- All files / lib compileTemplate.ts -

- 91.89% - Statements - 34/37 -
- 78.79% - Branches - 26/33 -
- 100% - Functions - 5/5 -
- 97.14% - Lines - 34/35 -
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-  import { VueTemplateCompiler, VueTemplateCompilerOptions } from './types'
- 
-import assetUrlsModule, {
-  AssetURLOptions
-} from './templateCompilerModules/assetUrl'
-import srcsetModule from './templateCompilerModules/srcset'
- 
-const prettier = require('prettier')
-const consolidate = require('consolidate')
-const transpile = require('vue-template-es2015-compiler')
- 
-export interface TemplateCompileOptions {
-  source: string
-  filename: string
-  compiler: VueTemplateCompiler
-  compilerOptions?: VueTemplateCompilerOptions
-  transformAssetUrls?: AssetURLOptions | boolean
-  preprocessLang?: string
-  preprocessOptions?: any
-  transpileOptions?: any
-  isProduction?: boolean
-  isFunctional?: boolean
-  optimizeSSR?: boolean
-}
- 
-export interface TemplateCompileResult {
-  code: string
-  source: string
-  tips: string[]
-  errors: string[]
-}
- 
-export function compileTemplate(
-  options: TemplateCompileOptions
-): TemplateCompileResult {
-  const { preprocessLang } = options
-  const preprocessor = preprocessLang && consolidate[preprocessLang]
-  if (preprocessor) {
-    return actuallyCompile(
-      Object.assign({}, options, {
-        source: preprocess(options, preprocessor)
-      })
-    )
-  } else if (preprocessLang) {
-    return {
-      code: `var render = function () {}\n` + `var staticRenderFns = []\n`,
-      source: options.source,
-      tips: [
-        `Component ${
-          options.filename
-        } uses lang ${preprocessLang} for template. Please install the language preprocessor.`
-      ],
-      errors: [
-        `Component ${
-          options.filename
-        } uses lang ${preprocessLang} for template, however it is not installed.`
-      ]
-    }
-  } else {
-    return actuallyCompile(options)
-  }
-}
- 
-function preprocess(
-  options: TemplateCompileOptions,
-  preprocessor: any
-): string {
-  const { source, filename, preprocessOptions } = options
- 
-  const finalPreprocessOptions = Object.assign(
-    {
-      filename
-    },
-    preprocessOptions
-  )
- 
-  // Consolidate exposes a callback based API, but the callback is in fact
-  // called synchronously for most templating engines. In our case, we have to
-  // expose a synchronous API so that it is usable in Jest transforms (which
-  // have to be sync because they are applied via Node.js require hooks)
-  let res: any, err
-  preprocessor.render(
-    source,
-    finalPreprocessOptions,
-    (_err: Error | null, _res: string) => {
-      Iif (_err) err = _err
-      res = _res
-    }
-  )
- 
-  Iif (err) throw err
-  return res
-}
- 
-function actuallyCompile(
-  options: TemplateCompileOptions
-): TemplateCompileResult {
-  const {
-    source,
-    compiler,
-    compilerOptions = {},
-    transpileOptions = {},
-    transformAssetUrls,
-    isProduction = process.env.NODE_ENV === 'production',
-    isFunctional = false,
-    optimizeSSR = false
-  } = options
- 
-  const compile =
-    optimizeSSR && compiler.ssrCompile ? compiler.ssrCompile : compiler.compile
- 
-  let finalCompilerOptions = compilerOptions
-  if (transformAssetUrls) {
-    const builtInModules = [
-      transformAssetUrls === true
-        ? assetUrlsModule()
-        : assetUrlsModule(transformAssetUrls),
-      srcsetModule()
-    ]
-    finalCompilerOptions = Object.assign({}, compilerOptions, {
-      modules: [...builtInModules, ...(compilerOptions.modules || [])]
-    })
-  }
- 
-  const { render, staticRenderFns, tips, errors } = compile(
-    source,
-    finalCompilerOptions
-  )
- 
-  Iif (errors && errors.length) {
-    return {
-      code: `var render = function () {}\n` + `var staticRenderFns = []\n`,
-      source,
-      tips,
-      errors
-    }
-  } else {
-    const finalTranspileOptions = Object.assign({}, transpileOptions, {
-      transforms: Object.assign({}, transpileOptions.transforms, {
-        stripWithFunctional: isFunctional
-      })
-    })
- 
-    const toFunction = (code: string): string => {
-      return `function (${isFunctional ? `_h,_vm` : ``}) {${code}}`
-    }
- 
-    // transpile code with vue-template-es2015-compiler, which is a forked
-    // version of Buble that applies ES2015 transforms + stripping `with` usage
-    let code =
-      transpile(
-        `var __render__ = ${toFunction(render)}\n` +
-          `var __staticRenderFns__ = [${staticRenderFns.map(toFunction)}]`,
-        finalTranspileOptions
-      ) + `\n`
- 
-    // #23 we use __render__ to avoid `render` not being prefixed by the
-    // transpiler when stripping with, but revert it back to `render` to
-    // maintain backwards compat
-    code = code.replace(/\s__(render|staticRenderFns)__\s/g, ' $1 ')
- 
-    Eif (!isProduction) {
-      // mark with stripped (this enables Vue to use correct runtime proxy
-      // detection)
-      code += `render._withStripped = true`
-      code = prettier.format(code, { semi: false, parser: 'babylon' })
-    }
- 
-    return {
-      code,
-      source,
-      tips,
-      errors
-    }
-  }
-}
-