2021-11-05 02:29:02 +01:00
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// Copyright: Ankitects Pty Ltd and contributors
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// License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
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export interface Destroyable {
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destroy(): void;
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}
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export function clearableArray<T>(): (T & Destroyable)[] {
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const list: (T & Destroyable)[] = [];
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return new Proxy(list, {
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get: function (target: (T & Destroyable)[], prop: string | symbol) {
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2021-11-24 01:25:24 +01:00
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if (!(typeof prop === "symbol") && !isNaN(Number(prop)) && !target[prop]) {
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2021-11-05 02:29:02 +01:00
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const item = {} as T & Destroyable;
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const destroy = (): void => {
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const index = list.indexOf(item);
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list.splice(index, 1);
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};
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target[prop] = new Proxy(item, {
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get: function (target: T & Destroyable, prop: string | symbol) {
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if (prop === "destroy") {
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return destroy;
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}
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return target[prop];
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},
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});
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}
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return target[prop];
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},
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});
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}
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