not parse page url - '${baseUrl}'`);
|
|
}
|
|
urlParts[1] = urlParts[1] || baseUrlParts[1] || '';
|
|
if (!urlParts[2]) {
|
|
urlParts[3] = baseUrlParts[3] + urlParts[3];
|
|
}
|
|
}
|
|
|
|
if (urlParts[3]) {
|
|
rawDirectories = urlParts[3].replace(/\\/g, '/').split('/');
|
|
|
|
// collapse '..' and skip '.'
|
|
for (i = 0; i < rawDirectories.length; i++) {
|
|
|
|
if (rawDirectories[i] === '..') {
|
|
directories.pop();
|
|
}
|
|
else if (rawDirectories[i] !== '.') {
|
|
directories.push(rawDirectories[i]);
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
returner.hostPart = urlParts[1];
|
|
returner.directories = directories;
|
|
returner.rawPath = (urlParts[1] || '') + rawDirectories.join('/');
|
|
returner.path = (urlParts[1] || '') + directories.join('/');
|
|
returner.filename = urlParts[4];
|
|
returner.fileUrl = returner.path + (urlParts[4] || '');
|
|
returner.url = returner.fileUrl + (urlParts[5] || '');
|
|
return returner;
|
|
}
|
|
}
|
|
|
|
class AbstractPluginLoader {
|
|
constructor() {
|
|
// Implemented by Node.js plugin loader
|
|
this.require = function() {
|
|
return null;
|
|
};
|
|
}
|
|
|
|
evalPlugin(contents, context, imports, pluginOptions, fileInfo) {
|
|
|
|
let loader, registry, pluginObj, localModule, pluginManager, filename, result;
|
|
|
|
pluginManager = context.pluginManager;
|
|
|
|
if (fileInfo) {
|
|
if (typeof fileInfo === 'string') {
|
|
filename = fileInfo;
|
|
}
|
|
else {
|
|
filename = fileInfo.filename;
|
|
}
|
|
}
|
|
const shortname = (new this.less.FileManager()).extractUrlParts(filename).filename;
|
|
|
|
if (filename) {
|
|
pluginObj = pluginManager.get(filename);
|
|
|
|
if (pluginObj) {
|
|
result = this.trySetOptions(pluginObj, filename, shortname, pluginOptions);
|
|
if (result) {
|
|
return result;
|
|
}
|
|
try {
|
|
if (pluginObj.use) {
|
|
pluginObj.use.call(this.context, pluginObj);
|
|
}
|
|
}
|
|
catch (e) {
|
|
e.message = e.message || 'Error during @plugin call';
|
|
return new LessError(e, imports, filename);
|
|
}
|
|
return pluginObj;
|
|
}
|
|
}
|
|
localModule = {
|
|
exports: {},
|
|
pluginManager,
|
|
fileInfo
|
|
};
|
|
registry = functionRegistry.create();
|
|
|
|
const registerPlugin = function(obj) {
|
|
pluginObj = obj;
|
|
};
|
|
|
|
try {
|
|
loader = new Function('module', 'require', 'registerPlugin', 'functions', 'tree', 'less', 'fileInfo', contents);
|
|
loader(localModule, this.require(filename), registerPlugin, registry, this.less.tree, this.less, fileInfo);
|
|
}
|
|
catch (e) {
|
|
return new LessError(e, imports, filename);
|
|
}
|
|
|
|
if (!pluginObj) {
|
|
pluginObj = localModule.exports;
|
|
}
|
|
pluginObj = this.validatePlugin(pluginObj, filename, shortname);
|
|
|
|
if (pluginObj instanceof LessError) {
|
|
return pluginObj;
|
|
}
|
|
|
|
if (pluginObj) {
|
|
pluginObj.imports = imports;
|
|
pluginObj.filename = filename;
|
|
|
|
// For < 3.x (or unspecified minVersion) - setOptions() before install()
|
|
if (!pluginObj.minVersion || this.compareVersion('3.0.0', pluginObj.minVersion) < 0) {
|
|
result = this.trySetOptions(pluginObj, filename, shortname, pluginOptions);
|
|
|
|
if (result) {
|
|
return result;
|
|
}
|
|
}
|
|
|
|
// Run on first load
|
|
pluginManager.addPlugin(pluginObj, fileInfo.filename, registry);
|
|
pluginObj.functions = registry.getLocalFunctions();
|
|
|
|
// Need to call setOptions again because the pluginObj might have functions
|
|
result = this.trySetOptions(pluginObj, filename, shortname, pluginOptions);
|
|
if (result) {
|
|
return result;
|
|
}
|
|
|
|
// Run every @plugin call
|
|
try {
|
|
if (pluginObj.use) {
|
|
pluginObj.use.call(this.context, pluginObj);
|
|
}
|
|
}
|
|
catch (e) {
|
|
e.message = e.message || 'Error during @plugin call';
|
|
return new LessError(e, imports, filename);
|
|
}
|
|
|
|
}
|
|
else {
|
|
return new LessError({ message: 'Not a valid plugin' }, imports, filename);
|
|
}
|
|
|
|
return pluginObj;
|
|
|
|
}
|
|
|
|
trySetOptions(plugin, filename, name, options) {
|
|
if (options && !plugin.setOptions) {
|
|
return new LessError({
|
|
message: `Options have been provided but the plugin ${name} does not support any options.`
|
|
});
|
|
}
|
|
try {
|
|
plugin.setOptions && plugin.setOptions(options);
|
|
}
|
|
catch (e) {
|
|
return new LessError(e);
|
|
}
|
|
}
|
|
|
|
validatePlugin(plugin, filename, name) {
|
|
if (plugin) {
|
|
// support plugins being a function
|
|
// so that the plugin can be more usable programmatically
|
|
if (typeof plugin === 'function') {
|
|
plugin = new plugin();
|
|
}
|
|
|
|
if (plugin.minVersion) {
|
|
if (this.compareVersion(plugin.minVersion, this.less.version) < 0) {
|
|
return new LessError({
|
|
message: `Plugin ${name} requires version ${this.versionToString(plugin.minVersion)}`
|
|
});
|
|
}
|
|
}
|
|
return plugin;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
compareVersion(aVersion, bVersion) {
|
|
if (typeof aVersion === 'string') {
|
|
aVersion = aVersion.match(/^(\d+)\.?(\d+)?\.?(\d+)?/);
|
|
aVersion.shift();
|
|
}
|
|
for (let i = 0; i < aVersion.length; i++) {
|
|
if (aVersion[i] !== bVersion[i]) {
|
|
return parseInt(aVersion[i]) > parseInt(bVersion[i]) ? -1 : 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
versionToString(version) {
|
|
let versionString = '';
|
|
for (let i = 0; i < version.length; i++) {
|
|
versionString += (versionString ? '.' : '') + version[i];
|
|
}
|
|
return versionString;
|
|
}
|
|
|
|
printUsage(plugins) {
|
|
for (let i = 0; i < plugins.length; i++) {
|
|
const plugin = plugins[i];
|
|
if (plugin.printUsage) {
|
|
plugin.printUsage();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function boolean(condition) {
|
|
return condition ? Keyword.True : Keyword.False;
|
|
}
|
|
|
|
/**
|
|
* Functions with evalArgs set to false are sent context
|
|
* as the first argument.
|
|
*/
|
|
function If(context, condition, trueValue, falseValue) {
|
|
return condition.eval(context) ? trueValue.eval(context)
|
|
: (falseValue ? falseValue.eval(context) : new Anonymous);
|
|
}
|
|
If.evalArgs = false;
|
|
|
|
function isdefined(context, variable) {
|
|
try {
|
|
variable.eval(context);
|
|
return Keyword.True;
|
|
} catch (e) {
|
|
return Keyword.False;
|
|
}
|
|
}
|
|
|
|
isdefined.evalArgs = false;
|
|
|
|
var boolean$1 = { isdefined, boolean, 'if': If };
|
|
|
|
let colorFunctions;
|
|
|
|
function clamp(val) {
|
|
return Math.min(1, Math.max(0, val));
|
|
}
|
|
function hsla(origColor, hsl) {
|
|
const color = colorFunctions.hsla(hsl.h, hsl.s, hsl.l, hsl.a);
|
|
if (color) {
|
|
if (origColor.value &&
|
|
/^(rgb|hsl)/.test(origColor.value)) {
|
|
color.value = origColor.value;
|
|
} else {
|
|
color.value = 'rgb';
|
|
}
|
|
return color;
|
|
}
|
|
}
|
|
function toHSL(color) {
|
|
if (color.toHSL) {
|
|
return color.toHSL();
|
|
} else {
|
|
throw new Error('Argument cannot be evaluated to a color');
|
|
}
|
|
}
|
|
|
|
function toHSV(color) {
|
|
if (color.toHSV) {
|
|
return color.toHSV();
|
|
} else {
|
|
throw new Error('Argument cannot be evaluated to a color');
|
|
}
|
|
}
|
|
|
|
function number$1(n) {
|
|
if (n instanceof Dimension) {
|
|
return parseFloat(n.unit.is('%') ? n.value / 100 : n.value);
|
|
} else if (typeof n === 'number') {
|
|
return n;
|
|
} else {
|
|
throw {
|
|
type: 'Argument',
|
|
message: 'color functions take numbers as parameters'
|
|
};
|
|
}
|
|
}
|
|
function scaled(n, size) {
|
|
if (n instanceof Dimension && n.unit.is('%')) {
|
|
return parseFloat(n.value * size / 100);
|
|
} else {
|
|
return number$1(n);
|
|
}
|
|
}
|
|
colorFunctions = {
|
|
rgb: function (r, g, b) {
|
|
let a = 1;
|
|
/**
|
|
* Comma-less syntax
|
|
* e.g. rgb(0 128 255 / 50%)
|
|
*/
|
|
if (r instanceof Expression) {
|
|
const val = r.value;
|
|
r = val[0];
|
|
g = val[1];
|
|
b = val[2];
|
|
/**
|
|
* @todo - should this be normalized in
|
|
* function caller? Or parsed differently?
|
|
*/
|
|
if (b instanceof Operation) {
|
|
const op = b;
|
|
b = op.operands[0];
|
|
a = op.operands[1];
|
|
}
|
|
}
|
|
const color = colorFunctions.rgba(r, g, b, a);
|
|
if (color) {
|
|
color.value = 'rgb';
|
|
return color;
|
|
}
|
|
},
|
|
rgba: function (r, g, b, a) {
|
|
try {
|
|
if (r instanceof Color) {
|
|
if (g) {
|
|
a = number$1(g);
|
|
} else {
|
|
a = r.alpha;
|
|
}
|
|
return new Color(r.rgb, a, 'rgba');
|
|
}
|
|
const rgb = [r, g, b].map(c => scaled(c, 255));
|
|
a = number$1(a);
|
|
return new Color(rgb, a, 'rgba');
|
|
}
|
|
catch (e) {}
|
|
},
|
|
hsl: function (h, s, l) {
|
|
let a = 1;
|
|
if (h instanceof Expression) {
|
|
const val = h.value;
|
|
h = val[0];
|
|
s = val[1];
|
|
l = val[2];
|
|
|
|
if (l instanceof Operation) {
|
|
const op = l;
|
|
l = op.operands[0];
|
|
a = op.operands[1];
|
|
}
|
|
}
|
|
const color = colorFunctions.hsla(h, s, l, a);
|
|
if (color) {
|
|
color.value = 'hsl';
|
|
return color;
|
|
}
|
|
},
|
|
hsla: function (h, s, l, a) {
|
|
let m1;
|
|
let m2;
|
|
|
|
function hue(h) {
|
|
h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
|
|
if (h * 6 < 1) {
|
|
return m1 + (m2 - m1) * h * 6;
|
|
}
|
|
else if (h * 2 < 1) {
|
|
return m2;
|
|
}
|
|
else if (h * 3 < 2) {
|
|
return m1 + (m2 - m1) * (2 / 3 - h) * 6;
|
|
}
|
|
else {
|
|
return m1;
|
|
}
|
|
}
|
|
|
|
try {
|
|
if (h instanceof Color) {
|
|
if (s) {
|
|
a = number$1(s);
|
|
} else {
|
|
a = h.alpha;
|
|
}
|
|
return new Color(h.rgb, a, 'hsla');
|
|
}
|
|
|
|
h = (number$1(h) % 360) / 360;
|
|
s = clamp(number$1(s));l = clamp(number$1(l));a = clamp(number$1(a));
|
|
|
|
m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
|
|
m1 = l * 2 - m2;
|
|
|
|
const rgb = [
|
|
hue(h + 1 / 3) * 255,
|
|
hue(h) * 255,
|
|
hue(h - 1 / 3) * 255
|
|
];
|
|
a = number$1(a);
|
|
return new Color(rgb, a, 'hsla');
|
|
}
|
|
catch (e) {}
|
|
},
|
|
|
|
hsv: function(h, s, v) {
|
|
return colorFunctions.hsva(h, s, v, 1.0);
|
|
},
|
|
|
|
hsva: function(h, s, v, a) {
|
|
h = ((number$1(h) % 360) / 360) * 360;
|
|
s = number$1(s);v = number$1(v);a = number$1(a);
|
|
|
|
let i;
|
|
let f;
|
|
i = Math.floor((h / 60) % 6);
|
|
f = (h / 60) - i;
|
|
|
|
const vs = [v,
|
|
v * (1 - s),
|
|
v * (1 - f * s),
|
|
v * (1 - (1 - f) * s)];
|
|
const perm = [[0, 3, 1],
|
|
[2, 0, 1],
|
|
[1, 0, 3],
|
|
[1, 2, 0],
|
|
[3, 1, 0],
|
|
[0, 1, 2]];
|
|
|
|
return colorFunctions.rgba(vs[perm[i][0]] * 255,
|
|
vs[perm[i][1]] * 255,
|
|
vs[perm[i][2]] * 255,
|
|
a);
|
|
},
|
|
|
|
hue: function (color) {
|
|
return new Dimension(toHSL(color).h);
|
|
},
|
|
saturation: function (color) {
|
|
return new Dimension(toHSL(color).s * 100, '%');
|
|
},
|
|
lightness: function (color) {
|
|
return new Dimension(toHSL(color).l * 100, '%');
|
|
},
|
|
hsvhue: function(color) {
|
|
return new Dimension(toHSV(color).h);
|
|
},
|
|
hsvsaturation: function (color) {
|
|
return new Dimension(toHSV(color).s * 100, '%');
|
|
},
|
|
hsvvalue: function (color) {
|
|
return new Dimension(toHSV(color).v * 100, '%');
|
|
},
|
|
red: function (color) {
|
|
return new Dimension(color.rgb[0]);
