ducha-qianduan/node_modules/echarts/build/rollup-plugin-ec-remove-dev.js

/*
* 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.
*/

/**
 * Remove the code of `if (__DEV__) { ... }`.
 *
 * Usage:
 *
 * import ecRemoveDevPlugin from 'echats/build/rollup-plugin-ec-remove-dev';
 * let rollupConfig = {
 *     plugins: [
 *         ecRemoveDevPlugin(),
 *         ...
 *     ]
 * };
 */

const babel = require('@babel/core');
const removeDEVPlugin = require('zrender/build/babel-plugin-transform-remove-dev');

/**
 * @param {Object} [opt]
 * @param {Object} [opt.sourcemap]
 */
module.exports = function ({sourcemap} = {}) {

    return {
        transform: function (sourceCode) {

            let {code, map} = babel.transform(sourceCode, {
                plugins: [removeDEVPlugin],
                sourceMaps: sourcemap
            });

            return {code, map};
        }
    };
};