Files F101517851

processor.js
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Created: Tue, Feb 11, 05:27

processor.js
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	'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 = '8.4.21'
	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)

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