parse.y (bad_decl, [...]): New nonterminals.

	* parse.y (bad_decl, template_arg_list_ignore, arg_list_ignore):
	New nonterminals.
	(data_def, component_decl): Add reductions to bad_decl.

Co-Authored-By: Joe Buck <jbuck@synopsys.com>

From-SVN: r40752

gcc/cp/ChangeLog

+2001-03-22  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>
+            based on an idea from Joe Buck <jbuck@synopsys.com>
+
+	* parse.y (bad_decl, template_arg_list_ignore, arg_list_ignore):
+	New nonterminals.
+	(data_def, component_decl): Add reductions to bad_decl.
+
 2001-03-22  Jakub Jelinek  <jakub@redhat.com>
 
 	* method.c (do_build_assign_ref): Don't use build_modify_expr for

gcc/cp/parse.y

@@ -733,6 +733,7 @@ datadef:
 	| error ';'
 	| error '}'
 	| ';'
+	| bad_decl
 	;
 
 ctor_initializer_opt:
@@ -2590,6 +2591,8 @@ component_decl:
 		  $$ = finish_member_class_template ($2.t); 
 		  finish_template_decl ($1);
 		}
+	| bad_decl
+		{ $$ = NULL_TREE; }
 	;
 
 component_decl_1:
@@ -3761,6 +3764,26 @@ bad_parm:
 		}
 	;
 
+bad_decl:
+          IDENTIFIER template_arg_list_ignore IDENTIFIER arg_list_ignore ';'
+		{
+                  cp_error("'%D' is used as a type, but is not defined as a type.", $1);
+                  $3 = error_mark_node;
+		}
+        ;
+
+template_arg_list_ignore:
+          '<' template_arg_list_opt template_close_bracket
+		{ }
+	| /* empty */
+	;
+
+arg_list_ignore:
+          '(' nonnull_exprlist ')'
+		{ }
+	| /* empty */
+	;
+
 exception_specification_opt:
 	  /* empty */  %prec EMPTY
 		{ $$ = NULL_TREE; }