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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 | 7x 7x 7x 3x 3x 3x 3x 3x 3x 3x 7x 7x 7x 3x 2x 1x 1x 7x | import merge from 'merge-source-map'
import { RawSourceMap } from 'source-map'
import { SFCStyleCompileOptions } from './compileStyle'
import { isFunction } from '@vue/shared'
export type StylePreprocessor = (
source: string,
map: RawSourceMap | undefined,
options: {
[key: string]: any
additionalData?: string | ((source: string, filename: string) => string)
filename: string
},
customRequire: SFCStyleCompileOptions['preprocessCustomRequire']
) => StylePreprocessorResults
export interface StylePreprocessorResults {
code: string
map?: object
errors: Error[]
dependencies: string[]
}
// .scss/.sass processor
const scss: StylePreprocessor = (source, map, options, load = require) => {
const nodeSass = load('sass')
const finalOptions = {
...options,
data: getSource(source, options.filename, options.additionalData),
file: options.filename,
outFile: options.filename,
sourceMap: !!map
}
try {
const result = nodeSass.renderSync(finalOptions)
const dependencies = result.stats.includedFiles
Iif (map) {
return {
code: result.css.toString(),
map: merge(map, JSON.parse(result.map.toString())),
errors: [],
dependencies
}
}
return { code: result.css.toString(), errors: [], dependencies }
} catch (e: any) {
return { code: '', errors: [e], dependencies: [] }
}
}
const sass: StylePreprocessor = (source, map, options, load) =>
scss(
source,
map,
{
...options,
indentedSyntax: true
},
load
)
// .less
const less: StylePreprocessor = (source, map, options, load = require) => {
const nodeLess = load('less')
let result: any
let error: Error | null = null
nodeLess.render(
getSource(source, options.filename, options.additionalData),
{ ...options, syncImport: true },
(err: Error | null, output: any) => {
error = err
result = output
}
)
Iif (error) return { code: '', errors: [error], dependencies: [] }
const dependencies = result.imports
Iif (map) {
return {
code: result.css.toString(),
map: merge(map, result.map),
errors: [],
dependencies: dependencies
}
}
return {
code: result.css.toString(),
errors: [],
dependencies: dependencies
}
}
// .styl
const styl: StylePreprocessor = (source, map, options, load = require) => {
const nodeStylus = load('stylus')
try {
const ref = nodeStylus(source)
Object.keys(options).forEach(key => ref.set(key, options[key]))
Iif (map) ref.set('sourcemap', { inline: false, comment: false })
const result = ref.render()
const dependencies = ref.deps()
Iif (map) {
return {
code: result,
map: merge(map, ref.sourcemap),
errors: [],
dependencies
}
}
return { code: result, errors: [], dependencies }
} catch (e: any) {
return { code: '', errors: [e], dependencies: [] }
}
}
function getSource(
source: string,
filename: string,
additionalData?: string | ((source: string, filename: string) => string)
) {
if (!additionalData) return source
if (isFunction(additionalData)) {
return additionalData(source, filename)
}
return additionalData + source
}
export type PreprocessLang = 'less' | 'sass' | 'scss' | 'styl' | 'stylus'
export const processors: Record<PreprocessLang, StylePreprocessor> = {
less,
sass,
scss,
styl,
stylus: styl
}
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