Vendor import of clang trunk r126079:

http://llvm.org/svn/llvm-project/cfe/trunk@126079

1 files changed, 586 insertions, 0 deletions

diff --git a/lib/Basic/DiagnosticIDs.cpp b/lib/Basic/DiagnosticIDs.cpp
new file mode 100644
index 0000000..8725e7f
--- /dev/null
+++ b/lib/Basic/DiagnosticIDs.cpp
@@ -0,0 +1,586 @@
+//===--- DiagnosticIDs.cpp - Diagnostic IDs Handling ----------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  This file implements the Diagnostic IDs-related interfaces.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/AST/ASTDiagnostic.h"
+#include "clang/Analysis/AnalysisDiagnostic.h"
+#include "clang/Basic/DiagnosticIDs.h"
+#include "clang/Basic/SourceManager.h"
+#include "clang/Driver/DriverDiagnostic.h"
+#include "clang/Frontend/FrontendDiagnostic.h"
+#include "clang/Lex/LexDiagnostic.h"
+#include "clang/Parse/ParseDiagnostic.h"
+#include "clang/Sema/SemaDiagnostic.h"
+
+#include <map>
+using namespace clang;
+
+//===----------------------------------------------------------------------===//
+// Builtin Diagnostic information
+//===----------------------------------------------------------------------===//
+
+namespace {
+
+// Diagnostic classes.
+enum {
+  CLASS_NOTE       = 0x01,
+  CLASS_WARNING    = 0x02,
+  CLASS_EXTENSION  = 0x03,
+  CLASS_ERROR      = 0x04
+};
+
+struct StaticDiagInfoRec {
+  unsigned short DiagID;
+  unsigned Mapping : 3;
+  unsigned Class : 3;
+  unsigned SFINAE : 1;
+  unsigned AccessControl : 1;
+  unsigned Category : 5;
+  
+  const char *Description;
+  const char *OptionGroup;
+
+  bool operator<(const StaticDiagInfoRec &RHS) const {
+    return DiagID < RHS.DiagID;
+  }
+};
+
+}
+
+static const StaticDiagInfoRec StaticDiagInfo[] = {
+#define DIAG(ENUM,CLASS,DEFAULT_MAPPING,DESC,GROUP,SFINAE,ACCESS,CATEGORY)    \
+  { diag::ENUM, DEFAULT_MAPPING, CLASS, SFINAE, ACCESS, CATEGORY, DESC, GROUP },
+#include "clang/Basic/DiagnosticCommonKinds.inc"
+#include "clang/Basic/DiagnosticDriverKinds.inc"
+#include "clang/Basic/DiagnosticFrontendKinds.inc"
+#include "clang/Basic/DiagnosticLexKinds.inc"
+#include "clang/Basic/DiagnosticParseKinds.inc"
+#include "clang/Basic/DiagnosticASTKinds.inc"
+#include "clang/Basic/DiagnosticSemaKinds.inc"
+#include "clang/Basic/DiagnosticAnalysisKinds.inc"
+  { 0, 0, 0, 0, 0, 0, 0, 0}
+};
+#undef DIAG
+
+/// GetDiagInfo - Return the StaticDiagInfoRec entry for the specified DiagID,
+/// or null if the ID is invalid.
+static const StaticDiagInfoRec *GetDiagInfo(unsigned DiagID) {
+  unsigned NumDiagEntries = sizeof(StaticDiagInfo)/sizeof(StaticDiagInfo[0])-1;
+
+  // If assertions are enabled, verify that the StaticDiagInfo array is sorted.
