bd028579
 易尊强
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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;
};
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