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[FreeBSD/FreeBSD.git] / contrib / llvm / lib / DebugInfo / CodeView / CodeViewError.cpp
1 //===- CodeViewError.cpp - Error extensions for CodeView --------*- 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/CodeView/CodeViewError.h"
11 #include "llvm/Support/ErrorHandling.h"
12 #include "llvm/Support/ManagedStatic.h"
13
14 using namespace llvm;
15 using namespace llvm::codeview;
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 CodeViewErrorCategory : public std::error_category {
21 public:
22   const char *name() const noexcept override { return "llvm.codeview"; }
23   std::string message(int Condition) const override {
24     switch (static_cast<cv_error_code>(Condition)) {
25     case cv_error_code::unspecified:
26       return "An unknown CodeView error has occurred.";
27     case cv_error_code::insufficient_buffer:
28       return "The buffer is not large enough to read the requested number of "
29              "bytes.";
30     case cv_error_code::corrupt_record:
31       return "The CodeView record is corrupted.";
32     case cv_error_code::no_records:
33       return "There are no records.";
34     case cv_error_code::operation_unsupported:
35       return "The requested operation is not supported.";
36     case cv_error_code::unknown_member_record:
37       return "The member record is of an unknown type.";
38     }
39     llvm_unreachable("Unrecognized cv_error_code");
40   }
41 };
42
43 static llvm::ManagedStatic<CodeViewErrorCategory> CodeViewErrCategory;
44 const std::error_category &llvm::codeview::CVErrorCategory() {
45   return *CodeViewErrCategory;
46 }
47
48 char CodeViewError::ID;