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
12using namespace llvm;
13
14char BinaryStreamError::ID = 0;
15
16BinaryStreamError::BinaryStreamError(stream_error_code C)
17    : BinaryStreamError(C, "") {}
18
19BinaryStreamError::BinaryStreamError(StringRef Context)
20    : BinaryStreamError(stream_error_code::unspecified, Context) {}
21
22BinaryStreamError::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
49void BinaryStreamError::log(raw_ostream &OS) const { OS << ErrMsg; }
50
51StringRef BinaryStreamError::getErrorMessage() const { return ErrMsg; }
52
53std::error_code BinaryStreamError::convertToErrorCode() const {
54  return inconvertibleErrorCode();
55}
56