1 #include "llvm/DebugInfo/PDB/Raw/RawError.h" 2 #include "llvm/Support/ErrorHandling.h" 3 #include "llvm/Support/ManagedStatic.h" 4 5 using namespace llvm; 6 using namespace llvm::pdb; 7 8 namespace { 9 // FIXME: This class is only here to support the transition to llvm::Error. It 10 // will be removed once this transition is complete. Clients should prefer to 11 // deal with the Error value directly, rather than converting to error_code. 12 class RawErrorCategory : public std::error_category { 13 public: name() const14 const char *name() const LLVM_NOEXCEPT override { return "llvm.pdb.raw"; } 15 message(int Condition) const16 std::string message(int Condition) const override { 17 switch (static_cast<raw_error_code>(Condition)) { 18 case raw_error_code::unspecified: 19 return "An unknown error has occurred."; 20 case raw_error_code::feature_unsupported: 21 return "The feature is unsupported by the implementation."; 22 case raw_error_code::corrupt_file: 23 return "The PDB file is corrupt."; 24 case raw_error_code::insufficient_buffer: 25 return "The buffer is not large enough to read the requested number of " 26 "bytes."; 27 case raw_error_code::no_stream: 28 return "The specified stream could not be loaded."; 29 case raw_error_code::index_out_of_bounds: 30 return "The specified item does not exist in the array."; 31 case raw_error_code::invalid_block_address: 32 return "The specified block address is not valid."; 33 case raw_error_code::not_writable: 34 return "The PDB does not support writing."; 35 case raw_error_code::invalid_tpi_hash: 36 return "The Type record has an invalid hash value."; 37 } 38 llvm_unreachable("Unrecognized raw_error_code"); 39 } 40 }; 41 } // end anonymous namespace 42 43 static ManagedStatic<RawErrorCategory> Category; 44 45 char RawError::ID = 0; 46 RawError(raw_error_code C)47RawError::RawError(raw_error_code C) : RawError(C, "") {} 48 RawError(const std::string & Context)49RawError::RawError(const std::string &Context) 50 : RawError(raw_error_code::unspecified, Context) {} 51 RawError(raw_error_code C,const std::string & Context)52RawError::RawError(raw_error_code C, const std::string &Context) : Code(C) { 53 ErrMsg = "Native PDB Error: "; 54 std::error_code EC = convertToErrorCode(); 55 if (Code != raw_error_code::unspecified) 56 ErrMsg += EC.message() + " "; 57 if (!Context.empty()) 58 ErrMsg += Context; 59 } 60 log(raw_ostream & OS) const61void RawError::log(raw_ostream &OS) const { OS << ErrMsg << "\n"; } 62 getErrorMessage() const63const std::string &RawError::getErrorMessage() const { return ErrMsg; } 64 convertToErrorCode() const65std::error_code RawError::convertToErrorCode() const { 66 return std::error_code(static_cast<int>(Code), *Category); 67 } 68