work.suroh.tk/node_modules/rxjs/_esm5/observable/GenerateObservable.js

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2019-12-02 12:22:45 +00:00
/** PURE_IMPORTS_START .._Observable,.._util_isScheduler PURE_IMPORTS_END */
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b)
if (b.hasOwnProperty(p))
d[p] = b[p];
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
import { Observable } from '../Observable';
import { isScheduler } from '../util/isScheduler';
var selfSelector = function (value) { return value; };
/**
* We need this JSDoc comment for affecting ESDoc.
* @extends {Ignored}
* @hide true
*/
export var GenerateObservable = /*@__PURE__*/ (/*@__PURE__*/ function (_super) {
__extends(GenerateObservable, _super);
function GenerateObservable(initialState, condition, iterate, resultSelector, scheduler) {
_super.call(this);
this.initialState = initialState;
this.condition = condition;
this.iterate = iterate;
this.resultSelector = resultSelector;
this.scheduler = scheduler;
}
GenerateObservable.create = function (initialStateOrOptions, condition, iterate, resultSelectorOrObservable, scheduler) {
if (arguments.length == 1) {
return new GenerateObservable(initialStateOrOptions.initialState, initialStateOrOptions.condition, initialStateOrOptions.iterate, initialStateOrOptions.resultSelector || selfSelector, initialStateOrOptions.scheduler);
}
if (resultSelectorOrObservable === undefined || isScheduler(resultSelectorOrObservable)) {
return new GenerateObservable(initialStateOrOptions, condition, iterate, selfSelector, resultSelectorOrObservable);
}
return new GenerateObservable(initialStateOrOptions, condition, iterate, resultSelectorOrObservable, scheduler);
};
/** @deprecated internal use only */ GenerateObservable.prototype._subscribe = function (subscriber) {
var state = this.initialState;
if (this.scheduler) {
return this.scheduler.schedule(GenerateObservable.dispatch, 0, {
subscriber: subscriber,
iterate: this.iterate,
condition: this.condition,
resultSelector: this.resultSelector,
state: state
});
}
var _a = this, condition = _a.condition, resultSelector = _a.resultSelector, iterate = _a.iterate;
do {
if (condition) {
var conditionResult = void 0;
try {
conditionResult = condition(state);
}
catch (err) {
subscriber.error(err);
return;
}
if (!conditionResult) {
subscriber.complete();
break;
}
}
var value = void 0;
try {
value = resultSelector(state);
}
catch (err) {
subscriber.error(err);
return;
}
subscriber.next(value);
if (subscriber.closed) {
break;
}
try {
state = iterate(state);
}
catch (err) {
subscriber.error(err);
return;
}
} while (true);
};
GenerateObservable.dispatch = function (state) {
var subscriber = state.subscriber, condition = state.condition;
if (subscriber.closed) {
return;
}
if (state.needIterate) {
try {
state.state = state.iterate(state.state);
}
catch (err) {
subscriber.error(err);
return;
}
}
else {
state.needIterate = true;
}
if (condition) {
var conditionResult = void 0;
try {
conditionResult = condition(state.state);
}
catch (err) {
subscriber.error(err);
return;
}
if (!conditionResult) {
subscriber.complete();
return;
}
if (subscriber.closed) {
return;
}
}
var value;
try {
value = state.resultSelector(state.state);
}
catch (err) {
subscriber.error(err);
return;
}
if (subscriber.closed) {
return;
}
subscriber.next(value);
if (subscriber.closed) {
return;
}
return this.schedule(state);
};
return GenerateObservable;
}(Observable));
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