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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,135 @@ | ||
| /** | ||
| * Copyright (c) 2015-present, Facebook, Inc. | ||
| * | ||
| * This source code is licensed under the MIT license found in the | ||
| * LICENSE file in the root directory of this source tree. | ||
| */ | ||
| 'use strict'; | ||
|
|
||
| module.exports = function create(env) { | ||
| if (env !== 'development' && env !== 'test' && env !== 'production') { | ||
| throw new Error( | ||
| 'Using `babel-preset-react-app` requires that you specify `NODE_ENV` or ' + | ||
| '`BABEL_ENV` environment variables. Valid values are "development", ' + | ||
| '"test", and "production". Instead, received: ' + | ||
| JSON.stringify(env) + | ||
| '.' | ||
| ); | ||
| } | ||
|
|
||
| const plugins = [ | ||
| // Necessary to include regardless of the environment because | ||
| // in practice some other transforms (such as object-rest-spread) | ||
| // don't work without it: https://github.com/babel/babel/issues/7215 | ||
| require.resolve('babel-plugin-transform-es2015-destructuring'), | ||
| // class { handleClick = () => { } } | ||
| require.resolve('babel-plugin-transform-class-properties'), | ||
| // The following two plugins use Object.assign directly, instead of Babel's | ||
| // extends helper. Note that this assumes `Object.assign` is available. | ||
| // { ...todo, completed: true } | ||
| [ | ||
| require.resolve('babel-plugin-transform-object-rest-spread'), | ||
| { | ||
| useBuiltIns: true, | ||
| }, | ||
| ], | ||
| // Transforms JSX | ||
| [ | ||
| require.resolve('babel-plugin-transform-react-jsx'), | ||
| { | ||
| useBuiltIns: true, | ||
| }, | ||
| ], | ||
| // Polyfills the runtime needed for async/await and generators | ||
| [ | ||
| require.resolve('babel-plugin-transform-runtime'), | ||
| { | ||
| helpers: false, | ||
| polyfill: false, | ||
| regenerator: true, | ||
| }, | ||
| ], | ||
| ]; | ||
|
|
||
| if (env === 'development' || env === 'test') { | ||
| // The following two plugins are currently necessary to make React warnings | ||
| // include more valuable information. They are included here because they are | ||
| // currently not enabled in babel-preset-react. See the below threads for more info: | ||
| // https://github.com/babel/babel/issues/4702 | ||
| // https://github.com/babel/babel/pull/3540#issuecomment-228673661 | ||
| // https://github.com/facebookincubator/create-react-app/issues/989 | ||
| plugins.push.apply(plugins, [ | ||
| // Adds component stack to warning messages | ||
| require.resolve('babel-plugin-transform-react-jsx-source'), | ||
| // Adds __self attribute to JSX which React will use for some warnings | ||
| require.resolve('babel-plugin-transform-react-jsx-self'), | ||
| ]); | ||
| } | ||
|
|
||
| if (env === 'test') { | ||
| return { | ||
| presets: [ | ||
| // ES features necessary for user's Node version | ||
| [ | ||
| require('babel-preset-env').default, | ||
| { | ||
| targets: { | ||
| node: 'current', | ||
| }, | ||
| }, | ||
| ], | ||
| // JSX, Flow | ||
| require.resolve('babel-preset-react'), | ||
| ], | ||
| plugins: plugins.concat([ | ||
| // Compiles import() to a deferred require() | ||
| require.resolve('babel-plugin-dynamic-import-node'), | ||
| ]), | ||
| }; | ||
| } else { | ||
| return { | ||
| presets: [ | ||
| // Latest stable ECMAScript features | ||
| [ | ||
| require.resolve('babel-preset-env'), | ||
| { | ||
| targets: { | ||
| // React parses on ie 9, so we should too | ||
| ie: 9, | ||
| // We currently minify with uglify | ||
| // Remove after https://github.com/mishoo/UglifyJS2/issues/448 | ||
| uglify: true, | ||
| }, | ||
| // Disable polyfill transforms | ||
| useBuiltIns: false, | ||
| // Do not transform modules to CJS | ||
| modules: false, | ||
| }, | ||
| ], | ||
| // JSX, Flow | ||
| require.resolve('babel-preset-react'), | ||
| ], | ||
| plugins: plugins.concat([ | ||
| // function* () { yield 42; yield 43; } | ||
| [ | ||
| require.resolve('babel-plugin-transform-regenerator'), | ||
| { | ||
| // Async functions are converted to generators by babel-preset-env | ||
| async: false, | ||
| }, | ||
| ], | ||
| // Adds syntax support for import() | ||
| require.resolve('babel-plugin-syntax-dynamic-import'), | ||
| ]), | ||
| }; | ||
|
|
||
| if (env === 'production') { | ||
| // Optimization: hoist JSX that never changes out of render() | ||
| // Disabled because of issues: https://github.com/facebookincubator/create-react-app/issues/553 | ||
| // TODO: Enable again when these issues are resolved. | ||
| // plugins.push.apply(plugins, [ | ||
| // require.resolve('babel-plugin-transform-react-constant-elements') | ||
| // ]); | ||
| } | ||
| } | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| /** | ||
| * Copyright (c) 2015-present, Facebook, Inc. | ||
| * | ||
| * This source code is licensed under the MIT license found in the | ||
| * LICENSE file in the root directory of this source tree. | ||
| */ | ||
| 'use strict'; | ||
|
|
||
| const create = require('./create'); | ||
|
|
||
| module.exports = create('development'); |
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