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37 lines
1.3 KiB
TypeScript
37 lines
1.3 KiB
TypeScript
/**
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* Copyright (c) Microsoft Corporation.
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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 { EventEmitter } from 'events';
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import { helper } from './helper';
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export class ExtendedEventEmitter extends EventEmitter {
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protected _abortPromiseForEvent(event: string) {
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return new Promise<Error>(() => void 0);
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}
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protected _timeoutForEvent(event: string): number {
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throw new Error('unimplemented');
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}
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async waitForEvent(event: string, optionsOrPredicate: Function|{ predicate?: Function, timeout?: number } = {}): Promise<any> {
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const {
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predicate = () => true,
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timeout = this._timeoutForEvent(event)
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} = typeof optionsOrPredicate === 'function' ? {predicate: optionsOrPredicate} : optionsOrPredicate;
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return helper.waitForEvent(this, event, predicate, timeout, this._abortPromiseForEvent(event));
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}
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}
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