491f0cd08a
* Copyright headers 1 * Licence headers 2 * Copyright Headers 3 * Copyright Headers 4 * Copyright Headers 5 * Copyright Headers 6 * Copyright headers 7 * Add copyright headers for html and config file * Replace license files and update package.json * Update with CLA * lint
25 lines
847 B
TypeScript
25 lines
847 B
TypeScript
/*
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Copyright 2024 New Vector Ltd.
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Copyright 2022 The Matrix.org Foundation C.I.C.
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SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only
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Please see LICENSE files in the repository root for full details.
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*/
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type StringifyReplacer = (this: any, key: string, value: any) => any;
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// From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Cyclic_object_value#circular_references
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// Injects `<$ cycle-trimmed $>` wherever it cuts a cyclical object relationship
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export const getCircularReplacer = (): StringifyReplacer => {
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const seen = new WeakSet();
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return (key: string, value: any): any => {
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if (typeof value === "object" && value !== null) {
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if (seen.has(value)) {
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return "<$ cycle-trimmed $>";
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}
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seen.add(value);
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}
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return value;
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};
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};
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