tools/llvm-objcopy/llvm-objcopy.h

   1 //===- llvm-objcopy.h -------------------------------------------*- 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 #ifndef LLVM_TOOLS_OBJCOPY_OBJCOPY_H
  11 #define LLVM_TOOLS_OBJCOPY_OBJCOPY_H
  12
  13 #include "llvm/ADT/Twine.h"
  14 #include "llvm/Support/Compiler.h"
  15 #include "llvm/Support/Error.h"
  16 #include "llvm/Support/raw_ostream.h"
  17 #include <string>
  18
  19 namespace llvm {
  20
  21 LLVM_ATTRIBUTE_NORETURN extern void error(Twine Message);
  22
  23 // This is taken from llvm-readobj.
  24 // [see here](llvm/tools/llvm-readobj/llvm-readobj.h:38)
  25 template <class T> T unwrapOrError(Expected<T> EO) {
  26   if (EO)
  27     return *EO;
  28   std::string Buf;
  29   raw_string_ostream OS(Buf);
  30   logAllUnhandledErrors(EO.takeError(), OS, "");
  31   OS.flush();
  32   error(Buf);
  33 }
  34
  35 } // end namespace llvm
  36
  37 #endif // LLVM_TOOLS_OBJCOPY_OBJCOPY_H