Intrinsify ExternalUint8Array.[].

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 1346 matching lines @@
     if (callback_ != NULL) (*callback_)(peer_);
   }
 
   T* data() {
     return data_;
   }
   void* peer() {
     return peer_;
   }
 
+  static intptr_t data_offset() {
+    return 0;

[Florian Schneider, 2012/11/21 15:15:17]

I think 

OFFSET_OF(ExternalByteArrayData<T>, data_)

should work.

[Mads Ager (google), 2012/11/21 15:31:34]

Done.

+  }
+
  private:
   T* data_;
   void* peer_;
   Dart_PeerFinalizer callback_;
 };
 
 
 class RawExternalInt8Array : public RawByteArray {
   RAW_HEAP_OBJECT_IMPLEMENTATION(ExternalInt8Array);
 
@@ skipping 257 matching lines @@
          kExternalUint64ArrayCid == kExternalInt8ArrayCid + 7 &&
          kExternalFloat32ArrayCid == kExternalInt8ArrayCid + 8 &&
          kExternalFloat64ArrayCid == kExternalInt8ArrayCid + 9 &&
          kStacktraceCid == kExternalInt8ArrayCid + 10);
   return (index >= kExternalInt8ArrayCid && index <= kExternalFloat64ArrayCid);
 }
 
 }  // namespace dart
 
 #endif  // VM_RAW_OBJECT_H_