73 lines
2.8 KiB
JavaScript
73 lines
2.8 KiB
JavaScript
"use strict";
|
|
var __extends = (this && this.__extends) || (function () {
|
|
var extendStatics = function (d, b) {
|
|
extendStatics = Object.setPrototypeOf ||
|
|
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
|
|
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
|
|
return extendStatics(d, b);
|
|
}
|
|
return function (d, b) {
|
|
extendStatics(d, b);
|
|
function __() { this.constructor = d; }
|
|
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
|
|
};
|
|
})();
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
var Subscriber_1 = require("../Subscriber");
|
|
function find(predicate, thisArg) {
|
|
if (typeof predicate !== 'function') {
|
|
throw new TypeError('predicate is not a function');
|
|
}
|
|
return function (source) { return source.lift(new FindValueOperator(predicate, source, false, thisArg)); };
|
|
}
|
|
exports.find = find;
|
|
var FindValueOperator = (function () {
|
|
function FindValueOperator(predicate, source, yieldIndex, thisArg) {
|
|
this.predicate = predicate;
|
|
this.source = source;
|
|
this.yieldIndex = yieldIndex;
|
|
this.thisArg = thisArg;
|
|
}
|
|
FindValueOperator.prototype.call = function (observer, source) {
|
|
return source.subscribe(new FindValueSubscriber(observer, this.predicate, this.source, this.yieldIndex, this.thisArg));
|
|
};
|
|
return FindValueOperator;
|
|
}());
|
|
exports.FindValueOperator = FindValueOperator;
|
|
var FindValueSubscriber = (function (_super) {
|
|
__extends(FindValueSubscriber, _super);
|
|
function FindValueSubscriber(destination, predicate, source, yieldIndex, thisArg) {
|
|
var _this = _super.call(this, destination) || this;
|
|
_this.predicate = predicate;
|
|
_this.source = source;
|
|
_this.yieldIndex = yieldIndex;
|
|
_this.thisArg = thisArg;
|
|
_this.index = 0;
|
|
return _this;
|
|
}
|
|
FindValueSubscriber.prototype.notifyComplete = function (value) {
|
|
var destination = this.destination;
|
|
destination.next(value);
|
|
destination.complete();
|
|
this.unsubscribe();
|
|
};
|
|
FindValueSubscriber.prototype._next = function (value) {
|
|
var _a = this, predicate = _a.predicate, thisArg = _a.thisArg;
|
|
var index = this.index++;
|
|
try {
|
|
var result = predicate.call(thisArg || this, value, index, this.source);
|
|
if (result) {
|
|
this.notifyComplete(this.yieldIndex ? index : value);
|
|
}
|
|
}
|
|
catch (err) {
|
|
this.destination.error(err);
|
|
}
|
|
};
|
|
FindValueSubscriber.prototype._complete = function () {
|
|
this.notifyComplete(this.yieldIndex ? -1 : undefined);
|
|
};
|
|
return FindValueSubscriber;
|
|
}(Subscriber_1.Subscriber));
|
|
exports.FindValueSubscriber = FindValueSubscriber;
|
|
//# sourceMappingURL=find.js.map
|