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| /* | |
| * Licensed to the Apache Software Foundation (ASF) under one | |
| * or more contributor license agreements. See the NOTICE file | |
| * distributed with this work for additional information | |
| * regarding copyright ownership. The ASF licenses this file | |
| * to you under the Apache License, Version 2.0 (the | |
| * "License"); you may not use this file except in compliance | |
| * with the License. You may obtain a copy of the License at | |
| * | |
| * http://www.apache.org/licenses/LICENSE-2.0 | |
| * | |
| * Unless required by applicable law or agreed to in writing, | |
| * software distributed under the License is distributed on an | |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
| * KIND, either express or implied. See the License for the | |
| * specific language governing permissions and limitations | |
| * under the License. | |
| */ | |
| const babel = require('@babel/core'); | |
| const parser = require('@babel/parser'); | |
| function transformDEVPlugin ({types, template}) { | |
| return { | |
| visitor: { | |
| Identifier: { | |
| enter(path, state) { | |
| if (path.isIdentifier({ name: '__DEV__' }) && path.scope.hasGlobal('__DEV__')) { | |
| path.replaceWith( | |
| parser.parseExpression(state.opts.expr) | |
| ); | |
| } | |
| } | |
| } | |
| } | |
| }; | |
| }; | |
| module.exports.transform = function (sourceCode, sourcemap, expr) { | |
| let {code, map} = babel.transformSync(sourceCode, { | |
| plugins: [ [transformDEVPlugin, { | |
| expr: expr || 'process.env.NODE_ENV !== \'production\'' | |
| }] ], | |
| compact: false, | |
| sourceMaps: sourcemap | |
| }); | |
| return {code, map}; | |
| }; | |
| /** | |
| * @param {string} code | |
| * @throws {Error} If check failed. | |
| */ | |
| module.exports.recheckDEV = function (code) { | |
| return code.indexOf('process.env.NODE_ENV') >= 0; | |
| }; | |