ART: IWYU handle_scope

Move wrappers to their own header. Forward-declare handles.

Bug: 119869270
Test: m
Change-Id: I9fba4df9b589cec07c7f687791ddbed81d188410

1 files changed, 10 insertions, 0 deletions

diff --git a/runtime/handle_scope-inl.h b/runtime/handle_scope-inl.h
index f61c700a36..765ed7d53b 100644
--- a/runtime/handle_scope-inl.h
+++ b/runtime/handle_scope-inl.h
@@ -21,6 +21,7 @@
 
 #include "base/mutex.h"
 #include "handle.h"
+#include "handle_wrapper.h"
 #include "obj_ptr-inl.h"
 #include "thread-current-inl.h"
 #include "verify_object.h"
@@ -106,6 +107,15 @@ inline bool HandleScope::Contains(StackReference<mirror::Object>* handle_scope_e
       handle_scope_entry <= &GetReferences()[number_of_references_ - 1];
 }
 
+template <typename Visitor>
+inline void HandleScope::VisitRoots(Visitor& visitor) {
+  for (size_t i = 0, count = NumberOfReferences(); i < count; ++i) {
+    // GetReference returns a pointer to the stack reference within the handle scope. If this
+    // needs to be updated, it will be done by the root visitor.
+    visitor.VisitRootIfNonNull(GetHandle(i).GetReference());
+  }
+}
+
 template<size_t kNumReferences> template<class T>
 inline MutableHandle<T> FixedSizeHandleScope<kNumReferences>::NewHandle(T* object) {
   SetReference(pos_, object);