|
|
},
|
|
green: function (color) {
|
|
return new Dimension(color.rgb[1]);
|
|
},
|
|
blue: function (color) {
|
|
return new Dimension(color.rgb[2]);
|
|
},
|
|
alpha: function (color) {
|
|
return new Dimension(toHSL(color).a);
|
|
},
|
|
luma: function (color) {
|
|
return new Dimension(color.luma() * color.alpha * 100, '%');
|
|
},
|
|
luminance: function (color) {
|
|
const luminance =
|
|
(0.2126 * color.rgb[0] / 255) +
|
|
(0.7152 * color.rgb[1] / 255) +
|
|
(0.0722 * color.rgb[2] / 255);
|
|
|
|
return new Dimension(luminance * color.alpha * 100, '%');
|
|
},
|
|
saturate: function (color, amount, method) {
|
|
// filter: saturate(3.2);
|
|
// should be kept as is, so check for color
|
|
if (!color.rgb) {
|
|
return null;
|
|
}
|
|
const hsl = toHSL(color);
|
|
|
|
if (typeof method !== 'undefined' && method.value === 'relative') {
|
|
hsl.s += hsl.s * amount.value / 100;
|
|
}
|
|
else {
|
|
hsl.s += amount.value / 100;
|
|
}
|
|
hsl.s = clamp(hsl.s);
|
|
return hsla(color, hsl);
|
|
},
|
|
desaturate: function (color, amount, method) {
|
|
const hsl = toHSL(color);
|
|
|
|
if (typeof method !== 'undefined' && method.value === 'relative') {
|
|
hsl.s -= hsl.s * amount.value / 100;
|
|
}
|
|
else {
|
|
hsl.s -= amount.value / 100;
|
|
}
|
|
hsl.s = clamp(hsl.s);
|
|
return hsla(color, hsl);
|
|
},
|
|
lighten: function (color, amount, method) {
|
|
const hsl = toHSL(color);
|
|
|
|
if (typeof method !== 'undefined' && method.value === 'relative') {
|
|
hsl.l += hsl.l * amount.value / 100;
|
|
}
|
|
else {
|
|
hsl.l += amount.value / 100;
|
|
}
|
|
hsl.l = clamp(hsl.l);
|
|
return hsla(color, hsl);
|
|
},
|
|
darken: function (color, amount, method) {
|
|
const hsl = toHSL(color);
|
|
|
|
if (typeof method !== 'undefined' && method.value === 'relative') {
|
|
hsl.l -= hsl.l * amount.value / 100;
|
|
}
|
|
else {
|
|
hsl.l -= amount.value / 100;
|
|
}
|
|
hsl.l = clamp(hsl.l);
|
|
return hsla(color, hsl);
|
|
},
|
|
fadein: function (color, amount, method) {
|
|
const hsl = toHSL(color);
|
|
|
|
if (typeof method !== 'undefined' && method.value === 'relative') {
|
|
hsl.a += hsl.a * amount.value / 100;
|
|
}
|
|
else {
|
|
hsl.a += amount.value / 100;
|
|
}
|
|
hsl.a = clamp(hsl.a);
|
|
return hsla(color, hsl);
|
|
},
|
|
fadeout: function (color, amount, method) {
|
|
const hsl = toHSL(color);
|
|
|
|
if (typeof method !== 'undefined' && method.value === 'relative') {
|
|
hsl.a -= hsl.a * amount.value / 100;
|
|
}
|
|
else {
|
|
hsl.a -= amount.value / 100;
|
|
}
|
|
hsl.a = clamp(hsl.a);
|
|
return hsla(color, hsl);
|
|
},
|
|
fade: function (color, amount) {
|
|
const hsl = toHSL(color);
|
|
|
|
hsl.a = amount.value / 100;
|
|
hsl.a = clamp(hsl.a);
|
|
return hsla(color, hsl);
|
|
},
|
|
spin: function (color, amount) {
|
|
const hsl = toHSL(color);
|
|
const hue = (hsl.h + amount.value) % 360;
|
|
|
|
hsl.h = hue < 0 ? 360 + hue : hue;
|
|
|
|
return hsla(color, hsl);
|
|
},
|
|
//
|
|
// Copyright (c) 2006-2009 Hampton Catlin, Natalie Weizenbaum, and Chris Eppstein
|
|
// http://sass-lang.com
|
|
//
|
|
mix: function (color1, color2, weight) {
|
|
if (!weight) {
|
|
weight = new Dimension(50);
|
|
}
|
|
const p = weight.value / 100.0;
|
|
const w = p * 2 - 1;
|
|
const a = toHSL(color1).a - toHSL(color2).a;
|
|
|
|
const w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
|
|
const w2 = 1 - w1;
|
|
|
|
const rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
|
|
color1.rgb[1] * w1 + color2.rgb[1] * w2,
|
|
color1.rgb[2] * w1 + color2.rgb[2] * w2];
|
|
|
|
const alpha = color1.alpha * p + color2.alpha * (1 - p);
|
|
|
|
return new Color(rgb, alpha);
|
|
},
|
|
greyscale: function (color) {
|
|
return colorFunctions.desaturate(color, new Dimension(100));
|
|
},
|
|
contrast: function (color, dark, light, threshold) {
|
|
// filter: contrast(3.2);
|
|
// should be kept as is, so check for color
|
|
if (!color.rgb) {
|
|
return null;
|
|
}
|
|
if (typeof light === 'undefined') {
|
|
light = colorFunctions.rgba(255, 255, 255, 1.0);
|
|
}
|
|
if (typeof dark === 'undefined') {
|
|
dark = colorFunctions.rgba(0, 0, 0, 1.0);
|
|
}
|
|
// Figure out which is actually light and dark:
|
|
if (dark.luma() > light.luma()) {
|
|
const t = light;
|
|
light = dark;
|
|
dark = t;
|
|
}
|
|
if (typeof threshold === 'undefined') {
|
|
threshold = 0.43;
|
|
} else {
|
|
threshold = number$1(threshold);
|
|
}
|
|
if (color.luma() < threshold) {
|
|
return light;
|
|
} else {
|
|
return dark;
|
|
}
|
|
},
|
|
// Changes made in 2.7.0 - Reverted in 3.0.0
|
|
// contrast: function (color, color1, color2, threshold) {
|
|
// // Return which of `color1` and `color2` has the greatest contrast with `color`
|
|
// // according to the standard WCAG contrast ratio calculation.
|
|
// // http://www.w3.org/TR/WCAG20/#contrast-ratiodef
|
|
// // The threshold param is no longer used, in line with SASS.
|
|
// // filter: contrast(3.2);
|
|
// // should be kept as is, so check for color
|
|
// if (!color.rgb) {
|
|
// return null;
|
|
// }
|
|
// if (typeof color1 === 'undefined') {
|
|
// color1 = colorFunctions.rgba(0, 0, 0, 1.0);
|
|
// }
|
|
// if (typeof color2 === 'undefined') {
|
|
// color2 = colorFunctions.rgba(255, 255, 255, 1.0);
|
|
// }
|
|
// var contrast1, contrast2;
|
|
// var luma = color.luma();
|
|
// var luma1 = color1.luma();
|
|
// var luma2 = color2.luma();
|
|
// // Calculate contrast ratios for each color
|
|
// if (luma > luma1) {
|
|
// contrast1 = (luma + 0.05) / (luma1 + 0.05);
|
|
// } else {
|
|
// contrast1 = (luma1 + 0.05) / (luma + 0.05);
|
|
// }
|
|
// if (luma > luma2) {
|
|
// contrast2 = (luma + 0.05) / (luma2 + 0.05);
|
|
// } else {
|
|
// contrast2 = (luma2 + 0.05) / (luma + 0.05);
|
|
// }
|
|
// if (contrast1 > contrast2) {
|
|
// return color1;
|
|
// } else {
|
|
// return color2;
|
|
// }
|
|
// },
|
|
argb: function (color) {
|
|
return new Anonymous(color.toARGB());
|
|
},
|
|
color: function(c) {
|
|
if ((c instanceof Quoted) &&
|
|
(/^#([A-Fa-f0-9]{8}|[A-Fa-f0-9]{6}|[A-Fa-f0-9]{3,4})$/i.test(c.value))) {
|
|
const val = c.value.slice(1);
|
|
return new Color(val, undefined, `#${val}`);
|
|
}
|
|
if ((c instanceof Color) || (c = Color.fromKeyword(c.value))) {
|
|
c.value = undefined;
|
|
return c;
|
|
}
|
|
throw {
|
|
type: 'Argument',
|
|
message: 'argument must be a color keyword or 3|4|6|8 digit hex e.g. #FFF'
|
|
};
|
|
},
|
|
tint: function(color, amount) {
|
|
return colorFunctions.mix(colorFunctions.rgb(255, 255, 255), color, amount);
|
|
},
|
|
shade: function(color, amount) {
|
|
return colorFunctions.mix(colorFunctions.rgb(0, 0, 0), color, amount);
|
|
}
|
|
};
|
|
|
|
var color = colorFunctions;
|
|
|
|
// Color Blending
|
|
// ref: http://www.w3.org/TR/compositing-1
|
|
|
|
function colorBlend(mode, color1, color2) {
|
|
const ab = color1.alpha; // result
|
|
|
|
let // backdrop
|
|
cb;
|
|
|
|
const as = color2.alpha;
|
|
|
|
let // source
|
|
cs;
|
|
|
|
let ar;
|
|
let cr;
|
|
const r = [];
|
|
|
|
ar = as + ab * (1 - as);
|
|
for (let i = 0; i < 3; i++) {
|
|
cb = color1.rgb[i] / 255;
|
|
cs = color2.rgb[i] / 255;
|
|
cr = mode(cb, cs);
|
|
if (ar) {
|
|
cr = (as * cs + ab * (cb -
|
|
as * (cb + cs - cr))) / ar;
|
|
}
|
|
r[i] = cr * 255;
|
|
}
|
|
|
|
return new Color(r, ar);
|
|
}
|
|
|
|
const colorBlendModeFunctions = {
|
|
multiply: function(cb, cs) {
|
|
return cb * cs;
|
|
},
|
|
screen: function(cb, cs) {
|
|
return cb + cs - cb * cs;
|
|
},
|
|
overlay: function(cb, cs) {
|
|
cb *= 2;
|
|
return (cb <= 1) ?
|
|
colorBlendModeFunctions.multiply(cb, cs) :
|
|
colorBlendModeFunctions.screen(cb - 1, cs);
|
|
},
|
|
softlight: function(cb, cs) {
|
|
let d = 1;
|
|
let e = cb;
|
|
if (cs > 0.5) {
|
|
e = 1;
|
|
d = (cb > 0.25) ? Math.sqrt(cb)
|
|
: ((16 * cb - 12) * cb + 4) * cb;
|
|
}
|
|
return cb - (1 - 2 * cs) * e * (d - cb);
|
|
},
|
|
hardlight: function(cb, cs) {
|
|
return colorBlendModeFunctions.overlay(cs, cb);
|
|
},
|
|
difference: function(cb, cs) {
|
|
return Math.abs(cb - cs);
|
|
},
|
|
exclusion: function(cb, cs) {
|
|
return cb + cs - 2 * cb * cs;
|
|
},
|
|
|
|
// non-w3c functions:
|
|
average: function(cb, cs) {
|
|
return (cb + cs) / 2;
|
|
},
|
|
negation: function(cb, cs) {
|
|
return 1 - Math.abs(cb + cs - 1);
|
|
}
|
|
};
|
|
|
|
for (const f in colorBlendModeFunctions) {
|
|
// eslint-disable-next-line no-prototype-builtins
|
|
if (colorBlendModeFunctions.hasOwnProperty(f)) {
|
|
colorBlend[f] = colorBlend.bind(null, colorBlendModeFunctions[f]);
|
|
}
|
|
}
|
|
|
|
var dataUri = environment => {
|
|
|
|
const fallback = (functionThis, node) => new URL(node, functionThis.index, functionThis.currentFileInfo).eval(functionThis.context);
|
|
|
|
return { 'data-uri': function(mimetypeNode, filePathNode) {
|
|
|
|
if (!filePathNode) {
|
|
filePathNode = mimetypeNode;
|
|
mimetypeNode = null;
|
|
}
|
|
|
|
let mimetype = mimetypeNode && mimetypeNode.value;
|
|
let filePath = filePathNode.value;
|
|
const currentFileInfo = this.currentFileInfo;
|
|
const currentDirectory = currentFileInfo.rewriteUrls ?
|
|
currentFileInfo.currentDirectory : currentFileInfo.entryPath;
|
|
|
|
const fragmentStart = filePath.indexOf('#');
|
|
let fragment = '';
|
|
if (fragmentStart !== -1) {
|
|
fragment = filePath.slice(fragmentStart);
|
|
filePath = filePath.slice(0, fragmentStart);
|
|
}
|
|
const context = clone(this.context);
|
|
context.rawBuffer = true;
|
|
|
|
const fileManager = environment.getFileManager(filePath, currentDirectory, context, environment, true);
|
|
|
|
if (!fileManager) {
|
|
return fallback(this, filePathNode);
|
|
}
|
|
|
|
let useBase64 = false;
|
|
|
|
// detect the mimetype if not given
|
|
if (!mimetypeNode) {
|
|
|
|
mimetype = environment.mimeLookup(filePath);
|
|
|
|
if (mimetype === 'image/svg+xml') {
|
|
useBase64 = false;
|
|
} else {
|
|
// use base 64 unless it's an ASCII or UTF-8 format
|
|
const charset = environment.charsetLookup(mimetype);
|
|
useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0;
|
|
}
|
|
if (useBase64) { mimetype += ';base64'; }
|
|
}
|
|
else {
|
|
useBase64 = /;base64$/.test(mimetype);
|
|
}
|
|
|
|
const fileSync = fileManager.loadFileSync(filePath, currentDirectory, context, environment);
|
|
if (!fileSync.contents) {
|
|
logger$1.warn(`Skipped data-uri embedding of ${filePath} because file not found`);
|
|
return fallback(this, filePathNode || mimetypeNode);
|
|
}
|
|
let buf = fileSync.contents;
|
|
if (useBase64 && !environment.encodeBase64) {
|
|
return fallback(this, filePathNode);
|
|
}
|
|
|
|
buf = useBase64 ? environment.encodeBase64(buf) : encodeURIComponent(buf);
|
|
|
|
const uri = `data:${mimetype},${buf}${fragment}`;
|
|
|
|
return new URL(new Quoted(`"${uri}"`, uri, false, this.index, this.currentFileInfo), this.index, this.currentFileInfo);
|
|
}};
|
|
};
|
|
|
|
const getItemsFromNode = node => {
|
|
// handle non-array values as an array of length 1
|
|
// return 'undefined' if index is invalid
|
|
const items = Array.isArray(node.value) ?
