Marc Mintel
5397309103
Some checks failed
Build & Deploy / 🔍 Prepare (push) Successful in 20s
Build & Deploy / 🧪 QA (push) Failing after 34s
Build & Deploy / 🏗️ Build (push) Has started running
Build & Deploy / 🚀 Deploy (push) Has been cancelled
Build & Deploy / 🧪 Smoke Test (push) Has been cancelled
Build & Deploy / ⚡ Lighthouse (push) Has been cancelled
Build & Deploy / 🔔 Notify (push) Has been cancelled
48 lines
1.5 KiB
Plaintext
48 lines
1.5 KiB
Plaintext
/*
|
|
* Copyright The OpenTelemetry Authors
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* https://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
import { Deferred } from './promise';
|
|
/**
|
|
* Bind the callback and only invoke the callback once regardless how many times `BindOnceFuture.call` is invoked.
|
|
*/
|
|
export class BindOnceFuture {
|
|
_isCalled = false;
|
|
_deferred = new Deferred();
|
|
_callback;
|
|
_that;
|
|
constructor(callback, that) {
|
|
this._callback = callback;
|
|
this._that = that;
|
|
}
|
|
get isCalled() {
|
|
return this._isCalled;
|
|
}
|
|
get promise() {
|
|
return this._deferred.promise;
|
|
}
|
|
call(...args) {
|
|
if (!this._isCalled) {
|
|
this._isCalled = true;
|
|
try {
|
|
Promise.resolve(this._callback.call(this._that, ...args)).then(val => this._deferred.resolve(val), err => this._deferred.reject(err));
|
|
}
|
|
catch (err) {
|
|
this._deferred.reject(err);
|
|
}
|
|
}
|
|
return this._deferred.promise;
|
|
}
|
|
}
|
|
//# sourceMappingURL=callback.js.map |