2844dd2972
This change does not alter the current behavior, but makes it easier to introduce `TaskQueue`s implementing different task selection algorithms, for example to support executing multiple tasks in parallel (while respecting interdependencies between them). Inspired by/Based on @alxhub's prototype: alxhub/angular@cb631bdb1 PR Close #32427
46 lines
1.4 KiB
TypeScript
46 lines
1.4 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {Logger} from '../logging/logger';
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import {PackageJsonUpdater} from '../writing/package_json_updater';
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import {AnalyzeEntryPointsFn, CreateCompileFn, Executor} from './api';
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import {onTaskCompleted} from './utils';
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/**
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* An `Executor` that processes all tasks serially and completes synchronously.
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*/
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export class SingleProcessExecutor implements Executor {
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constructor(private logger: Logger, private pkgJsonUpdater: PackageJsonUpdater) {}
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execute(analyzeEntryPoints: AnalyzeEntryPointsFn, createCompileFn: CreateCompileFn): void {
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this.logger.debug(`Running ngcc on ${this.constructor.name}.`);
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const taskQueue = analyzeEntryPoints();
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const compile =
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createCompileFn((task, outcome) => onTaskCompleted(this.pkgJsonUpdater, task, outcome));
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// Process all tasks.
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while (!taskQueue.allTasksCompleted) {
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const task = taskQueue.getNextTask() !;
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compile(task);
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taskQueue.markTaskCompleted(task);
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}
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}
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}
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/**
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* An `Executor` that processes all tasks serially, but still completes asynchronously.
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*/
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export class AsyncSingleProcessExecutor extends SingleProcessExecutor {
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async execute(...args: Parameters<Executor['execute']>): Promise<void> {
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return super.execute(...args);
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}
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}
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