C++ DiagnosticsEngine::getClient方法代码示例

VerifyDiagnosticConsumer::VerifyDiagnosticConsumer(DiagnosticsEngine &Diags)
  : Diags(Diags),
    PrimaryClient(Diags.getClient()), OwnsPrimaryClient(Diags.ownsClient()),
    Buffer(new TextDiagnosticBuffer()),
    SrcManager(0), Status(HasNoDirectives)
{
  Diags.takeClient();
  assert(Diags.hasSourceManager());
  setSourceManager(Diags.getSourceManager());
}

HeaderSearch::HeaderSearch(FileManager &FM, DiagnosticsEngine &Diags,
                           const LangOptions &LangOpts, 
                           const TargetInfo *Target)
  : FileMgr(FM), Diags(Diags), FrameworkMap(64), 
    ModMap(FileMgr, *Diags.getClient(), LangOpts, Target)
{
  AngledDirIdx = 0;
  SystemDirIdx = 0;
  NoCurDirSearch = false;

  ExternalLookup = 0;
  ExternalSource = 0;
  NumIncluded = 0;
  NumMultiIncludeFileOptzn = 0;
  NumFrameworkLookups = NumSubFrameworkLookups = 0;
}

HeaderSearch::HeaderSearch(IntrusiveRefCntPtr<HeaderSearchOptions> HSOpts,
                           SourceManager &SourceMgr, DiagnosticsEngine &Diags,
                           const LangOptions &LangOpts, 
                           const TargetInfo *Target)
  : HSOpts(HSOpts), FileMgr(SourceMgr.getFileManager()), FrameworkMap(64),
    ModMap(SourceMgr, *Diags.getClient(), LangOpts, Target, *this)
{
  AngledDirIdx = 0;
  SystemDirIdx = 0;
  NoCurDirSearch = false;

  ExternalLookup = 0;
  ExternalSource = 0;
  NumIncluded = 0;
  NumMultiIncludeFileOptzn = 0;
  NumFrameworkLookups = NumSubFrameworkLookups = 0;
}

/// ProcessDiag - This is the method used to report a diagnostic that is
/// finally fully formed.
bool DiagnosticIDs::ProcessDiag(DiagnosticsEngine &Diag) const {
  Diagnostic Info(&Diag);

  if (Diag.SuppressAllDiagnostics)
    return false;

  assert(Diag.getClient() && "DiagnosticClient not set!");

  // Figure out the diagnostic level of this message.
  unsigned DiagID = Info.getID();
  DiagnosticIDs::Level DiagLevel
    = getDiagnosticLevel(DiagID, Info.getLocation(), Diag);

  if (DiagLevel != DiagnosticIDs::Note) {
    // Record that a fatal error occurred only when we see a second
    // non-note diagnostic. This allows notes to be attached to the
    // fatal error, but suppresses any diagnostics that follow those
    // notes.
    if (Diag.LastDiagLevel == DiagnosticIDs::Fatal)
      Diag.FatalErrorOccurred = true;

    Diag.LastDiagLevel = DiagLevel;
  }

  // Update counts for DiagnosticErrorTrap even if a fatal error occurred.
  if (DiagLevel >= DiagnosticIDs::Error) {
    ++Diag.TrapNumErrorsOccurred;
    if (isUnrecoverable(DiagID))
      ++Diag.TrapNumUnrecoverableErrorsOccurred;
  }

  // If a fatal error has already been emitted, silence all subsequent
  // diagnostics.
  if (Diag.FatalErrorOccurred) {
    if (DiagLevel >= DiagnosticIDs::Error &&
        Diag.Client->IncludeInDiagnosticCounts()) {
      ++Diag.NumErrors;
      ++Diag.NumErrorsSuppressed;
    }

    return false;
  }

  // If the client doesn't care about this message, don't issue it.  If this is
  // a note and the last real diagnostic was ignored, ignore it too.
  if (DiagLevel == DiagnosticIDs::Ignored ||
      (DiagLevel == DiagnosticIDs::Note &&
       Diag.LastDiagLevel == DiagnosticIDs::Ignored))
    return false;

  if (DiagLevel >= DiagnosticIDs::Error) {
    if (isUnrecoverable(DiagID))
      Diag.UnrecoverableErrorOccurred = true;

    // Warnings which have been upgraded to errors do not prevent compilation.
    if (isDefaultMappingAsError(DiagID))
      Diag.UncompilableErrorOccurred = true;

    Diag.ErrorOccurred = true;
    if (Diag.Client->IncludeInDiagnosticCounts()) {
      ++Diag.NumErrors;
    }

