https://git.ruby-lang.org/ruby.git/commit/?id=50f5223236

From 50f5223236704c75c827d0a745fc934ad9c86277 Mon Sep 17 00:00:00 2001
From: yui-knk <spiketeika@g...>
Date: Sat, 8 Oct 2022 18:53:41 +0900
Subject: Fix SEGV of dump parsetree

Assign internal_id to semantic value so that dump parsetree option
can render the tree for these codes without SEGV.

* `def m(&); end`
* `def m(*); end`
* `def m(**); end`
---
 parse.y | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/parse.y b/parse.y
index 7d830c2255..8f3bca0873 100644
--- a/parse.y
+++ b/parse.y
@@ -5602,6 +5602,7 @@ f_kwrest	: kwrest_mark tIDENTIFIER https://github.com/ruby/ruby/blob/trunk/parse.y#L5602
 		    {
 			arg_var(p, ANON_KEYWORD_REST_ID);
 		    /*%%%*/
+			$$ = internal_id(p);
 		    /*% %*/
 		    /*% ripper: kwrest_param!(Qnil) %*/
 		    }
@@ -5677,6 +5678,7 @@ f_rest_arg	: restarg_mark tIDENTIFIER https://github.com/ruby/ruby/blob/trunk/parse.y#L5678
 		    {
 			arg_var(p, ANON_REST_ID);
 		    /*%%%*/
+			$$ = internal_id(p);
 		    /*% %*/
 		    /*% ripper: rest_param!(Qnil) %*/
 		    }
@@ -5698,6 +5700,7 @@ f_block_arg	: blkarg_mark tIDENTIFIER https://github.com/ruby/ruby/blob/trunk/parse.y#L5700
                     {
 			arg_var(p, ANON_BLOCK_ID);
                     /*%%%*/
+			$$ = internal_id(p);
                     /*% %*/
 		    /*% ripper: blockarg!(Qnil) %*/
                     }
-- 
cgit v1.2.1


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