Fix <rdar://problem/6505139> [clang on growl]: need to allow unnamed selectors as the first argument

llvm-svn: 64320

clang/lib/Parse/ParseObjc.cpp

@@ -687,7 +687,8 @@ Parser::DeclTy *Parser::ParseObjCMethodDecl(SourceLocation mLoc,
   SourceLocation selLoc;
   IdentifierInfo *SelIdent = ParseObjCSelector(selLoc);
 
-  if (!SelIdent) { // missing selector name.
+  // An unnamed colon is valid.
+  if (!SelIdent && Tok.isNot(tok::colon)) { // missing selector name.
     Diag(Tok, diag::err_expected_selector_for_method)
       << SourceRange(mLoc, Tok.getLocation());
     // Skip until we get a ; or {}.

clang/test/SemaObjC/selector-1.m

@@ -1,5 +1,13 @@
 // RUN: clang -verify %s 
 
+@interface Lancelot @end
+@implementation Lancelot
+
+- (void):(int)x {}
+- (void)xx:(int)x :(int)y { }
+
+@end
+
 int main() {
  SEL s = @selector(retain);
  SEL s1 = @selector(meth1:);