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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::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