|
|
node.value : Array(node);
|
|
|
|
return items;
|
|
};
|
|
|
|
var list = {
|
|
_SELF: function(n) {
|
|
return n;
|
|
},
|
|
'~': function(...expr) {
|
|
if (expr.length === 1) {
|
|
return expr[0];
|
|
}
|
|
return new Value(expr);
|
|
},
|
|
extract: function(values, index) {
|
|
// (1-based index)
|
|
index = index.value - 1;
|
|
|
|
return getItemsFromNode(values)[index];
|
|
},
|
|
length: function(values) {
|
|
return new Dimension(getItemsFromNode(values).length);
|
|
},
|
|
/**
|
|
* Creates a Less list of incremental values.
|
|
* Modeled after Lodash's range function, also exists natively in PHP
|
|
*
|
|
* @param {Dimension} [start=1]
|
|
* @param {Dimension} end - e.g. 10 or 10px - unit is added to output
|
|
* @param {Dimension} [step=1]
|
|
*/
|
|
range: function(start, end, step) {
|
|
let from;
|
|
let to;
|
|
let stepValue = 1;
|
|
const list = [];
|
|
if (end) {
|
|
to = end;
|
|
from = start.value;
|
|
if (step) {
|
|
stepValue = step.value;
|
|
}
|
|
}
|
|
else {
|
|
from = 1;
|
|
to = start;
|
|
}
|
|
|
|
for (let i = from; i <= to.value; i += stepValue) {
|
|
list.push(new Dimension(i, to.unit));
|
|
}
|
|
|
|
return new Expression(list);
|
|
},
|
|
each: function(list, rs) {
|
|
const rules = [];
|
|
let newRules;
|
|
let iterator;
|
|
|
|
const tryEval = val => {
|
|
if (val instanceof Node) {
|
|
return val.eval(this.context);
|
|
}
|
|
return val;
|
|
};
|
|
|
|
if (list.value && !(list instanceof Quoted)) {
|
|
if (Array.isArray(list.value)) {
|
|
iterator = list.value.map(tryEval);
|
|
} else {
|
|
iterator = [tryEval(list.value)];
|
|
}
|
|
} else if (list.ruleset) {
|
|
iterator = tryEval(list.ruleset).rules;
|
|
} else if (list.rules) {
|
|
iterator = list.rules.map(tryEval);
|
|
} else if (Array.isArray(list)) {
|
|
iterator = list.map(tryEval);
|
|
} else {
|
|
iterator = [tryEval(list)];
|
|
}
|
|
|
|
let valueName = '@value';
|
|
let keyName = '@key';
|
|
let indexName = '@index';
|
|
|
|
if (rs.params) {
|
|
valueName = rs.params[0] && rs.params[0].name;
|
|
keyName = rs.params[1] && rs.params[1].name;
|
|
indexName = rs.params[2] && rs.params[2].name;
|
|
rs = rs.rules;
|
|
} else {
|
|
rs = rs.ruleset;
|
|
}
|
|
|
|
for (let i = 0; i < iterator.length; i++) {
|
|
let key;
|
|
let value;
|
|
const item = iterator[i];
|
|
if (item instanceof Declaration) {
|
|
key = typeof item.name === 'string' ? item.name : item.name[0].value;
|
|
value = item.value;
|
|
} else {
|
|
key = new Dimension(i + 1);
|
|
value = item;
|
|
}
|
|
|
|
if (item instanceof Comment) {
|
|
continue;
|
|
}
|
|
|
|
newRules = rs.rules.slice(0);
|
|
if (valueName) {
|
|
newRules.push(new Declaration(valueName,
|
|
value,
|
|
false, false, this.index, this.currentFileInfo));
|
|
}
|
|
if (indexName) {
|
|
newRules.push(new Declaration(indexName,
|
|
new Dimension(i + 1),
|
|
false, false, this.index, this.currentFileInfo));
|
|
}
|
|
if (keyName) {
|
|
newRules.push(new Declaration(keyName,
|
|
key,
|
|
false, false, this.index, this.currentFileInfo));
|
|
}
|
|
|
|
rules.push(new Ruleset([ new(Selector)([ new Element('', '&') ]) ],
|
|
newRules,
|
|
rs.strictImports,
|
|
rs.visibilityInfo()
|
|
));
|
|
}
|
|
|
|
return new Ruleset([ new(Selector)([ new Element('', '&') ]) ],
|
|
rules,
|
|
rs.strictImports,
|
|
rs.visibilityInfo()
|
|
).eval(this.context);
|
|
}
|
|
};
|
|
|
|
const MathHelper = (fn, unit, n) => {
|
|
if (!(n instanceof Dimension)) {
|
|
throw { type: 'Argument', message: 'argument must be a number' };
|
|
}
|
|
if (unit === null) {
|
|
unit = n.unit;
|
|
} else {
|
|
n = n.unify();
|
|
}
|
|
return new Dimension(fn(parseFloat(n.value)), unit);
|
|
};
|
|
|
|
const mathFunctions = {
|
|
// name, unit
|
|
ceil: null,
|
|
floor: null,
|
|
sqrt: null,
|
|
abs: null,
|
|
tan: '',
|
|
sin: '',
|
|
cos: '',
|
|
atan: 'rad',
|
|
asin: 'rad',
|
|
acos: 'rad'
|
|
};
|
|
|
|
for (const f in mathFunctions) {
|
|
// eslint-disable-next-line no-prototype-builtins
|
|
if (mathFunctions.hasOwnProperty(f)) {
|
|
mathFunctions[f] = MathHelper.bind(null, Math[f], mathFunctions[f]);
|
|
}
|
|
}
|
|
|
|
mathFunctions.round = (n, f) => {
|
|
const fraction = typeof f === 'undefined' ? 0 : f.value;
|
|
return MathHelper(num => num.toFixed(fraction), null, n);
|
|
};
|
|
|
|
const minMax = function (isMin, args) {
|
|
args = Array.prototype.slice.call(args);
|
|
switch (args.length) {
|
|
case 0: throw { type: 'Argument', message: 'one or more arguments required' };
|
|
}
|
|
let i; // key is the unit.toString() for unified Dimension values,
|
|
let j;
|
|
let current;
|
|
let currentUnified;
|
|
let referenceUnified;
|
|
let unit;
|
|
let unitStatic;
|
|
let unitClone;
|
|
|
|
const // elems only contains original argument values.
|
|
order = [];
|
|
|
|
const values = {};
|
|
// value is the index into the order array.
|
|
for (i = 0; i < args.length; i++) {
|
|
current = args[i];
|
|
if (!(current instanceof Dimension)) {
|
|
if (Array.isArray(args[i].value)) {
|
|
Array.prototype.push.apply(args, Array.prototype.slice.call(args[i].value));
|
|
continue;
|
|
} else {
|
|
throw { type: 'Argument', message: 'incompatible types' };
|
|
}
|
|
}
|
|
currentUnified = current.unit.toString() === '' && unitClone !== undefined ? new Dimension(current.value, unitClone).unify() : current.unify();
|
|
unit = currentUnified.unit.toString() === '' && unitStatic !== undefined ? unitStatic : currentUnified.unit.toString();
|
|
unitStatic = unit !== '' && unitStatic === undefined || unit !== '' && order[0].unify().unit.toString() === '' ? unit : unitStatic;
|
|
unitClone = unit !== '' && unitClone === undefined ? current.unit.toString() : unitClone;
|
|
j = values[''] !== undefined && unit !== '' && unit === unitStatic ? values[''] : values[unit];
|
|
if (j === undefined) {
|
|
if (unitStatic !== undefined && unit !== unitStatic) {
|
|
throw { type: 'Argument', message: 'incompatible types' };
|
|
}
|
|
values[unit] = order.length;
|
|
order.push(current);
|
|
continue;
|
|
}
|
|
referenceUnified = order[j].unit.toString() === '' && unitClone !== undefined ? new Dimension(order[j].value, unitClone).unify() : order[j].unify();
|
|
if ( isMin && currentUnified.value < referenceUnified.value ||
|
|
!isMin && currentUnified.value > referenceUnified.value) {
|
|
order[j] = current;
|
|
}
|
|
}
|
|
if (order.length == 1) {
|
|
return order[0];
|
|
}
|
|
args = order.map(a => { return a.toCSS(this.context); }).join(this.context.compress ? ',' : ', ');
|
|
return new Anonymous(`${isMin ? 'min' : 'max'}(${args})`);
|
|
};
|
|
|
|
var number = {
|
|
min: function(...args) {
|
|
try {
|
|
return minMax.call(this, true, args);
|
|
} catch (e) {}
|
|
},
|
|
max: function(...args) {
|
|
try {
|
|
return minMax.call(this, false, args);
|
|
} catch (e) {}
|
|
},
|
|
convert: function (val, unit) {
|
|
return val.convertTo(unit.value);
|
|
},
|
|
pi: function () {
|
|
return new Dimension(Math.PI);
|
|
},
|
|
mod: function(a, b) {
|
|
return new Dimension(a.value % b.value, a.unit);
|
|
},
|
|
pow: function(x, y) {
|
|
if (typeof x === 'number' && typeof y === 'number') {
|
|
x = new Dimension(x);
|
|
y = new Dimension(y);
|
|
} else if (!(x instanceof Dimension) || !(y instanceof Dimension)) {
|
|
throw { type: 'Argument', message: 'arguments must be numbers' };
|
|
}
|
|
|
|
return new Dimension(Math.pow(x.value, y.value), x.unit);
|
|
},
|
|
percentage: function (n) {
|
|
const result = MathHelper(num => num * 100, '%', n);
|
|
|
|
return result;
|
|
}
|
|
};
|
|
|
|
var string = {
|
|
e: function (str) {
|
|
return new Quoted('"', str instanceof JavaScript ? str.evaluated : str.value, true);
|
|
},
|
|
escape: function (str) {
|
|
return new Anonymous(
|
|
encodeURI(str.value).replace(/=/g, '%3D').replace(/:/g, '%3A').replace(/#/g, '%23').replace(/;/g, '%3B')
|
|
.replace(/\(/g, '%28').replace(/\)/g, '%29'));
|
|
},
|
|
replace: function (string, pattern, replacement, flags) {
|
|
let result = string.value;
|
|
replacement = (replacement.type === 'Quoted') ?
|
|
replacement.value : replacement.toCSS();
|
|
result = result.replace(new RegExp(pattern.value, flags ? flags.value : ''), replacement);
|
|
return new Quoted(string.quote || '', result, string.escaped);
|
|
},
|
|
'%': function (string /* arg, arg, ... */) {
|
|
const args = Array.prototype.slice.call(arguments, 1);
|
|
let result = string.value;
|
|
|
|
for (let i = 0; i < args.length; i++) {
|
|
/* jshint loopfunc:true */
|
|
result = result.replace(/%[sda]/i, token => {
|
|
const value = ((args[i].type === 'Quoted') &&
|
|
token.match(/s/i)) ? args[i].value : args[i].toCSS();
|
|
return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
|
|
});
|
|
}
|
|
result = result.replace(/%%/g, '%');
|
|
return new Quoted(string.quote || '', result, string.escaped);
|
|
}
|
|
};
|
|
|
|
var svg = () => {
|
|
return { 'svg-gradient': function(direction) {
|
|
let stops;
|
|
let gradientDirectionSvg;
|
|
let gradientType = 'linear';
|
|
let rectangleDimension = 'x="0" y="0" width="1" height="1"';
|
|
const renderEnv = {compress: false};
|
|
let returner;
|
|
const directionValue = direction.toCSS(renderEnv);
|
|
let i;
|
|
let color;
|
|
let position;
|
|
let positionValue;
|
|
let alpha;
|
|
|
|
function throwArgumentDescriptor() {
|
|
throw { type: 'Argument',
|
|
message: 'svg-gradient expects direction, start_color [start_position], [color position,]...,' +
|
|
' end_color [end_position] or direction, color list' };
|
|
}
|
|
|
|
if (arguments.length == 2) {
|
|
if (arguments[1].value.length < 2) {
|
|
throwArgumentDescriptor();
|
|
}
|
|
stops = arguments[1].value;
|
|
} else if (arguments.length < 3) {
|
|
throwArgumentDescriptor();
|
|
} else {
|
|
stops = Array.prototype.slice.call(arguments, 1);
|
|
}
|
|
|
|
switch (directionValue) {
|
|
case 'to bottom':
|
|
gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"';
|
|
break;
|
|
case 'to right':
|
|
gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"';
|
|
break;
|
|
case 'to bottom right':
|
|
gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"';
|
|
break;
|
|
case 'to top right':
|
|
gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"';
|
|
break;
|
|
case 'ellipse':
|
|
case 'ellipse at center':
|
|
gradientType = 'radial';
|
|
gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"';
|
|
rectangleDimension = 'x="-50" y="-50" width="101" height="101"';
|
|
break;
|
|
default:
|
|
throw { type: 'Argument', message: 'svg-gradient direction must be \'to bottom\', \'to right\',' +
|
|
' \'to bottom right\', \'to top right\' or \'ellipse at center\'' };
|
|
}
|
|
returner = `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1 1"><${gradientType}Gradient id="g" ${gradientDirectionSvg}>`;
|
|
|
|
for (i = 0; i < stops.length; i += 1) {
|
|
if (stops[i] instanceof Expression) {
|
|
color = stops[i].value[0];
|
|
position = stops[i].value[1];
|
|
} else {
|
|
color = stops[i];
|
|
position = undefined;
|
|
}
|
|
|
|
if (!(color instanceof Color) || (!((i === 0 || i + 1 === stops.length) && position === undefined) && !(position instanceof Dimension))) {
|
|
throwArgumentDescriptor();
|
|
}
|
|
positionValue = position ? position.toCSS(renderEnv) : i === 0 ? '0%' : '100%';
|
|
alpha = color.alpha;
|
|
returner += `<stop offset="${positionValue}" stop-color="${color.toRGB()}"${alpha < 1 ? ` stop-opacity="${alpha}"` : ''}/>`;
|
|
}
|
|
returner += `</${gradientType}Gradient><rect ${rectangleDimension} fill="url(#g)" /></svg>`;
|
|
|
|
returner = encodeURIComponent(returner);
|
|
|
|
returner = `data:image/svg+xml,${returner}`;
|
|
return new URL(new Quoted(`'${returner}'`, returner, false, this.index, this.currentFileInfo), this.index, this.currentFileInfo);
|
|
}};
|
|
};
|
|
|
|
const isa = (n, Type) => (n instanceof Type) ? Keyword.True : Keyword.False;
|
|
const isunit = (n, unit) => {
|
|
if (unit === undefined) {
|
|
throw { type: 'Argument', message: 'missing the required second argument to isunit.' };
|
|
}
|
|
unit = typeof unit.value === 'string' ? unit.value : unit;
|
|
if (typeof unit !== 'string') {
|
|
throw { type: 'Argument', message: 'Second argument to isunit should be a unit or a string.' };
|
|
}
|
|
return (n instanceof Dimension) && n.unit.is(unit) ? Keyword.True : Keyword.False;
|
|
};
|
|
|
|
var types = {
|
|
isruleset: function (n) {
|
|
return isa(n, DetachedRuleset);
|
|
},
|
|
iscolor: function (n) {
|
|
return isa(n, Color);
|
|
},
|
|
isnumber: function (n) {
|
|
return isa(n, Dimension);
|
|
},
|
|
isstring: function (n) {
|
|
return isa(n, Quoted);
|
|
},
|
|
iskeyword: function (n) {
|
|
return isa(n, Keyword);
|
|
},
|
|
isurl: function (n) {
|
|
return isa(n, URL);
|
|
},
|
|
ispixel: function (n) {
|
|
return isunit(n, 'px');
|
|
},
|
|
ispercentage: function (n) {
|
|
return isunit(n, '%');
|
|
},
|
|
isem: function (n) {
|
|
return isunit(n, 'em');
|
|
},
|
|
isunit,
|
|
unit: function (val, unit) {
|
|
if (!(val instanceof Dimension)) {
|
|
throw { type: 'Argument',
|
|
message: `the first argument to unit must be a number${val instanceof Operation ? '. Have you forgotten parenthesis?' : ''}` };
|
|
}
|
|
if (unit) {
|
|
if (unit instanceof Keyword) {
|
|
unit = unit.value;
|
|
} else {
|
|
unit = unit.toCSS();
|
|
}
|
|
} else {
|
|
unit = '';
|
|
}
|
|
return new Dimension(val.value, unit);
|
|
},
|
|
'get-unit': function (n) {
|
|
return new Anonymous(n.unit);
|
|
}
|
|
};
|
|
|
|
/** @param {*[]} args */
|
|
const styleExpression = function (args) {
|
|
args = Array.prototype.slice.call(args);
|
|
if (args.length === 0) {
|
|
throw { type: 'Argument', message: 'one or more arguments required' };
|
|
}
|
|
|
|
const entityList = [new Variable(args[0].value, this.index, this.currentFileInfo).eval(this.context)];
|
|
|
|
const result = entityList.map(a => { return a.toCSS(this.context); }).join(this.context.compress ? ',' : ', ');
|
|
|
|
return new Anonymous(`style(${result})`);
|
|
};
|
|
|
|
var style$1 = {
|
|
/** @param {...*} args */
|
|
style: function(...args) {
|
|
try {
|
|
return styleExpression.call(this, args);
|
|
} catch (e) {
|
|
// When style() is used as a CSS function (e.g. @container style(--responsive: true)),
|
|
// arguments won't be valid Less variables. Return undefined to let the
|
|
// parser fall through and treat it as plain CSS.
