tools/obj2yaml/Error.cpp

   1 //===- Error.cpp - system_error extensions for obj2yaml ---------*- 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 #include "Error.h"
  11 #include "llvm/Support/ErrorHandling.h"
  12
  13 using namespace llvm;
  14
  15 namespace {
  16 // FIXME: This class is only here to support the transition to llvm::Error. It
  17 // will be removed once this transition is complete. Clients should prefer to
  18 // deal with the Error value directly, rather than converting to error_code.
  19 class _obj2yaml_error_category : public std::error_category {
  20 public:
  21   const char *name() const noexcept override;
  22   std::string message(int ev) const override;
  23 };
  24 } // namespace
  25
  26 const char *_obj2yaml_error_category::name() const noexcept {
  27   return "obj2yaml";
  28 }
  29
  30 std::string _obj2yaml_error_category::message(int ev) const {
  31   switch (static_cast<obj2yaml_error>(ev)) {
  32   case obj2yaml_error::success:
  33     return "Success";
  34   case obj2yaml_error::file_not_found:
  35     return "No such file.";
  36   case obj2yaml_error::unrecognized_file_format:
  37     return "Unrecognized file type.";
  38   case obj2yaml_error::unsupported_obj_file_format:
  39     return "Unsupported object file format.";
  40   case obj2yaml_error::not_implemented:
  41     return "Feature not yet implemented.";
  42   }
  43   llvm_unreachable("An enumerator of obj2yaml_error does not have a message "
  44                    "defined.");
  45 }
  46
  47 namespace llvm {
  48
  49 const std::error_category &obj2yaml_category() {
  50   static _obj2yaml_error_category o;
  51   return o;
  52 }
  53
  54 char Obj2YamlError::ID = 0;
  55
  56 void Obj2YamlError::log(raw_ostream &OS) const { OS << ErrMsg; }
  57
  58 std::error_code Obj2YamlError::convertToErrorCode() const {
  59   return std::error_code(static_cast<int>(Code), obj2yaml_category());
  60 }
  61
  62 } // namespace llvm