+namespace_using_decl:
+ USING namespace_qualifier identifier
+ { $$ = build_parse_node (SCOPE_REF, $2, $3); }
+ | USING global_scope identifier
+ { $$ = build_parse_node (SCOPE_REF, global_namespace, $3); }
+ | USING global_scope namespace_qualifier identifier
+ { $$ = build_parse_node (SCOPE_REF, $3, $4); }
+ ;
+
+using_directive:
+ USING NAMESPACE
+ { begin_only_namespace_names (); }
+ any_id ';'
+ {
+ end_only_namespace_names ();
+ /* If no declaration was found, the using-directive is
+ invalid. Since that was not reported, we need the
+ identifier for the error message. */
+ if (TREE_CODE ($4) == IDENTIFIER_NODE && lastiddecl)
+ $4 = lastiddecl;
+ do_using_directive ($4);
+ }
+ ;
+
+namespace_qualifier:
+ NSNAME SCOPE
+ {
+ if (TREE_CODE ($$) == IDENTIFIER_NODE)
+ $$ = lastiddecl;
+ got_scope = $$;
+ }
+ | namespace_qualifier NSNAME SCOPE
+ {
+ $$ = $2;
+ if (TREE_CODE ($$) == IDENTIFIER_NODE)
+ $$ = lastiddecl;
+ got_scope = $$;
+ }
+