* parse.y (stmt, arg): reverted r15450. [ruby-core:15526]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15452 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,6 +1,4 @@
-Wed Feb 13 03:12:54 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (stmt, arg): concat opt_call_args only if non-null.
+Wed Feb 13 04:15:44 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* parse.y (arg_concat_gen, arg_append_gen): optimize for array push.
 

parse.y

@@ -1027,10 +1027,11 @@ stmt		: keyword_alias fitem {lex_state = EXPR_FNAME;} fitem
 		| primary_value '[' opt_call_args rbracket tOP_ASGN command_call
 		    {
 		    /*%%%*/
-			NODE *args = $6;
+			NODE *args;
 
-			value_expr(args);
-			if ($3) args = arg_concat(args, $3);
+			value_expr($6);
+			if (!$3) $3 = NEW_ZARRAY();
+			args = arg_concat($6, $3);
 			if ($5 == tOROP) {
 			    $5 = 0;
 			}
@@ -1828,10 +1829,11 @@ arg		: lhs '=' arg
 		| primary_value '[' opt_call_args rbracket tOP_ASGN arg
 		    {
 		    /*%%%*/
-			NODE *args = $6;
+			NODE *args;
 
-			value_expr(args);
-			if ($3) args = arg_concat(args, $3);
+			value_expr($6);
+			if (!$3) $3 = NEW_ZARRAY();
+			args = arg_concat($6, $3);
 			if ($5 == tOROP) {
 			    $5 = 0;
 			}