133 lines
4.1 KiB
JavaScript
133 lines
4.1 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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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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'use strict';
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const defaultPlugins = [
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[require('@babel/plugin-transform-block-scoping')],
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// the flow strip types plugin must go BEFORE class properties!
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// there'll be a test case that fails if you don't.
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[require('@babel/plugin-transform-flow-strip-types')],
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[
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require('@babel/plugin-proposal-class-properties'),
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// use `this.foo = bar` instead of `this.defineProperty('foo', ...)`
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{loose: true},
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],
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[require('@babel/plugin-transform-computed-properties')],
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[require('@babel/plugin-transform-destructuring')],
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[require('@babel/plugin-transform-function-name')],
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[require('@babel/plugin-transform-literals')],
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[require('@babel/plugin-transform-parameters')],
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[require('@babel/plugin-transform-shorthand-properties')],
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[require('@babel/plugin-transform-react-jsx')],
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[require('@babel/plugin-transform-regenerator')],
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[require('@babel/plugin-transform-sticky-regex')],
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[require('@babel/plugin-transform-unicode-regex')],
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[
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require('@babel/plugin-transform-modules-commonjs'),
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{
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strict: false,
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strictMode: false, // prevent "use strict" injections
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allowTopLevelThis: true, // dont rewrite global `this` -> `undefined`
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},
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],
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];
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const es2015ArrowFunctions = [
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require('@babel/plugin-transform-arrow-functions'),
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];
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const es2015Classes = [require('@babel/plugin-transform-classes')];
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const es2015ForOf = [require('@babel/plugin-transform-for-of'), {loose: true}];
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const es2015Spread = [require('@babel/plugin-transform-spread')];
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const es2015TemplateLiterals = [
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require('@babel/plugin-transform-template-literals'),
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{loose: true}, // dont 'a'.concat('b'), just use 'a'+'b'
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];
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const exponentiationOperator = [
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require('@babel/plugin-transform-exponentiation-operator'),
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];
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const objectAssign = [require('@babel/plugin-transform-object-assign')];
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const objectRestSpread = [require('@babel/plugin-proposal-object-rest-spread')];
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const optionalChaining = [require('@babel/plugin-proposal-optional-chaining')];
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const reactDisplayName = [
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require('@babel/plugin-transform-react-display-name'),
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];
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const reactJsxSource = [require('@babel/plugin-transform-react-jsx-source')];
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const symbolMember = [require('../transforms/transform-symbol-member')];
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const getPreset = (src, options) => {
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const isNull = src === null || src === undefined;
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const hasClass = isNull || src.indexOf('class') !== -1;
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const hasForOf =
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isNull || (src.indexOf('for') !== -1 && src.indexOf('of') !== -1);
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const extraPlugins = [];
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if (hasClass) {
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extraPlugins.push(es2015Classes);
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}
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if (isNull || src.indexOf('=>') !== -1) {
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extraPlugins.push(es2015ArrowFunctions);
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}
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if (isNull || hasClass || src.indexOf('...') !== -1) {
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extraPlugins.push(es2015Spread);
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extraPlugins.push(objectRestSpread);
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}
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if (isNull || src.indexOf('`') !== -1) {
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extraPlugins.push(es2015TemplateLiterals);
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}
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if (isNull || src.indexOf('**') !== -1) {
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extraPlugins.push(exponentiationOperator);
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}
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if (isNull || src.indexOf('Object.assign') !== -1) {
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extraPlugins.push(objectAssign);
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}
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if (hasForOf) {
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extraPlugins.push(es2015ForOf);
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}
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if (hasForOf || src.indexOf('Symbol') !== -1) {
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extraPlugins.push(symbolMember);
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}
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if (
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isNull ||
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src.indexOf('React.createClass') !== -1 ||
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src.indexOf('createReactClass') !== -1
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) {
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extraPlugins.push(reactDisplayName);
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}
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if (isNull || src.indexOf('?.') !== -1) {
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extraPlugins.push(optionalChaining);
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}
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if (options && options.dev) {
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extraPlugins.push(reactJsxSource);
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}
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return {
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comments: false,
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compact: true,
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plugins: defaultPlugins.concat(extraPlugins),
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};
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};
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const base = getPreset(null);
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const devTools = getPreset(null, {dev: true});
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module.exports = options => {
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if (options.withDevTools == null) {
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const env = process.env.BABEL_ENV || process.env.NODE_ENV;
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if (!env || env === 'development') {
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return devTools;
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}
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}
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return base;
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};
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module.exports.getPreset = getPreset;
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