Don't warn if objc method param types in declaration and

implementation mismatch in their qualifiers only.
This will match similar behavior in c/c++ and
fixes radar 7211653.

llvm-svn: 89220

clang/lib/Sema/SemaDeclObjC.cpp

@@ -828,9 +828,10 @@ void Sema::WarnConflictingTypedMethods(ObjCMethodDecl *ImpMethodDecl,
   for (ObjCMethodDecl::param_iterator IM = ImpMethodDecl->param_begin(),
        IF = IntfMethodDecl->param_begin(), EM = ImpMethodDecl->param_end();
        IM != EM; ++IM, ++IF) {
-    if (Context.typesAreCompatible((*IF)->getType(), (*IM)->getType()) ||
-        Context.QualifiedIdConformsQualifiedId((*IF)->getType(),
-                                               (*IM)->getType()))
+    QualType ParmDeclTy = (*IF)->getType().getUnqualifiedType();
+    QualType ParmImpTy = (*IM)->getType().getUnqualifiedType();
+    if (Context.typesAreCompatible(ParmDeclTy, ParmImpTy) ||
+        Context.QualifiedIdConformsQualifiedId(ParmDeclTy, ParmImpTy))
       continue;
 
     Diag((*IM)->getLocation(), diag::warn_conflicting_param_types)

clang/test/SemaObjC/no-warn-qual-mismatch.m

@@ -0,0 +1,16 @@
+// RUN: clang-cc  -fsyntax-only -verify %s
+// radar 7211563
+
+@interface X
+
++ (void)prototypeWithScalar:(int)aParameter;
++ (void)prototypeWithPointer:(void *)aParameter;
+
+@end
+
+@implementation X
+
++ (void)prototypeWithScalar:(const int)aParameter {}
++ (void)prototypeWithPointer:(void * const)aParameter {}
+
+@end