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node_modules/vue-loader/lib/template-compiler/index.js

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+var loaderUtils = require('loader-utils')
+var normalize = require('../utils/normalize')
+var compiler = require('vue-template-compiler')
+var beautify = require('js-beautify').js_beautify
+var transpile = require('vue-template-es2015-compiler')
+var hotReloadAPIPath = normalize.dep('vue-hot-reload-api')
+var transformRequire = require('./modules/transform-require')
+
+module.exports = function (html) {
+  this.cacheable()
+  var isServer = this.target === 'node'
+  var isProduction = this.minimize || process.env.NODE_ENV === 'production'
+  var vueOptions = this.options.__vueOptions__ || {}
+  var options = loaderUtils.getOptions(this) || {}
+
+  var defaultModules = [transformRequire(options.transformToRequire)]
+  var userModules = vueOptions.compilerModules || options.compilerModules
+  // for HappyPack cross-process use cases
+  if (typeof userModules === 'string') {
+    userModules = require(userModules)
+  }
+
+  var compilerOptions = {
+    preserveWhitespace: options.preserveWhitespace,
+    modules: defaultModules.concat(userModules || [])
+  }
+
+  var compiled = compiler.compile(html, compilerOptions)
+
+  // tips
+  if (compiled.tips && compiled.tips.length) {
+    compiled.tips.forEach(tip => {
+      this.emitWarning(tip)
+    })
+  }
+
+  var code
+  if (compiled.errors && compiled.errors.length) {
+    this.emitError(
+      `\n  Error compiling template:\n${pad(html)}\n` +
+      compiled.errors.map(e => `  - ${e}`).join('\n') + '\n'
+    )
+    code = 'module.exports={render:function(){},staticRenderFns:[]}'
+  } else {
+    var bubleOptions = options.buble
+    code = transpile('module.exports={' +
+      'render:' + toFunction(compiled.render) + ',' +
+      'staticRenderFns: [' + compiled.staticRenderFns.map(toFunction).join(',') + ']' +
+    '}', bubleOptions)
+    // mark with stripped (this enables Vue to use correct runtime proxy detection)
+    if (!isProduction && (
+      !bubleOptions ||
+      !bubleOptions.transforms ||
+      bubleOptions.transforms.stripWith !== false
+    )) {
+      code += `\nmodule.exports.render._withStripped = true`
+    }
+  }
+  // hot-reload
+  if (!isServer && !isProduction) {
+    code +=
+      '\nif (module.hot) {\n' +
+      '  module.hot.accept()\n' +
+      '  if (module.hot.data) {\n' +
+      '     require("' + hotReloadAPIPath + '").rerender("' + options.id + '", module.exports)\n' +
+      '  }\n' +
+      '}'
+  }
+
+  return code
+}
+
+function toFunction (code) {
+  return 'function (){' + beautify(code, {
+    indent_size: 2 // eslint-disable-line camelcase
+  }) + '}'
+}
+
+function pad (html) {
+  return html.split(/\r?\n/).map(line => `  ${line}`).join('\n')
+}

node_modules/vue-loader/lib/template-compiler/modules/transform-require.js

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+// vue compiler module for transforming `<tag>:<attribute>` to `require`
+
+var defaultOptions = {
+  img: 'src',
+  image: 'xlink:href'
+}
+
+module.exports = userOptions => {
+  var options = userOptions
+    ? Object.assign({}, defaultOptions, userOptions)
+    : defaultOptions
+
+  return {
+    postTransformNode: node => {
+      transform(node, options)
+    }
+  }
+}
+
+function transform (node, options) {
+  for (var tag in options) {
+    if (node.tag === tag && node.attrs) {
+      var attributes = options[tag]
+      if (typeof attributes === 'string') {
+        node.attrs.some(attr => rewrite(attr, attributes))
+      } else if (Array.isArray(attributes)) {
+        attributes.forEach(item => node.attrs.some(attr => rewrite(attr, item)))
+      }
+    }
+  }
+}
+
+function rewrite (attr, name) {
+  if (attr.name === name) {
+    var value = attr.value
+    var isStatic = value.charAt(0) === '"' && value.charAt(value.length - 1) === '"'
+    if (!isStatic) {
+      return
+    }
+    var firstChar = value.charAt(1)
+    if (firstChar === '.' || firstChar === '~') {
+      if (firstChar === '~') {
+        value = '"' + value.slice(2)
+      }
+      attr.value = `require(${value})`
+    }
+    return true
+  }
+}

node_modules/vue-loader/lib/template-compiler/preprocessor.js

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+// loader for pre-processing templates with e.g. pug
+
+var cons = require('consolidate')
+var loaderUtils = require('loader-utils')
+var extname = require('path').extname
+
+module.exports = function (content) {
+  this.cacheable && this.cacheable()
+  var callback = this.async()
+  var opt = loaderUtils.getOptions(this) || {}
+
+  // this is never documented and should be deprecated
+  // but we'll keep it so we don't break stuff
+  var vue = this.options.__vueOptions__
+  if (vue && vue.template) {
+    for (var key in vue.template) {
+      opt[key] = vue.template[key]
+    }
+  }
+
+  function exportContent (content) {
+    if (opt.raw) {
+      callback(null, content)
+    } else {
+      callback(null, 'module.exports = ' + JSON.stringify(content))
+    }
+  }
+
+  // with no engine given, use the file extension as engine
+  if (!opt.engine) {
+    opt.engine = extname(this.request).substr(1).toLowerCase()
+  }
+
+  if (!cons[opt.engine]) {
+    return callback(new Error(
+      'Template engine \'' + opt.engine + '\' ' +
+      'isn\'t available in Consolidate.js'
+    ))
+  }
+
+  // for relative includes
+  opt.filename = this.resourcePath
+
+  cons[opt.engine].render(content, opt, function (err, html) {
+    if (err) {
+      return callback(err)
+    }
+    exportContent(html)
+  })
+}