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

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

1 files changed, 15 insertions, 103 deletions

diff --git a/include/llvm/Bitcode/Serialization.h b/include/llvm/Bitcode/Serialization.h
index eeaac4a8a3..935452cc1b 100644
--- a/include/llvm/Bitcode/Serialization.h
+++ b/include/llvm/Bitcode/Serialization.h
@@ -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);
-
-  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();
-
-  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();
+#define SERIALIZE_INT_TRAIT(TYPE)\
+template <> struct SerializeTrait<TYPE> {\
+  static void Emit(Serializer& S, TYPE X);\
+  static void Read(Deserializer& S, TYPE& X); };
 
-  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> {};
+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 <> 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