parse.y: prefer @$ over @0 in empty-rule actions

nobu · nobu · commit 486f7fcc27b2 · 2026-02-27T23:47:11.000+09:00
diff --git a/parse.y b/parse.y
@@ -3094,7 +3094,7 @@ rb_parser_ary_free(rb_parser_t *p, rb_parser_ary_t *ary)
                     }
                 | /* none */
                     {
-                        $$ = new_args_tail(p, 0, 0, 0, &@0);
+                        $$ = new_args_tail(p, 0, 0, 0, &@$);
                     /*% ripper: [Qnil, Qnil, Qnil] %*/
                     }
                 ;
@@ -6260,11 +6260,11 @@ superclass	: '<'
                 ;
 
 f_opt_paren_args: f_paren_args
-                | none
+                | /* none */
                     {
                         p->ctxt.in_argdef = 0;
-                        $$ = new_args_tail(p, 0, 0, 0, &@0);
-                        $$ = new_args(p, 0, 0, 0, 0, $$, &@0);
+                        $$ = new_args_tail(p, 0, 0, 0, &@$);
+                        $$ = new_args(p, 0, 0, 0, 0, $$, &@$);
                     /*% ripper: params!(Qnil, Qnil, Qnil, Qnil, Qnil, Qnil, Qnil) %*/
                     }
                 ;
@@ -6387,8 +6387,8 @@ f_args		: f_arg ',' f_opt_arg(arg_value) ',' f_rest_arg opt_args_tail(args_tail)
                     }
                 | /* none */
                     {
-                        $$ = new_args_tail(p, 0, 0, 0, &@0);
-                        $$ = new_args(p, 0, 0, 0, 0, $$, &@0);
+                        $$ = new_args_tail(p, 0, 0, 0, &@$);
+                        $$ = new_args(p, 0, 0, 0, 0, $$, &@$);
                     /*% ripper: params!(Qnil, Qnil, Qnil, Qnil, Qnil, Qnil, Qnil) %*/
                     }
                 ;

Original file line number	Diff line number	Diff line change
`@@ -3094,7 +3094,7 @@ rb_parser_ary_free(rb_parser_t p, rb_parser_ary_t ary)`
`3094`	`3094`	`}`
`3095`	`3095`	`\| /* none */`
`3096`	`3096`	`{`
`3097`		`- $$ = new_args_tail(p, 0, 0, 0, &@0);`
	`3097`	`+ $$ = new_args_tail(p, 0, 0, 0, &@$);`
`3098`	`3098`	`/% ripper: [Qnil, Qnil, Qnil] %/`
`3099`	`3099`	`}`
`3100`	`3100`	`;`
`@@ -6260,11 +6260,11 @@ superclass : '<'`
`6260`	`6260`	`;`
`6261`	`6261`
`6262`	`6262`	`f_opt_paren_args: f_paren_args`
`6263`		`- \| none`
	`6263`	`+ \| /* none */`
`6264`	`6264`	`{`
`6265`	`6265`	`p->ctxt.in_argdef = 0;`
`6266`		`- $$ = new_args_tail(p, 0, 0, 0, &@0);`
`6267`		`- $$ = new_args(p, 0, 0, 0, 0, $$, &@0);`
	`6266`	`+ $$ = new_args_tail(p, 0, 0, 0, &@$);`
	`6267`	`+ $$ = new_args(p, 0, 0, 0, 0, $$, &@$);`
`6268`	`6268`	`/% ripper: params!(Qnil, Qnil, Qnil, Qnil, Qnil, Qnil, Qnil) %/`
`6269`	`6269`	`}`
`6270`	`6270`	`;`
`@@ -6387,8 +6387,8 @@ f_args : f_arg ',' f_opt_arg(arg_value) ',' f_rest_arg opt_args_tail(args_tail)`
`6387`	`6387`	`}`
`6388`	`6388`	`\| /* none */`
`6389`	`6389`	`{`
`6390`		`- $$ = new_args_tail(p, 0, 0, 0, &@0);`
`6391`		`- $$ = new_args(p, 0, 0, 0, 0, $$, &@0);`
	`6390`	`+ $$ = new_args_tail(p, 0, 0, 0, &@$);`
	`6391`	`+ $$ = new_args(p, 0, 0, 0, 0, $$, &@$);`
`6392`	`6392`	`/% ripper: params!(Qnil, Qnil, Qnil, Qnil, Qnil, Qnil, Qnil) %/`
`6393`	`6393`	`}`
`6394`	`6394`	`;`