    // If we've emitted a lot of errors, emit a fatal error instead of it to 
    // stop a flood of bogus errors.
    if (Diag.ErrorLimit && Diag.NumErrors > Diag.ErrorLimit &&
        DiagLevel == DiagnosticIDs::Error) {
      Diag.SetDelayedDiagnostic(diag::fatal_too_many_errors);
      return false;
    }
  }

  // Finally, report it.
  EmitDiag(Diag, DiagLevel);
  return true;
}

/// ProcessDiag - This is the method used to report a diagnostic that is
/// finally fully formed.
bool DiagnosticIDs::ProcessDiag(DiagnosticsEngine &Diag) const {
  Diagnostic Info(&Diag);

  if (Diag.SuppressAllDiagnostics)
    return false;

  assert(Diag.getClient() && "DiagnosticClient not set!");

  // Figure out the diagnostic level of this message.
  DiagnosticIDs::Level DiagLevel;
  unsigned DiagID = Info.getID();

  if (DiagID >= diag::DIAG_UPPER_LIMIT) {
    // Handle custom diagnostics, which cannot be mapped.
    DiagLevel = CustomDiagInfo->getLevel(DiagID);
  } else {
    // Get the class of the diagnostic.  If this is a NOTE, map it onto whatever
    // the diagnostic level was for the previous diagnostic so that it is
    // filtered the same as the previous diagnostic.
    unsigned DiagClass = getBuiltinDiagClass(DiagID);
    if (DiagClass == CLASS_NOTE) {
      DiagLevel = DiagnosticIDs::Note;
    } else {
      DiagLevel = getDiagnosticLevel(DiagID, DiagClass, Info.getLocation(),
                                     Diag);
    }
  }

  if (DiagLevel != DiagnosticIDs::Note) {
    // Record that a fatal error occurred only when we see a second
    // non-note diagnostic. This allows notes to be attached to the
    // fatal error, but suppresses any diagnostics that follow those
    // notes.
    if (Diag.LastDiagLevel == DiagnosticIDs::Fatal)
      Diag.FatalErrorOccurred = true;

    Diag.LastDiagLevel = DiagLevel;
  }

  // Update counts for DiagnosticErrorTrap even if a fatal error occurred.
  if (DiagLevel >= DiagnosticIDs::Error) {
    ++Diag.TrapNumErrorsOccurred;
    if (isUnrecoverable(DiagID))
      ++Diag.TrapNumUnrecoverableErrorsOccurred;
  }

  // If a fatal error has already been emitted, silence all subsequent
  // diagnostics.
  if (Diag.FatalErrorOccurred) {
    if (DiagLevel >= DiagnosticIDs::Error &&
        Diag.Client->IncludeInDiagnosticCounts()) {
      ++Diag.NumErrors;
      ++Diag.NumErrorsSuppressed;
    }

    return false;
  }

  // If the client doesn't care about this message, don't issue it.  If this is
  // a note and the last real diagnostic was ignored, ignore it too.
  if (DiagLevel == DiagnosticIDs::Ignored ||
      (DiagLevel == DiagnosticIDs::Note &&
       Diag.LastDiagLevel == DiagnosticIDs::Ignored))
    return false;

  if (DiagLevel >= DiagnosticIDs::Error) {
    if (isUnrecoverable(DiagID))
      Diag.UnrecoverableErrorOccurred = true;
    
    if (Diag.Client->IncludeInDiagnosticCounts()) {
      Diag.ErrorOccurred = true;
      ++Diag.NumErrors;
    }

    // If we've emitted a lot of errors, emit a fatal error instead of it to 
    // stop a flood of bogus errors.
    if (Diag.ErrorLimit && Diag.NumErrors > Diag.ErrorLimit &&
        DiagLevel == DiagnosticIDs::Error) {
      Diag.SetDelayedDiagnostic(diag::fatal_too_many_errors);
      return false;
    }
  }

  // If we have any Fix-Its, make sure that all of the Fix-Its point into
  // source locations that aren't macro expansions. If any point into macro
  // expansions, remove all of the Fix-Its.
  for (unsigned I = 0, N = Diag.NumFixItHints; I != N; ++I) {
    const FixItHint &FixIt = Diag.FixItHints[I];
    if (FixIt.RemoveRange.isInvalid() ||
        FixIt.RemoveRange.getBegin().isMacroID() ||
        FixIt.RemoveRange.getEnd().isMacroID()) {
      Diag.NumFixItHints = 0;
      break;
    }    
  }
  
  // Finally, report it.
  Diag.Client->HandleDiagnostic((DiagnosticsEngine::Level)DiagLevel, Info);
//.........这里部分代码省略.........