1 | import { Subscriber } from '../Subscriber';
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2 | export function takeWhile(predicate, inclusive = false) {
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3 | return (source) => source.lift(new TakeWhileOperator(predicate, inclusive));
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4 | }
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5 | class TakeWhileOperator {
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6 | constructor(predicate, inclusive) {
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7 | this.predicate = predicate;
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8 | this.inclusive = inclusive;
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9 | }
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10 | call(subscriber, source) {
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11 | return source.subscribe(new TakeWhileSubscriber(subscriber, this.predicate, this.inclusive));
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12 | }
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13 | }
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14 | class TakeWhileSubscriber extends Subscriber {
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15 | constructor(destination, predicate, inclusive) {
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16 | super(destination);
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17 | this.predicate = predicate;
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18 | this.inclusive = inclusive;
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19 | this.index = 0;
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20 | }
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21 | _next(value) {
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22 | const destination = this.destination;
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23 | let result;
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24 | try {
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25 | result = this.predicate(value, this.index++);
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26 | }
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27 | catch (err) {
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28 | destination.error(err);
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29 | return;
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30 | }
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31 | this.nextOrComplete(value, result);
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32 | }
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33 | nextOrComplete(value, predicateResult) {
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34 | const destination = this.destination;
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35 | if (Boolean(predicateResult)) {
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36 | destination.next(value);
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37 | }
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38 | else {
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39 | if (this.inclusive) {
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40 | destination.next(value);
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41 | }
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42 | destination.complete();
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43 | }
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44 | }
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45 | }
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46 | //# sourceMappingURL=takeWhile.js.map |
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