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ProcessOptions,
Result,
SourceMap,
Message,
LazyResult
} from 'postcss'
import trimPlugin from './stylePluginTrim'
import scopedPlugin from './stylePluginScoped'
import {
processors,
StylePreprocessor,
StylePreprocessorResults,
PreprocessLang
} from './stylePreprocessors'
import { RawSourceMap } from 'source-map'
import { cssVarsPlugin } from './cssVars'
import postcssModules from 'postcss-modules'
export interface SFCStyleCompileOptions {
source: string
filename: string
id: string
scoped?: boolean
trim?: boolean
isProd?: boolean
inMap?: RawSourceMap
preprocessLang?: PreprocessLang
preprocessOptions?: any
preprocessCustomRequire?: (id: string) => any
postcssOptions?: any
postcssPlugins?: any[]
/**
* @deprecated use `inMap` instead.
*/
map?: RawSourceMap
}
/**
* Aligns with postcss-modules
* https://github.com/css-modules/postcss-modules
*/
export interface CSSModulesOptions {
scopeBehaviour?: 'global' | 'local'
generateScopedName?:
| string
| ((name: string, filename: string, css: string) => string)
hashPrefix?: string
localsConvention?: 'camelCase' | 'camelCaseOnly' | 'dashes' | 'dashesOnly'
exportGlobals?: boolean
globalModulePaths?: RegExp[]
}
export interface SFCAsyncStyleCompileOptions extends SFCStyleCompileOptions {
isAsync?: boolean
// css modules support, note this requires async so that we can get the
// resulting json
modules?: boolean
modulesOptions?: CSSModulesOptions
}
export interface SFCStyleCompileResults {
code: string
map: RawSourceMap | undefined
rawResult: Result | LazyResult | undefined
errors: Error[]
modules?: Record<string, string>
dependencies: Set<string>
}
export function compileStyle(
options: SFCStyleCompileOptions
): SFCStyleCompileResults {
return doCompileStyle({
...options,
isAsync: false
}) as SFCStyleCompileResults
}
export function compileStyleAsync(
options: SFCAsyncStyleCompileOptions
): Promise<SFCStyleCompileResults> {
return doCompileStyle({
...options,
isAsync: true
}) as Promise<SFCStyleCompileResults>
}
export function doCompileStyle(
options: SFCAsyncStyleCompileOptions
): SFCStyleCompileResults | Promise<SFCStyleCompileResults> {
const {
filename,
id,
scoped = false,
trim = true,
isProd = false,
modules = false,
modulesOptions = {},
preprocessLang,
postcssOptions,
postcssPlugins
} = options
const preprocessor = preprocessLang && processors[preprocessLang]
const preProcessedSource = preprocessor && preprocess(options, preprocessor)
const map = preProcessedSource
? preProcessedSource.map
: options.inMap || options.map
const source = preProcessedSource ? preProcessedSource.code : options.source
const shortId = id.replace(/^data-v-/, '')
const longId = `data-v-${shortId}`
const plugins = (postcssPlugins || []).slice()
plugins.unshift(cssVarsPlugin({ id: shortId, isProd }))
if (trim) {
plugins.push(trimPlugin())
}
if (scoped) {
plugins.push(scopedPlugin(longId))
}
let cssModules: Record<string, string> | undefined
if (modules) {
Iif (__GLOBAL__ || __ESM_BROWSER__) {
throw new Error(
'[@vue/compiler-sfc] `modules` option is not supported in the browser build.'
)
}
Iif (!options.isAsync) {
throw new Error(
'[@vue/compiler-sfc] `modules` option can only be used with compileStyleAsync().'
)
}
plugins.push(
postcssModules({
...modulesOptions,
getJSON: (_cssFileName: string, json: Record<string, string>) => {
cssModules = json
}
})
)
}
const postCSSOptions: ProcessOptions = {
...postcssOptions,
to: filename,
from: filename
}
Iif (map) {
postCSSOptions.map = {
inline: false,
annotation: false,
prev: map
}
}
let result: LazyResult | undefined
let code: string | undefined
let outMap: SourceMap | undefined
// stylus output include plain css. so need remove the repeat item
const dependencies = new Set(
preProcessedSource ? preProcessedSource.dependencies : []
)
// sass has filename self when provided filename option
dependencies.delete(filename)
const errors: Error[] = []
Iif (preProcessedSource && preProcessedSource.errors.length) {
errors.push(...preProcessedSource.errors)
}
const recordPlainCssDependencies = (messages: Message[]) => {
messages.forEach(msg => {
Iif (msg.type === 'dependency') {
// postcss output path is absolute position path
dependencies.add(msg.file)
}
})
return dependencies
}
try {
result = postcss(plugins).process(source, postCSSOptions)
// In async mode, return a promise.
if (options.isAsync) {
return result
.then(result => ({
code: result.css || '',
map: result.map && result.map.toJSON(),
errors,
modules: cssModules,
rawResult: result,
dependencies: recordPlainCssDependencies(result.messages)
}))
.catch(error => ({
code: '',
map: undefined,
errors: [...errors, error],
rawResult: undefined,
dependencies
}))
}
recordPlainCssDependencies(result.messages)
// force synchronous transform (we know we only have sync plugins)
code = result.css
outMap = result.map
} catch (e: any) {
errors.push(e)
}
return {
code: code || ``,
map: outMap && outMap.toJSON(),
errors,
rawResult: result,
dependencies
}
}
function preprocess(
options: SFCStyleCompileOptions,
preprocessor: StylePreprocessor
): StylePreprocessorResults {
Iif ((__ESM_BROWSER__ || __GLOBAL__) && !options.preprocessCustomRequire) {
throw new Error(
`[@vue/compiler-sfc] Style preprocessing in the browser build must ` +
`provide the \`preprocessCustomRequire\` option to return the in-browser ` +
`version of the preprocessor.`
)
}
return preprocessor(
options.source,
options.inMap || options.map,
{
filename: options.filename,
...options.preprocessOptions
},
options.preprocessCustomRequire
)
}
|