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14 | pmbaty | 1 | //===--- Diagnostic.h - Framework for clang diagnostics tools --*- C++ -*-===// |
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 | // \file |
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10 | // Structures supporting diagnostics and refactorings that span multiple |
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11 | // translation units. Indicate diagnostics reports and replacements |
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12 | // suggestions for the analyzed sources. |
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13 | // |
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14 | //===----------------------------------------------------------------------===// |
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15 | |||
16 | #ifndef LLVM_CLANG_TOOLING_CORE_DIAGNOSTIC_H |
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17 | #define LLVM_CLANG_TOOLING_CORE_DIAGNOSTIC_H |
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18 | |||
19 | #include "Replacement.h" |
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20 | #include "clang/Basic/Diagnostic.h" |
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21 | #include "llvm/ADT/SmallVector.h" |
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22 | #include "llvm/ADT/StringMap.h" |
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23 | #include "llvm/ADT/StringRef.h" |
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24 | #include <string> |
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25 | |||
26 | namespace clang { |
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27 | namespace tooling { |
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28 | |||
29 | /// Represents a range within a specific source file. |
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30 | struct FileByteRange { |
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31 | FileByteRange() = default; |
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32 | |||
33 | FileByteRange(const SourceManager &Sources, CharSourceRange Range); |
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34 | |||
35 | std::string FilePath; |
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36 | unsigned FileOffset; |
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37 | unsigned Length; |
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38 | }; |
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39 | |||
40 | /// Represents the diagnostic message with the error message associated |
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41 | /// and the information on the location of the problem. |
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42 | struct DiagnosticMessage { |
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43 | DiagnosticMessage(llvm::StringRef Message = ""); |
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44 | |||
45 | /// Constructs a diagnostic message with anoffset to the diagnostic |
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46 | /// within the file where the problem occurred. |
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47 | /// |
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48 | /// \param Loc Should be a file location, it is not meaningful for a macro |
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49 | /// location. |
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50 | /// |
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51 | DiagnosticMessage(llvm::StringRef Message, const SourceManager &Sources, |
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52 | SourceLocation Loc); |
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53 | |||
54 | std::string Message; |
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55 | std::string FilePath; |
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56 | unsigned FileOffset; |
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57 | |||
58 | /// Fixes for this diagnostic, grouped by file path. |
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59 | llvm::StringMap<Replacements> Fix; |
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60 | |||
61 | /// Extra source ranges associated with the note, in addition to the location |
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62 | /// of the Message itself. |
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63 | llvm::SmallVector<FileByteRange, 1> Ranges; |
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64 | }; |
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65 | |||
66 | /// Represents the diagnostic with the level of severity and possible |
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67 | /// fixes to be applied. |
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68 | struct Diagnostic { |
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69 | enum Level { |
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70 | Remark = DiagnosticsEngine::Remark, |
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71 | Warning = DiagnosticsEngine::Warning, |
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72 | Error = DiagnosticsEngine::Error |
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73 | }; |
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74 | |||
75 | Diagnostic() = default; |
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76 | |||
77 | Diagnostic(llvm::StringRef DiagnosticName, Level DiagLevel, |
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78 | StringRef BuildDirectory); |
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79 | |||
80 | Diagnostic(llvm::StringRef DiagnosticName, const DiagnosticMessage &Message, |
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81 | const SmallVector<DiagnosticMessage, 1> &Notes, Level DiagLevel, |
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82 | llvm::StringRef BuildDirectory); |
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83 | |||
84 | /// Name identifying the Diagnostic. |
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85 | std::string DiagnosticName; |
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86 | |||
87 | /// Message associated to the diagnostic. |
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88 | DiagnosticMessage Message; |
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89 | |||
90 | /// Potential notes about the diagnostic. |
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91 | SmallVector<DiagnosticMessage, 1> Notes; |
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92 | |||
93 | /// Diagnostic level. Can indicate either an error or a warning. |
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94 | Level DiagLevel; |
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95 | |||
96 | /// A build directory of the diagnostic source file. |
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97 | /// |
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98 | /// It's an absolute path which is `directory` field of the source file in |
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99 | /// compilation database. If users don't specify the compilation database |
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100 | /// directory, it is the current directory where clang-tidy runs. |
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101 | /// |
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102 | /// Note: it is empty in unittest. |
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103 | std::string BuildDirectory; |
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104 | }; |
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105 | |||
106 | /// Collection of Diagnostics generated from a single translation unit. |
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107 | struct TranslationUnitDiagnostics { |
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108 | /// Name of the main source for the translation unit. |
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109 | std::string MainSourceFile; |
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110 | std::vector<Diagnostic> Diagnostics; |
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111 | }; |
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112 | |||
113 | /// Get the first fix to apply for this diagnostic. |
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114 | /// \returns nullptr if no fixes are attached to the diagnostic. |
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115 | const llvm::StringMap<Replacements> *selectFirstFix(const Diagnostic& D); |
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116 | |||
117 | } // end namespace tooling |
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118 | } // end namespace clang |
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119 | #endif // LLVM_CLANG_TOOLING_CORE_DIAGNOSTIC_H |