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- {"ast":null,"code":"import { Action } from './Action';\nexport class AsyncAction extends Action {\n constructor(scheduler, work) {\n super(scheduler, work);\n this.scheduler = scheduler;\n this.work = work;\n this.pending = false;\n }\n schedule(state, delay = 0) {\n if (this.closed) {\n return this;\n }\n this.state = state;\n const id = this.id;\n const scheduler = this.scheduler;\n if (id != null) {\n this.id = this.recycleAsyncId(scheduler, id, delay);\n }\n this.pending = true;\n this.delay = delay;\n this.id = this.id || this.requestAsyncId(scheduler, this.id, delay);\n return this;\n }\n requestAsyncId(scheduler, id, delay = 0) {\n return setInterval(scheduler.flush.bind(scheduler, this), delay);\n }\n recycleAsyncId(scheduler, id, delay = 0) {\n if (delay !== null && this.delay === delay && this.pending === false) {\n return id;\n }\n clearInterval(id);\n return undefined;\n }\n execute(state, delay) {\n if (this.closed) {\n return new Error('executing a cancelled action');\n }\n this.pending = false;\n const error = this._execute(state, delay);\n if (error) {\n return error;\n } else if (this.pending === false && this.id != null) {\n this.id = this.recycleAsyncId(this.scheduler, this.id, null);\n }\n }\n _execute(state, delay) {\n let errored = false;\n let errorValue = undefined;\n try {\n this.work(state);\n } catch (e) {\n errored = true;\n errorValue = !!e && e || new Error(e);\n }\n if (errored) {\n this.unsubscribe();\n return errorValue;\n }\n }\n _unsubscribe() {\n const id = this.id;\n const scheduler = this.scheduler;\n const actions = scheduler.actions;\n const index = actions.indexOf(this);\n this.work = null;\n this.state = null;\n this.pending = false;\n this.scheduler = null;\n if (index !== -1) {\n actions.splice(index, 1);\n }\n if (id != null) {\n this.id = this.recycleAsyncId(scheduler, id, null);\n }\n this.delay = null;\n }\n}\n//# sourceMappingURL=AsyncAction.js.map","map":null,"metadata":{},"sourceType":"module","externalDependencies":[]}
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