Fixed void async each.

2 files changed, 16 insertions, 2 deletions

diff --git a/async/src/async.h b/async/src/async.h
index a72d058..62fb463 100644
--- a/async/src/async.h
+++ b/async/src/async.h
@@ -193,7 +193,7 @@ public:
     void run(const ExecutionPtr &execution);
 private:
     EachTask<Out, In> mFunc;
-    QVector<Async::FutureWatcher<PrevOut>*> mFutureWatchers;
+    QVector<Async::FutureWatcher<Out>*> mFutureWatchers;
 };
 
 template<typename Out, typename In>
@@ -729,7 +729,7 @@ void EachExecutor<PrevOut, Out, In>::run(const ExecutionPtr &execution)
                              const int index = mFutureWatchers.indexOf(fw);
                              assert(index > -1);
                              mFutureWatchers.removeAt(index);
-                             out->setValue(out->value() + future.value());
+                             Async::detail::aggregateFutureValue<Out>(fw->future(), *out);
                              if (mFutureWatchers.isEmpty()) {
                                  out->setFinished();
                              }
diff --git a/async/src/async_impl.h b/async/src/async_impl.h
index eccbc9b..8c74193 100644
--- a/async/src/async_impl.h
+++ b/async/src/async_impl.h
@@ -60,6 +60,20 @@ copyFutureValue(const Async::Future<T> &in, Async::Future<T> &out)
     // noop
 }
 
+template<typename T>
+inline typename std::enable_if<!std::is_void<T>::value, void>::type
+aggregateFutureValue(const Async::Future<T> &in, Async::Future<T> &out)
+{
+    out.setValue(out.value() + in.value());
+}
+
+template<typename T>
+inline typename std::enable_if<std::is_void<T>::value, void>::type
+aggregateFutureValue(const Async::Future<T> &in, Async::Future<T> &out)
+{
+    // noop
+}
+
 } // namespace Detail
 
 } // namespace Async