|
|
}
|
|
},
|
|
};
|
|
|
|
var functions = environment => {
|
|
const functions = { functionRegistry, functionCaller };
|
|
|
|
// register functions
|
|
functionRegistry.addMultiple(boolean$1);
|
|
functionRegistry.add('default', defaultFunc.eval.bind(defaultFunc));
|
|
functionRegistry.addMultiple(color);
|
|
functionRegistry.addMultiple(colorBlend);
|
|
functionRegistry.addMultiple(dataUri(environment));
|
|
functionRegistry.addMultiple(list);
|
|
functionRegistry.addMultiple(mathFunctions);
|
|
functionRegistry.addMultiple(number);
|
|
functionRegistry.addMultiple(string);
|
|
functionRegistry.addMultiple(svg());
|
|
functionRegistry.addMultiple(types);
|
|
functionRegistry.addMultiple(style$1);
|
|
|
|
return functions;
|
|
};
|
|
|
|
/**
|
|
* @param {import('./tree/node.js').default} root
|
|
* @param {{ variables?: Record<string, *>, compress?: boolean, pluginManager?: *, frames?: *[] }} options
|
|
* @returns {import('./tree/node.js').default}
|
|
*/
|
|
function transformTree(root, options) {
|
|
options = options || {};
|
|
let evaldRoot;
|
|
let variables = options.variables;
|
|
const evalEnv = new contexts.Eval(options);
|
|
|
|
//
|
|
// Allows setting variables with a hash, so:
|
|
//
|
|
// `{ color: new tree.Color('#f01') }` will become:
|
|
//
|
|
// new tree.Declaration('@color',
|
|
// new tree.Value([
|
|
// new tree.Expression([
|
|
// new tree.Color('#f01')
|
|
// ])
|
|
// ])
|
|
// )
|
|
//
|
|
if (typeof variables === 'object' && !Array.isArray(variables)) {
|
|
variables = Object.keys(variables).map(function (k) {
|
|
let value = variables[k];
|
|
|
|
if (!(value instanceof tree.Value)) {
|
|
if (!(value instanceof tree.Expression)) {
|
|
value = new tree.Expression([value]);
|
|
}
|
|
value = new tree.Value([value]);
|
|
}
|
|
return new tree.Declaration(`@${k}`, value, false, null, 0);
|
|
});
|
|
evalEnv.frames = [new tree.Ruleset(null, variables)];
|
|
}
|
|
|
|
const visitors$1 = [
|
|
new visitors.JoinSelectorVisitor(),
|
|
new visitors.MarkVisibleSelectorsVisitor(true),
|
|
new visitors.ExtendVisitor(),
|
|
new visitors.ToCSSVisitor({compress: Boolean(options.compress)})
|
|
];
|
|
|
|
const preEvalVisitors = [];
|
|
let v;
|
|
let visitorIterator;
|
|
|
|
/**
|
|
* first() / get() allows visitors to be added while visiting
|
|
*
|
|
* @todo Add scoping for visitors just like functions for @plugin; right now they're global
|
|
*/
|
|
if (options.pluginManager) {
|
|
visitorIterator = options.pluginManager.visitor();
|
|
for (let i = 0; i < 2; i++) {
|
|
visitorIterator.first();
|
|
while ((v = visitorIterator.get())) {
|
|
if (v.isPreEvalVisitor) {
|
|
if (i === 0 || preEvalVisitors.indexOf(v) === -1) {
|
|
preEvalVisitors.push(v);
|
|
v.run(root);
|
|
}
|
|
}
|
|
else {
|
|
if (i === 0 || visitors$1.indexOf(v) === -1) {
|
|
if (v.isPreVisitor) {
|
|
visitors$1.unshift(v);
|
|
}
|
|
else {
|
|
visitors$1.push(v);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
evaldRoot = root.eval(evalEnv);
|
|
|
|
for (let i = 0; i < visitors$1.length; i++) {
|
|
visitors$1[i].run(evaldRoot);
|
|
}
|
|
|
|
// Run any remaining visitors added after eval pass
|
|
if (options.pluginManager) {
|
|
visitorIterator.first();
|
|
while ((v = visitorIterator.get())) {
|
|
if (visitors$1.indexOf(v) === -1 && preEvalVisitors.indexOf(v) === -1) {
|
|
v.run(evaldRoot);
|
|
}
|
|
}
|
|
}
|
|
|
|
return evaldRoot;
|
|
}
|
|
|
|
/**
|
|
* Plugin Manager
|
|
*/
|
|
class PluginManager {
|
|
constructor(less) {
|
|
this.less = less;
|
|
this.visitors = [];
|
|
this.preProcessors = [];
|
|
this.postProcessors = [];
|
|
this.installedPlugins = [];
|
|
this.fileManagers = [];
|
|
this.iterator = -1;
|
|
this.pluginCache = {};
|
|
this.Loader = new less.PluginLoader(less);
|
|
}
|
|
|
|
/**
|
|
* Adds all the plugins in the array
|
|
* @param {Array} plugins
|
|
*/
|
|
addPlugins(plugins) {
|
|
if (plugins) {
|
|
for (let i = 0; i < plugins.length; i++) {
|
|
this.addPlugin(plugins[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param plugin
|
|
* @param {String} filename
|
|
*/
|
|
addPlugin(plugin, filename, functionRegistry) {
|
|
this.installedPlugins.push(plugin);
|
|
if (filename) {
|
|
this.pluginCache[filename] = plugin;
|
|
}
|
|
if (plugin.install) {
|
|
plugin.install(this.less, this, functionRegistry || this.less.functions.functionRegistry);
|
|
}
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param filename
|
|
*/
|
|
get(filename) {
|
|
return this.pluginCache[filename];
|
|
}
|
|
|
|
/**
|
|
* Adds a visitor. The visitor object has options on itself to determine
|
|
* when it should run.
|
|
* @param visitor
|
|
*/
|
|
addVisitor(visitor) {
|
|
this.visitors.push(visitor);
|
|
}
|
|
|
|
/**
|
|
* Adds a pre processor object
|
|
* @param {object} preProcessor
|
|
* @param {number} priority - guidelines 1 = before import, 1000 = import, 2000 = after import
|
|
*/
|
|
addPreProcessor(preProcessor, priority) {
|
|
let indexToInsertAt;
|
|
for (indexToInsertAt = 0; indexToInsertAt < this.preProcessors.length; indexToInsertAt++) {
|
|
if (this.preProcessors[indexToInsertAt].priority >= priority) {
|
|
break;
|
|
}
|
|
}
|
|
this.preProcessors.splice(indexToInsertAt, 0, {preProcessor, priority});
|
|
}
|
|
|
|
/**
|
|
* Adds a post processor object
|
|
* @param {object} postProcessor
|
|
* @param {number} priority - guidelines 1 = before compression, 1000 = compression, 2000 = after compression
|
|
*/
|
|
addPostProcessor(postProcessor, priority) {
|
|
let indexToInsertAt;
|
|
for (indexToInsertAt = 0; indexToInsertAt < this.postProcessors.length; indexToInsertAt++) {
|
|
if (this.postProcessors[indexToInsertAt].priority >= priority) {
|
|
break;
|
|
}
|
|
}
|
|
this.postProcessors.splice(indexToInsertAt, 0, {postProcessor, priority});
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param manager
|
|
*/
|
|
addFileManager(manager) {
|
|
this.fileManagers.push(manager);
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @returns {Array}
|
|
* @private
|
|
*/
|
|
getPreProcessors() {
|
|
const preProcessors = [];
|
|
for (let i = 0; i < this.preProcessors.length; i++) {
|
|
preProcessors.push(this.preProcessors[i].preProcessor);
|
|
}
|
|
return preProcessors;
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @returns {Array}
|
|
* @private
|
|
*/
|
|
getPostProcessors() {
|
|
const postProcessors = [];
|
|
for (let i = 0; i < this.postProcessors.length; i++) {
|
|
postProcessors.push(this.postProcessors[i].postProcessor);
|
|
}
|
|
return postProcessors;
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @returns {Array}
|
|
* @private
|
|
*/
|
|
getVisitors() {
|
|
return this.visitors;
|
|
}
|
|
|
|
visitor() {
|
|
const self = this;
|
|
return {
|
|
first: function() {
|
|
self.iterator = -1;
|
|
return self.visitors[self.iterator];
|
|
},
|
|
get: function() {
|
|
self.iterator += 1;
|
|
return self.visitors[self.iterator];
|
|
}
|
|
};
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @returns {Array}
|
|
* @private
|
|
*/
|
|
getFileManagers() {
|
|
return this.fileManagers;
|
|
}
|
|
}
|
|
|
|
let pm;
|
|
|
|
const PluginManagerFactory = function(less, newFactory) {
|
|
if (newFactory || !pm) {
|
|
pm = new PluginManager(less);
|
|
}
|
|
return pm;
|
|
};
|
|
|
|
function SourceMapOutput (environment) {
|
|
class SourceMapOutput {
|
|
constructor(options) {
|
|
this._css = [];
|
|
this._rootNode = options.rootNode;
|
|
this._contentsMap = options.contentsMap;
|
|
this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap;
|
|
if (options.sourceMapFilename) {
|
|
this._sourceMapFilename = options.sourceMapFilename.replace(/\\/g, '/');
|
|
}
|
|
this._outputFilename = options.outputFilename ? options.outputFilename.replace(/\\/g, '/') : options.outputFilename;
|
|
this.sourceMapURL = options.sourceMapURL;
|
|
if (options.sourceMapBasepath) {
|
|
this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/');
|
|
}
|
|
if (options.sourceMapRootpath) {
|
|
this._sourceMapRootpath = options.sourceMapRootpath.replace(/\\/g, '/');
|
|
if (this._sourceMapRootpath.charAt(this._sourceMapRootpath.length - 1) !== '/') {
|
|
this._sourceMapRootpath += '/';
|
|
}
|
|
} else {
|
|
this._sourceMapRootpath = '';
|
|
}
|
|
this._outputSourceFiles = options.outputSourceFiles;
|
|
this._sourceMapGeneratorConstructor = environment.getSourceMapGenerator();
|
|
|
|
this._lineNumber = 0;
|
|
this._column = 0;
|
|
}
|
|
|
|
removeBasepath(path) {
|
|
if (this._sourceMapBasepath && path.indexOf(this._sourceMapBasepath) === 0) {
|
|
path = path.substring(this._sourceMapBasepath.length);
|
|
if (path.charAt(0) === '\\' || path.charAt(0) === '/') {
|
|
path = path.substring(1);
|
|
}
|
|
}
|
|
|
|
return path;
|
|
}
|
|
|
|
normalizeFilename(filename) {
|
|
filename = filename.replace(/\\/g, '/');
|
|
filename = this.removeBasepath(filename);
|
|
return (this._sourceMapRootpath || '') + filename;
|
|
}
|
|
|
|
add(chunk, fileInfo, index, mapLines) {
|
|
|
|
// ignore adding empty strings
|
|
if (!chunk) {
|
|
return;
|
|
}
|
|
|
|
let lines, sourceLines, columns, sourceColumns, i;
|
|
|
|
if (fileInfo && fileInfo.filename) {
|
|
let inputSource = this._contentsMap[fileInfo.filename];
|
|
|
|
// remove vars/banner added to the top of the file
|
|
if (this._contentsIgnoredCharsMap[fileInfo.filename]) {
|
|
// adjust the index
|
|
index -= this._contentsIgnoredCharsMap[fileInfo.filename];
|
|
if (index < 0) { index = 0; }
|
|
// adjust the source
|
|
inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]);
|
|
}
|
|
|
|
/**
|
|
* ignore empty content, or failsafe
|
|
* if contents map is incorrect
|
|
*/
|
|
if (inputSource === undefined) {
|
|
this._css.push(chunk);
|
|
return;
|
|
}
|
|
|
|
inputSource = inputSource.substring(0, index);
|
|
sourceLines = inputSource.split('\n');
|
|
sourceColumns = sourceLines[sourceLines.length - 1];
|
|
}
|
|
|
|
lines = chunk.split('\n');
|
|
columns = lines[lines.length - 1];
|
|
|
|
if (fileInfo && fileInfo.filename) {
|
|
if (!mapLines) {
|
|
this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column},
|
|
original: { line: sourceLines.length, column: sourceColumns.length},
|
|
source: this.normalizeFilename(fileInfo.filename)});
|
|
} else {
|
|
for (i = 0; i < lines.length; i++) {
|
|
this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0},
|
|
original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0},
|
|
source: this.normalizeFilename(fileInfo.filename)});
|
|
}
|
|
}
|
|
}
|
|
|
|
if (lines.length === 1) {
|
|
this._column += columns.length;
|
|
} else {
|
|
this._lineNumber += lines.length - 1;
|
|
this._column = columns.length;
|
|
}
|
|
|
|
this._css.push(chunk);
