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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
37 lines
870 B
C++
37 lines
870 B
C++
//===- Error.h - system_error extensions for obj2yaml -----------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_ERROR_H
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#define LLVM_TOOLS_ERROR_H
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#include "llvm/Support/system_error.h"
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namespace llvm {
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const error_category &obj2yaml_category();
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enum class obj2yaml_error {
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success = 0,
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file_not_found,
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unrecognized_file_format,
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unsupported_obj_file_format
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};
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inline error_code make_error_code(obj2yaml_error e) {
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return error_code(static_cast<int>(e), obj2yaml_category());
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}
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} // namespace llvm
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namespace std {
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template <> struct is_error_code_enum<llvm::obj2yaml_error> : std::true_type {};
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}
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#endif
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