ember-concurrency/dist/-private/external/task-instance/base.js

Improved concurrency/async primitives for Ember.js

import { INITIAL_STATE } from './initial-state.js';
import { yieldableSymbol } from '../yieldables.js';
import { CancelRequest, CANCEL_KIND_EXPLICIT } from './cancelation.js';

const EXPLICIT_CANCEL_REASON = '.cancel() was explicitly called';
class BaseTaskInstance {
  constructor({
    task,
    args,
    executor,
    performType,
    hasEnabledEvents
  }) {
    this.task = task;
    this.args = args;
    this.performType = performType;
    this.executor = executor;
    this.executor.taskInstance = this;
    this.hasEnabledEvents = hasEnabledEvents;
  }
  setState() {}
  onStarted() {}
  onSuccess() {}
  onError() {}
  onCancel() {}
  formatCancelReason() {}
  selfCancelLoopWarning() {}
  onFinalize(callback) {
    this.executor.onFinalize(callback);
  }
  proceed(index, yieldResumeType, value) {
    this.executor.proceedChecked(index, yieldResumeType, value);
  }
  [yieldableSymbol](parentTaskInstance, resumeIndex) {
    return this.executor.onYielded(parentTaskInstance, resumeIndex);
  }
  cancel(cancelReason = EXPLICIT_CANCEL_REASON) {
    this.executor.cancel(new CancelRequest(CANCEL_KIND_EXPLICIT, cancelReason));
  }
  then(...args) {
    return this.executor.promise().then(...args);
  }
  catch(...args) {
    return this.executor.promise().catch(...args);
  }
  finally(...args) {
    return this.executor.promise().finally(...args);
  }
  toString() {
    return `${this.task} TaskInstance`;
  }
  start() {
    this.executor.start();
    return this;
  }
}
Object.assign(BaseTaskInstance.prototype, INITIAL_STATE);
Object.assign(BaseTaskInstance.prototype, {
  state: 'waiting',
  isDropped: false,
  isRunning: true
});

export { BaseTaskInstance };
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