初始化

uni_modules/UniDevTools/node_modules/echarts/build/transform-dev.js

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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;
+};