1 | /** PURE_IMPORTS_START tslib,_Subscriber PURE_IMPORTS_END */
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2 | import * as tslib_1 from "tslib";
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3 | import { Subscriber } from '../Subscriber';
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4 | export function find(predicate, thisArg) {
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5 | if (typeof predicate !== 'function') {
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6 | throw new TypeError('predicate is not a function');
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7 | }
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8 | return function (source) { return source.lift(new FindValueOperator(predicate, source, false, thisArg)); };
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9 | }
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10 | var FindValueOperator = /*@__PURE__*/ (function () {
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11 | function FindValueOperator(predicate, source, yieldIndex, thisArg) {
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12 | this.predicate = predicate;
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13 | this.source = source;
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14 | this.yieldIndex = yieldIndex;
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15 | this.thisArg = thisArg;
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16 | }
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17 | FindValueOperator.prototype.call = function (observer, source) {
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18 | return source.subscribe(new FindValueSubscriber(observer, this.predicate, this.source, this.yieldIndex, this.thisArg));
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19 | };
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20 | return FindValueOperator;
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21 | }());
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22 | export { FindValueOperator };
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23 | var FindValueSubscriber = /*@__PURE__*/ (function (_super) {
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24 | tslib_1.__extends(FindValueSubscriber, _super);
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25 | function FindValueSubscriber(destination, predicate, source, yieldIndex, thisArg) {
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26 | var _this = _super.call(this, destination) || this;
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27 | _this.predicate = predicate;
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28 | _this.source = source;
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29 | _this.yieldIndex = yieldIndex;
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30 | _this.thisArg = thisArg;
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31 | _this.index = 0;
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32 | return _this;
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33 | }
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34 | FindValueSubscriber.prototype.notifyComplete = function (value) {
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35 | var destination = this.destination;
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36 | destination.next(value);
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37 | destination.complete();
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38 | this.unsubscribe();
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39 | };
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40 | FindValueSubscriber.prototype._next = function (value) {
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41 | var _a = this, predicate = _a.predicate, thisArg = _a.thisArg;
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42 | var index = this.index++;
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43 | try {
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44 | var result = predicate.call(thisArg || this, value, index, this.source);
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45 | if (result) {
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46 | this.notifyComplete(this.yieldIndex ? index : value);
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47 | }
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48 | }
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49 | catch (err) {
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50 | this.destination.error(err);
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51 | }
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52 | };
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53 | FindValueSubscriber.prototype._complete = function () {
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54 | this.notifyComplete(this.yieldIndex ? -1 : undefined);
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55 | };
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56 | return FindValueSubscriber;
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57 | }(Subscriber));
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58 | export { FindValueSubscriber };
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59 | //# sourceMappingURL=find.js.map
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