1 //===- BinaryStreamError.cpp - Error extensions for streams -----*- 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/Support/BinaryStreamError.h"
10 #include "llvm/Support/ErrorHandling.h"
11 
12 using namespace llvm;
13 
14 char BinaryStreamError::ID = 0;
15 
BinaryStreamError(stream_error_code C)16 BinaryStreamError::BinaryStreamError(stream_error_code C)
17     : BinaryStreamError(C, "") {}
18 
BinaryStreamError(StringRef Context)19 BinaryStreamError::BinaryStreamError(StringRef Context)
20     : BinaryStreamError(stream_error_code::unspecified, Context) {}
21 
BinaryStreamError(stream_error_code C,StringRef Context)22 BinaryStreamError::BinaryStreamError(stream_error_code C, StringRef Context)
23     : Code(C) {
24   ErrMsg = "Stream Error: ";
25   switch (C) {
26   case stream_error_code::unspecified:
27     ErrMsg += "An unspecified error has occurred.";
28     break;
29   case stream_error_code::stream_too_short:
30     ErrMsg += "The stream is too short to perform the requested operation.";
31     break;
32   case stream_error_code::invalid_array_size:
33     ErrMsg += "The buffer size is not a multiple of the array element size.";
34     break;
35   case stream_error_code::invalid_offset:
36     ErrMsg += "The specified offset is invalid for the current stream.";
37     break;
38   case stream_error_code::filesystem_error:
39     ErrMsg += "An I/O error occurred on the file system.";
40     break;
41   }
42 
43   if (!Context.empty()) {
44     ErrMsg += "  ";
45     ErrMsg += Context;
46   }
47 }
48 
log(raw_ostream & OS) const49 void BinaryStreamError::log(raw_ostream &OS) const { OS << ErrMsg; }
50 
getErrorMessage() const51 StringRef BinaryStreamError::getErrorMessage() const { return ErrMsg; }
52 
convertToErrorCode() const53 std::error_code BinaryStreamError::convertToErrorCode() const {
54   return inconvertibleErrorCode();
55 }
56