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1 //===- BinaryStreamError.cpp - Error extensions for streams -----*- C++ -*-===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8
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9 #include "llvm/Support/BinaryStreamError.h"
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10 #include "llvm/Support/ErrorHandling.h"
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11
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12 using namespace llvm;
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13
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14 char BinaryStreamError::ID = 0;
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15
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16 BinaryStreamError::BinaryStreamError(stream_error_code C)
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17 : BinaryStreamError(C, "") {}
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18
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19 BinaryStreamError::BinaryStreamError(StringRef Context)
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20 : BinaryStreamError(stream_error_code::unspecified, Context) {}
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21
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22 BinaryStreamError::BinaryStreamError(stream_error_code C, StringRef Context)
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23 : Code(C) {
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24 ErrMsg = "Stream Error: ";
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25 switch (C) {
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26 case stream_error_code::unspecified:
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27 ErrMsg += "An unspecified error has occurred.";
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28 break;
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29 case stream_error_code::stream_too_short:
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30 ErrMsg += "The stream is too short to perform the requested operation.";
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31 break;
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32 case stream_error_code::invalid_array_size:
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33 ErrMsg += "The buffer size is not a multiple of the array element size.";
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34 break;
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35 case stream_error_code::invalid_offset:
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36 ErrMsg += "The specified offset is invalid for the current stream.";
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37 break;
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38 case stream_error_code::filesystem_error:
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39 ErrMsg += "An I/O error occurred on the file system.";
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40 break;
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41 }
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42
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43 if (!Context.empty()) {
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44 ErrMsg += " ";
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45 ErrMsg += Context;
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46 }
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47 }
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48
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49 void BinaryStreamError::log(raw_ostream &OS) const { OS << ErrMsg; }
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50
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51 StringRef BinaryStreamError::getErrorMessage() const { return ErrMsg; }
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52
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53 std::error_code BinaryStreamError::convertToErrorCode() const {
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54 return inconvertibleErrorCode();
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55 }
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