AK-21/Graphite-Industrial-Intelligence

1'use strict'2 3let Document = require('./document')4let LazyResult = require('./lazy-result')5let NoWorkResult = require('./no-work-result')6let Root = require('./root')7 8class Processor {9  constructor(plugins = []) {10    this.version = '8.5.16'11    this.plugins = this.normalize(plugins)12  }13 14  normalize(plugins) {15    let normalized = []16    for (let i of plugins) {17      if (i.postcss === true) {18        i = i()19      } else if (i.postcss) {20        i = i.postcss21      }22 23      if (typeof i === 'object' && Array.isArray(i.plugins)) {24        normalized = normalized.concat(i.plugins)25      } else if (typeof i === 'object' && i.postcssPlugin) {26        normalized.push(i)27      } else if (typeof i === 'function') {28        normalized.push(i)29      } else if (typeof i === 'object' && (i.parse || i.stringify)) {30        if (process.env.NODE_ENV !== 'production') {31          throw new Error(32            'PostCSS syntaxes cannot be used as plugins. Instead, please use ' +33              'one of the syntax/parser/stringifier options as outlined ' +34              'in your PostCSS runner documentation.'35          )36        }37      } else {38        throw new Error(i + ' is not a PostCSS plugin')39      }40    }41    return normalized42  }43 44  process(css, opts = {}) {45    if (46      !this.plugins.length &&47      !opts.parser &&48      !opts.stringifier &&49      !opts.syntax50    ) {51      return new NoWorkResult(this, css, opts)52    } else {53      return new LazyResult(this, css, opts)54    }55  }56 57  use(plugin) {58    this.plugins = this.plugins.concat(this.normalize([plugin]))59    return this60  }61}62 63module.exports = Processor64Processor.default = Processor65 66Root.registerProcessor(Processor)67Document.registerProcessor(Processor)68