Revert "Revert "Basic structural redefinition support""

This reverts commit 5a2301d897294ff4ee6de71f459dc2566dc3fa1a.

Bug: 134162467

Reason for revert: Relanding as unclear if issue is due to topic.

Change-Id: Ib1d1cf2e9132e30c9649b760ae9ae2d8ceacf843

1 files changed, 12 insertions, 0 deletions

diff --git a/runtime/mirror/executable-inl.h b/runtime/mirror/executable-inl.h
index 6d4b46a31d..ce35d6ef20 100644
--- a/runtime/mirror/executable-inl.h
+++ b/runtime/mirror/executable-inl.h
@@ -20,6 +20,7 @@
 #include "executable.h"
 
 #include "object-inl.h"
+#include "verify_object.h"
 
 namespace art {
 namespace mirror {
@@ -36,6 +37,17 @@ inline ObjPtr<mirror::Class> Executable::GetDeclaringClass() {
   return GetFieldObject<mirror::Class>(DeclaringClassOffset());
 }
 
+template<typename Visitor, VerifyObjectFlags kVerifiyFlags>
+inline void Executable::VisitTarget(Visitor&& v) {
+  ArtMethod* orig = GetArtMethod<kVerifiyFlags>();
+  ArtMethod* new_target = v(orig);
+  if (orig != new_target) {
+    SetArtMethod(new_target);
+    SetDexMethodIndex(new_target->GetDexMethodIndex());
+    SetDeclaringClass(new_target->GetDeclaringClass());
+  }
+}
+
 }  // namespace mirror
 }  // namespace art