1 //===--- Diagnostic.cpp - Framework for clang diagnostics tools ----------===//
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 // Implements classes to support/store diagnostics refactoring.
10 //
11 //===----------------------------------------------------------------------===//
12
13 #include "clang/Tooling/Core/Diagnostic.h"
14 #include "clang/Basic/SourceLocation.h"
15 #include "clang/Basic/SourceManager.h"
16 #include "llvm/ADT/STLExtras.h"
17
18 namespace clang {
19 namespace tooling {
20
DiagnosticMessage(llvm::StringRef Message)21 DiagnosticMessage::DiagnosticMessage(llvm::StringRef Message)
22 : Message(Message), FileOffset(0) {}
23
DiagnosticMessage(llvm::StringRef Message,const SourceManager & Sources,SourceLocation Loc)24 DiagnosticMessage::DiagnosticMessage(llvm::StringRef Message,
25 const SourceManager &Sources,
26 SourceLocation Loc)
27 : Message(Message), FileOffset(0) {
28 assert(Loc.isValid() && Loc.isFileID());
29 FilePath = std::string(Sources.getFilename(Loc));
30
31 // Don't store offset in the scratch space. It doesn't tell anything to the
32 // user. Moreover, it depends on the history of macro expansions and thus
33 // prevents deduplication of warnings in headers.
34 if (!FilePath.empty())
35 FileOffset = Sources.getFileOffset(Loc);
36 }
37
FileByteRange(const SourceManager & Sources,CharSourceRange Range)38 FileByteRange::FileByteRange(
39 const SourceManager &Sources, CharSourceRange Range)
40 : FileOffset(0), Length(0) {
41 FilePath = std::string(Sources.getFilename(Range.getBegin()));
42 if (!FilePath.empty()) {
43 FileOffset = Sources.getFileOffset(Range.getBegin());
44 Length = Sources.getFileOffset(Range.getEnd()) - FileOffset;
45 }
46 }
47
Diagnostic(llvm::StringRef DiagnosticName,Diagnostic::Level DiagLevel,StringRef BuildDirectory)48 Diagnostic::Diagnostic(llvm::StringRef DiagnosticName,
49 Diagnostic::Level DiagLevel, StringRef BuildDirectory)
50 : DiagnosticName(DiagnosticName), DiagLevel(DiagLevel),
51 BuildDirectory(BuildDirectory) {}
52
Diagnostic(llvm::StringRef DiagnosticName,const DiagnosticMessage & Message,const SmallVector<DiagnosticMessage,1> & Notes,Level DiagLevel,llvm::StringRef BuildDirectory,const SmallVector<FileByteRange,1> & Ranges)53 Diagnostic::Diagnostic(llvm::StringRef DiagnosticName,
54 const DiagnosticMessage &Message,
55 const SmallVector<DiagnosticMessage, 1> &Notes,
56 Level DiagLevel, llvm::StringRef BuildDirectory,
57 const SmallVector<FileByteRange, 1> &Ranges)
58 : DiagnosticName(DiagnosticName), Message(Message), Notes(Notes),
59 DiagLevel(DiagLevel), BuildDirectory(BuildDirectory), Ranges(Ranges) {}
60
selectFirstFix(const Diagnostic & D)61 const llvm::StringMap<Replacements> *selectFirstFix(const Diagnostic& D) {
62 if (!D.Message.Fix.empty())
63 return &D.Message.Fix;
64 auto Iter = llvm::find_if(D.Notes, [](const tooling::DiagnosticMessage &D) {
65 return !D.Fix.empty();
66 });
67 if (Iter != D.Notes.end())
68 return &Iter->Fix;
69 return nullptr;
70 }
71
72 } // end namespace tooling
73 } // end namespace clang
74