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      1 //===--- ObjectBuffer.h - Utility class to wrap object memory ---*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This file declares a wrapper class to hold the memory into which an
     11 // object will be generated.
     12 //
     13 //===----------------------------------------------------------------------===//
     14 
     15 #ifndef LLVM_EXECUTIONENGINE_OBJECTBUFFER_H
     16 #define LLVM_EXECUTIONENGINE_OBJECTBUFFER_H
     17 
     18 #include "llvm/ADT/SmallVector.h"
     19 #include "llvm/Support/MemoryBuffer.h"
     20 #include "llvm/Support/raw_ostream.h"
     21 
     22 namespace llvm {
     23 
     24 class ObjectMemoryBuffer : public MemoryBuffer {
     25 public:
     26   template <unsigned N>
     27   ObjectMemoryBuffer(SmallVector<char, N> SV)
     28     : SV(SV), BufferName("<in-memory object>") {
     29     init(this->SV.begin(), this->SV.end(), false);
     30   }
     31 
     32   template <unsigned N>
     33   ObjectMemoryBuffer(SmallVector<char, N> SV, StringRef Name)
     34     : SV(SV), BufferName(Name) {
     35     init(this->SV.begin(), this->SV.end(), false);
     36   }
     37   const char* getBufferIdentifier() const override { return BufferName.c_str(); }
     38 
     39   BufferKind getBufferKind() const override { return MemoryBuffer_Malloc; }
     40 
     41 private:
     42   SmallVector<char, 4096> SV;
     43   std::string BufferName;
     44 };
     45 
     46 } // namespace llvm
     47 
     48 #endif
     49