# HG changeset patch
# User cin
# Date 2015-02-12 23:08:01
# Node ID 656815cb7147f8f912f6cf6debc4f7d1fd0420c7
# Parent  04d4c92d0f28562655eb67672d696354dc284d3e

Fixed chaining of promises with 'Then' method

diff --git a/Implab/PromiseT.cs b/Implab/PromiseT.cs
--- a/Implab/PromiseT.cs
+++ b/Implab/PromiseT.cs
@@ -349,18 +349,24 @@ namespace Implab {
 
         public IPromise<T2> Then<T2>(Func<T, T2> mapper, Func<Exception, T2> error, Func<T2> cancel) {
             var promise = new Promise<T2>();
+            if (mapper != null)
+                promise.On(Cancel, PromiseEventType.Cancelled);
             AddHandler(new RemapDescriptor<T2>(mapper, error, cancel, promise));
             return promise;
         }
 
         public IPromise<T2> Then<T2>(Func<T, T2> mapper, Func<Exception, T2> error) {
             var promise = new Promise<T2>();
+            if (mapper != null)
+                promise.On(Cancel, PromiseEventType.Cancelled);
             AddHandler(new RemapDescriptor<T2>(mapper, error, null, promise));
             return promise;
         }
 
         public IPromise<T2> Then<T2>(Func<T, T2> mapper) {
             var promise = new Promise<T2>();
+            if (mapper != null)
+                promise.On(Cancel, PromiseEventType.Cancelled);
             AddHandler(new RemapDescriptor<T2>(mapper, null, null, promise));
             return promise;
         }