106 lines
4 KiB
JavaScript
106 lines
4 KiB
JavaScript
|
/** PURE_IMPORTS_START tslib,_OuterSubscriber,_util_subscribeToResult PURE_IMPORTS_END */
|
||
|
|
import * as tslib_1 from "tslib";
|
||
|
|
import { OuterSubscriber } from '../OuterSubscriber';
|
||
|
|
import { subscribeToResult } from '../util/subscribeToResult';
|
||
|
|
export function expand(project, concurrent, scheduler) {
|
||
|
|
if (concurrent === void 0) {
|
||
|
|
concurrent = Number.POSITIVE_INFINITY;
|
||
|
|
}
|
||
|
|
if (scheduler === void 0) {
|
||
|
|
scheduler = undefined;
|
||
|
|
}
|
||
|
|
concurrent = (concurrent || 0) < 1 ? Number.POSITIVE_INFINITY : concurrent;
|
||
|
|
return function (source) { return source.lift(new ExpandOperator(project, concurrent, scheduler)); };
|
||
|
|
}
|
||
|
|
var ExpandOperator = /*@__PURE__*/ (function () {
|
||
|
|
function ExpandOperator(project, concurrent, scheduler) {
|
||
|
|
this.project = project;
|
||
|
|
this.concurrent = concurrent;
|
||
|
|
this.scheduler = scheduler;
|
||
|
|
}
|
||
|
|
ExpandOperator.prototype.call = function (subscriber, source) {
|
||
|
|
return source.subscribe(new ExpandSubscriber(subscriber, this.project, this.concurrent, this.scheduler));
|
||
|
|
};
|
||
|
|
return ExpandOperator;
|
||
|
|
}());
|
||
|
|
export { ExpandOperator };
|
||
|
|
var ExpandSubscriber = /*@__PURE__*/ (function (_super) {
|
||
|
|
tslib_1.__extends(ExpandSubscriber, _super);
|
||
|
|
function ExpandSubscriber(destination, project, concurrent, scheduler) {
|
||
|
|
var _this = _super.call(this, destination) || this;
|
||
|
|
_this.project = project;
|
||
|
|
_this.concurrent = concurrent;
|
||
|
|
_this.scheduler = scheduler;
|
||
|
|
_this.index = 0;
|
||
|
|
_this.active = 0;
|
||
|
|
_this.hasCompleted = false;
|
||
|
|
if (concurrent < Number.POSITIVE_INFINITY) {
|
||
|
|
_this.buffer = [];
|
||
|
|
}
|
||
|
|
return _this;
|
||
|
|
}
|
||
|
|
ExpandSubscriber.dispatch = function (arg) {
|
||
|
|
var subscriber = arg.subscriber, result = arg.result, value = arg.value, index = arg.index;
|
||
|
|
subscriber.subscribeToProjection(result, value, index);
|
||
|
|
};
|
||
|
|
ExpandSubscriber.prototype._next = function (value) {
|
||
|
|
var destination = this.destination;
|
||
|
|
if (destination.closed) {
|
||
|
|
this._complete();
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
var index = this.index++;
|
||
|
|
if (this.active < this.concurrent) {
|
||
|
|
destination.next(value);
|
||
|
|
try {
|
||
|
|
var project = this.project;
|
||
|
|
var result = project(value, index);
|
||
|
|
if (!this.scheduler) {
|
||
|
|
this.subscribeToProjection(result, value, index);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
var state = { subscriber: this, result: result, value: value, index: index };
|
||
|
|
var destination_1 = this.destination;
|
||
|
|
destination_1.add(this.scheduler.schedule(ExpandSubscriber.dispatch, 0, state));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
catch (e) {
|
||
|
|
destination.error(e);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
this.buffer.push(value);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
ExpandSubscriber.prototype.subscribeToProjection = function (result, value, index) {
|
||
|
|
this.active++;
|
||
|
|
var destination = this.destination;
|
||
|
|
destination.add(subscribeToResult(this, result, value, index));
|
||
|
|
};
|
||
|
|
ExpandSubscriber.prototype._complete = function () {
|
||
|
|
this.hasCompleted = true;
|
||
|
|
if (this.hasCompleted && this.active === 0) {
|
||
|
|
this.destination.complete();
|
||
|
|
}
|
||
|
|
this.unsubscribe();
|
||
|
|
};
|
||
|
|
ExpandSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
|
||
|
|
this._next(innerValue);
|
||
|
|
};
|
||
|
|
ExpandSubscriber.prototype.notifyComplete = function (innerSub) {
|
||
|
|
var buffer = this.buffer;
|
||
|
|
var destination = this.destination;
|
||
|
|
destination.remove(innerSub);
|
||
|
|
this.active--;
|
||
|
|
if (buffer && buffer.length > 0) {
|
||
|
|
this._next(buffer.shift());
|
||
|
|
}
|
||
|
|
if (this.hasCompleted && this.active === 0) {
|
||
|
|
this.destination.complete();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
return ExpandSubscriber;
|
||
|
|
}(OuterSubscriber));
|
||
|
|
export { ExpandSubscriber };
|
||
|
|
//# sourceMappingURL=expand.js.map
|