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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 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 1x 2x 1x 1x 1x 1x 1x 1x 1x 1x 2x 1x 1x 1x 1x 1x 1x 1x 1x 2x | const merge = require('merge-source-map')
export interface StylePreprocessor {
render(
source: string,
map: any | null,
options: any
): StylePreprocessorResults
}
export interface StylePreprocessorResults {
code: string
map?: any
errors: Array<Error>
}
// .scss/.sass processor
const scss: StylePreprocessor = {
render(
source: string,
map: any | null,
options: any
): StylePreprocessorResults {
const nodeSass = require('node-sass')
const finalOptions = Object.assign({}, options, {
data: source,
file: options.filename,
outFile: options.filename,
sourceMap: !!map
})
try {
const result = nodeSass.renderSync(finalOptions)
Eif (map) {
return {
code: result.css.toString(),
map: merge(map, JSON.parse(result.map.toString())),
errors: []
}
}
return { code: result.css.toString(), errors: [] }
} catch (e) {
return { code: '', errors: [e] }
}
}
}
const sass = {
render(
source: string,
map: any | null,
options: any
): StylePreprocessorResults {
return scss.render(
source,
map,
Object.assign({}, options, { indentedSyntax: true })
)
}
}
// .less
const less = {
render(
source: string,
map: any | null,
options: any
): StylePreprocessorResults {
const nodeLess = require('less')
let result: any
let error: Error | null = null
nodeLess.render(
source,
Object.assign({}, options, { syncImport: true }),
(err: Error | null, output: any) => {
error = err
result = output
}
)
Iif (error) return { code: '', errors: [error] }
Eif (map) {
return {
code: result.css.toString(),
map: merge(map, result.map),
errors: []
}
}
return { code: result.css.toString(), errors: [] }
}
}
// .styl
const styl = {
render(
source: string,
map: any | null,
options: any
): StylePreprocessorResults {
const nodeStylus = require('stylus')
try {
const ref = nodeStylus(source)
Object.keys(options).forEach(key => ref.set(key, options[key]))
Eif (map) ref.set('sourcemap', { inline: false, comment: false })
const result = ref.render()
Eif (map) {
return {
code: result,
map: merge(map, ref.sourcemap),
errors: []
}
}
return { code: result, errors: [] }
} catch (e) {
return { code: '', errors: [e] }
}
}
}
export const processors: { [key: string]: StylePreprocessor } = {
less,
sass,
scss,
styl,
stylus: styl
}
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