forked from mystiq/hydrogen-web
41 lines
1.1 KiB
TypeScript
41 lines
1.1 KiB
TypeScript
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/*
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Copyright 2020 The Matrix.org Foundation C.I.C.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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interface IAbortable {
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abort();
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}
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type RunFn<T> = (setAbortable: (a: IAbortable) => typeof a) => T;
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export class AbortableOperation<T> {
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public readonly result: T;
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private _abortable: IAbortable | null;
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constructor(run: RunFn<T>) {
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this._abortable = null;
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const setAbortable = abortable => {
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this._abortable = abortable;
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return abortable;
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};
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this.result = run(setAbortable);
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}
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abort() {
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this._abortable?.abort();
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this._abortable = null;
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}
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}
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