+#ifndef NDEBUG
+  static bool IsFirst = true;
+  if (IsFirst) {
+    for (unsigned i = 1; i != NumDiagEntries; ++i) {
+      assert(StaticDiagInfo[i-1].DiagID != StaticDiagInfo[i].DiagID &&
+             "Diag ID conflict, the enums at the start of clang::diag (in "
+             "DiagnosticIDs.h) probably need to be increased");
+
+      assert(StaticDiagInfo[i-1] < StaticDiagInfo[i] &&
+             "Improperly sorted diag info");
+    }
+    IsFirst = false;
+  }
+#endif
+
+  // Search the diagnostic table with a binary search.
+  StaticDiagInfoRec Find = { DiagID, 0, 0, 0, 0, 0, 0, 0 };
+
+  const StaticDiagInfoRec *Found =
+    std::lower_bound(StaticDiagInfo, StaticDiagInfo + NumDiagEntries, Find);
+  if (Found == StaticDiagInfo + NumDiagEntries ||
+      Found->DiagID != DiagID)
+    return 0;
+
+  return Found;
+}
+
+static unsigned GetDefaultDiagMapping(unsigned DiagID) {
+  if (const StaticDiagInfoRec *Info = GetDiagInfo(DiagID))
+    return Info->Mapping;
+  return diag::MAP_FATAL;
+}
+
+/// getWarningOptionForDiag - Return the lowest-level warning option that
+/// enables the specified diagnostic.  If there is no -Wfoo flag that controls
+/// the diagnostic, this returns null.
+const char *DiagnosticIDs::getWarningOptionForDiag(unsigned DiagID) {
+  if (const StaticDiagInfoRec *Info = GetDiagInfo(DiagID))
+    return Info->OptionGroup;
+  return 0;
+}
+
+/// getWarningOptionForDiag - Return the category number that a specified
+/// DiagID belongs to, or 0 if no category.
+unsigned DiagnosticIDs::getCategoryNumberForDiag(unsigned DiagID) {
+  if (const StaticDiagInfoRec *Info = GetDiagInfo(DiagID))
+    return Info->Category;
+  return 0;
+}
+
+/// getCategoryNameFromID - Given a category ID, return the name of the
+/// category, an empty string if CategoryID is zero, or null if CategoryID is
+/// invalid.
+const char *DiagnosticIDs::getCategoryNameFromID(unsigned CategoryID) {
+  // Second the table of options, sorted by name for fast binary lookup.
+  static const char *CategoryNameTable[] = {
+#define GET_CATEGORY_TABLE
+#define CATEGORY(X) X,
+#include "clang/Basic/DiagnosticGroups.inc"
+#undef GET_CATEGORY_TABLE
+    "<<END>>"
+  };
+  static const size_t CategoryNameTableSize =
+    sizeof(CategoryNameTable) / sizeof(CategoryNameTable[0])-1;
+  
+  if (CategoryID >= CategoryNameTableSize) return 0;
+  return CategoryNameTable[CategoryID];
+}
+
+
+
+DiagnosticIDs::SFINAEResponse 
+DiagnosticIDs::getDiagnosticSFINAEResponse(unsigned DiagID) {
+  if (const StaticDiagInfoRec *Info = GetDiagInfo(DiagID)) {
+    if (Info->AccessControl)
+      return SFINAE_AccessControl;
+    
+    if (!Info->SFINAE)
+      return SFINAE_Report;
+
+    if (Info->Class == CLASS_ERROR)
+      return SFINAE_SubstitutionFailure;
+    
+    // Suppress notes, warnings, and extensions;
+    return SFINAE_Suppress;
+  }
+  
+  return SFINAE_Report;
+}
+
+/// getDiagClass - Return the class field of the diagnostic.
+///
+static unsigned getBuiltinDiagClass(unsigned DiagID) {
+  if (const StaticDiagInfoRec *Info = GetDiagInfo(DiagID))
+    return Info->Class;
+  return ~0U;
+}
+
+//===----------------------------------------------------------------------===//
+// Custom Diagnostic information
+//===----------------------------------------------------------------------===//
+
+namespace clang {
+  namespace diag {
+    class CustomDiagInfo {
+      typedef std::pair<DiagnosticIDs::Level, std::string> DiagDesc;
+      std::vector<DiagDesc> DiagInfo;
+      std::map<DiagDesc, unsigned> DiagIDs;
+    public:
+
+      /// getDescription - Return the description of the specified custom
+      /// diagnostic.
