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29 lines
937 B
29 lines
937 B
"use strict";
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/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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Object.defineProperty(exports, "__esModule", { value: true });
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class LazyValue {
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constructor(_getValue) {
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this._getValue = _getValue;
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this._hasValue = false;
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}
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get value() {
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if (!this._hasValue) {
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this._hasValue = true;
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this._value = this._getValue();
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}
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return this._value;
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}
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get hasValue() {
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return this._hasValue;
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}
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map(f) {
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return new LazyValue(() => f(this.value));
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}
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}
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function lazy(getValue) {
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return new LazyValue(getValue);
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}
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exports.lazy = lazy;
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