50 lines · cpp
1//===- Error.cpp - system_error extensions for PDB --------------*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "llvm/DebugInfo/PDB/GenericError.h"10#include "llvm/Support/ErrorHandling.h"11 12using namespace llvm;13using namespace llvm::pdb;14 15namespace {16// FIXME: This class is only here to support the transition to llvm::Error. It17// will be removed once this transition is complete. Clients should prefer to18// deal with the Error value directly, rather than converting to error_code.19class PDBErrorCategory : public std::error_category {20public:21 const char *name() const noexcept override { return "llvm.pdb"; }22 std::string message(int Condition) const override {23 switch (static_cast<pdb_error_code>(Condition)) {24 case pdb_error_code::unspecified:25 return "An unknown error has occurred.";26 case pdb_error_code::dia_sdk_not_present:27 return "LLVM was not compiled with support for DIA. This usually means "28 "that you are not using MSVC, or your Visual Studio "29 "installation is corrupt.";30 case pdb_error_code::dia_failed_loading:31 return "DIA is only supported when using MSVC.";32 case pdb_error_code::invalid_utf8_path:33 return "The PDB file path is an invalid UTF8 sequence.";34 case pdb_error_code::signature_out_of_date:35 return "The signature does not match; the file(s) might be out of date.";36 case pdb_error_code::no_matching_pch:37 return "No matching precompiled header could be located.";38 }39 llvm_unreachable("Unrecognized generic_error_code");40 }41};42} // namespace43 44const std::error_category &llvm::pdb::PDBErrCategory() {45 static PDBErrorCategory PDBCategory;46 return PDBCategory;47}48 49char PDBError::ID;50