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67 lines
1.8 KiB
67 lines
1.8 KiB
'use strict' |
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let NoWorkResult = require('./no-work-result') |
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let LazyResult = require('./lazy-result') |
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let Document = require('./document') |
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let Root = require('./root') |
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class Processor { |
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constructor(plugins = []) { |
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this.version = '8.4.8' |
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this.plugins = this.normalize(plugins) |
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} |
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use(plugin) { |
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this.plugins = this.plugins.concat(this.normalize([plugin])) |
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return this |
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} |
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process(css, opts = {}) { |
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if ( |
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this.plugins.length === 0 && |
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typeof opts.parser === 'undefined' && |
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typeof opts.stringifier === 'undefined' && |
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typeof opts.syntax === 'undefined' |
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) { |
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return new NoWorkResult(this, css, opts) |
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} else { |
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return new LazyResult(this, css, opts) |
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} |
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} |
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normalize(plugins) { |
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let normalized = [] |
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for (let i of plugins) { |
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if (i.postcss === true) { |
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i = i() |
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} else if (i.postcss) { |
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i = i.postcss |
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} |
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if (typeof i === 'object' && Array.isArray(i.plugins)) { |
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normalized = normalized.concat(i.plugins) |
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} else if (typeof i === 'object' && i.postcssPlugin) { |
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normalized.push(i) |
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} else if (typeof i === 'function') { |
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normalized.push(i) |
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} else if (typeof i === 'object' && (i.parse || i.stringify)) { |
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if (process.env.NODE_ENV !== 'production') { |
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throw new Error( |
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'PostCSS syntaxes cannot be used as plugins. Instead, please use ' + |
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'one of the syntax/parser/stringifier options as outlined ' + |
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'in your PostCSS runner documentation.' |
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) |
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} |
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} else { |
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throw new Error(i + ' is not a PostCSS plugin') |
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} |
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} |
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return normalized |
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} |
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} |
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module.exports = Processor |
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Processor.default = Processor |
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Root.registerProcessor(Processor) |
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Document.registerProcessor(Processor)
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