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