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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
69 lines
2.6 KiB
C++
69 lines
2.6 KiB
C++
//==- Serialization.h - Generic Object Serialization to Bitcode ---*- C++ -*-=//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines traits for primitive types used for both object
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// serialization and deserialization.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_BITCODE_SERIALIZE
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#define LLVM_BITCODE_SERIALIZE
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#include "llvm/Bitcode/SerializationFwd.h"
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namespace llvm {
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/// SerializeTrait - SerializeTrait bridges between the Serializer/Deserializer
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/// and the functions that serialize objects of specific types. The default
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/// behavior is to call static methods of the class for the object being
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/// serialized, but this behavior can be changed by specializing this
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/// template. Classes only need to implement the methods corresponding
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/// to the serialization scheme they want to support. For example, "Read"
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/// and "ReadVal" correspond to different deserialization schemes which make
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/// sense for different types; a class need only implement one of them.
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/// Serialization and deserialization of pointers are specially handled
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/// by the Serializer and Deserializer using the EmitOwnedPtr, etc. methods.
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/// To serialize the actual object referred to by a pointer, the class
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/// of the object either must implement the methods called by the default
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/// behavior of SerializeTrait, or specialize SerializeTrait. This latter
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/// is useful when one cannot add methods to an existing class (for example).
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template <typename T>
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struct SerializeTrait {
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static inline void Emit(Serializer& S, const T& X) { X.Emit(S); }
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static inline void Read(Deserializer& D, T& X) { X.Read(D); }
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static inline T* Create(Deserializer& D) { return T::Create(D); }
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template <typename Arg1>
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static inline T* Create(Deserializer& D, Arg1& arg1) {
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return T::Create(D, arg1);
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}
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};
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#define SERIALIZE_INT_TRAIT(TYPE)\
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template <> struct SerializeTrait<TYPE> {\
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static void Emit(Serializer& S, TYPE X);\
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static void Read(Deserializer& S, TYPE& X); };
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SERIALIZE_INT_TRAIT(bool)
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SERIALIZE_INT_TRAIT(unsigned char)
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SERIALIZE_INT_TRAIT(unsigned short)
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SERIALIZE_INT_TRAIT(unsigned int)
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SERIALIZE_INT_TRAIT(unsigned long)
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SERIALIZE_INT_TRAIT(signed char)
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SERIALIZE_INT_TRAIT(signed short)
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SERIALIZE_INT_TRAIT(signed int)
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SERIALIZE_INT_TRAIT(signed long)
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#undef SERIALIZE_INT_TRAIT
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} // end namespace llvm
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#endif
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