| 'use strict'
|
|
|
| let Document = require('./document')
|
| let LazyResult = require('./lazy-result')
|
| let NoWorkResult = require('./no-work-result')
|
| let Root = require('./root')
|
|
|
| class Processor {
|
| constructor(plugins = []) {
|
| this.version = '8.5.26'
|
| this.plugins = this.normalize(plugins)
|
| }
|
|
|
| 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
|
| }
|
|
|
| process(css, opts = {}) {
|
| if (
|
| !this.plugins.length &&
|
| !opts.parser &&
|
| !opts.stringifier &&
|
| !opts.syntax
|
| ) {
|
| return new NoWorkResult(this, css, opts)
|
| } else {
|
| return new LazyResult(this, css, opts)
|
| }
|
| }
|
|
|
| use(plugin) {
|
| this.plugins = this.plugins.concat(this.normalize([plugin]))
|
| return this
|
| }
|
| }
|
|
|
| module.exports = Processor
|
| Processor.default = Processor
|
|
|
| Root.registerProcessor(Processor)
|
| Document.registerProcessor(Processor)
|
|
|
