22   SourceLocation Loc;  member
38   void If(SourceLocation Loc, SourceRange ConditionRange,  in If()  argument
43     CheckMacroRedundancy(Loc, Condition, IfStack, DK_If, DK_If, true);  in If()
46   void Ifdef(SourceLocation Loc, const Token &MacroNameTok,  in Ifdef()  argument
49     CheckMacroRedundancy(Loc, MacroName, IfdefStack, DK_Ifdef, DK_Ifdef, true);  in Ifdef()
50     CheckMacroRedundancy(Loc, MacroName, IfndefStack, DK_Ifdef, DK_Ifndef,  in Ifdef()
54   void Ifndef(SourceLocation Loc, const Token &MacroNameTok,  in Ifndef()  argument
57     CheckMacroRedundancy(Loc, MacroName, IfndefStack, DK_Ifndef, DK_Ifndef,  in Ifndef()
59     CheckMacroRedundancy(Loc, MacroName, IfdefStack, DK_Ifndef, DK_Ifdef,  in Ifndef()
63   void Endif(SourceLocation Loc, SourceLocation IfLoc) override {  in Endif()  argument
64     if (!IfStack.empty() && IfLoc == IfStack.back().Loc)  in Endif()
66     if (!IfdefStack.empty() && IfLoc == IfdefStack.back().Loc)  in Endif()
68     if (!IfndefStack.empty() && IfLoc == IfndefStack.back().Loc)  in Endif()
73   void CheckMacroRedundancy(SourceLocation Loc, StringRef MacroName,  in CheckMacroRedundancy()  argument
77     if (PP.getSourceManager().isInMainFile(Loc)) {  in CheckMacroRedundancy()
80           Check.diag(Loc, WarningDescription) << WarningKind;  in CheckMacroRedundancy()
81           Check.diag(Entry.Loc, NoteDescription, DiagnosticIDs::Note)  in CheckMacroRedundancy()
89       Stack.push_back({Loc, std::string(MacroName)});  in CheckMacroRedundancy()