superset safeStringify 源码
superset safeStringify 代码
文件路径：/superset-frontend/src/utils/safeStringify.ts
/**
* 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.
*/
/**
* A Stringify function that will not crash when it runs into circular JSON references,
* unlike JSON.stringify. Any circular references are simply omitted, as if there had
* been no data present
* @param object any JSON object to be stringified
*/
export function safeStringify(object: any): string {
const cache = new Set();
return JSON.stringify(object, (key, value) => {
if (typeof value === 'object' && value !== null) {
if (cache.has(value)) {
// We've seen this object before
try {
// Quick deep copy to duplicate if this is a repeat rather than a circle.
return JSON.parse(JSON.stringify(value));
} catch (err) {
// Discard key if value cannot be duplicated.
return; // eslint-disable-line consistent-return
}
}
// Store the value in our cache.
cache.add(value);
}
return value;
});
}
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