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Direktori : /var/www/html/node_modules/postcss/lib/ |
Current File : /var/www/html/node_modules/postcss/lib/processor.js |
'use strict' let NoWorkResult = require('./no-work-result') let LazyResult = require('./lazy-result') let Document = require('./document') let Root = require('./root') class Processor { constructor(plugins = []) { this.version = '8.4.14' this.plugins = this.normalize(plugins) } use(plugin) { this.plugins = this.plugins.concat(this.normalize([plugin])) return this } process(css, opts = {}) { if ( this.plugins.length === 0 && typeof opts.parser === 'undefined' && typeof opts.stringifier === 'undefined' && typeof opts.syntax === 'undefined' ) { return new NoWorkResult(this, css, opts) } else { return new LazyResult(this, css, opts) } } normalize(plugins) { let normalized = [] for (let i of plugins) { if (i.postcss === true) { i = i() } else if (i.postcss) { i = i.postcss } if (typeof i === 'object' && Array.isArray(i.plugins)) { normalized = normalized.concat(i.plugins) } else if (typeof i === 'object' && i.postcssPlugin) { normalized.push(i) } else if (typeof i === 'function') { normalized.push(i) } else if (typeof i === 'object' && (i.parse || i.stringify)) { if (process.env.NODE_ENV !== 'production') { throw new Error( 'PostCSS syntaxes cannot be used as plugins. Instead, please use ' + 'one of the syntax/parser/stringifier options as outlined ' + 'in your PostCSS runner documentation.' ) } } else { throw new Error(i + ' is not a PostCSS plugin') } } return normalized } } module.exports = Processor Processor.default = Processor Root.registerProcessor(Processor) Document.registerProcessor(Processor)