Get rid of handling of the 'explicit' keyword from class-head. We still parse it though, although that will change shortly.

llvm-svn: 128277

clang/include/clang/Basic/Attr.td

@@ -245,10 +245,6 @@ def DLLImport : InheritableAttr {
   let Spellings = ["dllimport"];
 }
 
-def Explicit : InheritableAttr {
-  let Spellings = [];
-}
-
 def FastCall : InheritableAttr {
   let Spellings = ["fastcall", "__fastcall"];
 }

clang/include/clang/Basic/DiagnosticSemaKinds.td

@@ -967,9 +967,6 @@ def err_final_function_overridden : Error<
 def err_final_base : Error<
   "derivation from 'final' %0">;
 
-def err_function_overriding_without_override : Error<
-  "%0 overrides function%s1 without being marked 'override'">;
-
 // C++0x scoped enumerations
 def err_enum_invalid_underlying : Error<
   "non-integral type %0 is an invalid underlying type">;

clang/include/clang/Sema/Sema.h

@@ -999,7 +999,7 @@ public:
   /// C++ record definition's base-specifiers clause and are starting its
   /// member declarations.
   void ActOnStartCXXMemberDeclarations(Scope *S, Decl *TagDecl,
-                                       ClassVirtSpecifiers &CVS,
+                                       SourceLocation FinalLoc,
                                        SourceLocation LBraceLoc);
 
   /// ActOnTagFinishDefinition - Invoked once we have finished parsing

clang/lib/Parse/ParseDeclCXX.cpp

@@ -1777,8 +1777,11 @@ void Parser::ParseCXXMemberSpecification(SourceLocation RecordLoc,
 
   SourceLocation LBraceLoc = ConsumeBrace();
 
+  SourceLocation FinalLoc = 
+    CVS.isFinalSpecified() ? CVS.getFinalLoc() : SourceLocation();
+
   if (TagDecl)
-    Actions.ActOnStartCXXMemberDeclarations(getCurScope(), TagDecl, CVS,
+    Actions.ActOnStartCXXMemberDeclarations(getCurScope(), TagDecl, FinalLoc,
                                             LBraceLoc);
 
   // C++ 11p3: Members of a class defined with the keyword class are private

clang/lib/Sema/SemaDecl.cpp

@@ -6714,7 +6714,7 @@ void Sema::ActOnTagStartDefinition(Scope *S, Decl *TagD) {
 }
 
 void Sema::ActOnStartCXXMemberDeclarations(Scope *S, Decl *TagD,
-                                           ClassVirtSpecifiers &CVS,
+                                           SourceLocation FinalLoc,
                                            SourceLocation LBraceLoc) {
   AdjustDeclIfTemplate(TagD);
   CXXRecordDecl *Record = cast<CXXRecordDecl>(TagD);
@@ -6724,10 +6724,8 @@ void Sema::ActOnStartCXXMemberDeclarations(Scope *S, Decl *TagD,
   if (!Record->getIdentifier())
     return;
 
-  if (CVS.isFinalSpecified())
-    Record->addAttr(new (Context) FinalAttr(CVS.getFinalLoc(), Context));
-  if (CVS.isExplicitSpecified())
-    Record->addAttr(new (Context) ExplicitAttr(CVS.getExplicitLoc(), Context));
+  if (FinalLoc.isValid())
+    Record->addAttr(new (Context) FinalAttr(FinalLoc, Context));
     
   // C++ [class]p2:
   //   [...] The class-name is also inserted into the scope of the

clang/lib/Sema/SemaDeclCXX.cpp

@@ -919,26 +919,6 @@ void Sema::CheckOverrideControl(const Decl *D) {
       << MD->getDeclName();
     return;
   }
-
-  // C++0x [class.derived]p8:
-  //   In a class definition marked with the class-virt-specifier explicit,
-  //   if a virtual member function that is neither implicitly-declared nor a 
-  //   destructor overrides a member function of a base class and it is not
-  //   marked with the virt-specifier override, the program is ill-formed.
-  if (MD->getParent()->hasAttr<ExplicitAttr>() && !isa<CXXDestructorDecl>(MD) &&
-      HasOverriddenMethods && !MD->hasAttr<OverrideAttr>()) {
-    llvm::SmallVector<const CXXMethodDecl*, 4> 
-      OverriddenMethods(MD->begin_overridden_methods(), 
-                        MD->end_overridden_methods());
-
-    Diag(MD->getLocation(), diag::err_function_overriding_without_override)
-      << MD->getDeclName() 
-      << (unsigned)OverriddenMethods.size();
-
-    for (unsigned I = 0; I != OverriddenMethods.size(); ++I)
-      Diag(OverriddenMethods[I]->getLocation(),
-           diag::note_overridden_virtual_function);
-  }
 }
 
 /// CheckIfOverriddenFunctionIsMarkedFinal - Checks whether a virtual member 

clang/test/CXX/class.derived/p8-0x.cpp

@@ -1,22 +0,0 @@
-// RUN: %clang_cc1 %s -fsyntax-only -verify -std=c++0x
-
-namespace Test1 {
-
-struct A {
-  virtual void f(); // expected-note {{overridden virtual function is here}}
-};
-
-struct B explicit : A {
-  virtual void f(); // expected-error {{overrides function without being marked 'override'}}
-};
-
-struct C {
-  virtual ~C();
-};
-
-struct D explicit : C {
-  virtual ~D();
-};
-
-}
-