+      const char *getDescription(unsigned DiagID) const {
+        assert(this && DiagID-DIAG_UPPER_LIMIT < DiagInfo.size() &&
+               "Invalid diagnosic ID");
+        return DiagInfo[DiagID-DIAG_UPPER_LIMIT].second.c_str();
+      }
+
+      /// getLevel - Return the level of the specified custom diagnostic.
+      DiagnosticIDs::Level getLevel(unsigned DiagID) const {
+        assert(this && DiagID-DIAG_UPPER_LIMIT < DiagInfo.size() &&
+               "Invalid diagnosic ID");
+        return DiagInfo[DiagID-DIAG_UPPER_LIMIT].first;
+      }
+
+      unsigned getOrCreateDiagID(DiagnosticIDs::Level L, llvm::StringRef Message,
+                                 DiagnosticIDs &Diags) {
+        DiagDesc D(L, Message);
+        // Check to see if it already exists.
+        std::map<DiagDesc, unsigned>::iterator I = DiagIDs.lower_bound(D);
+        if (I != DiagIDs.end() && I->first == D)
+          return I->second;
+
+        // If not, assign a new ID.
+        unsigned ID = DiagInfo.size()+DIAG_UPPER_LIMIT;
+        DiagIDs.insert(std::make_pair(D, ID));
+        DiagInfo.push_back(D);
+        return ID;
+      }
+    };
+
+  } // end diag namespace
+} // end clang namespace
+
+
+//===----------------------------------------------------------------------===//
+// Common Diagnostic implementation
+//===----------------------------------------------------------------------===//
+
+DiagnosticIDs::DiagnosticIDs() {
+  CustomDiagInfo = 0;
+}
+
+DiagnosticIDs::~DiagnosticIDs() {
+  delete CustomDiagInfo;
+}
+
+/// getCustomDiagID - Return an ID for a diagnostic with the specified message
+/// and level.  If this is the first request for this diagnosic, it is
+/// registered and created, otherwise the existing ID is returned.
+unsigned DiagnosticIDs::getCustomDiagID(Level L, llvm::StringRef Message) {
+  if (CustomDiagInfo == 0)
+    CustomDiagInfo = new diag::CustomDiagInfo();
+  return CustomDiagInfo->getOrCreateDiagID(L, Message, *this);
+}
+
+
+/// isBuiltinWarningOrExtension - Return true if the unmapped diagnostic
+/// level of the specified diagnostic ID is a Warning or Extension.
+/// This only works on builtin diagnostics, not custom ones, and is not legal to
+/// call on NOTEs.
+bool DiagnosticIDs::isBuiltinWarningOrExtension(unsigned DiagID) {
+  return DiagID < diag::DIAG_UPPER_LIMIT &&
+         getBuiltinDiagClass(DiagID) != CLASS_ERROR;
+}
+
+/// \brief Determine whether the given built-in diagnostic ID is a
+/// Note.
+bool DiagnosticIDs::isBuiltinNote(unsigned DiagID) {
+  return DiagID < diag::DIAG_UPPER_LIMIT &&
+    getBuiltinDiagClass(DiagID) == CLASS_NOTE;
+}
+
+/// isBuiltinExtensionDiag - Determine whether the given built-in diagnostic
+/// ID is for an extension of some sort.  This also returns EnabledByDefault,
+/// which is set to indicate whether the diagnostic is ignored by default (in
+/// which case -pedantic enables it) or treated as a warning/error by default.
