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
18namespace clang {
19namespace tooling {
20
21DiagnosticMessage::DiagnosticMessage(llvm::StringRef Message)
22 : Message(Message), FileOffset(0) {}
23
24DiagnosticMessage::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(SpellingLoc: 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(SpellingLoc: Loc);
36}
37
38FileByteRange::FileByteRange(
39 const SourceManager &Sources, CharSourceRange Range)
40 : FileOffset(0), Length(0) {
41 FilePath = std::string(Sources.getFilename(SpellingLoc: Range.getBegin()));
42 if (!FilePath.empty()) {
43 FileOffset = Sources.getFileOffset(SpellingLoc: Range.getBegin());
44 Length = Sources.getFileOffset(SpellingLoc: Range.getEnd()) - FileOffset;
45 }
46}
47
48Diagnostic::Diagnostic(llvm::StringRef DiagnosticName,
49 Diagnostic::Level DiagLevel, StringRef BuildDirectory)
50 : DiagnosticName(DiagnosticName), DiagLevel(DiagLevel),
51 BuildDirectory(BuildDirectory) {}
52
53Diagnostic::Diagnostic(llvm::StringRef DiagnosticName,
54 const DiagnosticMessage &Message,
55 const SmallVector<DiagnosticMessage, 1> &Notes,
56 Level DiagLevel, llvm::StringRef BuildDirectory)
57 : DiagnosticName(DiagnosticName), Message(Message), Notes(Notes),
58 DiagLevel(DiagLevel), BuildDirectory(BuildDirectory) {}
59
60const llvm::StringMap<Replacements> *selectFirstFix(const Diagnostic& D) {
61 if (!D.Message.Fix.empty())
62 return &D.Message.Fix;
63 auto Iter = llvm::find_if(Range: D.Notes, P: [](const tooling::DiagnosticMessage &D) {
64 return !D.Fix.empty();
65 });
66 if (Iter != D.Notes.end())
67 return &Iter->Fix;
68 return nullptr;
69}
70
71} // end namespace tooling
72} // end namespace clang
73

source code of clang/lib/Tooling/Core/Diagnostic.cpp