tools/obj2yaml/Error.cpp

   1 //===- Error.cpp - system_error extensions for obj2yaml ---------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "Error.h"
  10 #include "llvm/Support/ErrorHandling.h"
  11
  12 using namespace llvm;
  13
  14 namespace {
  15 // FIXME: This class is only here to support the transition to llvm::Error. It
  16 // will be removed once this transition is complete. Clients should prefer to
  17 // deal with the Error value directly, rather than converting to error_code.
  18 class _obj2yaml_error_category : public std::error_category {
  19 public:
  20   const char *name() const noexcept override;
  21   std::string message(int ev) const override;
  22 };
  23 } // namespace
  24
  25 const char *_obj2yaml_error_category::name() const noexcept {
  26   return "obj2yaml";
  27 }
  28
  29 std::string _obj2yaml_error_category::message(int ev) const {
  30   switch (static_cast<obj2yaml_error>(ev)) {
  31   case obj2yaml_error::success:
  32     return "Success";
  33   case obj2yaml_error::file_not_found:
  34     return "No such file.";
  35   case obj2yaml_error::unrecognized_file_format:
  36     return "Unrecognized file type.";
  37   case obj2yaml_error::unsupported_obj_file_format:
  38     return "Unsupported object file format.";
  39   case obj2yaml_error::not_implemented:
  40     return "Feature not yet implemented.";
  41   }
  42   llvm_unreachable("An enumerator of obj2yaml_error does not have a message "
  43                    "defined.");
  44 }
  45
  46 namespace llvm {
  47
  48 const std::error_category &obj2yaml_category() {
  49   static _obj2yaml_error_category o;
  50   return o;
  51 }
  52
  53 char Obj2YamlError::ID = 0;
  54
  55 void Obj2YamlError::log(raw_ostream &OS) const { OS << ErrMsg; }
  56
  57 std::error_code Obj2YamlError::convertToErrorCode() const {
  58   return std::error_code(static_cast<int>(Code), obj2yaml_category());
  59 }
  60
  61 } // namespace llvm