@acutmore/rxjs
Version:
Reactive Extensions for modern JavaScript
143 lines • 5.08 kB
JavaScript
"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
var Observable_1 = require("../Observable");
var isScheduler_1 = require("..//util/isScheduler");
var selfSelector = function (value) { return value; };
/**
* We need this JSDoc comment for affecting ESDoc.
* @extends {Ignored}
* @hide true
*/
var GenerateObservable = /** @class */ (function (_super) {
__extends(GenerateObservable, _super);
function GenerateObservable(initialState, condition, iterate, resultSelector, scheduler) {
var _this = _super.call(this) || this;
_this.initialState = initialState;
_this.condition = condition;
_this.iterate = iterate;
_this.resultSelector = resultSelector;
_this.scheduler = scheduler;
return _this;
}
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_1.isScheduler(resultSelectorOrObservable)) {
return new GenerateObservable(initialStateOrOptions, condition, iterate, selfSelector, resultSelectorOrObservable);
}
return new GenerateObservable(initialStateOrOptions, condition, iterate, resultSelectorOrObservable, scheduler);
};
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_1.Observable));
exports.GenerateObservable = GenerateObservable;
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