llvm/lib/DebugInfo/PDB/GenericError.cpp
Reid Kleckner 5b1c9f3223 Remove LLVM_NOEXCEPT and replace it with noexcept
Now that we have dropped MSVC 2013, all supported compilers support
noexcept and we can drop this portability macro.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@284672 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-19 23:52:38 +00:00

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2.3 KiB
C++

//===- Error.cpp - system_error extensions for PDB --------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/DebugInfo/PDB/GenericError.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/ManagedStatic.h"
using namespace llvm;
using namespace llvm::pdb;
namespace {
// FIXME: This class is only here to support the transition to llvm::Error. It
// will be removed once this transition is complete. Clients should prefer to
// deal with the Error value directly, rather than converting to error_code.
class GenericErrorCategory : public std::error_category {
public:
const char *name() const noexcept override { return "llvm.pdb"; }
std::string message(int Condition) const override {
switch (static_cast<generic_error_code>(Condition)) {
case generic_error_code::unspecified:
return "An unknown error has occurred.";
case generic_error_code::dia_sdk_not_present:
return "LLVM was not compiled with support for DIA. This usually means "
"that you are are not using MSVC, or your Visual Studio "
"installation "
"is corrupt.";
case generic_error_code::invalid_path:
return "Unable to load PDB. Make sure the file exists and is readable.";
}
llvm_unreachable("Unrecognized generic_error_code");
}
};
} // end anonymous namespace
static ManagedStatic<GenericErrorCategory> Category;
char GenericError::ID = 0;
GenericError::GenericError(generic_error_code C) : GenericError(C, "") {}
GenericError::GenericError(StringRef Context)
: GenericError(generic_error_code::unspecified, Context) {}
GenericError::GenericError(generic_error_code C, StringRef Context) : Code(C) {
ErrMsg = "PDB Error: ";
std::error_code EC = convertToErrorCode();
if (Code != generic_error_code::unspecified)
ErrMsg += EC.message() + " ";
if (!Context.empty())
ErrMsg += Context;
}
void GenericError::log(raw_ostream &OS) const { OS << ErrMsg << "\n"; }
StringRef GenericError::getErrorMessage() const { return ErrMsg; }
std::error_code GenericError::convertToErrorCode() const {
return std::error_code(static_cast<int>(Code), *Category);
}