56 lines
1.6 KiB
JavaScript
56 lines
1.6 KiB
JavaScript
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"use strict";
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// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
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// See LICENSE in the project root for license information.
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.ProtectableMapView = void 0;
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/**
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* The internal wrapper used by ProtectableMap. It extends the real `Map<K, V>` base class,
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* but hooks the destructive operations (clear/delete/set) to give the owner a chance
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* to block them.
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*
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* NOTE: This is not a public API.
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*/
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class ProtectableMapView extends Map {
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constructor(owner, parameters) {
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super();
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this._owner = owner;
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this._parameters = parameters;
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}
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clear() {
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// override
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if (this._parameters.onClear) {
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this._parameters.onClear(this._owner);
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}
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super.clear();
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}
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delete(key) {
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// override
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if (this._parameters.onDelete) {
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this._parameters.onDelete(this._owner, key);
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}
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return super.delete(key);
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}
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set(key, value) {
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// override
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let modifiedValue = value;
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if (this._parameters.onSet) {
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modifiedValue = this._parameters.onSet(this._owner, key, modifiedValue);
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}
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super.set(key, modifiedValue);
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return this;
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}
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// INTERNAL USAGE ONLY
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_clearUnprotected() {
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super.clear();
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}
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// INTERNAL USAGE ONLY
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_deleteUnprotected(key) {
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return super.delete(key);
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}
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// INTERNAL USAGE ONLY
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_setUnprotected(key, value) {
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super.set(key, value);
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}
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}
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exports.ProtectableMapView = ProtectableMapView;
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//# sourceMappingURL=ProtectableMapView.js.map
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