Add a host parameter to ObjectVisitor methods.

src/objects.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/objects.h"
 
 #include <cmath>
 #include <iomanip>
 #include <memory>
 #include <sstream>
@@ skipping 13852 matching lines @@
   int entry = SearchOptimizedCodeMapEntry(native_context);
   if (entry != kNotFound) {
     FixedArray* code_map = optimized_code_map();
     DCHECK_LE(entry + kEntryLength, code_map->length());
     WeakCell* cell = WeakCell::cast(code_map->get(entry + kCachedCodeOffset));
     result = cell->cleared() ? nullptr : Code::cast(cell->value());
   }
   return result;
 }
 
-
-void ObjectVisitor::VisitCodeTarget(RelocInfo* rinfo) {
+void ObjectVisitor::VisitCodeTarget(Code* host, RelocInfo* rinfo) {
   DCHECK(RelocInfo::IsCodeTarget(rinfo->rmode()));
   Object* old_pointer = Code::GetCodeFromTargetAddress(rinfo->target_address());
   Object* new_pointer = old_pointer;
-  VisitPointer(&new_pointer);
+  VisitPointer(host, &new_pointer);
   DCHECK_EQ(old_pointer, new_pointer);
 }
 
-
-void ObjectVisitor::VisitCodeAgeSequence(RelocInfo* rinfo) {
+void ObjectVisitor::VisitCodeAgeSequence(Code* host, RelocInfo* rinfo) {
   DCHECK(RelocInfo::IsCodeAgeSequence(rinfo->rmode()));
   Object* old_pointer = rinfo->code_age_stub();
   Object* new_pointer = old_pointer;
   if (old_pointer != nullptr) {
-    VisitPointer(&new_pointer);
+    VisitPointer(host, &new_pointer);
     DCHECK_EQ(old_pointer, new_pointer);
   }
 }
 
-
-void ObjectVisitor::VisitCodeEntry(Address entry_address) {
+void ObjectVisitor::VisitCodeEntry(JSFunction* host, Address entry_address) {
   Object* old_pointer = Code::GetObjectFromEntryAddress(entry_address);
   Object* new_pointer = old_pointer;
-  VisitPointer(&new_pointer);
+  VisitPointer(host, &new_pointer);
   DCHECK_EQ(old_pointer, new_pointer);
 }
 
-
-void ObjectVisitor::VisitCell(RelocInfo* rinfo) {
+void ObjectVisitor::VisitCell(Code* host, RelocInfo* rinfo) {
   DCHECK(rinfo->rmode() == RelocInfo::CELL);
   Object* old_pointer = rinfo->target_cell();
   Object* new_pointer = old_pointer;
-  VisitPointer(&new_pointer);
+  VisitPointer(host, &new_pointer);
   DCHECK_EQ(old_pointer, new_pointer);
 }
 
-
-void ObjectVisitor::VisitDebugTarget(RelocInfo* rinfo) {
+void ObjectVisitor::VisitDebugTarget(Code* host, RelocInfo* rinfo) {
   DCHECK(RelocInfo::IsDebugBreakSlot(rinfo->rmode()) &&
          rinfo->IsPatchedDebugBreakSlotSequence());
   Object* old_pointer =
       Code::GetCodeFromTargetAddress(rinfo->debug_call_address());
   Object* new_pointer = old_pointer;
-  VisitPointer(&new_pointer);
+  VisitPointer(host, &new_pointer);
   DCHECK_EQ(old_pointer, new_pointer);
 }
 
-
-void ObjectVisitor::VisitEmbeddedPointer(RelocInfo* rinfo) {
+void ObjectVisitor::VisitEmbeddedPointer(Code* host, RelocInfo* rinfo) {
   DCHECK(rinfo->rmode() == RelocInfo::EMBEDDED_OBJECT);
   Object* old_pointer = rinfo->target_object();
   Object* new_pointer = old_pointer;
-  VisitPointer(&new_pointer);
+  VisitPointer(host, &new_pointer);
   DCHECK_EQ(old_pointer, new_pointer);
 }
 
 
-void ObjectVisitor::VisitExternalReference(RelocInfo* rinfo) {
-  Address old_reference = rinfo->target_external_reference();
-  Address new_reference = old_reference;
-  VisitExternalReference(&new_reference);
-  DCHECK_EQ(old_reference, new_reference);
-}
-
-
 void Code::InvalidateRelocation() {
   InvalidateEmbeddedObjects();
   set_relocation_info(GetHeap()->empty_byte_array());
 }
 
 
 void Code::InvalidateEmbeddedObjects() {
   HeapObject* undefined = GetHeap()->undefined_value();
   Cell* undefined_cell = GetHeap()->undefined_cell();
   int mode_mask = RelocInfo::ModeMask(RelocInfo::EMBEDDED_OBJECT) |
@@ skipping 6486 matching lines @@
       // depend on this.
       return DICTIONARY_ELEMENTS;
     }
     DCHECK_LE(kind, LAST_ELEMENTS_KIND);
     return kind;
   }
 }
 
 }  // namespace internal
 }  // namespace v8