nobu	2013-04-10 11:38:29 +0900 (Wed, 10 Apr 2013)

  New Revision: 40213

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=40213

  Log:
    parse.y: mrhs_arg
    
    * parse.y (mrhs_arg): reduce duplicated code.

  Modified files:
    trunk/parse.y

Index: parse.y
===================================================================
--- parse.y	(revision 40212)
+++ parse.y	(revision 40213)
@@ -767,7 +767,7 @@ static void token_info_pop(struct parser https://github.com/ruby/ruby/blob/trunk/parse.y#L767
 %type <node> args call_args opt_call_args
 %type <node> paren_args opt_paren_args args_tail opt_args_tail block_args_tail opt_block_args_tail
 %type <node> command_args aref_args opt_block_arg block_arg var_ref var_lhs
-%type <node> command_asgn mrhs superclass block_call block_command
+%type <node> command_asgn mrhs mrhs_arg superclass block_call block_command
 %type <node> f_block_optarg f_block_opt
 %type <node> f_arglist f_args f_arg f_arg_item f_optarg f_marg f_marg_list f_margs
 %type <node> assoc_list assocs assoc undef_list backref string_dvar for_var
@@ -1238,16 +1238,7 @@ stmt		: keyword_alias fitem {lex_state = https://github.com/ruby/ruby/blob/trunk/parse.y#L1238
 			$$ = dispatch2(assign, $1, $3);
 		    %*/
 		    }
-		| mlhs '=' arg_value
-		    {
-		    /*%%%*/
-			$1->nd_value = $3;
-			$$ = $1;
-		    /*%
-			$$ = dispatch2(massign, $1, $3);
-		    %*/
-		    }
-		| mlhs '=' mrhs
+		| mlhs '=' mrhs_arg
 		    {
 		    /*%%%*/
 			$1->nd_value = $3;
@@ -2528,6 +2519,10 @@ args		: arg_value https://github.com/ruby/ruby/blob/trunk/parse.y#L2519
 		    }
 		;
 
+mrhs_arg	: mrhs
+		| arg_value
+		;
+
 mrhs		: args ',' arg_value
 		    {
 		    /*%%%*/

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