'use strict';
exports.__esModule = true;
exports['default'] = map;
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
function _inherits(subClass, superClass) { Iif (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); Eif (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
function _classCallCheck(instance, Constructor) { Iif (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
var _Subscriber2 = require('../Subscriber');
var _Subscriber3 = _interopRequireDefault(_Subscriber2);
var _utilTryCatch = require('../util/tryCatch');
var _utilTryCatch2 = _interopRequireDefault(_utilTryCatch);
var _utilErrorObject = require('../util/errorObject');
var _utilBindCallback = require('../util/bindCallback');
var _utilBindCallback2 = _interopRequireDefault(_utilBindCallback);
/**
* Similar to the well known `Array.prototype.map` function, this operator
* applies a projection to each value and emits that projection in the returned observable
*
* @param {Function} project the function to create projection
* @param {any} [thisArg] an optional argument to define what `this` is in the project function
* @returns {Observable} a observable of projected values
*/
function map(project, thisArg) {
return this.lift(new MapOperator(project, thisArg));
}
var MapOperator = (function () {
function MapOperator(project, thisArg) {
_classCallCheck(this, MapOperator);
this.project = _utilBindCallback2['default'](project, thisArg, 2);
}
MapOperator.prototype.call = function call(subscriber) {
return new MapSubscriber(subscriber, this.project);
};
return MapOperator;
})();
var MapSubscriber = (function (_Subscriber) {
_inherits(MapSubscriber, _Subscriber);
function MapSubscriber(destination, project) {
_classCallCheck(this, MapSubscriber);
_Subscriber.call(this, destination);
this.count = 0;
this.project = project;
}
MapSubscriber.prototype._next = function _next(x) {
var result = _utilTryCatch2['default'](this.project)(x, this.count++);
if (result === _utilErrorObject.errorObject) {
this.error(_utilErrorObject.errorObject.e);
} else {
this.destination.next(result);
}
};
return MapSubscriber;
})(_Subscriber3['default']);
module.exports = exports['default']; |