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//===-- llvm/Assembly/CachedWriter.h - Printer Accellerator -----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines a 'CachedWriter' class that is used to accelerate printing
// chunks of LLVM. This is used when a module is not being changed, but random
// parts of it need to be printed. This can greatly speed up printing of LLVM
// output.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_ASSEMBLY_CACHEDWRITER_H
#define LLVM_ASSEMBLY_CACHEDWRITER_H
#include "llvm/Value.h"
#include <iostream>
namespace llvm {
class Module;
class PointerType;
class AssemblyWriter; // Internal private class
class SlotMachine;
class CachedWriter {
AssemblyWriter *AW;
SlotMachine *SC;
bool SymbolicTypes;
std::ostream &Out;
public:
enum TypeWriter {
SymTypeOn,
SymTypeOff
};
CachedWriter(std::ostream &O = std::cout)
: AW(0), SC(0), SymbolicTypes(false), Out(O) { }
CachedWriter(const Module *M, std::ostream &O = std::cout)
: AW(0), SC(0), SymbolicTypes(false), Out(O) {
setModule(M);
}
~CachedWriter();
// setModule - Invalidate internal state, use the new module instead.
void setModule(const Module *M);
CachedWriter &operator<<(const Value &V);
CachedWriter &operator<<(const Type &X);
inline CachedWriter &operator<<(std::ostream &(&Manip)(std::ostream &)) {
Out << Manip; return *this;
}
inline CachedWriter& operator<<(const char *X) {
Out << X;
return *this;
}
inline CachedWriter &operator<<(enum TypeWriter tw) {
SymbolicTypes = (tw == SymTypeOn);
return *this;
}
};
} // End llvm namespace
#endif
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