40 lines
1.2 KiB
TypeScript
40 lines
1.2 KiB
TypeScript
/**
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* Copyright 2022 Google Inc. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import {ExecutionContext} from './ExecutionContext.js';
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/**
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* @internal
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*/
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export class LazyArg<T> {
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static create = <T>(
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get: (context: ExecutionContext) => Promise<T> | T
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): T => {
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// We don't want to introduce LazyArg to the type system, otherwise we would
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// have to make it public.
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return new LazyArg(get) as unknown as T;
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};
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#get: (context: ExecutionContext) => Promise<T> | T;
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private constructor(get: (context: ExecutionContext) => Promise<T> | T) {
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this.#get = get;
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}
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async get(context: ExecutionContext): Promise<T> {
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return this.#get(context);
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}
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}
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