|
|
}
|
|
|
|
isEmpty() {
|
|
return this._css.length === 0;
|
|
}
|
|
|
|
toCSS(context) {
|
|
this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null });
|
|
|
|
if (this._outputSourceFiles) {
|
|
for (const filename in this._contentsMap) {
|
|
// eslint-disable-next-line no-prototype-builtins
|
|
if (this._contentsMap.hasOwnProperty(filename)) {
|
|
let source = this._contentsMap[filename];
|
|
if (this._contentsIgnoredCharsMap[filename]) {
|
|
source = source.slice(this._contentsIgnoredCharsMap[filename]);
|
|
}
|
|
this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source);
|
|
}
|
|
}
|
|
}
|
|
|
|
this._rootNode.genCSS(context, this);
|
|
|
|
if (this._css.length > 0) {
|
|
let sourceMapURL;
|
|
const sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON());
|
|
|
|
if (this.sourceMapURL) {
|
|
sourceMapURL = this.sourceMapURL;
|
|
} else if (this._sourceMapFilename) {
|
|
sourceMapURL = this._sourceMapFilename;
|
|
}
|
|
this.sourceMapURL = sourceMapURL;
|
|
|
|
this.sourceMap = sourceMapContent;
|
|
}
|
|
|
|
return this._css.join('');
|
|
}
|
|
}
|
|
|
|
return SourceMapOutput;
|
|
}
|
|
|
|
function SourceMapBuilder (SourceMapOutput, environment) {
|
|
class SourceMapBuilder {
|
|
constructor(options) {
|
|
this.options = options;
|
|
}
|
|
|
|
toCSS(rootNode, options, imports) {
|
|
const sourceMapOutput = new SourceMapOutput(
|
|
{
|
|
contentsIgnoredCharsMap: imports.contentsIgnoredChars,
|
|
rootNode,
|
|
contentsMap: imports.contents,
|
|
sourceMapFilename: this.options.sourceMapFilename,
|
|
sourceMapURL: this.options.sourceMapURL,
|
|
outputFilename: this.options.sourceMapOutputFilename,
|
|
sourceMapBasepath: this.options.sourceMapBasepath,
|
|
sourceMapRootpath: this.options.sourceMapRootpath,
|
|
outputSourceFiles: this.options.outputSourceFiles,
|
|
sourceMapGenerator: this.options.sourceMapGenerator,
|
|
sourceMapFileInline: this.options.sourceMapFileInline,
|
|
disableSourcemapAnnotation: this.options.disableSourcemapAnnotation
|
|
});
|
|
|
|
const css = sourceMapOutput.toCSS(options);
|
|
this.sourceMap = sourceMapOutput.sourceMap;
|
|
this.sourceMapURL = sourceMapOutput.sourceMapURL;
|
|
if (this.options.sourceMapInputFilename) {
|
|
this.sourceMapInputFilename = sourceMapOutput.normalizeFilename(this.options.sourceMapInputFilename);
|
|
}
|
|
if (this.options.sourceMapBasepath !== undefined && this.sourceMapURL !== undefined) {
|
|
this.sourceMapURL = sourceMapOutput.removeBasepath(this.sourceMapURL);
|
|
}
|
|
return css + this.getCSSAppendage();
|
|
}
|
|
|
|
getCSSAppendage() {
|
|
|
|
let sourceMapURL = this.sourceMapURL;
|
|
if (this.options.sourceMapFileInline) {
|
|
if (this.sourceMap === undefined) {
|
|
return '';
|
|
}
|
|
sourceMapURL = `data:application/json;base64,${environment.encodeBase64(this.sourceMap)}`;
|
|
}
|
|
|
|
if (this.options.disableSourcemapAnnotation) {
|
|
return '';
|
|
}
|
|
|
|
if (sourceMapURL) {
|
|
return `/*# sourceMappingURL=${sourceMapURL} */`;
|
|
}
|
|
return '';
|
|
}
|
|
|
|
getExternalSourceMap() {
|
|
return this.sourceMap;
|
|
}
|
|
|
|
setExternalSourceMap(sourceMap) {
|
|
this.sourceMap = sourceMap;
|
|
}
|
|
|
|
isInline() {
|
|
return this.options.sourceMapFileInline;
|
|
}
|
|
|
|
getSourceMapURL() {
|
|
return this.sourceMapURL;
|
|
}
|
|
|
|
getOutputFilename() {
|
|
return this.options.sourceMapOutputFilename;
|
|
}
|
|
|
|
getInputFilename() {
|
|
return this.sourceMapInputFilename;
|
|
}
|
|
}
|
|
|
|
return SourceMapBuilder;
|
|
}
|
|
|
|
function ParseTree(SourceMapBuilder) {
|
|
class ParseTree {
|
|
constructor(root, imports) {
|
|
this.root = root;
|
|
this.imports = imports;
|
|
}
|
|
|
|
toCSS(options) {
|
|
let evaldRoot;
|
|
const result = {};
|
|
let sourceMapBuilder;
|
|
try {
|
|
evaldRoot = transformTree(this.root, options);
|
|
} catch (e) {
|
|
throw new LessError(e, this.imports);
|
|
}
|
|
|
|
try {
|
|
const compress = Boolean(options.compress);
|
|
if (compress) {
|
|
logger$1.warn('The compress option has been deprecated. ' +
|
|
'We recommend you use a dedicated css minifier, for instance see less-plugin-clean-css.');
|
|
}
|
|
|
|
const toCSSOptions = {
|
|
compress,
|
|
// @deprecated The dumpLineNumbers option is deprecated. Use sourcemaps instead. All modes will be removed in a future version.
|
|
dumpLineNumbers: options.dumpLineNumbers,
|
|
strictUnits: Boolean(options.strictUnits),
|
|
numPrecision: 8};
|
|
|
|
if (options.sourceMap) {
|
|
// Normalize sourceMap option: if it's just true, convert to object
|
|
if (options.sourceMap === true) {
|
|
options.sourceMap = {};
|
|
}
|
|
const sourceMapOpts = options.sourceMap;
|
|
|
|
// Set sourceMapInputFilename if not set and filename is available
|
|
if (!sourceMapOpts.sourceMapInputFilename && options.filename) {
|
|
sourceMapOpts.sourceMapInputFilename = options.filename;
|
|
}
|
|
|
|
// Default sourceMapBasepath to the input file's directory if not set
|
|
// This matches the behavior documented and implemented in bin/lessc
|
|
if (sourceMapOpts.sourceMapBasepath === undefined && options.filename) {
|
|
// Get directory from filename using string manipulation (works cross-platform)
|
|
const lastSlash = Math.max(options.filename.lastIndexOf('/'), options.filename.lastIndexOf('\\'));
|
|
if (lastSlash >= 0) {
|
|
sourceMapOpts.sourceMapBasepath = options.filename.substring(0, lastSlash);
|
|
} else {
|
|
// No directory separator found, use current directory
|
|
sourceMapOpts.sourceMapBasepath = '.';
|
|
}
|
|
}
|
|
|
|
// Handle sourceMapFullFilename (CLI-specific: --source-map=filename)
|
|
// This is converted to sourceMapFilename and sourceMapOutputFilename
|
|
if (sourceMapOpts.sourceMapFullFilename && !sourceMapOpts.sourceMapFileInline) {
|
|
// This case is handled by lessc before calling render
|
|
// We just need to ensure sourceMapFilename is set if sourceMapFullFilename is provided
|
|
if (!sourceMapOpts.sourceMapFilename && !sourceMapOpts.sourceMapURL) {
|
|
// Extract just the basename for the sourceMappingURL comment
|
|
const mapBase = sourceMapOpts.sourceMapFullFilename.split(/[/\\]/).pop();
|
|
sourceMapOpts.sourceMapFilename = mapBase;
|
|
}
|
|
} else if (!sourceMapOpts.sourceMapFilename && !sourceMapOpts.sourceMapURL) {
|
|
// If sourceMapFilename is not set and sourceMapURL is not set,
|
|
// derive it from the output filename (if available) or input filename
|
|
if (sourceMapOpts.sourceMapOutputFilename) {
|
|
// Use output filename + .map
|
|
sourceMapOpts.sourceMapFilename = sourceMapOpts.sourceMapOutputFilename + '.map';
|
|
} else if (options.filename) {
|
|
// Fallback to input filename + .css.map (basename only)
|
|
const inputBasename = options.filename.split(/[/\\]/).pop().replace(/\.[^/.]+$/, '');
|
|
sourceMapOpts.sourceMapFilename = inputBasename + '.css.map';
|
|
}
|
|
}
|
|
|
|
// Default sourceMapOutputFilename if not set
|
|
if (!sourceMapOpts.sourceMapOutputFilename) {
|
|
if (options.filename) {
|
|
const inputBasename = options.filename.split(/[/\\]/).pop().replace(/\.[^/.]+$/, '');
|
|
sourceMapOpts.sourceMapOutputFilename = inputBasename + '.css';
|
|
} else {
|
|
sourceMapOpts.sourceMapOutputFilename = 'output.css';
|
|
}
|
|
}
|
|
|
|
sourceMapBuilder = new SourceMapBuilder(sourceMapOpts);
|
|
result.css = sourceMapBuilder.toCSS(evaldRoot, toCSSOptions, this.imports);
|
|
} else {
|
|
result.css = evaldRoot.toCSS(toCSSOptions);
|
|
}
|
|
} catch (e) {
|
|
throw new LessError(e, this.imports);
|
|
}
|
|
|
|
if (options.pluginManager) {
|
|
const postProcessors = options.pluginManager.getPostProcessors();
|
|
for (let i = 0; i < postProcessors.length; i++) {
|
|
result.css = postProcessors[i].process(result.css, { sourceMap: sourceMapBuilder, options, imports: this.imports });
|
|
}
|
|
}
|
|
if (options.sourceMap) {
|
|
result.map = sourceMapBuilder.getExternalSourceMap();
|
|
}
|
|
|
|
result.imports = [];
|
|
for (const file in this.imports.files) {
|
|
if (Object.prototype.hasOwnProperty.call(this.imports.files, file) && file !== this.imports.rootFilename) {
|
|
result.imports.push(file);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
}
|
|
|
|
return ParseTree;
|
|
}
|
|
|
|
function ImportManager(environment) {
|
|
// FileInfo = {
|
|
// 'rewriteUrls' - option - whether to adjust URL's to be relative
|
|
// 'filename' - full resolved filename of current file
|
|
// 'rootpath' - path to append to normal URLs for this node
|
|
// 'currentDirectory' - path to the current file, absolute
|
|
// 'rootFilename' - filename of the base file
|
|
// 'entryPath' - absolute path to the entry file
|
|
// 'reference' - whether the file should not be output and only output parts that are referenced
|
|
|
|
class ImportManager {
|
|
constructor(less, context, rootFileInfo) {
|
|
this.less = less;
|
|
this.rootFilename = rootFileInfo.filename;
|
|
this.paths = context.paths || []; // Search paths, when importing
|
|
this.contents = {}; // map - filename to contents of all the files
|
|
this.contentsIgnoredChars = {}; // map - filename to lines at the beginning of each file to ignore
|
|
this.mime = context.mime;
|
|
this.error = null;
|
|
this.context = context;
|
|
// Deprecated? Unused outside of here, could be useful.
|
|
this.queue = []; // Files which haven't been imported yet
|
|
this.files = {}; // Holds the imported parse trees.
|
|
}
|
|
|
|
/**
|
|
* Add an import to be imported
|
|
* @param path - the raw path
|
|
* @param tryAppendExtension - whether to try appending a file extension (.less or .js if the path has no extension)
|
|
* @param currentFileInfo - the current file info (used for instance to work out relative paths)
|
|
* @param importOptions - import options
|
|
* @param callback - callback for when it is imported
|
|
*/
|
|
push(path, tryAppendExtension, currentFileInfo, importOptions, callback) {
|
|
const importManager = this, pluginLoader = this.context.pluginManager.Loader;
|
|
|
|
this.queue.push(path);
|
|
|
|
const fileParsedFunc = function (e, root, fullPath) {
|
|
importManager.queue.splice(importManager.queue.indexOf(path), 1); // Remove the path from the queue
|
|
|
|
const importedEqualsRoot = fullPath === importManager.rootFilename;
|
|
if (importOptions.optional && e) {
|
|
callback(null, {rules:[]}, false, null);
|
|
logger$1.info(`The file ${fullPath} was skipped because it was not found and the import was marked optional.`);
|
|
}
|
|
else {
|
|
// Inline imports aren't cached here.
|
|
// If we start to cache them, please make sure they won't conflict with non-inline imports of the
|
|
// same name as they used to do before this comment and the condition below have been added.
