feat(coffeescript): add support for coffeescript

Author: eddyerburgh

jest-vue.js

@@ -5,6 +5,7 @@ const addTemplateMapping = require('./lib/add-template-mapping')
 const convertSourceMap = require('convert-source-map')
 const compileBabel = require('./lib/compilers/babel-compiler')
 const compileTypescript = require('./lib/compilers/typescript-compiler')
+const compileCoffeeScript = require('./lib/compilers/coffee-compiler')
 
 const splitRE = /\r?\n/g
 
@@ -13,6 +14,10 @@ function processScript (scriptPart) {
     return compileTypescript(scriptPart.content)
   }
 
+  if (scriptPart.lang === 'coffee') {
+    return compileCoffeeScript(scriptPart.content)
+  }
+
   return compileBabel(scriptPart.content)
 }
 

lib/compilers/coffee-compiler.js

@@ -0,0 +1,19 @@
+var ensureRequire = require('../ensure-require.js')
+
+module.exports = function (raw, cb, compiler) {
+  ensureRequire('coffee', ['coffee-script'])
+  var coffee = require('coffee-script')
+  var compiled
+  try {
+    compiled = coffee.compile(raw, {
+      bare: true,
+      sourceMap: true
+    })
+  } catch (err) {
+    throw new Error(err)
+  }
+  return {
+      code: compiled.js,
+      map: compiled.v3SourceMap
+    }
+  }

package.json

@@ -17,6 +17,7 @@
     "babel-jest": "^20.0.3",
     "babel-plugin-istanbul": "^4.1.4",
     "babel-preset-env": "^1.6.0",
+    "coffee-script": "^1.12.7",
     "conventional-changelog": "^1.1.5",
     "cross-env": "^5.0.2",
     "eslint": "^4.3.0",

test/coffee.spec.js

@@ -0,0 +1,6 @@
+import { shallow } from 'vue-test-utils'
+import Coffee from './resources/Coffee.vue'
+
+test('processes .vue file with coffee script', () => {
+  shallow(Coffee)
+})

test/resources/Coffee.vue

@@ -0,0 +1,8 @@
+<template>
+  <div />
+</template>
+
+<script lang="coffee">
+module.exports =
+    data: -> {}
+</script>

yarn.lock

@@ -921,6 +921,10 @@ code-point-at@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
 
+coffee-script@^1.12.7:
+  version "1.12.7"
+  resolved "https://registry.yarnpkg.com/coffee-script/-/coffee-script-1.12.7.tgz#c05dae0cb79591d05b3070a8433a98c9a89ccc53"
+
 color-convert@^1.9.0:
   version "1.9.0"
   resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.0.tgz#1accf97dd739b983bf994d56fec8f95853641b7a"