parser.c (cp_parser_nested_name_specifier): Reset scope on failure.

cp:
	* parser.c (cp_parser_nested_name_specifier): Reset scope on
	failure.
	(cp_parser_elaborated_type_specifier): Likewise.
testsuite:
	* g++.dg/parse/crash10: New test.

From-SVN: r69702

gcc/cp/ChangeLog

+2003-07-23  Nathan Sidwell  <nathan@codesourcery.com>
+
+	PR c++/10953
+	* parser.c (cp_parser_nested_name_specifier): Reset scope on
+	failure.
+	(cp_parser_elaborated_type_specifier): Likewise.
+
 2003-07-22  Mark Mitchell  <mark@codesourcery.com>
 
 	Eliminate use of POINTER_TYPE for pointers-to-members.

gcc/cp/parser.c

@@ -3052,6 +3052,7 @@ cp_parser_nested_name_specifier (cp_parser *parser,
   if (!scope)
     {
       cp_parser_error (parser, "expected nested-name-specifier");
+      parser->scope = NULL_TREE;
       return error_mark_node;
     }
 
@@ -8439,7 +8440,10 @@ cp_parser_elaborated_type_specifier (cp_parser* parser,
       identifier = cp_parser_identifier (parser);
 
       if (identifier == error_mark_node)
+	{
+	  parser->scope = NULL_TREE;
 	  return error_mark_node;
+	}
 
       /* For a `typename', we needn't call xref_tag.  */
       if (tag_type == typename_type)

gcc/testsuite/ChangeLog

+2003-07-23  Nathan Sidwell  <nathan@codesourcery.com>
+
+	* g++.dg/parse/crash10: New test.
+
 2003-07-22  Nathan Sidwell  <nathan@codesourcery.com>
 
 	* g++.dg/ext/flexary1.C: New test.

gcc/testsuite/g++.dg/parse/crash10.C

+// { dg-do compile }
+
+// Copyright (C) 2003 Free Software Foundation, Inc.
+// Contributed by Nathan Sidwell 22 Jul 2003 <nathan@codesourcery.com>
+
+// PR c++ 10953. ICE
+
+class 
+{
+  typename::  // { dg-error "" "" }
+; // { dg-error "" "" }