[heap] Introduce HeapVisitor interface.

src/heap/scavenger.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/heap/scavenger.h"
 
 #include "src/contexts.h"
 #include "src/heap/heap-inl.h"
 #include "src/heap/incremental-marking.h"
 #include "src/heap/objects-visiting-inl.h"
@@ skipping 18 matching lines @@
 class ScavengingVisitor : public StaticVisitorBase {
  public:
   static void Initialize() {
     table_.Register(kVisitSeqOneByteString, &EvacuateSeqOneByteString);
     table_.Register(kVisitSeqTwoByteString, &EvacuateSeqTwoByteString);
     table_.Register(kVisitShortcutCandidate, &EvacuateShortcutCandidate);
     table_.Register(kVisitThinString, &EvacuateThinString);
     table_.Register(kVisitByteArray, &EvacuateByteArray);
     table_.Register(kVisitFixedArray, &EvacuateFixedArray);
     table_.Register(kVisitFixedDoubleArray, &EvacuateFixedDoubleArray);
-    table_.Register(kVisitFixedTypedArray, &EvacuateFixedTypedArray);
+    table_.Register(kVisitFixedTypedArrayBase, &EvacuateFixedTypedArray);
     table_.Register(kVisitFixedFloat64Array, &EvacuateFixedFloat64Array);
     table_.Register(kVisitJSArrayBuffer,
                     &ObjectEvacuationStrategy<POINTER_OBJECT>::Visit);
 
     table_.Register(
         kVisitNativeContext,
         &ObjectEvacuationStrategy<POINTER_OBJECT>::template VisitSpecialized<
             Context::kSize>);
 
     table_.Register(
@@ skipping 389 matching lines @@
           ScavengingVisitor<TRANSFER_MARKS,
                             LOGGING_AND_PROFILING_ENABLED>::GetTable());
     }
 
     if (heap()->incremental_marking()->IsCompacting()) {
       // When compacting forbid short-circuiting of cons-strings.
       // Scavenging code relies on the fact that new space object
       // can't be evacuated into evacuation candidate but
       // short-circuiting violates this assumption.
       scavenging_visitors_table_.Register(
-          StaticVisitorBase::kVisitShortcutCandidate,
-          scavenging_visitors_table_.GetVisitorById(
-              StaticVisitorBase::kVisitConsString));
+          kVisitShortcutCandidate,
+          scavenging_visitors_table_.GetVisitorById(kVisitConsString));
       scavenging_visitors_table_.Register(
-          StaticVisitorBase::kVisitThinString,
+          kVisitThinString,
           &ScavengingVisitor<TRANSFER_MARKS, LOGGING_AND_PROFILING_DISABLED>::
               EvacuateThinStringNoShortcut);
     }
   }
 }
 
 
 Isolate* Scavenger::isolate() { return heap()->isolate(); }
 
 void RootScavengeVisitor::VisitRootPointer(Root root, Object** p) {
   ScavengePointer(p);
 }
 
 void RootScavengeVisitor::VisitRootPointers(Root root, Object** start,
                                             Object** end) {
   // Copy all HeapObject pointers in [start, end)
   for (Object** p = start; p < end; p++) ScavengePointer(p);
 }
 
 void RootScavengeVisitor::ScavengePointer(Object** p) {
   Object* object = *p;
   if (!heap_->InNewSpace(object)) return;
 
   Scavenger::ScavengeObject(reinterpret_cast<HeapObject**>(p),
                             reinterpret_cast<HeapObject*>(object));
 }
 
 }  // namespace internal
 }  // namespace v8