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      1 //===- CodeViewError.cpp - Error extensions for CodeView --------*- 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/CodeView/CodeViewError.h"
     10 #include "llvm/Support/ErrorHandling.h"
     11 #include "llvm/Support/ManagedStatic.h"
     12 
     13 using namespace llvm;
     14 using namespace llvm::codeview;
     15 
     16 namespace {
     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 } // namespace
     43 
     44 static llvm::ManagedStatic<CodeViewErrorCategory> CodeViewErrCategory;
     45 const std::error_category &llvm::codeview::CVErrorCategory() {
     46   return *CodeViewErrCategory;
     47 }
     48 
     49 char CodeViewError::ID;
     50