NET-Web-API-w-Angular/my-app/node_modules/rxjs/dist/esm/internal/scheduler/AsyncAction.js

82 lines
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2.5 KiB
JavaScript
Executable file

import { Action } from './Action';
import { intervalProvider } from './intervalProvider';
import { arrRemove } from '../util/arrRemove';
export class AsyncAction extends Action {
constructor(scheduler, work) {
super(scheduler, work);
this.scheduler = scheduler;
this.work = work;
this.pending = false;
}
schedule(state, delay = 0) {
var _a;
if (this.closed) {
return this;
}
this.state = state;
const id = this.id;
const scheduler = this.scheduler;
if (id != null) {
this.id = this.recycleAsyncId(scheduler, id, delay);
}
this.pending = true;
this.delay = delay;
this.id = (_a = this.id) !== null && _a !== void 0 ? _a : this.requestAsyncId(scheduler, this.id, delay);
return this;
}
requestAsyncId(scheduler, _id, delay = 0) {
return intervalProvider.setInterval(scheduler.flush.bind(scheduler, this), delay);
}
recycleAsyncId(_scheduler, id, delay = 0) {
if (delay != null && this.delay === delay && this.pending === false) {
return id;
}
if (id != null) {
intervalProvider.clearInterval(id);
}
return undefined;
}
execute(state, delay) {
if (this.closed) {
return new Error('executing a cancelled action');
}
this.pending = false;
const error = this._execute(state, delay);
if (error) {
return error;
}
else if (this.pending === false && this.id != null) {
this.id = this.recycleAsyncId(this.scheduler, this.id, null);
}
}
_execute(state, _delay) {
let errored = false;
let errorValue;
try {
this.work(state);
}
catch (e) {
errored = true;
errorValue = e ? e : new Error('Scheduled action threw falsy error');
}
if (errored) {
this.unsubscribe();
return errorValue;
}
}
unsubscribe() {
if (!this.closed) {
const { id, scheduler } = this;
const { actions } = scheduler;
this.work = this.state = this.scheduler = null;
this.pending = false;
arrRemove(actions, this);
if (id != null) {
this.id = this.recycleAsyncId(scheduler, id, null);
}
this.delay = null;
super.unsubscribe();
}
}
}
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