From bb8b9c611ccad31148e41a2698cb5fadb3363531 Mon Sep 17 00:00:00 2001
From: Adam Barth <abarth@clearzen>
Date: Tue, 21 Jul 2015 22:42:04 -0700
Subject: [PATCH] Fix type error found by dartanalyzer --strong

We were declaring that the function passed to setState should return a
Function. In reality, we want the function to return void (and everyone calls
it with a function that returns void).
---
 packages/flutter/lib/widgets/widget.dart | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/flutter/lib/widgets/widget.dart b/packages/flutter/lib/widgets/widget.dart
index 6f96239056c..cc9e3963583 100644
--- a/packages/flutter/lib/widgets/widget.dart
+++ b/packages/flutter/lib/widgets/widget.dart
@@ -585,7 +585,7 @@ abstract class StatefulComponent extends Component {
     return super.syncChild(node, oldNode, slot);
   }
 
-  void setState(Function fn()) {
+  void setState(void fn()) {
     assert(!_disqualifiedFromEverAppearingAgain);
     fn();
     scheduleBuild();