99 lines
2.7 KiB
JavaScript
99 lines
2.7 KiB
JavaScript
import { Subscriber } from '../Subscriber';
|
|
export function sequenceEqual(compareTo, comparator) {
|
|
return (source) => source.lift(new SequenceEqualOperator(compareTo, comparator));
|
|
}
|
|
export class SequenceEqualOperator {
|
|
constructor(compareTo, comparator) {
|
|
this.compareTo = compareTo;
|
|
this.comparator = comparator;
|
|
}
|
|
call(subscriber, source) {
|
|
return source.subscribe(new SequenceEqualSubscriber(subscriber, this.compareTo, this.comparator));
|
|
}
|
|
}
|
|
export class SequenceEqualSubscriber extends Subscriber {
|
|
constructor(destination, compareTo, comparator) {
|
|
super(destination);
|
|
this.compareTo = compareTo;
|
|
this.comparator = comparator;
|
|
this._a = [];
|
|
this._b = [];
|
|
this._oneComplete = false;
|
|
this.destination.add(compareTo.subscribe(new SequenceEqualCompareToSubscriber(destination, this)));
|
|
}
|
|
_next(value) {
|
|
if (this._oneComplete && this._b.length === 0) {
|
|
this.emit(false);
|
|
}
|
|
else {
|
|
this._a.push(value);
|
|
this.checkValues();
|
|
}
|
|
}
|
|
_complete() {
|
|
if (this._oneComplete) {
|
|
this.emit(this._a.length === 0 && this._b.length === 0);
|
|
}
|
|
else {
|
|
this._oneComplete = true;
|
|
}
|
|
this.unsubscribe();
|
|
}
|
|
checkValues() {
|
|
const { _a, _b, comparator } = this;
|
|
while (_a.length > 0 && _b.length > 0) {
|
|
let a = _a.shift();
|
|
let b = _b.shift();
|
|
let areEqual = false;
|
|
try {
|
|
areEqual = comparator ? comparator(a, b) : a === b;
|
|
}
|
|
catch (e) {
|
|
this.destination.error(e);
|
|
}
|
|
if (!areEqual) {
|
|
this.emit(false);
|
|
}
|
|
}
|
|
}
|
|
emit(value) {
|
|
const { destination } = this;
|
|
destination.next(value);
|
|
destination.complete();
|
|
}
|
|
nextB(value) {
|
|
if (this._oneComplete && this._a.length === 0) {
|
|
this.emit(false);
|
|
}
|
|
else {
|
|
this._b.push(value);
|
|
this.checkValues();
|
|
}
|
|
}
|
|
completeB() {
|
|
if (this._oneComplete) {
|
|
this.emit(this._a.length === 0 && this._b.length === 0);
|
|
}
|
|
else {
|
|
this._oneComplete = true;
|
|
}
|
|
}
|
|
}
|
|
class SequenceEqualCompareToSubscriber extends Subscriber {
|
|
constructor(destination, parent) {
|
|
super(destination);
|
|
this.parent = parent;
|
|
}
|
|
_next(value) {
|
|
this.parent.nextB(value);
|
|
}
|
|
_error(err) {
|
|
this.parent.error(err);
|
|
this.unsubscribe();
|
|
}
|
|
_complete() {
|
|
this.parent.completeB();
|
|
this.unsubscribe();
|
|
}
|
|
}
|
|
//# sourceMappingURL=sequenceEqual.js.map
|