Track live instance and allocation counts for classes

runtime/vm/raw_object.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_RAW_OBJECT_H_
 #define VM_RAW_OBJECT_H_
 
 #include "platform/assert.h"
 #include "vm/globals.h"
 #include "vm/token.h"
@@ skipping 425 matching lines @@
     return ClassIdTag::decode(tags);
   }
 
   friend class Api;
   friend class Array;
   friend class FreeListElement;
   friend class GCMarker;
   friend class ExternalTypedData;
   friend class Heap;
   friend class HeapProfiler;
+  friend class ClassStatsVisitor;
   friend class HeapProfilerRootVisitor;
   friend class MarkingVisitor;
   friend class Object;
   friend class ObjectHistogram;
   friend class RawExternalTypedData;
   friend class RawInstructions;
   friend class RawInstance;
   friend class RawTypedData;
   friend class Scavenger;
+  friend class ScavengerVisitor;
   friend class SnapshotReader;
   friend class SnapshotWriter;
   friend class String;
   friend class TypedData;
   friend class TypedDataView;
 
   DISALLOW_ALLOCATION();
   DISALLOW_IMPLICIT_CONSTRUCTORS(RawObject);
 };
 
 
 class RawClass : public RawObject {
  public:
   enum ClassFinalizedState {
     kAllocated = 0,  // Initial state.
     kPreFinalized,  // VM classes: size precomputed, but no checks done.
     kFinalized,  // Class parsed, finalized and ready for use.
   };
 
  private:
   RAW_HEAP_OBJECT_IMPLEMENTATION(Class);
 
   RawObject** from() { return reinterpret_cast<RawObject**>(&ptr()->name_); }
   RawString* name_;
+  RawString* user_name_;
   RawArray* functions_;
   RawArray* fields_;
   RawArray* offset_in_words_to_field_;
   RawGrowableObjectArray* closure_functions_;  // Local functions and literals.
   RawArray* interfaces_;  // Array of AbstractType.
   RawGrowableObjectArray* direct_subclasses_;  // Array of Class.
   RawScript* script_;
   RawLibrary* library_;
   RawTypeArguments* type_parameters_;  // Array of TypeParameter.
   RawAbstractType* super_type_;
@@ skipping 1253 matching lines @@
   // Make sure this is updated when new TypedData types are added.
   ASSERT(kTypedDataInt8ArrayViewCid == kTypedDataInt8ArrayCid + 13);
   ASSERT(kExternalTypedDataInt8ArrayCid == kTypedDataInt8ArrayViewCid + 14);
   ASSERT(kNullCid == kExternalTypedDataInt8ArrayCid + 13);
   return (kNullCid - kTypedDataInt8ArrayCid);
 }
 
 }  // namespace dart
 
 #endif  // VM_RAW_OBJECT_H_