102 lines
3.9 KiB
JavaScript
102 lines
3.9 KiB
JavaScript
/**
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* Copyright (c) 2013-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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'use strict';
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/* eslint-disable indent */
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module.exports = function(options) {
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options = Object.assign({
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autoImport: true,
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inlineRequires: process.env.NODE_ENV === 'test',
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objectAssign: true,
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rewriteModules: null, // {map: ?{[module: string]: string}, prefix: ?string}
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stripDEV: false,
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target: 'js',
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}, options);
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if (options.target !== 'js' && options.target !== 'flow') {
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throw new Error('options.target must be one of "js" or "flow".');
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}
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// Always enable these. These will overlap with some transforms (which also
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// enable the corresponding syntax, eg Flow), but these are the minimal
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// additional syntaxes that need to be enabled so we can minimally transform
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// to .js.flow files as well.
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let presetSets = [
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[
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require('babel-plugin-syntax-class-properties'),
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require('babel-plugin-syntax-flow'),
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require('babel-plugin-syntax-jsx'),
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require('babel-plugin-syntax-trailing-function-commas'),
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require('babel-plugin-syntax-object-rest-spread'),
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options.autoImport ? require('./plugins/auto-importer') : null,
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options.rewriteModules ?
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[require('./plugins/rewrite-modules'), options.rewriteModules || {}] :
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null,
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],
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[
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options.inlineRequires ? require('./plugins/inline-requires') : null,
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options.stripDEV ? require('./plugins/dev-expression') : null,
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]
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];
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// We only want to add declarations for flow transforms and not for js. So we
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// have to do this separate from above.
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if (options.target === 'flow') {
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presetSets[0].push(require('./plugins/dev-declaration'));
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}
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// Enable everything else for js.
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if (options.target === 'js') {
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presetSets[0] = presetSets[0].concat([
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require('babel-plugin-transform-es2015-template-literals'),
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require('babel-plugin-transform-es2015-literals'),
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require('babel-plugin-transform-es2015-function-name'),
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require('babel-plugin-transform-es2015-arrow-functions'),
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require('babel-plugin-transform-es2015-block-scoped-functions'),
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require('babel-plugin-transform-class-properties'),
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[require('babel-plugin-transform-es2015-classes'), {loose: true}],
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require('babel-plugin-transform-es2015-object-super'),
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require('babel-plugin-transform-es2015-shorthand-properties'),
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require('babel-plugin-transform-es2015-computed-properties'),
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require('babel-plugin-transform-es2015-for-of'),
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require('babel-plugin-check-es2015-constants'),
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[require('babel-plugin-transform-es2015-spread'), {loose: true}],
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require('babel-plugin-transform-es2015-parameters'),
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[require('babel-plugin-transform-es2015-destructuring'), {loose: true}],
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require('babel-plugin-transform-es2015-block-scoping'),
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require('babel-plugin-transform-es2015-modules-commonjs'),
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require('babel-plugin-transform-es3-member-expression-literals'),
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require('babel-plugin-transform-es3-property-literals'),
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require('babel-plugin-transform-flow-strip-types'),
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require('babel-plugin-transform-object-rest-spread'),
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require('babel-plugin-transform-react-display-name'),
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require('babel-plugin-transform-react-jsx'),
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// Don't enable this plugin unless we're compiling JS, even if the option is true
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options.objectAssign ? require('./plugins/object-assign') : null,
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]);
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}
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// Use two passes to circumvent bug with auto-importer and inline-requires.
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const passPresets = presetSets.map(function(plugins) {
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return {
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plugins: plugins.filter(function(plugin) {
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return plugin != null;
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}),
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};
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});
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return {
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passPerPreset: true,
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presets: passPresets,
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};
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};
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