+///
+bool DiagnosticIDs::isBuiltinExtensionDiag(unsigned DiagID,
+                                        bool &EnabledByDefault) {
+  if (DiagID >= diag::DIAG_UPPER_LIMIT ||
+      getBuiltinDiagClass(DiagID) != CLASS_EXTENSION)
+    return false;
+  
+  EnabledByDefault = GetDefaultDiagMapping(DiagID) != diag::MAP_IGNORE;
+  return true;
+}
+
+/// getDescription - Given a diagnostic ID, return a description of the
+/// issue.
+const char *DiagnosticIDs::getDescription(unsigned DiagID) const {
+  if (const StaticDiagInfoRec *Info = GetDiagInfo(DiagID))
+    return Info->Description;
+  return CustomDiagInfo->getDescription(DiagID);
+}
+
+/// getDiagnosticLevel - Based on the way the client configured the Diagnostic
+/// object, classify the specified diagnostic ID into a Level, consumable by
+/// the DiagnosticClient.
+DiagnosticIDs::Level
+DiagnosticIDs::getDiagnosticLevel(unsigned DiagID, SourceLocation Loc,
+                                  const Diagnostic &Diag) const {
+  // Handle custom diagnostics, which cannot be mapped.
+  if (DiagID >= diag::DIAG_UPPER_LIMIT)
+    return CustomDiagInfo->getLevel(DiagID);
+
+  unsigned DiagClass = getBuiltinDiagClass(DiagID);
+  assert(DiagClass != CLASS_NOTE && "Cannot get diagnostic level of a note!");
+  return getDiagnosticLevel(DiagID, DiagClass, Loc, Diag);
+}
+
+/// \brief Based on the way the client configured the Diagnostic
+/// object, classify the specified diagnostic ID into a Level, consumable by
+/// the DiagnosticClient.
+///
+/// \param Loc The source location we are interested in finding out the
+/// diagnostic state. Can be null in order to query the latest state.
+DiagnosticIDs::Level
+DiagnosticIDs::getDiagnosticLevel(unsigned DiagID, unsigned DiagClass,
+                                  SourceLocation Loc,
+                                  const Diagnostic &Diag) const {
+  // Specific non-error diagnostics may be mapped to various levels from ignored
+  // to error.  Errors can only be mapped to fatal.
+  DiagnosticIDs::Level Result = DiagnosticIDs::Fatal;
+
+  Diagnostic::DiagStatePointsTy::iterator
+    Pos = Diag.GetDiagStatePointForLoc(Loc);
+  Diagnostic::DiagState *State = Pos->State;
+
+  // Get the mapping information, if unset, compute it lazily.
+  unsigned MappingInfo = Diag.getDiagnosticMappingInfo((diag::kind)DiagID,
+                                                       State);
+  if (MappingInfo == 0) {
+    MappingInfo = GetDefaultDiagMapping(DiagID);
+    Diag.setDiagnosticMappingInternal(DiagID, MappingInfo, State, false, false);
+  }
+
+  switch (MappingInfo & 7) {
+  default: assert(0 && "Unknown mapping!");
+  case diag::MAP_IGNORE:
+    // Ignore this, unless this is an extension diagnostic and we're mapping
+    // them onto warnings or errors.
+    if (!isBuiltinExtensionDiag(DiagID) ||  // Not an extension
+        Diag.ExtBehavior == Diagnostic::Ext_Ignore || // Ext ignored
+        (MappingInfo & 8) != 0)             // User explicitly mapped it.
+      return DiagnosticIDs::Ignored;
+    Result = DiagnosticIDs::Warning;
+    if (Diag.ExtBehavior == Diagnostic::Ext_Error) Result = DiagnosticIDs::Error;
+    if (Result == DiagnosticIDs::Error && Diag.ErrorsAsFatal)
+      Result = DiagnosticIDs::Fatal;
+    break;
+  case diag::MAP_ERROR:
+    Result = DiagnosticIDs::Error;
+    if (Diag.ErrorsAsFatal)
+      Result = DiagnosticIDs::Fatal;
+    break;
+  case diag::MAP_FATAL:
+    Result = DiagnosticIDs::Fatal;
+    break;
+  case diag::MAP_WARNING:
+    // If warnings are globally mapped to ignore or error, do it.