|
|
if (!importManager.files[fullPath] && !importOptions.inline) {
|
|
importManager.files[fullPath] = { root, options: importOptions };
|
|
}
|
|
if (e && !importManager.error) { importManager.error = e; }
|
|
callback(e, root, importedEqualsRoot, fullPath);
|
|
}
|
|
};
|
|
|
|
const newFileInfo = {
|
|
rewriteUrls: this.context.rewriteUrls,
|
|
entryPath: currentFileInfo.entryPath,
|
|
rootpath: currentFileInfo.rootpath,
|
|
rootFilename: currentFileInfo.rootFilename
|
|
};
|
|
|
|
const fileManager = environment.getFileManager(path, currentFileInfo.currentDirectory, this.context, environment);
|
|
|
|
if (!fileManager) {
|
|
fileParsedFunc({ message: `Could not find a file-manager for ${path}` });
|
|
return;
|
|
}
|
|
|
|
const loadFileCallback = function(loadedFile) {
|
|
let plugin;
|
|
const resolvedFilename = loadedFile.filename;
|
|
const contents = loadedFile.contents.replace(/^\uFEFF/, '');
|
|
|
|
// Pass on an updated rootpath if path of imported file is relative and file
|
|
// is in a (sub|sup) directory
|
|
//
|
|
// Examples:
|
|
// - If path of imported file is 'module/nav/nav.less' and rootpath is 'less/',
|
|
// then rootpath should become 'less/module/nav/'
|
|
// - If path of imported file is '../mixins.less' and rootpath is 'less/',
|
|
// then rootpath should become 'less/../'
|
|
newFileInfo.currentDirectory = fileManager.getPath(resolvedFilename);
|
|
if (newFileInfo.rewriteUrls) {
|
|
newFileInfo.rootpath = fileManager.join(
|
|
(importManager.context.rootpath || ''),
|
|
fileManager.pathDiff(newFileInfo.currentDirectory, newFileInfo.entryPath));
|
|
|
|
if (!fileManager.isPathAbsolute(newFileInfo.rootpath) && fileManager.alwaysMakePathsAbsolute()) {
|
|
newFileInfo.rootpath = fileManager.join(newFileInfo.entryPath, newFileInfo.rootpath);
|
|
}
|
|
}
|
|
newFileInfo.filename = resolvedFilename;
|
|
|
|
const newEnv = new contexts.Parse(importManager.context);
|
|
|
|
newEnv.processImports = false;
|
|
importManager.contents[resolvedFilename] = contents;
|
|
|
|
if (currentFileInfo.reference || importOptions.reference) {
|
|
newFileInfo.reference = true;
|
|
}
|
|
|
|
if (importOptions.isPlugin) {
|
|
plugin = pluginLoader.evalPlugin(contents, newEnv, importManager, importOptions.pluginArgs, newFileInfo);
|
|
if (plugin instanceof LessError) {
|
|
fileParsedFunc(plugin, null, resolvedFilename);
|
|
}
|
|
else {
|
|
fileParsedFunc(null, plugin, resolvedFilename);
|
|
}
|
|
} else if (importOptions.inline) {
|
|
fileParsedFunc(null, contents, resolvedFilename);
|
|
} else {
|
|
// import (multiple) parse trees apparently get altered and can't be cached.
|
|
// TODO: investigate why this is
|
|
if (importManager.files[resolvedFilename]
|
|
&& !importManager.files[resolvedFilename].options.multiple
|
|
&& !importOptions.multiple) {
|
|
|
|
fileParsedFunc(null, importManager.files[resolvedFilename].root, resolvedFilename);
|
|
}
|
|
else {
|
|
new Parser(newEnv, importManager, newFileInfo).parse(contents, function (e, root) {
|
|
fileParsedFunc(e, root, resolvedFilename);
|
|
});
|
|
}
|
|
}
|
|
};
|
|
let loadedFile;
|
|
let promise;
|
|
const context = clone(this.context);
|
|
|
|
if (tryAppendExtension) {
|
|
context.ext = importOptions.isPlugin ? '.js' : '.less';
|
|
}
|
|
|
|
if (importOptions.isPlugin) {
|
|
context.mime = 'application/javascript';
|
|
|
|
if (context.syncImport) {
|
|
loadedFile = pluginLoader.loadPluginSync(path, currentFileInfo.currentDirectory, context, environment, fileManager);
|
|
} else {
|
|
promise = pluginLoader.loadPlugin(path, currentFileInfo.currentDirectory, context, environment, fileManager);
|
|
}
|
|
}
|
|
else {
|
|
if (context.syncImport) {
|
|
loadedFile = fileManager.loadFileSync(path, currentFileInfo.currentDirectory, context, environment);
|
|
} else {
|
|
promise = fileManager.loadFile(path, currentFileInfo.currentDirectory, context, environment,
|
|
(err, loadedFile) => {
|
|
if (err) {
|
|
fileParsedFunc(err);
|
|
} else {
|
|
loadFileCallback(loadedFile);
|
|
}
|
|
});
|
|
}
|
|
}
|
|
if (loadedFile) {
|
|
if (!loadedFile.filename) {
|
|
fileParsedFunc(loadedFile);
|
|
} else {
|
|
loadFileCallback(loadedFile);
|
|
}
|
|
} else if (promise) {
|
|
promise.then(loadFileCallback, fileParsedFunc);
|
|
}
|
|
}
|
|
}
|
|
|
|
return ImportManager;
|
|
}
|
|
|
|
function Parse(environment, ParseTree, ImportManager) {
|
|
const parse = function (input, options, callback) {
|
|
|
|
if (typeof options === 'function') {
|
|
callback = options;
|
|
options = copyOptions(this.options, {});
|
|
}
|
|
else {
|
|
options = copyOptions(this.options, options || {});
|
|
}
|
|
|
|
if (!callback) {
|
|
const self = this;
|
|
return new Promise(function (resolve, reject) {
|
|
parse.call(self, input, options, function(err, output) {
|
|
if (err) {
|
|
reject(err);
|
|
} else {
|
|
resolve(output);
|
|
}
|
|
});
|
|
});
|
|
} else {
|
|
let context;
|
|
let rootFileInfo;
|
|
const pluginManager = new PluginManagerFactory(this, !options.reUsePluginManager);
|
|
|
|
options.pluginManager = pluginManager;
|
|
|
|
context = new contexts.Parse(options);
|
|
|
|
if (options.rootFileInfo) {
|
|
rootFileInfo = options.rootFileInfo;
|
|
} else {
|
|
const filename = options.filename || 'input';
|
|
const entryPath = filename.replace(/[^/\\]*$/, '');
|
|
rootFileInfo = {
|
|
filename,
|
|
rewriteUrls: context.rewriteUrls,
|
|
rootpath: context.rootpath || '',
|
|
currentDirectory: entryPath,
|
|
entryPath,
|
|
rootFilename: filename
|
|
};
|
|
// add in a missing trailing slash
|
|
if (rootFileInfo.rootpath && rootFileInfo.rootpath.slice(-1) !== '/') {
|
|
rootFileInfo.rootpath += '/';
|
|
}
|
|
}
|
|
|
|
const imports = new ImportManager(this, context, rootFileInfo);
|
|
this.importManager = imports;
|
|
|
|
// TODO: allow the plugins to be just a list of paths or names
|
|
// Do an async plugin queue like lessc
|
|
|
|
if (options.plugins) {
|
|
options.plugins.forEach(function(plugin) {
|
|
let evalResult, contents;
|
|
if (plugin.fileContent) {
|
|
contents = plugin.fileContent.replace(/^\uFEFF/, '');
|
|
evalResult = pluginManager.Loader.evalPlugin(contents, context, imports, plugin.options, plugin.filename);
|
|
if (evalResult instanceof LessError) {
|
|
return callback(evalResult);
|
|
}
|
|
}
|
|
else {
|
|
pluginManager.addPlugin(plugin);
|
|
}
|
|
});
|
|
}
|
|
|
|
new Parser(context, imports, rootFileInfo)
|
|
.parse(input, function (e, root) {
|
|
if (e) { return callback(e); }
|
|
callback(null, root, imports, options);
|
|
}, options);
|
|
}
|
|
};
|
|
return parse;
|
|
}
|
|
|
|
function Render(environment, ParseTree) {
|
|
const render = function (input, options, callback) {
|
|
if (typeof options === 'function') {
|
|
callback = options;
|
|
options = copyOptions(this.options, {});
|
|
}
|
|
else {
|
|
options = copyOptions(this.options, options || {});
|
|
}
|
|
|
|
if (!callback) {
|
|
const self = this;
|
|
return new Promise(function (resolve, reject) {
|
|
render.call(self, input, options, function(err, output) {
|
|
if (err) {
|
|
reject(err);
|
|
} else {
|
|
resolve(output);
|
|
}
|
|
});
|
|
});
|
|
} else {
|
|
this.parse(input, options, function(err, root, imports, options) {
|
|
if (err) { return callback(err); }
|
|
|
|
let result;
|
|
try {
|
|
const parseTree = new ParseTree(root, imports);
|
|
result = parseTree.toCSS(options);
|
|
}
|
|
catch (err) { return callback(err); }
|
|
|
|
callback(null, result);
|
|
});
|
|
}
|
|
};
|
|
|
|
return render;
|
|
}
|
|
|
|
function parseNodeVersion(version) {
|
|
var match = version.match(/^v(\d{1,2})\.(\d{1,2})\.(\d{1,2})(?:-([0-9A-Za-z-.]+))?(?:\+([0-9A-Za-z-.]+))?$/); // eslint-disable-line max-len
|
|
if (!match) {
|
|
throw new Error('Unable to parse: ' + version);
|
|
}
|
|
|
|
var res = {
|
|
major: parseInt(match[1], 10),
|
|
minor: parseInt(match[2], 10),
|
|
patch: parseInt(match[3], 10),
|
|
pre: match[4] || '',
|
|
build: match[5] || '',
|
|
};
|
|
|
|
return res;
|
|
}
|
|
|
|
var parseNodeVersion_1 = parseNodeVersion;
|
|
|
|
function lessRoot(environment, fileManagers, version = '0.0.0') {
|
|
let sourceMapOutput, sourceMapBuilder, parseTree, importManager;
|
|
|
|
environment = new Environment(environment, fileManagers);
|
|
sourceMapOutput = SourceMapOutput(environment);
|
|
sourceMapBuilder = SourceMapBuilder(sourceMapOutput, environment);
|
|
parseTree = ParseTree(sourceMapBuilder);
|
|
importManager = ImportManager(environment);
|
|
|
|
const render = Render(environment, parseTree);
|
|
const parse = Parse(environment, parseTree, importManager);
|
|
|
|
const v = parseNodeVersion_1(`v${version}`);
|
|
const initial = {
|
|
version: [v.major, v.minor, v.patch],
|
|
data,
|
|
tree,
|
|
Environment,
|
|
AbstractFileManager,
|
|
AbstractPluginLoader,
|
|
environment,
|
|
visitors,
|
|
Parser,
|
|
functions: functions(environment),
|
|
contexts,
|
|
SourceMapOutput: sourceMapOutput,
|
|
SourceMapBuilder: sourceMapBuilder,
|
|
ParseTree: parseTree,
|
|
ImportManager: importManager,
|
|
render,
|
|
parse,
|
|
LessError,
|
|
transformTree,
|
|
utils,
|
|
PluginManager: PluginManagerFactory,
|
|
logger: logger$1
|
|
};
|
|
|
|
// Create a public API
|
|
|
|
const ctor = function(t) {
|
|
return function(...args) {
|
|
return new t(...args);
|
|
};
|
|
};
|
|
let t;
|
|
const api = Object.create(initial);
|
|
for (const n in initial.tree) {
|
|
/* eslint guard-for-in: 0 */
|
|
t = initial.tree[n];
|
|
if (typeof t === 'function') {
|
|
api[n.toLowerCase()] = ctor(t);
|
|
}
|
|
else {
|
|
api[n] = Object.create(null);
|
|
for (const o in t) {
|
|
/* eslint guard-for-in: 0 */
|
|
api[n][o.toLowerCase()] = ctor(t[o]);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Some of the functions assume a `this` context of the API object,
|
|
* which causes it to fail when wrapped for ES6 imports.
|
|
*
|
|
* An assumed `this` should be removed in the future.
|
|
*/
|
|
initial.parse = initial.parse.bind(api);
|
|
initial.render = initial.render.bind(api);
|
|
|
|
return api;
|
|
}
|
|
|
|
let options$1;
|
|
let logger;
|
|
let fileCache = {};
|
|
|
|
// TODOS - move log somewhere. pathDiff and doing something similar in node. use pathDiff in the other browser file for the initial load
|
|
const FileManager = function() {};
|
|
FileManager.prototype = Object.assign(new AbstractFileManager(), {
|
|
alwaysMakePathsAbsolute() {
|
|
return true;
|
|
},
|
|
|
|
join(basePath, laterPath) {
|
|
if (!basePath) {
|
|
return laterPath;
|
|
}
|
|
return this.extractUrlParts(laterPath, basePath).path;
|
|
},
|
|
|
|
doXHR(url, type, callback, errback) {
|
|
const xhr = new XMLHttpRequest();
|
|
const async = options$1.isFileProtocol ? options$1.fileAsync : true;
|
|
|
|
if (typeof xhr.overrideMimeType === 'function') {
|
|
xhr.overrideMimeType('text/css');
|
|
}
|
|
logger.debug(`XHR: Getting '${url}'`);
|
|
xhr.open('GET', url, async);
|
|
xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5');
|
|
xhr.send(null);
|
|
|
|
function handleResponse(xhr, callback, errback) {
|
|
if (xhr.status >= 200 && xhr.status < 300) {
|
|
callback(xhr.responseText,
|
|
xhr.getResponseHeader('Last-Modified'));
|
|
} else if (typeof errback === 'function') {
|
|
errback(xhr.status, url);
|
|
}
|
|
}
|
|
|
|
if (options$1.isFileProtocol && !options$1.fileAsync) {
|
|
if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) {
|
|
callback(xhr.responseText);
|
|
} else {
|
|
errback(xhr.status, url);
|
|
}
|
|
} else if (async) {
|
|
xhr.onreadystatechange = () => {
|
|
if (xhr.readyState == 4) {
|
|
handleResponse(xhr, callback, errback);
|
|
}
|
|
};
|
|
} else {
|
|
handleResponse(xhr, callback, errback);
|
|
}
|
|
},
|
|
|
|
supports() {
|
|
return true;
|
|
},
|
|
|
|
clearFileCache() {
|
|
fileCache = {};
|
|
},
|
|
|
|
loadFile(filename, currentDirectory, options) {
|
|
// TODO: Add prefix support like less-node?
|
|
// What about multiple paths?
|
|
|
|
if (currentDirectory && !this.isPathAbsolute(filename)) {
|
|
filename = currentDirectory + filename;
|
|
}
|
|
|
|
filename = options.ext ? this.tryAppendExtension(filename, options.ext) : filename;
|
|
|
|
options = options || {};
|
|
|
|
// sheet may be set to the stylesheet for the initial load or a collection of properties including
|
|
// some context variables for imports
|
|
const hrefParts = this.extractUrlParts(filename, window.location.href);
|
|
const href = hrefParts.url;
|
|
const self = this;
|
|
|
|
return new Promise((resolve, reject) => {
|
|
if (options.useFileCache && fileCache[href]) {
|
|
try {
|
|
const lessText = fileCache[href];
|
|
return resolve({ contents: lessText, filename: href, webInfo: { lastModified: new Date() }});
|
|
} catch (e) {
|
|
return reject({ filename: href, message: `Error loading file ${href} error was ${e.message}` });
|
|
}
|
|
}
|
|
|
|
self.doXHR(href, options.mime, function doXHRCallback(data, lastModified) {
|
|
// per file cache
|
|
fileCache[href] = data;
|
|
|
|
// Use remote copy (re-parse)
|
|
resolve({ contents: data, filename: href, webInfo: { lastModified }});
|
|
}, function doXHRError(status, url) {
|
|
reject({ type: 'File', message: `'${url}' wasn't found (${status})`, href });
|
|
});
|
|
});
|
|
}
|
|
});
|
|
|
|
var FM = (opts, log) => {
|
|
options$1 = opts;
|
|
logger = log;
|
|
return FileManager;
|
|
};
|
|
|
|
/**
|
|
* @todo Add tests for browser `@plugin`
|
|
*/
|
|
|
|
/**
|
|
* Browser Plugin Loader
|
|
*/
|
|
const PluginLoader = function(less) {
|
|
this.less = less;
|
|
// Should we shim this.require for browser? Probably not?
