1 /*===-- CXStoreDiagnostic.cpp - Diagnostics C Interface ----------*- C++ -*-===*\
2 |*                                                                            *|
3 |*                     The LLVM Compiler Infrastructure                       *|
4 |*                                                                            *|
5 |* This file is distributed under the University of Illinois Open Source      *|
6 |* License. See LICENSE.TXT for details.                                      *|
7 |*                                                                            *|
8 |*===----------------------------------------------------------------------===*|
9 |*                                                                            *|
10 |* Implements part of the diagnostic functions of the Clang C interface.      *|
11 |*                                                                            *|
12 \*===----------------------------------------------------------------------===*/
13 
14 #include "CIndexDiagnostic.h"
15 #include "CIndexer.h"
16 #include "CXTranslationUnit.h"
17 #include "CXSourceLocation.h"
18 #include "CXString.h"
19 
20 #include "clang/Frontend/ASTUnit.h"
21 #include "clang/Frontend/FrontendDiagnostic.h"
22 #include "llvm/ADT/SmallString.h"
23 #include "llvm/ADT/Twine.h"
24 #include "llvm/Support/MemoryBuffer.h"
25 #include "llvm/Support/raw_ostream.h"
26 
27 using namespace clang;
28 using namespace clang::cxloc;
29 
30 CXDiagnosticSeverity CXStoredDiagnostic::getSeverity() const {
31   switch (Diag.getLevel()) {
32     case DiagnosticsEngine::Ignored: return CXDiagnostic_Ignored;
33     case DiagnosticsEngine::Note:    return CXDiagnostic_Note;
34     case DiagnosticsEngine::Warning: return CXDiagnostic_Warning;
35     case DiagnosticsEngine::Error:   return CXDiagnostic_Error;
36     case DiagnosticsEngine::Fatal:   return CXDiagnostic_Fatal;
37   }
38 
39   llvm_unreachable("Invalid diagnostic level");
40 }
41 
42 CXSourceLocation CXStoredDiagnostic::getLocation() const {
43   if (Diag.getLocation().isInvalid())
44     return clang_getNullLocation();
45 
46   return translateSourceLocation(Diag.getLocation().getManager(),
47                                  LangOpts, Diag.getLocation());
48 }
49 
50 CXString CXStoredDiagnostic::getSpelling() const {
51   return cxstring::createRef(Diag.getMessage());
52 }
53 
54 CXString CXStoredDiagnostic::getDiagnosticOption(CXString *Disable) const {
55   unsigned ID = Diag.getID();
56   StringRef Option = DiagnosticIDs::getWarningOptionForDiag(ID);
57   if (!Option.empty()) {
58     if (Disable)
59       *Disable = cxstring::createDup((Twine("-Wno-") + Option).str());
60     return cxstring::createDup((Twine("-W") + Option).str());
61   }
62 
63   if (ID == diag::fatal_too_many_errors) {
64     if (Disable)
65       *Disable = cxstring::createRef("-ferror-limit=0");
66     return cxstring::createRef("-ferror-limit=");
67   }
68 
69   return cxstring::createEmpty();
70 }
71 
72 unsigned CXStoredDiagnostic::getCategory() const {
73   return DiagnosticIDs::getCategoryNumberForDiag(Diag.getID());
74 }
75 
76 CXString CXStoredDiagnostic::getCategoryText() const {
77   unsigned catID = DiagnosticIDs::getCategoryNumberForDiag(Diag.getID());
78   return cxstring::createRef(DiagnosticIDs::getCategoryNameFromID(catID));
79 }
80 
81 unsigned CXStoredDiagnostic::getNumRanges() const {
82   if (Diag.getLocation().isInvalid())
83     return 0;
84 
85   return Diag.range_size();
86 }
87 
88 CXSourceRange CXStoredDiagnostic::getRange(unsigned int Range) const {
89   assert(Diag.getLocation().isValid());
90   return translateSourceRange(Diag.getLocation().getManager(),
91                               LangOpts,
92                               Diag.range_begin()[Range]);
93 }
94 
95 unsigned CXStoredDiagnostic::getNumFixIts() const {
96   if (Diag.getLocation().isInvalid())
97     return 0;
98   return Diag.fixit_size();
99 }
100 
101 CXString CXStoredDiagnostic::getFixIt(unsigned FixIt,
102                                       CXSourceRange *ReplacementRange) const {
103   const FixItHint &Hint = Diag.fixit_begin()[FixIt];
104   if (ReplacementRange) {
105     // Create a range that covers the entire replacement (or
106     // removal) range, adjusting the end of the range to point to
107     // the end of the token.
108     *ReplacementRange = translateSourceRange(Diag.getLocation().getManager(),
109                                              LangOpts, Hint.RemoveRange);
110   }
111   return cxstring::createDup(Hint.CodeToInsert);
112 }
113 
114