124 lines
4.2 KiB
JavaScript
124 lines
4.2 KiB
JavaScript
/**
|
|
* 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.
|
|
*
|
|
* @format
|
|
* @flow
|
|
*/
|
|
|
|
/* eslint-env node */
|
|
|
|
'use strict';
|
|
|
|
const {transformSync: babelTransformSync} = require('@babel/core');
|
|
/* $FlowFixMe(>=0.54.0 site=react_native_oss) This comment suppresses an error
|
|
* found when Flow v0.54 was deployed. To see the error delete this comment and
|
|
* run Flow. */
|
|
const babelRegisterOnly = require('metro-babel-register');
|
|
/* $FlowFixMe(>=0.54.0 site=react_native_oss) This comment suppresses an error
|
|
* found when Flow v0.54 was deployed. To see the error delete this comment and
|
|
* run Flow. */
|
|
const createCacheKeyFunction = require('fbjs-scripts/jest/createCacheKeyFunction');
|
|
const generate = require('@babel/generator').default;
|
|
|
|
const nodeFiles = new RegExp(
|
|
[
|
|
'/local-cli/',
|
|
'/metro(?:-[^/]*)?/', // metro, metro-core, metro-source-map, metro-etc
|
|
].join('|'),
|
|
);
|
|
const nodeOptions = babelRegisterOnly.config([nodeFiles]);
|
|
|
|
babelRegisterOnly([]);
|
|
|
|
/* $FlowFixMe(site=react_native_oss) */
|
|
const transformer = require('metro/src/reactNativeTransformer');
|
|
module.exports = {
|
|
process(src /*: string */, file /*: string */) {
|
|
if (nodeFiles.test(file)) {
|
|
// node specific transforms only
|
|
return babelTransformSync(src, {
|
|
filename: file,
|
|
sourceType: 'script',
|
|
...nodeOptions,
|
|
ast: false,
|
|
}).code;
|
|
}
|
|
|
|
const {ast} = transformer.transform({
|
|
filename: file,
|
|
localPath: file,
|
|
options: {
|
|
ast: true, // needed for open source (?) https://github.com/facebook/react-native/commit/f8d6b97140cffe8d18b2558f94570c8d1b410d5c#r28647044
|
|
dev: true,
|
|
inlineRequires: true,
|
|
platform: '',
|
|
projectRoot: '',
|
|
retainLines: true,
|
|
sourceType: 'unambiguous', // b7 required. detects module vs script mode
|
|
},
|
|
src,
|
|
plugins: [
|
|
[require('@babel/plugin-transform-block-scoping')],
|
|
// the flow strip types plugin must go BEFORE class properties!
|
|
// there'll be a test case that fails if you don't.
|
|
[require('@babel/plugin-transform-flow-strip-types')],
|
|
[
|
|
require('@babel/plugin-proposal-class-properties'),
|
|
// use `this.foo = bar` instead of `this.defineProperty('foo', ...)`
|
|
{loose: true},
|
|
],
|
|
[require('@babel/plugin-transform-computed-properties')],
|
|
[require('@babel/plugin-transform-destructuring')],
|
|
[require('@babel/plugin-transform-function-name')],
|
|
[require('@babel/plugin-transform-literals')],
|
|
[require('@babel/plugin-transform-parameters')],
|
|
[require('@babel/plugin-transform-shorthand-properties')],
|
|
[require('@babel/plugin-transform-react-jsx')],
|
|
[require('@babel/plugin-transform-regenerator')],
|
|
[require('@babel/plugin-transform-sticky-regex')],
|
|
[require('@babel/plugin-transform-unicode-regex')],
|
|
[
|
|
require('@babel/plugin-transform-modules-commonjs'),
|
|
{strict: false, allowTopLevelThis: true},
|
|
],
|
|
[require('@babel/plugin-transform-classes')],
|
|
[require('@babel/plugin-transform-arrow-functions')],
|
|
[require('@babel/plugin-transform-spread')],
|
|
[require('@babel/plugin-proposal-object-rest-spread')],
|
|
[
|
|
require('@babel/plugin-transform-template-literals'),
|
|
{loose: true}, // dont 'a'.concat('b'), just use 'a'+'b'
|
|
],
|
|
[require('@babel/plugin-transform-exponentiation-operator')],
|
|
[require('@babel/plugin-transform-object-assign')],
|
|
[require('@babel/plugin-transform-for-of'), {loose: true}],
|
|
[require('@babel/plugin-transform-react-display-name')],
|
|
[require('@babel/plugin-transform-react-jsx-source')],
|
|
],
|
|
});
|
|
|
|
return generate(
|
|
ast,
|
|
{
|
|
code: true,
|
|
comments: false,
|
|
compact: false,
|
|
filename: file,
|
|
retainLines: true,
|
|
sourceFileName: file,
|
|
sourceMaps: true,
|
|
},
|
|
src,
|
|
).code;
|
|
},
|
|
|
|
getCacheKey: createCacheKeyFunction([
|
|
__filename,
|
|
require.resolve('metro/src/reactNativeTransformer'),
|
|
require.resolve('@babel/core/package.json'),
|
|
]),
|
|
};
|