|
|
};
|
|
|
|
PluginLoader.prototype = Object.assign(new AbstractPluginLoader(), {
|
|
loadPlugin(filename, basePath, context, environment, fileManager) {
|
|
return new Promise((fulfill, reject) => {
|
|
fileManager.loadFile(filename, basePath, context, environment)
|
|
.then(fulfill).catch(reject);
|
|
});
|
|
}
|
|
});
|
|
|
|
var LogListener = (less, options) => {
|
|
const logLevel_debug = 4;
|
|
const logLevel_info = 3;
|
|
const logLevel_warn = 2;
|
|
const logLevel_error = 1;
|
|
|
|
// The amount of logging in the javascript console.
|
|
// 3 - Debug, information and errors
|
|
// 2 - Information and errors
|
|
// 1 - Errors
|
|
// 0 - None
|
|
// Defaults to 2
|
|
options.logLevel = typeof options.logLevel !== 'undefined' ? options.logLevel : (options.env === 'development' ? logLevel_info : logLevel_error);
|
|
|
|
if (!options.loggers) {
|
|
options.loggers = [{
|
|
debug: function(msg) {
|
|
if (options.logLevel >= logLevel_debug) {
|
|
console.log(msg);
|
|
}
|
|
},
|
|
info: function(msg) {
|
|
if (options.logLevel >= logLevel_info) {
|
|
console.log(msg);
|
|
}
|
|
},
|
|
warn: function(msg) {
|
|
if (options.logLevel >= logLevel_warn) {
|
|
console.warn(msg);
|
|
}
|
|
},
|
|
error: function(msg) {
|
|
if (options.logLevel >= logLevel_error) {
|
|
console.error(msg);
|
|
}
|
|
}
|
|
}];
|
|
}
|
|
for (let i = 0; i < options.loggers.length; i++) {
|
|
less.logger.addListener(options.loggers[i]);
|
|
}
|
|
};
|
|
|
|
var ErrorReporting = (window, less, options) => {
|
|
|
|
function errorHTML(e, rootHref) {
|
|
const id = `less-error-message:${extractId(rootHref || '')}`;
|
|
const template = '<li><label>{line}</label><pre class="{class}">{content}</pre></li>';
|
|
const elem = window.document.createElement('div');
|
|
let timer;
|
|
let content;
|
|
const errors = [];
|
|
const filename = e.filename || rootHref;
|
|
const filenameNoPath = filename.match(/([^/]+(\?.*)?)$/)[1];
|
|
|
|
elem.id = id;
|
|
elem.className = 'less-error-message';
|
|
|
|
content = `<h3>${e.type || 'Syntax'}Error: ${e.message || 'There is an error in your .less file'}` +
|
|
`</h3><p>in <a href="${filename}">${filenameNoPath}</a> `;
|
|
|
|
const errorline = (e, i, classname) => {
|
|
if (e.extract[i] !== undefined) {
|
|
errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1))
|
|
.replace(/\{class\}/, classname)
|
|
.replace(/\{content\}/, e.extract[i]));
|
|
}
|
|
};
|
|
|
|
if (e.line) {
|
|
errorline(e, 0, '');
|
|
errorline(e, 1, 'line');
|
|
errorline(e, 2, '');
|
|
content += `on line ${e.line}, column ${e.column + 1}:</p><ul>${errors.join('')}</ul>`;
|
|
}
|
|
if (e.stack && (e.extract || options.logLevel >= 4)) {
|
|
content += `<br/>Stack Trace</br />${e.stack.split('\n').slice(1).join('<br/>')}`;
|
|
}
|
|
elem.innerHTML = content;
|
|
|
|
// CSS for error messages
|
|
browser$1.createCSS(window.document, [
|
|
'.less-error-message ul, .less-error-message li {',
|
|
'list-style-type: none;',
|
|
'margin-right: 15px;',
|
|
'padding: 4px 0;',
|
|
'margin: 0;',
|
|
'}',
|
|
'.less-error-message label {',
|
|
'font-size: 12px;',
|
|
'margin-right: 15px;',
|
|
'padding: 4px 0;',
|
|
'color: #cc7777;',
|
|
'}',
|
|
'.less-error-message pre {',
|
|
'color: #dd6666;',
|
|
'padding: 4px 0;',
|
|
'margin: 0;',
|
|
'display: inline-block;',
|
|
'}',
|
|
'.less-error-message pre.line {',
|
|
'color: #ff0000;',
|
|
'}',
|
|
'.less-error-message h3 {',
|
|
'font-size: 20px;',
|
|
'font-weight: bold;',
|
|
'padding: 15px 0 5px 0;',
|
|
'margin: 0;',
|
|
'}',
|
|
'.less-error-message a {',
|
|
'color: #10a',
|
|
'}',
|
|
'.less-error-message .error {',
|
|
'color: red;',
|
|
'font-weight: bold;',
|
|
'padding-bottom: 2px;',
|
|
'border-bottom: 1px dashed red;',
|
|
'}'
|
|
].join('\n'), { title: 'error-message' });
|
|
|
|
elem.style.cssText = [
|
|
'font-family: Arial, sans-serif',
|
|
'border: 1px solid #e00',
|
|
'background-color: #eee',
|
|
'border-radius: 5px',
|
|
'-webkit-border-radius: 5px',
|
|
'-moz-border-radius: 5px',
|
|
'color: #e00',
|
|
'padding: 15px',
|
|
'margin-bottom: 15px'
|
|
].join(';');
|
|
|
|
if (options.env === 'development') {
|
|
timer = setInterval(() => {
|
|
const document = window.document;
|
|
const body = document.body;
|
|
if (body) {
|
|
if (document.getElementById(id)) {
|
|
body.replaceChild(elem, document.getElementById(id));
|
|
} else {
|
|
body.insertBefore(elem, body.firstChild);
|
|
}
|
|
clearInterval(timer);
|
|
}
|
|
}, 10);
|
|
}
|
|
}
|
|
|
|
function removeErrorHTML(path) {
|
|
const node = window.document.getElementById(`less-error-message:${extractId(path)}`);
|
|
if (node) {
|
|
node.parentNode.removeChild(node);
|
|
}
|
|
}
|
|
|
|
function removeError(path) {
|
|
if (!options.errorReporting || options.errorReporting === 'html') {
|
|
removeErrorHTML(path);
|
|
} else if (options.errorReporting === 'console') ; else if (typeof options.errorReporting === 'function') {
|
|
options.errorReporting('remove', path);
|
|
}
|
|
}
|
|
|
|
function errorConsole(e, rootHref) {
|
|
const template = '{line} {content}';
|
|
const filename = e.filename || rootHref;
|
|
const errors = [];
|
|
let content = `${e.type || 'Syntax'}Error: ${e.message || 'There is an error in your .less file'} in ${filename}`;
|
|
|
|
const errorline = (e, i, classname) => {
|
|
if (e.extract[i] !== undefined) {
|
|
errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1))
|
|
.replace(/\{class\}/, classname)
|
|
.replace(/\{content\}/, e.extract[i]));
|
|
}
|
|
};
|
|
|
|
if (e.line) {
|
|
errorline(e, 0, '');
|
|
errorline(e, 1, 'line');
|
|
errorline(e, 2, '');
|
|
content += ` on line ${e.line}, column ${e.column + 1}:\n${errors.join('\n')}`;
|
|
}
|
|
if (e.stack && (e.extract || options.logLevel >= 4)) {
|
|
content += `\nStack Trace\n${e.stack}`;
|
|
}
|
|
less.logger.error(content);
|
|
}
|
|
|
|
function error(e, rootHref) {
|
|
if (!options.errorReporting || options.errorReporting === 'html') {
|
|
errorHTML(e, rootHref);
|
|
} else if (options.errorReporting === 'console') {
|
|
errorConsole(e, rootHref);
|
|
} else if (typeof options.errorReporting === 'function') {
|
|
options.errorReporting('add', e, rootHref);
|
|
}
|
|
}
|
|
|
|
return {
|
|
add: error,
|
|
remove: removeError
|
|
};
|
|
};
|
|
|
|
// Cache system is a bit outdated and could do with work
|
|
|
|
var Cache = (window, options, logger) => {
|
|
let cache = null;
|
|
if (options.env !== 'development') {
|
|
try {
|
|
cache = (typeof window.localStorage === 'undefined') ? null : window.localStorage;
|
|
} catch (_) {}
|
|
}
|
|
return {
|
|
setCSS: function(path, lastModified, modifyVars, styles) {
|
|
if (cache) {
|
|
logger.info(`saving ${path} to cache.`);
|
|
try {
|
|
cache.setItem(path, styles);
|
|
cache.setItem(`${path}:timestamp`, lastModified);
|
|
if (modifyVars) {
|
|
cache.setItem(`${path}:vars`, JSON.stringify(modifyVars));
|
|
}
|
|
} catch (e) {
|
|
// TODO - could do with adding more robust error handling
|
|
logger.error(`failed to save "${path}" to local storage for caching.`);
|
|
}
|
|
}
|
|
},
|
|
getCSS: function(path, webInfo, modifyVars) {
|
|
const css = cache && cache.getItem(path);
|
|
const timestamp = cache && cache.getItem(`${path}:timestamp`);
|
|
let vars = cache && cache.getItem(`${path}:vars`);
|
|
|
|
modifyVars = modifyVars || {};
|
|
vars = vars || '{}'; // if not set, treat as the JSON representation of an empty object
|
|
|
|
if (timestamp && webInfo.lastModified &&
|
|
(new Date(webInfo.lastModified).valueOf() ===
|
|
new Date(timestamp).valueOf()) &&
|
|
JSON.stringify(modifyVars) === vars) {
|
|
// Use local copy
|
|
return css;
|
|
}
|
|
}
|
|
};
|
|
};
|
|
|
|
var ImageSize = () => {
|
|
function imageSize() {
|
|
throw {
|
|
type: 'Runtime',
|
|
message: 'Image size functions are not supported in browser version of less'
|
|
};
|
|
}
|
|
|
|
const imageFunctions = {
|
|
'image-size': function(filePathNode) {
|
|
imageSize();
|
|
return -1;
|
|
},
|
|
'image-width': function(filePathNode) {
|
|
imageSize();
|
|
return -1;
|
|
},
|
|
'image-height': function(filePathNode) {
|
|
imageSize();
|
|
return -1;
|
|
}
|
|
};
|
|
|
|
functionRegistry.addMultiple(imageFunctions);
|
|
};
|
|
|
|
var name = "less";
|
|
var version = "4.6.4";
|
|
var description = "Leaner CSS";
|
|
var homepage = "http://lesscss.org";
|
|
var author = {
|
|
name: "Alexis Sellier",
|
|
email: "self@cloudhead.net"
|
|
};
|
|
var contributors = [
|
|
"The Core Less Team"
|
|
];
|
|
var bugs = {
|
|
url: "https://github.com/less/less.js/issues"
|
|
};
|
|
var repository = {
|
|
type: "git",
|
|
url: "https://github.com/less/less.js.git"
|
|
};
|
|
var master = {
|
|
url: "https://github.com/less/less.js/blob/master/",
|
|
raw: "https://raw.githubusercontent.com/less/less.js/master/"
|
|
};
|
|
var license = "Apache-2.0";
|
|
var type = "module";
|
|
var bin = {
|
|
lessc: "./bin/lessc"
|
|
};
|
|
var main = "./dist/less-node.cjs";
|
|
var exports$1 = {
|
|
".": {
|
|
browser: "./dist/less.js",
|
|
"import": "./lib/less-node/index.js",
|
|
require: "./dist/less-node.cjs",
|
|
"default": "./lib/less-node/index.js"
|
|
},
|
|
"./lib/*": "./lib/*",
|
|
"./dist/less-node.cjs": "./dist/less-node.cjs",
|
|
"./dist/less.js": "./dist/less.js",
|
|
"./dist/less.min.js": "./dist/less.min.js"
|
|
};
|
|
var directories = {
|
|
test: "./test"
|
|
};
|
|
var files = [
|
|
"bin",
|
|
"lib",
|
|
"!lib/**/*.map",
|
|
"dist",
|
|
"index.cjs",
|
|
"README.md"
|
|
];
|
|
var browser = "./dist/less.js";
|
|
var engines = {
|
|
node: ">=18"
|
|
};
|
|
var scripts = {
|
|
quicktest: "grunt quicktest",
|
|
test: "grunt test",
|
|
"test:node": "grunt test:node",
|
|
"test:coverage": "c8 -r lcov -r json-summary -r text-summary -r html --include=\"lib/**/*.js\" --include=\"bin/**/*.js\" --exclude=\"dist/**\" --exclude=\"**/*.test.js\" --exclude=\"**/*.spec.js\" --exclude=\"test/**\" --exclude=\"tmp/**\" --exclude=\"**/abstract-file-manager.js\" --exclude=\"**/abstract-plugin-loader.js\" grunt shell:test && node scripts/coverage-report.js && node scripts/coverage-lines.js",
|
|
grunt: "grunt",
|
|
lint: "eslint '**/*.{ts,js}'",
|
|
"lint:fix": "eslint '**/*.{ts,js}' --fix",
|
|
typecheck: "tsc --noEmit",
|
|
build: "node build/rollup.js --dist",
|
|
prepublishOnly: "npm run typecheck && grunt dist && grunt test:node"
|
|
};
|
|
var optionalDependencies = {
|
|
errno: "^0.1.1",
|
|
"graceful-fs": "^4.1.2",
|
|
"image-size": "~0.5.0",
|
|
"make-dir": "^2.1.0",
|
|
mime: "^1.4.1",
|
|
needle: "^3.1.0",
|
|
"source-map": "~0.6.0"
|
|
};
|
|
var devDependencies = {
|
|
"@less/test-data": "workspace:*",
|
|
"@less/test-import-module": "workspace:*",
|
|
"@rollup/plugin-commonjs": "^17.0.0",
|
|
"@rollup/plugin-json": "^4.1.0",
|
|
"@rollup/plugin-node-resolve": "^11.0.0",
|
|
"@types/node": "^18",
|
|
"@typescript-eslint/eslint-plugin": "^4.28.0",
|
|
"@typescript-eslint/parser": "^4.28.0",
|
|
benny: "^3.6.12",
|
|
"bootstrap-less-port": "0.3.0",
|
|
c8: "^10.1.3",
|
|
chai: "^4.2.0",
|
|
chalk: "^4.1.2",
|
|
cosmiconfig: "~9.0.0",
|
|
"cross-env": "^7.0.3",
|
|
eslint: "^7.29.0",
|
|
"fs-extra": "^8.1.0",
|
|
"git-rev": "^0.2.1",
|
|
glob: "~11.0.3",
|
|
globby: "^10.0.1",
|
|
grunt: "^1.5.0",
|
|
"grunt-cli": "^1.3.2",
|
|
"grunt-contrib-clean": "^1.0.0",
|
|
"grunt-contrib-connect": "^1.0.2",
|
|
"grunt-eslint": "^23.0.0",
|
|
"grunt-saucelabs": "^9.0.1",
|
|
"grunt-shell": "^1.3.0",
|
|
"html-template-tag": "^3.2.0",
|
|
"jest-diff": "~30.1.2",
|
|
"jit-grunt": "^0.10.0",
|
|
"less-plugin-autoprefix": "^1.5.1",
|
|
"less-plugin-clean-css": "^1.6.0",
|
|
minimist: "^1.2.0",
|
|
mocha: "^6.2.1",
|
|
"mocha-teamcity-reporter": "^3.0.0",
|
|
"npm-run-all": "^4.1.5",
|
|
"performance-now": "^0.2.0",
|
|
phin: "^2.2.3",
|
|
playwright: "1.50.1",
|
|
promise: "^7.1.1",
|
|
"read-glob": "^3.0.0",
|
|
resolve: "^1.17.0",
|
|
rollup: "^2.52.2",
|
|
"rollup-plugin-terser": "^5.1.1",
|
|
semver: "^6.3.0",
|
|
shx: "^0.3.2",
|
|
"time-grunt": "^1.3.0",
|
|
typescript: "^5.7.0",
|
|
uikit: "2.27.4",
|
|
url: "^0.11.4",
|
|
"path-browserify": "^1.0.1",
|
|
webpack: "^5.64.6",
|
|
"webpack-cli": "^5.1.4"
|
|
};
|
|
var keywords = [
|
|
"compile less",
|
|
"css nesting",
|
|
"css variable",
|
|
"css",
|
|
"gradients css",
|
|
"gradients css3",
|
|
"less compiler",
|
|
"less css",
|
|
"less mixins",
|
|
"less",
|
|
"less.js",
|
|
"lesscss",
|
|
"mixins",
|
|
"nested css",
|
|
"parser",
|
|
"preprocessor",
|
|
"bootstrap css",
|
|
"bootstrap less",
|
|
"style",
|
|
"styles",
|
|
"stylesheet",
|
|
"variables in css",
|
|
"css less"
|
|
];
|
|
var rawcurrent = "https://raw.github.com/less/less.js/v";
|
|
var sourcearchive = "https://github.com/less/less.js/archive/v";
|
|
var dependencies = {
|
|
"copy-anything": "^3.0.5",
|
|
"parse-node-version": "^1.0.1"
|
|
};
|
|
var gitHead = "1df9072ee9ebdadc791bf35dfb1dbc3ef9f1948f";
|
|
var pkg = {
|
|
name: name,
|
|
version: version,
|
|
description: description,
|
|
homepage: homepage,
|
|
author: author,
|
|
contributors: contributors,
|
|
bugs: bugs,
|
|
repository: repository,
|
|
master: master,
|
|
license: license,
|
|
type: type,
|
|
bin: bin,
|
|
main: main,
|
|
exports: exports$1,
|
|
directories: directories,
|
|
files: files,
|
|
browser: browser,
|
|
engines: engines,
|
|
scripts: scripts,
|
|
optionalDependencies: optionalDependencies,
|
|
devDependencies: devDependencies,
|
|
keywords: keywords,
|
|
rawcurrent: rawcurrent,
|
|
sourcearchive: sourcearchive,
|
|
dependencies: dependencies,
|
|
gitHead: gitHead
|
|
};
|
|
|
|
//
|
|
|
|
/**
|
|
* @param {Window} window
|
|
* @param {Object} options
|
|
*/
|
|
var root = (window, options) => {
|
|
const document = window.document;
|
|
const less = lessRoot(undefined, undefined, pkg.version);
|
|
|
|
less.options = options;
|
|
const environment = less.environment;
|
|
const FileManager = FM(options, less.logger);
|
|
const fileManager = new FileManager();
|
|
environment.addFileManager(fileManager);
|
|
less.FileManager = FileManager;
|
|
less.PluginLoader = PluginLoader;
|
|
|
|
LogListener(less, options);
|
|
const errors = ErrorReporting(window, less, options);
|
|
const cache = less.cache = options.cache || Cache(window, options, less.logger);
|
|
ImageSize(less.environment);
|
|
|
|
// Setup user functions - Deprecate?
