0675dd924d
Reviewed By: passy Differential Revision: D17863711 fbshipit-source-id: 259dc77826fb803ff1b88c88529d7f679d3b74d8
66 lines
1.4 KiB
JavaScript
66 lines
1.4 KiB
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @format
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*/
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const generate = require('babel-generator').default;
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const babylon = require('babylon');
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const babel = require('babel-core');
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const metro = require('metro');
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exports.transform = function({
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filename,
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options,
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src,
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plugins: defaultPlugins,
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}) {
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const presets = [];
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let ast = babylon.parse(src, {
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filename,
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plugins: ['jsx', 'flow', 'classProperties', 'objectRestSpread'],
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sourceType: filename.includes('node_modules') ? 'script' : 'module',
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});
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// run babel
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const plugins = [
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...defaultPlugins,
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require('./babel-plugins/electron-requires.js'),
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require('./babel-plugins/dynamic-requires.js'),
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];
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if (!filename.includes('node_modules')) {
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plugins.unshift(require('babel-plugin-transform-es2015-modules-commonjs'));
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}
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ast = babel.transformFromAst(ast, src, {
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babelrc: !filename.includes('node_modules'),
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code: false,
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comments: false,
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compact: false,
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filename,
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plugins,
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presets,
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sourceMaps: true,
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}).ast;
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const result = generate(
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ast,
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{
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filename,
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sourceFileName: filename,
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sourceMaps: true,
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},
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src,
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);
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return {
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ast,
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code: result.code,
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filename,
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map: result.rawMappings.map(metro.sourceMaps.compactMapping),
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};
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};
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