Oilpan: Allowing hashing of RawPtr.

Source/wtf/HashFunctions.h

 /*
  * Copyright (C) 2005, 2006, 2008 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 125 matching lines @@
         static const bool safeToCompareToEmptyOrDeleted = true;
     };
     template<typename P> struct PtrHash<RefPtr<P> > : PtrHash<P*> {
         using PtrHash<P*>::hash;
         static unsigned hash(const RefPtr<P>& key) { return hash(key.get()); }
         using PtrHash<P*>::equal;
         static bool equal(const RefPtr<P>& a, const RefPtr<P>& b) { return a == b; }
         static bool equal(P* a, const RefPtr<P>& b) { return a == b; }
         static bool equal(const RefPtr<P>& a, P* b) { return a == b; }
     };
+    template<typename P> struct PtrHash<RawPtr<P> > : PtrHash<P*> {
+        using PtrHash<P*>::hash;
+        static unsigned hash(const RawPtr<P>& key) { return hash(key.get()); }
+        using PtrHash<P*>::equal;
+        static bool equal(const RawPtr<P>& a, const RawPtr<P>& b) { return a == b; }
+        static bool equal(P* a, const RawPtr<P>& b) { return a == b; }
+        static bool equal(const RawPtr<P>& a, P* b) { return a == b; }
+    };
 
     // default hash function for each type
 
     template<typename T> struct DefaultHash;
 
     template<typename T, typename U> struct PairHash {
         static unsigned hash(const std::pair<T, U>& p)
         {
             return pairIntHash(DefaultHash<T>::Hash::hash(p.first), DefaultHash<U>::Hash::hash(p.second));
         }
@@ skipping 26 matching lines @@
     template<> struct DefaultHash<wchar_t> { typedef IntHash<wchar_t> Hash; };
 #endif
 
     template<> struct DefaultHash<float> { typedef FloatHash<float> Hash; };
     template<> struct DefaultHash<double> { typedef FloatHash<double> Hash; };
 
     // make PtrHash the default hash function for pointer types that don't specialize
 
     template<typename P> struct DefaultHash<P*> { typedef PtrHash<P*> Hash; };
     template<typename P> struct DefaultHash<RefPtr<P> > { typedef PtrHash<RefPtr<P> > Hash; };
+    template<typename P> struct DefaultHash<RawPtr<P> > { typedef PtrHash<RawPtr<P> > Hash; };
 
     // make IntPairHash the default hash function for pairs of (at most) 32-bit integers.
 
     template<> struct DefaultHash<std::pair<short, short> > { typedef IntPairHash<short, short> Hash; };
     template<> struct DefaultHash<std::pair<short, unsigned short> > { typedef IntPairHash<short, unsigned short> Hash; };
     template<> struct DefaultHash<std::pair<short, int> > { typedef IntPairHash<short, int> Hash; };
     template<> struct DefaultHash<std::pair<short, unsigned> > { typedef IntPairHash<short, unsigned> Hash; };
     template<> struct DefaultHash<std::pair<unsigned short, short> > { typedef IntPairHash<unsigned short, short> Hash; };
     template<> struct DefaultHash<std::pair<unsigned short, unsigned short> > { typedef IntPairHash<unsigned short, unsigned short> Hash; };
     template<> struct DefaultHash<std::pair<unsigned short, int> > { typedef IntPairHash<unsigned short, int> Hash; };
@@ skipping 11 matching lines @@
 
     template<typename T, typename U> struct DefaultHash<std::pair<T, U> > { typedef PairHash<T, U> Hash; };
 
 } // namespace WTF
 
 using WTF::DefaultHash;
 using WTF::IntHash;
 using WTF::PtrHash;
 
 #endif // WTF_HashFunctions_h