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25 lines
817 B
TypeScript
25 lines
817 B
TypeScript
/*
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* SPDX-FileCopyrightText: syuilo and other misskey contributors
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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// structredCloneが遅いため
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// SEE: http://var.blog.jp/archives/86038606.html
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// あと、Vue RefをIndexedDBに保存しようとしてstructredCloneを使ったらエラーになった
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// https://github.com/misskey-dev/misskey/pull/8098#issuecomment-1114144045
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type Cloneable = string | number | boolean | null | { [key: string]: Cloneable } | Cloneable[];
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export function deepClone<T extends Cloneable>(x: T): T {
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if (typeof x === 'object') {
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if (x === null) return x;
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if (Array.isArray(x)) return x.map(deepClone) as T;
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const obj = {} as Record<string, Cloneable>;
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for (const [k, v] of Object.entries(x)) {
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obj[k] = deepClone(v);
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}
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return obj as T;
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} else {
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return x;
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}
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} |