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keksAccountGUI/node_modulesOLD/rxjs/_esm5/internal/operators/refCount.js
2019-08-11 20:48:02 +02:00

58 lines
2 KiB
JavaScript

/** PURE_IMPORTS_START tslib,_Subscriber PURE_IMPORTS_END */
import * as tslib_1 from "tslib";
import { Subscriber } from '../Subscriber';
export function refCount() {
return function refCountOperatorFunction(source) {
return source.lift(new RefCountOperator(source));
};
}
var RefCountOperator = /*@__PURE__*/ (function () {
function RefCountOperator(connectable) {
this.connectable = connectable;
}
RefCountOperator.prototype.call = function (subscriber, source) {
var connectable = this.connectable;
connectable._refCount++;
var refCounter = new RefCountSubscriber(subscriber, connectable);
var subscription = source.subscribe(refCounter);
if (!refCounter.closed) {
refCounter.connection = connectable.connect();
}
return subscription;
};
return RefCountOperator;
}());
var RefCountSubscriber = /*@__PURE__*/ (function (_super) {
tslib_1.__extends(RefCountSubscriber, _super);
function RefCountSubscriber(destination, connectable) {
var _this = _super.call(this, destination) || this;
_this.connectable = connectable;
return _this;
}
RefCountSubscriber.prototype._unsubscribe = function () {
var connectable = this.connectable;
if (!connectable) {
this.connection = null;
return;
}
this.connectable = null;
var refCount = connectable._refCount;
if (refCount <= 0) {
this.connection = null;
return;
}
connectable._refCount = refCount - 1;
if (refCount > 1) {
this.connection = null;
return;
}
var connection = this.connection;
var sharedConnection = connectable._connection;
this.connection = null;
if (sharedConnection && (!connection || sharedConnection === connection)) {
sharedConnection.unsubscribe();
}
};
return RefCountSubscriber;
}(Subscriber));
//# sourceMappingURL=refCount.js.map