VM support for running Kernel binaries.

runtime/vm/hash_map.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_HASH_MAP_H_
 #define VM_HASH_MAP_H_
 
 #include "vm/growable_array.h"  // For Malloc, EmptyBase
 #include "vm/zone.h"
 
@@ skipping 346 matching lines @@
   typedef T Value;
   typedef intptr_t Key;
   typedef T Pair;
 
   static intptr_t KeyOf(Pair kv) { return kv.first(); }
   static T ValueOf(Pair kv) { return kv; }
   static inline intptr_t Hashcode(Key key) { return key; }
   static inline bool IsKeyEqual(Pair kv, Key key) { return kv.first() == key; }
 };
 
+
+template<typename K, typename V>
+class RawPointerKeyValueTrait {
+ public:
+  typedef K* Key;
+  typedef V Value;
+
+  struct Pair {
+    Key key;
+    Value value;
+    Pair() : key(NULL), value() {}
+    Pair(const Key key, const Value& value) : key(key), value(value) {}
+    Pair(const Pair& other) : key(other.key), value(other.value) {}
+  };
+
+  static Key KeyOf(Pair kv) { return kv.key; }
+  static Value ValueOf(Pair kv) { return kv.value; }
+  static intptr_t Hashcode(Key key) { return reinterpret_cast<intptr_t>(key); }
+  static bool IsKeyEqual(Pair kv, Key key) { return kv.key == key; }
+};
+
 }  // namespace dart
 
 #endif  // VM_HASH_MAP_H_