| /* |
| * 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; |
| }; |