The dart version of typeddata library has changed to be compatible with the dart2js implementation

runtime/vm/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_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include <limits>
 #include "include/dart_api.h"
 #include "platform/assert.h"
@@ skipping 4326 matching lines @@
     StorePointer(FieldAddrAtOffset(offset), value.raw());
   }
   bool IsValidFieldOffset(intptr_t offset) const;
 
   static intptr_t NextFieldOffset() {
     return sizeof(RawInstance);
   }
 
   // TODO(iposva): Determine if this gets in the way of Smi.
   HEAP_OBJECT_IMPLEMENTATION(Instance, Object);
+  friend class ByteBuffer;
   friend class Class;
   friend class Closure;
   friend class DeferredObject;
   friend class SnapshotWriter;
   friend class StubCode;
   friend class TypedDataView;
 };
 
 
 class LibraryPrefix : public Instance {
@@ skipping 2356 matching lines @@
 
  private:
   enum {
     kDataOffset = 1,
     kOffsetInBytesOffset = 2,
     kLengthOffset = 3,
   };
 };
 
 
+class ByteBuffer : public AllStatic {
+ public:
+  static RawInstance* Data(const Instance& view_obj) {
+    ASSERT(!view_obj.IsNull());
+    return *reinterpret_cast<RawInstance**>(view_obj.raw_ptr() + kDataOffset);
+  }
+
+  static intptr_t NumberOfFields() {
+    return kDataOffset;
+  }
+
+  static intptr_t data_offset() {
+    return kWordSize * kDataOffset;
+  }
+
+ private:
+  enum {
+    kDataOffset = 1,
+  };
+};
+
+
 class Closure : public AllStatic {
  public:
   static RawFunction* function(const Instance& closure) {
     return *FunctionAddr(closure);
   }
   static intptr_t function_offset() {
     return static_cast<intptr_t>(kFunctionOffset * kWordSize);
   }
 
   static RawContext* context(const Instance& closure) {
@@ skipping 484 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_