| //===- MSFError.cpp - Error extensions for MSF files ------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/DebugInfo/MSF/MSFError.h" |
| #include "llvm/Support/ErrorHandling.h" |
| #include "llvm/Support/ManagedStatic.h" |
| |
| using namespace llvm; |
| using namespace llvm::msf; |
| |
| namespace { |
| // FIXME: This class is only here to support the transition to llvm::Error. It |
| // will be removed once this transition is complete. Clients should prefer to |
| // deal with the Error value directly, rather than converting to error_code. |
| class MSFErrorCategory : public std::error_category { |
| public: |
| const char *name() const noexcept override { return "llvm.msf"; } |
| |
| std::string message(int Condition) const override { |
| switch (static_cast<msf_error_code>(Condition)) { |
| case msf_error_code::unspecified: |
| return "An unknown error has occurred."; |
| case msf_error_code::insufficient_buffer: |
| return "The buffer is not large enough to read the requested number of " |
| "bytes."; |
| case msf_error_code::not_writable: |
| return "The specified stream is not writable."; |
| case msf_error_code::no_stream: |
| return "The specified stream does not exist."; |
| case msf_error_code::invalid_format: |
| return "The data is in an unexpected format."; |
| case msf_error_code::block_in_use: |
| return "The block is already in use."; |
| } |
| llvm_unreachable("Unrecognized msf_error_code"); |
| } |
| }; |
| } // end anonymous namespace |
| |
| static ManagedStatic<MSFErrorCategory> Category; |
| |
| char MSFError::ID = 0; |
| |
| MSFError::MSFError(msf_error_code C) : MSFError(C, "") {} |
| |
| MSFError::MSFError(const std::string &Context) |
| : MSFError(msf_error_code::unspecified, Context) {} |
| |
| MSFError::MSFError(msf_error_code C, const std::string &Context) : Code(C) { |
| ErrMsg = "MSF Error: "; |
| std::error_code EC = convertToErrorCode(); |
| if (Code != msf_error_code::unspecified) |
| ErrMsg += EC.message() + " "; |
| if (!Context.empty()) |
| ErrMsg += Context; |
| } |
| |
| void MSFError::log(raw_ostream &OS) const { OS << ErrMsg << "\n"; } |
| |
| const std::string &MSFError::getErrorMessage() const { return ErrMsg; } |
| |
| std::error_code MSFError::convertToErrorCode() const { |
| return std::error_code(static_cast<int>(Code), *Category); |
| } |