llvm-6502/include/llvm/Bitcode/Serialization.h
Ted Kremenek a150ffeada Add member template version of SerializeTrait<T>::Create that also accepts
an optional argument for us by T's Create method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49169 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03 16:44:37 +00:00

69 lines
2.6 KiB
C++

//==- Serialization.h - Generic Object Serialization to Bitcode ---*- C++ -*-=//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines traits for primitive types used for both object
// serialization and deserialization.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_BITCODE_SERIALIZE
#define LLVM_BITCODE_SERIALIZE
#include "llvm/Bitcode/SerializationFwd.h"
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* Create(Deserializer& D) { return T::Create(D); }
template <typename Arg1>
static inline T* Create(Deserializer& D, Arg1& arg1) {
return T::Create(D, arg1);
}
};
#define SERIALIZE_INT_TRAIT(TYPE)\
template <> struct SerializeTrait<TYPE> {\
static void Emit(Serializer& S, TYPE X);\
static void Read(Deserializer& S, TYPE& X); };
SERIALIZE_INT_TRAIT(bool)
SERIALIZE_INT_TRAIT(unsigned char)
SERIALIZE_INT_TRAIT(unsigned short)
SERIALIZE_INT_TRAIT(unsigned int)
SERIALIZE_INT_TRAIT(unsigned long)
SERIALIZE_INT_TRAIT(signed char)
SERIALIZE_INT_TRAIT(signed short)
SERIALIZE_INT_TRAIT(signed int)
SERIALIZE_INT_TRAIT(signed long)
#undef SERIALIZE_INT_TRAIT
} // end namespace llvm
#endif