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Split Serialization.h into separate headers: Serialize.h and

Browse Source 
Deserialize.h Serialization.h now includes trait speciailizations for
unsigned long, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43307 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Ted Kremenek
2007-10-24 19:06:40 +00:00
parent be3e348c7c
commit 6e9b496643
5 changed files with 186 additions and 127 deletions
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118
include/llvm/Bitcode/Serialization.h
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@ -1,4 +1,4 @@
//=- Serialization.h - Generic Object Serialization to Bitcode ---*- C++ -*-=//
//==- Serialization.h - Generic Object Serialization to Bitcode ---*- C++ -*-=//
//
// The LLVM Compiler Infrastructure
//
@ -15,114 +15,26 @@
#ifndef LLVM_BITCODE_SERIALIZE
#define LLVM_BITCODE_SERIALIZE
#include "llvm/Bitcode/BitstreamWriter.h"
#include "llvm/Bitcode/BitstreamReader.h"
#include "llvm/ADT/SmallVector.h"
#include <vector>
namespace llvm {
class Serializer;
class Deserializer;
template <typename T> struct SerializeTrait;
class Serializer {
BitstreamWriter& Stream;
SmallVector<uint64_t,10> Record;
bool inBlock;
public:
Serializer(BitstreamWriter& stream, unsigned BlockID = 0);
~Serializer();
template <typename T>
inline void Emit(const T& X) { SerializeTrait<T>::Serialize(*this,X); }
void EmitInt(unsigned X, unsigned bits);
// FIXME: Substitute a better implementation which calculates the minimum
// number of bits needed to serialize the enum.
void EmitEnum(unsigned X, unsigned MinVal, unsigned MaxVal) { EmitInt(X,32); }
void EmitCString(const char* cstr);
#define SERIALIZE_INT_TRAIT(TYPE)\
template <> struct SerializeTrait<TYPE> {\
static void Emit(Serializer& S, TYPE X);\
static void Read(Deserializer& S, TYPE& X); };
void Flush() { if (inRecord()) EmitRecord(); }
private:
void EmitRecord();
inline bool inRecord() { return Record.size() > 0; }
};
class Deserializer {
BitstreamReader& Stream;
SmallVector<uint64_t,10> Record;
unsigned RecIdx;
public:
Deserializer(BitstreamReader& stream);
~Deserializer();
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(unsigned long long)
template <typename T>
inline T& Read(T& X) { SerializeTrait<T>::Deserialize(*this,X); return X; }
template <typename T>
inline T* Materialize() {
T* X = SerializeTrait<T>::Instantiate();
Read(*X);
return X;
}
uint64_t ReadInt(unsigned bits = 32);
bool ReadBool() { return ReadInt(1) ? true : false; }
// FIXME: Substitute a better implementation which calculates the minimum
// number of bits needed to serialize the enum.
template <typename EnumT>
EnumT ReadEnum(unsigned MinVal, unsigned MaxVal) {
return static_cast<EnumT>(ReadInt(32));
}
char* ReadCString(char* cstr = NULL, unsigned MaxLen=0, bool isNullTerm=true);
void ReadCString(std::vector<char>& buff, bool isNullTerm=false);
private:
void ReadRecord();
inline bool inRecord() {
if (Record.size() > 0) {
if (RecIdx >= Record.size()) {
RecIdx = 0;
Record.clear();
return false;
}
else return true;
}
else return false;
}
};
template <typename uintty, unsigned Bits>
struct SerializeIntTrait {
static inline void Serialize(Serializer& S, uintty X) {
S.EmitInt(X,Bits);
}
static inline void Deserialize(Deserializer& S, uintty& X) {
X = (uintty) S.ReadInt(Bits);
}
};
template <> struct SerializeTrait<bool>
: public SerializeIntTrait<bool,1> {};
template <> struct SerializeTrait<char>
: public SerializeIntTrait<char,8> {};
template <> struct SerializeTrait<short>
: public SerializeIntTrait<short,16> {};
template <> struct SerializeTrait<unsigned>
: public SerializeIntTrait<unsigned,32> {};
#undef SERIALIZE_INT_TRAIT
} // end namespace llvm
#endif