|
|
if (options.functions) {
|
|
less.functions.functionRegistry.addMultiple(options.functions);
|
|
}
|
|
|
|
const typePattern = /^text\/(x-)?less$/;
|
|
|
|
function clone(obj) {
|
|
const cloned = {};
|
|
for (const prop in obj) {
|
|
if (Object.prototype.hasOwnProperty.call(obj, prop)) {
|
|
cloned[prop] = obj[prop];
|
|
}
|
|
}
|
|
return cloned;
|
|
}
|
|
|
|
function loadStyles(modifyVars) {
|
|
const styles = document.getElementsByTagName('style');
|
|
|
|
for (let style of styles) {
|
|
if (style.type.match(typePattern)) {
|
|
const instanceOptions = {
|
|
...clone(options),
|
|
modifyVars,
|
|
filename: document.location.href.replace(/#.*$/, '')
|
|
};
|
|
|
|
const lessText = style.innerHTML || '';
|
|
|
|
/* jshint loopfunc:true */
|
|
less.render(lessText, instanceOptions, (err, result) => {
|
|
if (err) {
|
|
errors.add(err, 'inline');
|
|
} else {
|
|
style.type = 'text/css';
|
|
if (style.styleSheet) {
|
|
style.styleSheet.cssText = result.css;
|
|
} else {
|
|
style.innerHTML = result.css;
|
|
}
|
|
}
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
function loadStyleSheet(sheet, callback, reload, remaining, modifyVars) {
|
|
|
|
const instanceOptions = clone(options);
|
|
addDataAttr(instanceOptions, sheet);
|
|
instanceOptions.mime = sheet.type;
|
|
|
|
if (modifyVars) {
|
|
instanceOptions.modifyVars = modifyVars;
|
|
}
|
|
|
|
function loadInitialFileCallback(loadedFile) {
|
|
const data = loadedFile.contents;
|
|
const path = loadedFile.filename;
|
|
const webInfo = loadedFile.webInfo;
|
|
|
|
const newFileInfo = {
|
|
currentDirectory: fileManager.getPath(path),
|
|
filename: path,
|
|
rootFilename: path,
|
|
rewriteUrls: instanceOptions.rewriteUrls
|
|
};
|
|
|
|
newFileInfo.entryPath = newFileInfo.currentDirectory;
|
|
newFileInfo.rootpath = instanceOptions.rootpath || newFileInfo.currentDirectory;
|
|
|
|
if (webInfo) {
|
|
webInfo.remaining = remaining;
|
|
|
|
const css = cache.getCSS(path, webInfo, instanceOptions.modifyVars);
|
|
if (!reload && css) {
|
|
webInfo.local = true;
|
|
callback(null, css, data, sheet, webInfo, path);
|
|
return;
|
|
}
|
|
|
|
}
|
|
|
|
// TODO add tests around how this behaves when reloading
|
|
errors.remove(path);
|
|
|
|
instanceOptions.rootFileInfo = newFileInfo;
|
|
less.render(data, instanceOptions, (e, result) => {
|
|
if (e) {
|
|
e.href = path;
|
|
callback(e);
|
|
} else {
|
|
cache.setCSS(sheet.href, webInfo.lastModified, instanceOptions.modifyVars, result.css);
|
|
callback(null, result.css, data, sheet, webInfo, path);
|
|
}
|
|
});
|
|
}
|
|
|
|
fileManager.loadFile(sheet.href, null, instanceOptions, environment)
|
|
.then(loadedFile => {
|
|
loadInitialFileCallback(loadedFile);
|
|
}).catch(err => {
|
|
console.log(err);
|
|
callback(err);
|
|
});
|
|
|
|
}
|
|
|
|
function loadStyleSheets(callback, reload, modifyVars) {
|
|
for (let i = 0; i < less.sheets.length; i++) {
|
|
loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1), modifyVars);
|
|
}
|
|
}
|
|
|
|
function initRunningMode() {
|
|
if (less.env === 'development') {
|
|
less.watchTimer = setInterval(() => {
|
|
if (less.watchMode) {
|
|
fileManager.clearFileCache();
|
|
/**
|
|
* @todo remove when this is typed with JSDoc
|
|
*/
|
|
// eslint-disable-next-line no-unused-vars
|
|
loadStyleSheets((e, css, _, sheet, webInfo) => {
|
|
if (e) {
|
|
errors.add(e, e.href || sheet.href);
|
|
} else if (css) {
|
|
browser$1.createCSS(window.document, css, sheet);
|
|
}
|
|
});
|
|
}
|
|
}, options.poll);
|
|
}
|
|
}
|
|
|
|
//
|
|
// Watch mode
|
|
//
|
|
less.watch = function () {
|
|
if (!less.watchMode ) {
|
|
less.env = 'development';
|
|
initRunningMode();
|
|
}
|
|
this.watchMode = true;
|
|
return true;
|
|
};
|
|
|
|
less.unwatch = function () {clearInterval(less.watchTimer); this.watchMode = false; return false; };
|
|
|
|
//
|
|
// Synchronously get all <link> tags with the 'rel' attribute set to
|
|
// "stylesheet/less".
|
|
//
|
|
less.registerStylesheetsImmediately = () => {
|
|
const links = document.getElementsByTagName('link');
|
|
less.sheets = [];
|
|
|
|
for (let i = 0; i < links.length; i++) {
|
|
if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) &&
|
|
(links[i].type.match(typePattern)))) {
|
|
less.sheets.push(links[i]);
|
|
}
|
|
}
|
|
};
|
|
|
|
//
|
|
// Asynchronously get all <link> tags with the 'rel' attribute set to
|
|
// "stylesheet/less", returning a Promise.
|
|
//
|
|
less.registerStylesheets = () => new Promise((resolve) => {
|
|
less.registerStylesheetsImmediately();
|
|
resolve();
|
|
});
|
|
|
|
//
|
|
// With this function, it's possible to alter variables and re-render
|
|
// CSS without reloading less-files
|
|
//
|
|
less.modifyVars = record => less.refresh(true, record, false);
|
|
|
|
less.refresh = (reload, modifyVars, clearFileCache) => {
|
|
if ((reload || clearFileCache) && clearFileCache !== false) {
|
|
fileManager.clearFileCache();
|
|
}
|
|
return new Promise((resolve, reject) => {
|
|
let startTime;
|
|
let endTime;
|
|
let totalMilliseconds;
|
|
let remainingSheets;
|
|
startTime = endTime = new Date();
|
|
|
|
// Set counter for remaining unprocessed sheets
|
|
remainingSheets = less.sheets.length;
|
|
|
|
if (remainingSheets === 0) {
|
|
|
|
endTime = new Date();
|
|
totalMilliseconds = endTime - startTime;
|
|
less.logger.info('Less has finished and no sheets were loaded.');
|
|
resolve({
|
|
startTime,
|
|
endTime,
|
|
totalMilliseconds,
|
|
sheets: less.sheets.length
|
|
});
|
|
|
|
} else {
|
|
// Relies on less.sheets array, callback seems to be guaranteed to be called for every element of the array
|
|
loadStyleSheets((e, css, _, sheet, webInfo) => {
|
|
if (e) {
|
|
errors.add(e, e.href || sheet.href);
|
|
reject(e);
|
|
return;
|
|
}
|
|
if (webInfo.local) {
|
|
less.logger.info(`Loading ${sheet.href} from cache.`);
|
|
} else {
|
|
less.logger.info(`Rendered ${sheet.href} successfully.`);
|
|
}
|
|
browser$1.createCSS(window.document, css, sheet);
|
|
less.logger.info(`CSS for ${sheet.href} generated in ${new Date() - endTime}ms`);
|
|
|
|
// Count completed sheet
|
|
remainingSheets--;
|
|
|
|
// Check if the last remaining sheet was processed and then call the promise
|
|
if (remainingSheets === 0) {
|
|
totalMilliseconds = new Date() - startTime;
|
|
less.logger.info(`Less has finished. CSS generated in ${totalMilliseconds}ms`);
|
|
resolve({
|
|
startTime,
|
|
endTime,
|
|
totalMilliseconds,
|
|
sheets: less.sheets.length
|
|
});
|
|
}
|
|
endTime = new Date();
|
|
}, reload, modifyVars);
|
|
}
|
|
|
|
loadStyles(modifyVars);
|
|
});
|
|
};
|
|
|
|
less.refreshStyles = loadStyles;
|
|
return less;
|
|
};
|
|
|
|
/**
|
|
* Kicks off less and compiles any stylesheets
|
|
* used in the browser distributed version of less
|
|
* to kick-start less using the browser api
|
|
*/
|
|
|
|
const options = defaultOptions();
|
|
|
|
if (window.less) {
|
|
for (const key in window.less) {
|
|
if (Object.prototype.hasOwnProperty.call(window.less, key)) {
|
|
options[key] = window.less[key];
|
|
}
|
|
}
|
|
}
|
|
addDefaultOptions(window, options);
|
|
|
|
options.plugins = options.plugins || [];
|
|
|
|
if (window.LESS_PLUGINS) {
|
|
options.plugins = options.plugins.concat(window.LESS_PLUGINS);
|
|
}
|
|
|
|
const less = root(window, options);
|
|
|
|
window.less = less;
|
|
|
|
let css;
|
|
let head;
|
|
let style;
|
|
|
|
// Always restore page visibility
|
|
function resolveOrReject(data) {
|
|
if (data.filename) {
|
|
console.warn(data);
|
|
}
|
|
if (!options.async) {
|
|
head.removeChild(style);
|
|
}
|
|
}
|
|
|
|
if (options.onReady) {
|
|
if (/!watch/.test(window.location.hash)) {
|
|
less.watch();
|
|
}
|
|
// Simulate synchronous stylesheet loading by hiding page rendering
|
|
if (!options.async) {
|
|
css = 'body { display: none !important }';
|
|
head = document.head || document.getElementsByTagName('head')[0];
|
|
style = document.createElement('style');
|
|
|
|
style.type = 'text/css';
|
|
if (style.styleSheet) {
|
|
style.styleSheet.cssText = css;
|
|
} else {
|
|
style.appendChild(document.createTextNode(css));
|
|
}
|
|
|
|
head.appendChild(style);
|
|
}
|
|
less.registerStylesheetsImmediately();
|
|
less.pageLoadFinished = less.refresh(less.env === 'development').then(resolveOrReject, resolveOrReject);
|
|
}
|
|
|
|
return less;
|
|
|
|
}));
|