# Code coverage report for RxJS/dist/cjs/observables/FromEventPatternObservable.js

## Statements: 93.62% (44 / 47) Branches: 72.73% (16 / 22) Functions: 90% (9 / 10) Lines: 97.44% (38 / 39) Ignored: none

All files » RxJS/dist/cjs/observables/ » FromEventPatternObservable.js

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    1'use strict';

    exports.__esModule = true;

    function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

    function _classCallCheck(instance, Constructor) { Iif (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }

    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; }

    var _Observable2 = require('../Observable');

    var _Observable3 = _interopRequireDefault(_Observable2);

    var _Subscription = require('../Subscription');

    var _Subscription2 = _interopRequireDefault(_Subscription);

    var _utilTryCatch = require('../util/tryCatch');

    var _utilTryCatch2 = _interopRequireDefault(_utilTryCatch);

    var _utilErrorObject = require('../util/errorObject');

    var FromEventPatternObservable = (function (_Observable) {
        _inherits(FromEventPatternObservable, _Observable);

        function FromEventPatternObservable(addHandler, removeHandler, selector) {
            _classCallCheck(this, FromEventPatternObservable);

            _Observable.call(this);
            this.addHandler = addHandler;
            this.removeHandler = removeHandler;
            this.selector = selector;
        }

        FromEventPatternObservable.create = function create(addHandler, removeHandler, selector) {
            return new FromEventPatternObservable(addHandler, removeHandler, selector);
        };

        FromEventPatternObservable.prototype._subscribe = function _subscribe(subscriber) {
            var addHandler = this.addHandler;
            var removeHandler = this.removeHandler;
            var selector = this.selector;
            var handler = selector ? function (e) {
                var result = _utilTryCatch2['default'](selector).apply(null, arguments);
                if (result === _utilErrorObject.errorObject) {
                    subscriber.error(result.e);
                } else {
                    subscriber.next(result);
                }
            } : function (e) {
                subscriber.next(e);
            };
            var result = _utilTryCatch2['default'](addHandler)(handler);
            if (result === _utilErrorObject.errorObject) {
                subscriber.error(result.e);
            }
            subscriber.add(new _Subscription2['default'](function () {
                //TODO: determine whether or not to forward to error handler
                removeHandler(handler);
            }));
        };

        return FromEventPatternObservable;
    })(_Observable3['default']);

    exports['default'] = FromEventPatternObservable;
    module.exports = exports['default'];