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-exception
6//
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. It
17// will be removed once this transition is complete. Clients should prefer to
18// 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35 return "The signature does not match; the file(s) might be out of date.";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} // namespace
43
44const std::error_category &llvm::pdb::PDBErrCategory() {
45 static PDBErrorCategory PDBCategory;
46 return PDBCategory;
47}
48
49char PDBError::ID;
50