mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-08-15 06:29:05 +00:00
7acd886ecf
The idea of this patch is to turn llvm/Support/system_error.h into a transitional header that just brings in the erorr_code api to the llvm namespace. I will remove it shortly afterwards. The cases where the general idea needed some tweaking: * std::errc is a namespace in msvc, so we cannot use "using std::errc". I could add an #ifdef, but there were not that many uses, so I just added std:: to them in this patch. * Template specialization had to be moved to the std namespace in this patch set already. * The msvc implementation of default_error_condition doesn't seem to provide the same transformations as we need. Not too surprising since the standard doesn't actually say what "equivalent" means. I fixed the problem by keeping our old mapping and using it at error_code construction time. Despite these shortcomings I think this is still a good thing. Some reasons: * The different implementations of system_error might improve over time. * It removes 925 lines of code from llvm already. * It removes 6313 bytes from the text segment of the clang binary when it is built with gcc and 2816 bytes when building with clang and libstdc++. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210687 91177308-0d34-0410-b5e6-96231b3b80d8
60 lines
1.9 KiB
C++
60 lines
1.9 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 error_category {
|
|
public:
|
|
const char* name() const LLVM_NOEXCEPT override;
|
|
std::string message(int ev) const override;
|
|
error_condition default_error_condition(int ev) const LLVM_NOEXCEPT override;
|
|
};
|
|
}
|
|
|
|
const char *_object_error_category::name() const {
|
|
return "llvm.object";
|
|
}
|
|
|
|
std::string _object_error_category::message(int EV) const {
|
|
object_error E = static_cast<object_error>(EV);
|
|
switch (E) {
|
|
case object_error::success: return "Success";
|
|
case object_error::arch_not_found:
|
|
return "No object file for requested architecture";
|
|
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";
|
|
}
|
|
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 (static_cast<object_error>(EV) == object_error::success)
|
|
return error_condition();
|
|
return std::errc::invalid_argument;
|
|
}
|
|
|
|
const error_category &object::object_category() {
|
|
static _object_error_category o;
|
|
return o;
|
|
}
|