re PR c++/47198 ([C++0x] ICE: tree check: expected var_decl or function_decl,…

re PR c++/47198 ([C++0x] ICE: tree check: expected var_decl or function_decl, have template_decl in check_bases_and_members, at cp/class.c:4654 on invalid code)

	PR c++/47198
	* parser.c (cp_parser_single_declaration): Just return if
	cp_parser_parse_and_diagnose_invalid_type_name complained.

From-SVN: r170847

gcc/cp/ChangeLog

+2011-03-10  Jason Merrill  <jason@redhat.com>
+
+	PR c++/47198
+	* parser.c (cp_parser_single_declaration): Just return if
+	cp_parser_parse_and_diagnose_invalid_type_name complained.
+
 2011-03-09  Jason Merrill  <jason@redhat.com>
 
 	PR c++/44629

gcc/cp/parser.c

@@ -20102,8 +20102,15 @@ cp_parser_single_declaration (cp_parser* parser,
     }
 
   /* Complain about missing 'typename' or other invalid type names.  */
-  if (!decl_specifiers.any_type_specifiers_p)
-    cp_parser_parse_and_diagnose_invalid_type_name (parser);
+  if (!decl_specifiers.any_type_specifiers_p
+      && cp_parser_parse_and_diagnose_invalid_type_name (parser))
+    {
+      /* cp_parser_parse_and_diagnose_invalid_type_name calls
+	 cp_parser_skip_to_end_of_block_or_statement, so don't try to parse
+	 the rest of this declaration.  */
+      decl = error_mark_node;
+      goto out;
+    }
 
   /* If it's not a template class, try for a template function.  If
      the next token is a `;', then this declaration does not declare
@@ -20137,6 +20144,13 @@ cp_parser_single_declaration (cp_parser* parser,
       }
     }
 
+  /* Look for a trailing `;' after the declaration.  */
+  if (!function_definition_p
+      && (decl == error_mark_node
+	  || !cp_parser_require (parser, CPP_SEMICOLON, RT_SEMICOLON)))
+    cp_parser_skip_to_end_of_block_or_statement (parser);
+
+ out:
   pop_deferring_access_checks ();
 
   /* Clear any current qualification; whatever comes next is the start
@@ -20144,11 +20158,6 @@ cp_parser_single_declaration (cp_parser* parser,
   parser->scope = NULL_TREE;
   parser->qualifying_scope = NULL_TREE;
   parser->object_scope = NULL_TREE;
-  /* Look for a trailing `;' after the declaration.  */
-  if (!function_definition_p
-      && (decl == error_mark_node
-	  || !cp_parser_require (parser, CPP_SEMICOLON, RT_SEMICOLON)))
-    cp_parser_skip_to_end_of_block_or_statement (parser);
 
   return decl;
 }

gcc/testsuite/ChangeLog

+2011-03-10  Jason Merrill  <jason@redhat.com>
+
+	* g++.dg/cpp0x/syntax-err1.C: New.
+	* g++.dg/parse/error36.C: Adjust expected errors.
+	* g++.old-deja/g++.pt/ctor2.C: Likewise.
+	* g++.old-deja/g++.pt/typename3.C: Likewise.
+	* g++.old-deja/g++.pt/typename4.C: Likewise.
+	* g++.old-deja/g++.pt/typename6.C: Likewise.
+
 2011-03-09  Jason Merrill  <jason@redhat.com>
 
 	* g++.dg/template/nontype22.C: New.

gcc/testsuite/g++.dg/cpp0x/syntax-err1.C

+// PR c++/47198
+// { dg-options -std=c++0x }
+
+struct S
+{
+  template < int > sometype foo (); // { dg-error "sometype. does not name a type" }
+  S () = default;
+};

gcc/testsuite/g++.dg/parse/error36.C

@@ -30,4 +30,3 @@ void g(const A<T>::type &t);	// { dg-error "typename" }
 
 // PR c++/18451
 template <class T> A<T>::B A<T>::b; // { dg-error "typename" }
-// { dg-error "expected" "" { target *-*-* } 32 }

gcc/testsuite/g++.old-deja/g++.pt/ctor2.C

@@ -10,4 +10,4 @@ struct A {
 template <class T>
 A<T>::A<T>()   // { dg-error "constructor|qualified name" }
 {
-} // { dg-error "end of input" }
+}

gcc/testsuite/g++.old-deja/g++.pt/typename3.C

@@ -18,4 +18,4 @@ struct B : public A<U>
 
 template <class U>
 B<U>::A_Type B<U>::Func() { // { dg-error "typename" } implicit typename
-}			    // { dg-error "expected" }
+}

gcc/testsuite/g++.old-deja/g++.pt/typename4.C

@@ -23,4 +23,4 @@ struct C : public B<U>
 
 template <class U>
 C<U>::A_Type C<U>::Func() { // { dg-error "typename" } implicit typename
-}			    // { dg-error "expected" }
+}

gcc/testsuite/g++.old-deja/g++.pt/typename6.C

@@ -17,4 +17,4 @@ struct B : public A<U>
 template <class U>
 A<U>::A_Type B<U>::Func()       // { dg-error "typename" } function
 {				
-} // { dg-error "expected" }
+}