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, 19 insertions, 0 deletions

diff --git a/runtime/mirror/executable.h b/runtime/mirror/executable.h
index a99c3ec461..8eca206d5a 100644
--- a/runtime/mirror/executable.h
+++ b/runtime/mirror/executable.h
@@ -41,6 +41,10 @@ class MANAGED Executable : public AccessibleObject {
     return reinterpret_cast64<ArtMethod*>(GetField64<kVerifyFlags>(ArtMethodOffset()));
   }
 
+  template <typename Visitor,
+            VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags>
+  inline void VisitTarget(Visitor&& v) REQUIRES(Locks::mutator_lock_);
+
   template <bool kTransactionActive = false,
             bool kCheckTransaction = true,
             VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags>
@@ -61,6 +65,21 @@ class MANAGED Executable : public AccessibleObject {
   uint32_t access_flags_;
   uint32_t dex_method_index_;
 
+  template<bool kTransactionActive = false>
+  void SetDeclaringClass(ObjPtr<mirror::Class> klass) REQUIRES_SHARED(Locks::mutator_lock_) {
+    SetFieldObject<kTransactionActive>(DeclaringClassOffset(), klass);
+  }
+
+  template<bool kTransactionActive = false>
+  void SetAccessFlags(uint32_t flags) REQUIRES_SHARED(Locks::mutator_lock_) {
+    SetField32<kTransactionActive>(AccessFlagsOffset(), flags);
+  }
+
+  template<bool kTransactionActive = false>
+  void SetDexMethodIndex(uint32_t idx) REQUIRES_SHARED(Locks::mutator_lock_) {
+    SetField32<kTransactionActive>(DexMethodIndexOffset(), idx);
+  }
+
   static MemberOffset DeclaringClassOffset() {
     return MemberOffset(OFFSETOF_MEMBER(Executable, declaring_class_));
   }