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      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::Remark:
     35     // The 'Remark' level isn't represented in the stable API.
     36     case DiagnosticsEngine::Warning: return CXDiagnostic_Warning;
     37     case DiagnosticsEngine::Error:   return CXDiagnostic_Error;
     38     case DiagnosticsEngine::Fatal:   return CXDiagnostic_Fatal;
     39   }
     40 
     41   llvm_unreachable("Invalid diagnostic level");
     42 }
     43 
     44 CXSourceLocation CXStoredDiagnostic::getLocation() const {
     45   if (Diag.getLocation().isInvalid())
     46     return clang_getNullLocation();
     47 
     48   return translateSourceLocation(Diag.getLocation().getManager(),
     49                                  LangOpts, Diag.getLocation());
     50 }
     51 
     52 CXString CXStoredDiagnostic::getSpelling() const {
     53   return cxstring::createRef(Diag.getMessage());
     54 }
     55 
     56 CXString CXStoredDiagnostic::getDiagnosticOption(CXString *Disable) const {
     57   unsigned ID = Diag.getID();
     58   StringRef Option = DiagnosticIDs::getWarningOptionForDiag(ID);
     59   if (!Option.empty()) {
     60     if (Disable)
     61       *Disable = cxstring::createDup((Twine("-Wno-") + Option).str());
     62     return cxstring::createDup((Twine("-W") + Option).str());
     63   }
     64 
     65   if (ID == diag::fatal_too_many_errors) {
     66     if (Disable)
     67       *Disable = cxstring::createRef("-ferror-limit=0");
     68     return cxstring::createRef("-ferror-limit=");
     69   }
     70 
     71   return cxstring::createEmpty();
     72 }
     73 
     74 unsigned CXStoredDiagnostic::getCategory() const {
     75   return DiagnosticIDs::getCategoryNumberForDiag(Diag.getID());
     76 }
     77 
     78 CXString CXStoredDiagnostic::getCategoryText() const {
     79   unsigned catID = DiagnosticIDs::getCategoryNumberForDiag(Diag.getID());
     80   return cxstring::createRef(DiagnosticIDs::getCategoryNameFromID(catID));
     81 }
     82 
     83 unsigned CXStoredDiagnostic::getNumRanges() const {
     84   if (Diag.getLocation().isInvalid())
     85     return 0;
     86 
     87   return Diag.range_size();
     88 }
     89 
     90 CXSourceRange CXStoredDiagnostic::getRange(unsigned int Range) const {
     91   assert(Diag.getLocation().isValid());
     92   return translateSourceRange(Diag.getLocation().getManager(),
     93                               LangOpts,
     94                               Diag.range_begin()[Range]);
     95 }
     96 
     97 unsigned CXStoredDiagnostic::getNumFixIts() const {
     98   if (Diag.getLocation().isInvalid())
     99     return 0;
    100   return Diag.fixit_size();
    101 }
    102 
    103 CXString CXStoredDiagnostic::getFixIt(unsigned FixIt,
    104                                       CXSourceRange *ReplacementRange) const {
    105   const FixItHint &Hint = Diag.fixit_begin()[FixIt];
    106   if (ReplacementRange) {
    107     // Create a range that covers the entire replacement (or
    108     // removal) range, adjusting the end of the range to point to
    109     // the end of the token.
    110     *ReplacementRange = translateSourceRange(Diag.getLocation().getManager(),
    111                                              LangOpts, Hint.RemoveRange);
    112   }
    113   return cxstring::createDup(Hint.CodeToInsert);
    114 }
    115 
    116