--- /dev/null
+/** PURE_IMPORTS_START _Observable,_util_isArray,_util_isFunction,_operators_map PURE_IMPORTS_END */
+import { Observable } from '../Observable';
+import { isArray } from '../util/isArray';
+import { isFunction } from '../util/isFunction';
+import { map } from '../operators/map';
+export function fromEventPattern(addHandler, removeHandler, resultSelector) {
+ if (resultSelector) {
+ return fromEventPattern(addHandler, removeHandler).pipe(map(function (args) { return isArray(args) ? resultSelector.apply(void 0, args) : resultSelector(args); }));
+ }
+ return new Observable(function (subscriber) {
+ var handler = function () {
+ var e = [];
+ for (var _i = 0; _i < arguments.length; _i++) {
+ e[_i] = arguments[_i];
+ }
+ return subscriber.next(e.length === 1 ? e[0] : e);
+ };
+ var retValue;
+ try {
+ retValue = addHandler(handler);
+ }
+ catch (err) {
+ subscriber.error(err);
+ return undefined;
+ }
+ if (!isFunction(removeHandler)) {
+ return undefined;
+ }
+ return function () { return removeHandler(handler, retValue); };
+ });
+}
+//# sourceMappingURL=fromEventPattern.js.map