puppeteer/packages/puppeteer-core/src/common/TaskQueue.ts
jrandolf f42336cf83
feat: separate puppeteer and puppeteer-core (#9023)
This PR moves the puppeteer source code into separate mono-repo packages:

- `puppeteer` and `puppeteer-core` are now separated into their own
packages.
- `puppeteer-core` has a new exports called `puppeteer-core/internal`
for internal usage.

Tests and various tools have been updated to accommodate the migration.
2022-10-05 14:17:03 +02:00

40 lines
1005 B
TypeScript

/**
* Copyright 2020 Google Inc. All rights reserved.
*
* 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
*
* http://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.
*/
/**
* @internal
*/
export class TaskQueue {
#chain: Promise<void>;
constructor() {
this.#chain = Promise.resolve();
}
postTask<T>(task: () => Promise<T>): Promise<T> {
const result = this.#chain.then(task);
this.#chain = result.then(
() => {
return undefined;
},
() => {
return undefined;
}
);
return result;
}
}