[llvm-commits] [llvm] r43396 - in /llvm/trunk/include/llvm/Bitcode: Deserialize.h Serialization.h

[Ted Kremenek]

Author: kremenek
Date: Fri Oct 26 15:23:27 2007
New Revision: 43396

URL: http://llvm.org/viewvc/llvm-project?rev=43396&view=rev
Log:
Added default implementation of SerializeTrait<> that dispatches to
calling member functions of the target type to perform type-specific
serialization.
                         
Added version of ReadPtr that allows passing references to uintptr_t
(useful for smart pointers).

Modified:
    llvm/trunk/include/llvm/Bitcode/Deserialize.h
    llvm/trunk/include/llvm/Bitcode/Serialization.h

Modified: llvm/trunk/include/llvm/Bitcode/Deserialize.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Bitcode/Deserialize.h?rev=43396&r1=43395&r2=43396&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Bitcode/Deserialize.h (original)
+++ llvm/trunk/include/llvm/Bitcode/Deserialize.h Fri Oct 26 15:23:27 2007
@@ -99,7 +99,9 @@
     return x;
   }
   
-  void ReadPtr(void*& PtrRef);  
+  void ReadPtr(void*& PtrRef);
+  void ReadPtr(uintptr_t& PtrRef) { ReadPtr(reinterpret_cast<void*&>(PtrRef)); }
+  
   void RegisterPtr(unsigned PtrId, void* Ptr);
 
 

Modified: llvm/trunk/include/llvm/Bitcode/Serialization.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Bitcode/Serialization.h?rev=43396&r1=43395&r2=43396&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Bitcode/Serialization.h (original)
+++ llvm/trunk/include/llvm/Bitcode/Serialization.h Fri Oct 26 15:23:27 2007
@@ -19,6 +19,28 @@
 
 namespace llvm {
   
+/// SerializeTrait - SerializeTrait bridges between the Serializer/Deserializer
+///  and the functions that serialize objects of specific types.  The default
+///  behavior is to call static methods of the class for the object being
+///  serialized, but this behavior can be changed by specializing this
+///  template.  Classes only need to implement the methods corresponding
+///  to the serialization scheme they want to support.  For example, "Read"
+///  and "ReadVal" correspond to different deserialization schemes which make
+///  sense for different types; a class need only implement one of them.
+///  Serialization and deserialization of pointers are specially handled
+///  by the Serializer and Deserializer using the EmitOwnedPtr, etc. methods.
+///  To serialize the actual object referred to by a pointer, the class
+///  of the object either must implement the methods called by the default
+///  behavior of SerializeTrait, or specialize SerializeTrait.  This latter
+///  is useful when one cannot add methods to an existing class (for example).
+template <typename T>
+struct SerializeTrait {
+  static inline void Emit(Serializer& S, const T& X) { X.Emit(S); }
+  static inline void Read(Deserializer& D, T& X) { X.Read(D); }
+  static inline T ReadVal(Deserializer& D) { T::ReadVal(D); }
+  static inline T* Materialize(Deserializer& D) { T::Materialize(D); }
+};
+
 #define SERIALIZE_INT_TRAIT(TYPE)\
 template <> struct SerializeTrait<TYPE> {\
   static void Emit(Serializer& S, TYPE X);\