xref: /llvm-project/llvm/lib/DebugInfo/PDB/GenericError.cpp (revision d93b07f0b09c55bb7e01b463a822b214d141d6a8)
1 //===- Error.cpp - system_error extensions for PDB --------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #include "llvm/DebugInfo/PDB/GenericError.h"
11 #include "llvm/Support/ErrorHandling.h"
12 #include "llvm/Support/ManagedStatic.h"
13 
14 using namespace llvm;
15 using namespace llvm::pdb;
16 
17 // FIXME: This class is only here to support the transition to llvm::Error. It
18 // will be removed once this transition is complete. Clients should prefer to
19 // deal with the Error value directly, rather than converting to error_code.
20 class PDBErrorCategory : public std::error_category {
21 public:
22   const char *name() const noexcept override { return "llvm.pdb"; }
23   std::string message(int Condition) const override {
24     switch (static_cast<pdb_error_code>(Condition)) {
25     case pdb_error_code::unspecified:
26       return "An unknown error has occurred.";
27     case pdb_error_code::type_server_not_found:
28         return "Type server PDB was not found.";
29     case pdb_error_code::dia_sdk_not_present:
30       return "LLVM was not compiled with support for DIA. This usually means "
31              "that you are not using MSVC, or your Visual Studio "
32              "installation is corrupt.";
33     case pdb_error_code::dia_failed_loading:
34       return "DIA is only supported when using MSVC.";
35     case pdb_error_code::invalid_utf8_path:
36       return "The PDB file path is an invalid UTF8 sequence.";
37     case pdb_error_code::signature_out_of_date:
38       return "The signature does not match; the file(s) might be out of date.";
39     }
40     llvm_unreachable("Unrecognized generic_error_code");
41   }
42 };
43 
44 static llvm::ManagedStatic<PDBErrorCategory> PDBCategory;
45 const std::error_category &llvm::pdb::PDBErrCategory() { return *PDBCategory; }
46 
47 char PDBError::ID;
48