+    if (Diag.IgnoreAllWarnings)
+      return DiagnosticIDs::Ignored;
+
+    Result = DiagnosticIDs::Warning;
+
+    // If this is an extension diagnostic and we're in -pedantic-error mode, and
+    // if the user didn't explicitly map it, upgrade to an error.
+    if (Diag.ExtBehavior == Diagnostic::Ext_Error &&
+        (MappingInfo & 8) == 0 &&
+        isBuiltinExtensionDiag(DiagID))
+      Result = DiagnosticIDs::Error;
+
+    if (Diag.WarningsAsErrors)
+      Result = DiagnosticIDs::Error;
+    if (Result == DiagnosticIDs::Error && Diag.ErrorsAsFatal)
+      Result = DiagnosticIDs::Fatal;
+    break;
+
+  case diag::MAP_WARNING_NO_WERROR:
+    // Diagnostics specified with -Wno-error=foo should be set to warnings, but
+    // not be adjusted by -Werror or -pedantic-errors.
+    Result = DiagnosticIDs::Warning;
+
+    // If warnings are globally mapped to ignore or error, do it.
+    if (Diag.IgnoreAllWarnings)
+      return DiagnosticIDs::Ignored;
+
+    break;
+
+  case diag::MAP_ERROR_NO_WFATAL:
+    // Diagnostics specified as -Wno-fatal-error=foo should be errors, but
+    // unaffected by -Wfatal-errors.
+    Result = DiagnosticIDs::Error;
+    break;
+  }
+
+  // Okay, we're about to return this as a "diagnostic to emit" one last check:
+  // if this is any sort of extension warning, and if we're in an __extension__
+  // block, silence it.
+  if (Diag.AllExtensionsSilenced && isBuiltinExtensionDiag(DiagID))
+    return DiagnosticIDs::Ignored;
+
+  return Result;
+}
+
+struct WarningOption {
+  const char  *Name;
+  const short *Members;
+  const short *SubGroups;
+};
+
+#define GET_DIAG_ARRAYS
+#include "clang/Basic/DiagnosticGroups.inc"
+#undef GET_DIAG_ARRAYS
+
+// Second the table of options, sorted by name for fast binary lookup.
+static const WarningOption OptionTable[] = {
+#define GET_DIAG_TABLE
+#include "clang/Basic/DiagnosticGroups.inc"
+#undef GET_DIAG_TABLE
+};
+static const size_t OptionTableSize =
+sizeof(OptionTable) / sizeof(OptionTable[0]);
+
+static bool WarningOptionCompare(const WarningOption &LHS,
+                                 const WarningOption &RHS) {
+  return strcmp(LHS.Name, RHS.Name) < 0;
+}
+
+static void MapGroupMembers(const WarningOption *Group, diag::Mapping Mapping,
+                            SourceLocation Loc, Diagnostic &Diag) {
+  // Option exists, poke all the members of its diagnostic set.
+  if (const short *Member = Group->Members) {
+    for (; *Member != -1; ++Member)
+      Diag.setDiagnosticMapping(*Member, Mapping, Loc);
+  }
+
+  // Enable/disable all subgroups along with this one.
+  if (const short *SubGroups = Group->SubGroups) {
+    for (; *SubGroups != (short)-1; ++SubGroups)
+      MapGroupMembers(&OptionTable[(short)*SubGroups], Mapping, Loc, Diag);
+  }
+}
+
+/// setDiagnosticGroupMapping - Change an entire diagnostic group (e.g.
+/// "unknown-pragmas" to have the specified mapping.  This returns true and
+/// ignores the request if "Group" was unknown, false otherwise.
