commit 423d2a3dcbb260b020efb5da59f784c9f02accbf
author Mathieu Chartier <mathieuc@google.com> Thu Sep 12 17:33:56 2013 -0700
committer Mathieu Chartier <mathieuc@google.com> Fri Sep 13 10:30:24 2013 -0700
tree 79ed739e6072f8308c1cd880f9420a1c63539c95
parent b048dd2b662c19644361f4396a1e8d6213445ee8

Add support for changing roots through the root visitor callback.

Needed for copying collectors.

Change-Id: Icc4a342a57e0cfb79587edb02ef8c85e08808877

runtime/root_visitor.h

diff --git a/runtime/root_visitor.h b/runtime/root_visitor.h
index 3aa9b4b..a2d898b 100644
--- a/runtime/root_visitor.h
+++ b/runtime/root_visitor.h
@@ -23,7 +23,8 @@
 }  // namespace mirror
 class StackVisitor;
 
-typedef void (RootVisitor)(const mirror::Object* root, void* arg);
+typedef mirror::Object* (RootVisitor)(mirror::Object* root, void* arg)
+    __attribute__((warn_unused_result));
 typedef void (VerifyRootVisitor)(const mirror::Object* root, void* arg, size_t vreg,
                                  const StackVisitor* visitor);
 typedef bool (IsMarkedTester)(const mirror::Object* object, void* arg);