wishthis/node_modules/rxjs/_esm2015/internal/scheduler/AsyncScheduler.js
2022-01-21 09:28:41 +01:00

46 lines
No EOL
1.3 KiB
JavaScript

import { Scheduler } from '../Scheduler';
export class AsyncScheduler extends Scheduler {
constructor(SchedulerAction, now = Scheduler.now) {
super(SchedulerAction, () => {
if (AsyncScheduler.delegate && AsyncScheduler.delegate !== this) {
return AsyncScheduler.delegate.now();
}
else {
return now();
}
});
this.actions = [];
this.active = false;
this.scheduled = undefined;
}
schedule(work, delay = 0, state) {
if (AsyncScheduler.delegate && AsyncScheduler.delegate !== this) {
return AsyncScheduler.delegate.schedule(work, delay, state);
}
else {
return super.schedule(work, delay, state);
}
}
flush(action) {
const { actions } = this;
if (this.active) {
actions.push(action);
return;
}
let error;
this.active = true;
do {
if (error = action.execute(action.state, action.delay)) {
break;
}
} while (action = actions.shift());
this.active = false;
if (error) {
while (action = actions.shift()) {
action.unsubscribe();
}
throw error;
}
}
}
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