+bool DiagnosticIDs::setDiagnosticGroupMapping(const char *Group,
+                                           diag::Mapping Map,
+                                           SourceLocation Loc,
+                                           Diagnostic &Diag) const {
+  assert((Loc.isValid() ||
+          Diag.DiagStatePoints.empty() ||
+          Diag.DiagStatePoints.back().Loc.isInvalid()) &&
+         "Loc should be invalid only when the mapping comes from command-line");
+  assert((Loc.isInvalid() || Diag.DiagStatePoints.empty() ||
+          Diag.DiagStatePoints.back().Loc.isInvalid() ||
+          !Diag.SourceMgr->isBeforeInTranslationUnit(Loc,
+                                            Diag.DiagStatePoints.back().Loc)) &&
+         "Source location of new mapping is before the previous one!");
+
+  WarningOption Key = { Group, 0, 0 };
+  const WarningOption *Found =
+  std::lower_bound(OptionTable, OptionTable + OptionTableSize, Key,
+                   WarningOptionCompare);
+  if (Found == OptionTable + OptionTableSize ||
+      strcmp(Found->Name, Group) != 0)
+    return true;  // Option not found.
+
+  MapGroupMembers(Found, Map, Loc, Diag);
+  return false;
+}
+
+/// ProcessDiag - This is the method used to report a diagnostic that is
+/// finally fully formed.
+bool DiagnosticIDs::ProcessDiag(Diagnostic &Diag) const {
+  DiagnosticInfo 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();
+
+  // ShouldEmitInSystemHeader - True if this diagnostic should be produced even
+  // in a system header.
+  bool ShouldEmitInSystemHeader;
+
+  if (DiagID >= diag::DIAG_UPPER_LIMIT) {
+    // Handle custom diagnostics, which cannot be mapped.
+    DiagLevel = CustomDiagInfo->getLevel(DiagID);
+
+    // Custom diagnostics always are emitted in system headers.
+    ShouldEmitInSystemHeader = true;
+  } 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;
+      ShouldEmitInSystemHeader = false;  // extra consideration is needed
+    } else {
+      // If this is not an error and we are in a system header, we ignore it.
+      // Check the original Diag ID here, because we also want to ignore
+      // extensions and warnings in -Werror and -pedantic-errors modes, which
+      // *map* warnings/extensions to errors.
+      ShouldEmitInSystemHeader = DiagClass == CLASS_ERROR;
+
+      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;
+  }
+
+  // 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 this diagnostic is in a system header and is not a clang error, suppress
+  // it.
+  if (Diag.SuppressSystemWarnings && !ShouldEmitInSystemHeader &&
+      Info.getLocation().isValid() &&
+      Diag.getSourceManager().isInSystemHeader(
+          Diag.getSourceManager().getInstantiationLoc(Info.getLocation())) &&
+      (DiagLevel != DiagnosticIDs::Note ||
+       Diag.LastDiagLevel == DiagnosticIDs::Ignored)) {
+    Diag.LastDiagLevel = DiagnosticIDs::Ignored;
+    return false;
+  }
+
+  if (DiagLevel >= DiagnosticIDs::Error) {
+    if (Diag.Client->IncludeInDiagnosticCounts()) {
+      Diag.ErrorOccurred = true;
+      ++Diag.NumErrors;
+    }
+
+    // If we've emitted a lot of errors, emit a fatal error after 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);
+  }
+
+  // If we have any Fix-Its, make sure that all of the Fix-Its point into
+  // source locations that aren't macro instantiations. If any point into
+  // macro instantiations, 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((Diagnostic::Level)DiagLevel, Info);
+  if (Diag.Client->IncludeInDiagnosticCounts()) {
+    if (DiagLevel == DiagnosticIDs::Warning)
+      ++Diag.NumWarnings;
+  }
+
+  Diag.CurDiagID = ~0U;
+
+  return true;
+}