Error.cpp revision 36b56886974eae4f9c5ebc96befd3e7bfe5de338 
1//===- Error.cpp - system_error extensions for Object -----------*- 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 defines a new error_category for the Object library.
11//
12//===----------------------------------------------------------------------===//
13
14#include "llvm/Object/Error.h"
15#include "llvm/Support/ErrorHandling.h"
16
17using namespace llvm;
18using namespace object;
19
20namespace {
21class _object_error_category : public error_category {
22public:
23  const char* name() const override;
24  std::string message(int ev) const override;
25  error_condition default_error_condition(int ev) const override;
26};
27}
28
29const char *_object_error_category::name() const {
30  return "llvm.object";
31}
32
33std::string _object_error_category::message(int ev) const {
34  object_error::Impl E = static_cast<object_error::Impl>(ev);
35  switch (E) {
36  case object_error::success: return "Success";
37  case object_error::arch_not_found:
38    return "No object file for requested architecture";
39  case object_error::invalid_file_type:
40    return "The file was not recognized as a valid object file";
41  case object_error::parse_failed:
42    return "Invalid data was encountered while parsing the file";
43  case object_error::unexpected_eof:
44    return "The end of the file was unexpectedly encountered";
45  }
46  llvm_unreachable("An enumerator of object_error does not have a message "
47                   "defined.");
48}
49
50error_condition _object_error_category::default_error_condition(int ev) const {
51  if (ev == object_error::success)
52    return errc::success;
53  return errc::invalid_argument;
54}
55
56const error_category &object::object_category() {
57  static _object_error_category o;
58  return o;
59}
60