65 lines
2.3 KiB
JavaScript
65 lines
2.3 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 distinct(keySelector, flushes) {
|
|
return function (source) { return source.lift(new DistinctOperator(keySelector, flushes)); };
|
|
}
|
|
var DistinctOperator = /*@__PURE__*/ (function () {
|
|
function DistinctOperator(keySelector, flushes) {
|
|
this.keySelector = keySelector;
|
|
this.flushes = flushes;
|
|
}
|
|
DistinctOperator.prototype.call = function (subscriber, source) {
|
|
return source.subscribe(new DistinctSubscriber(subscriber, this.keySelector, this.flushes));
|
|
};
|
|
return DistinctOperator;
|
|
}());
|
|
var DistinctSubscriber = /*@__PURE__*/ (function (_super) {
|
|
tslib_1.__extends(DistinctSubscriber, _super);
|
|
function DistinctSubscriber(destination, keySelector, flushes) {
|
|
var _this = _super.call(this, destination) || this;
|
|
_this.keySelector = keySelector;
|
|
_this.values = new Set();
|
|
if (flushes) {
|
|
_this.add(subscribeToResult(_this, flushes));
|
|
}
|
|
return _this;
|
|
}
|
|
DistinctSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
|
|
this.values.clear();
|
|
};
|
|
DistinctSubscriber.prototype.notifyError = function (error, innerSub) {
|
|
this._error(error);
|
|
};
|
|
DistinctSubscriber.prototype._next = function (value) {
|
|
if (this.keySelector) {
|
|
this._useKeySelector(value);
|
|
}
|
|
else {
|
|
this._finalizeNext(value, value);
|
|
}
|
|
};
|
|
DistinctSubscriber.prototype._useKeySelector = function (value) {
|
|
var key;
|
|
var destination = this.destination;
|
|
try {
|
|
key = this.keySelector(value);
|
|
}
|
|
catch (err) {
|
|
destination.error(err);
|
|
return;
|
|
}
|
|
this._finalizeNext(key, value);
|
|
};
|
|
DistinctSubscriber.prototype._finalizeNext = function (key, value) {
|
|
var values = this.values;
|
|
if (!values.has(key)) {
|
|
values.add(key);
|
|
this.destination.next(value);
|
|
}
|
|
};
|
|
return DistinctSubscriber;
|
|
}(OuterSubscriber));
|
|
export { DistinctSubscriber };
|
|
//# sourceMappingURL=distinct.js.map
|