1 //===- BinaryStreamError.cpp - Error extensions for streams -----*- 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/Support/BinaryStreamError.h" 11 #include "llvm/Support/ErrorHandling.h" 12 13 using namespace llvm; 14 15 char BinaryStreamError::ID = 0; 16 17 BinaryStreamError::BinaryStreamError(stream_error_code C) 18 : BinaryStreamError(C, "") {} 19 20 BinaryStreamError::BinaryStreamError(StringRef Context) 21 : BinaryStreamError(stream_error_code::unspecified, Context) {} 22 23 BinaryStreamError::BinaryStreamError(stream_error_code C, StringRef Context) 24 : Code(C) { 25 ErrMsg = "Stream Error: "; 26 switch (C) { 27 case stream_error_code::unspecified: 28 ErrMsg += "An unspecified error has occurred."; 29 break; 30 case stream_error_code::stream_too_short: 31 ErrMsg += "The stream is too short to perform the requested operation."; 32 break; 33 case stream_error_code::invalid_array_size: 34 ErrMsg += "The buffer size is not a multiple of the array element size."; 35 break; 36 case stream_error_code::invalid_offset: 37 ErrMsg += "The specified offset is invalid for the current stream."; 38 break; 39 case stream_error_code::filesystem_error: 40 ErrMsg += "An I/O error occurred on the file system."; 41 break; 42 } 43 44 if (!Context.empty()) { 45 ErrMsg += " "; 46 ErrMsg += Context; 47 } 48 } 49 50 void BinaryStreamError::log(raw_ostream &OS) const { OS << ErrMsg; } 51 52 StringRef BinaryStreamError::getErrorMessage() const { return ErrMsg; } 53 54 std::error_code BinaryStreamError::convertToErrorCode() const { 55 return inconvertibleErrorCode(); 56 } 57