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llvm-mirror/lib/Object/Error.cpp
Michael J. Spencer 83e956656a Object: Add proper error handling.
llvm-svn: 133872
2011-06-25 17:55:23 +00:00

58 lines
1.7 KiB
C++

//===- Error.cpp - system_error extensions for Object -----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This defines a new error_category for the Object library.
//
//===----------------------------------------------------------------------===//
#include "llvm/Object/Error.h"
#include "llvm/Support/ErrorHandling.h"
using namespace llvm;
using namespace object;
namespace {
class _object_error_category : public _do_message {
public:
virtual const char* name() const;
virtual std::string message(int ev) const;
virtual error_condition default_error_condition(int ev) const;
};
}
const char *_object_error_category::name() const {
return "llvm.object";
}
std::string _object_error_category::message(int ev) const {
switch (ev) {
case object_error::success: return "Success";
case object_error::invalid_file_type:
return "The file was not recognized as a valid object file";
case object_error::parse_failed:
return "Invalid data was encountered while parsing the file";
case object_error::unexpected_eof:
return "The end of the file was unexpectedly encountered";
default:
llvm_unreachable("An enumerator of object_error does not have a message "
"defined.");
}
}
error_condition _object_error_category::default_error_condition(int ev) const {
if (ev == object_error::success)
return errc::success;
return errc::invalid_argument;
}
const error_category &object::object_category() {
static _object_error_category o;
return o;
}