https://git.ruby-lang.org/ruby.git/commit/?id=2aa6826e81

From 2aa6826e81ec880f5e98fa995e44fae0819be95d Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Sun, 15 Aug 2021 01:33:31 +0900
Subject: Extract the wrapped value when yydebug [Bug #18075]

---
 parse.y                    | 2 +-
 test/ripper/test_ripper.rb | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/parse.y b/parse.y
index 4c4cbcf..cd69710 100644
--- a/parse.y
+++ b/parse.y
@@ -10791,7 +10791,7 @@ parser_token_value_print(struct parser_params *p, enum yytokentype type, const Y https://github.com/ruby/ruby/blob/trunk/parse.y#L10791
 #ifndef RIPPER
 	v = valp->node->nd_lit;
 #else
-	v = valp->val;
+	v = get_value(valp->val);
 #endif
 	rb_parser_printf(p, "%+"PRIsVALUE, v);
 	break;
diff --git a/test/ripper/test_ripper.rb b/test/ripper/test_ripper.rb
index ab841b7..76276c5 100644
--- a/test/ripper/test_ripper.rb
+++ b/test/ripper/test_ripper.rb
@@ -75,6 +75,15 @@ class TestRipper::Ripper < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ripper/test_ripper.rb#L75
     assert_include out.string[/.*"local variable or method".*/], 'test_xxxx'
   end
 
+  def test_yydebug_string
+    out = StringIO.new
+    ripper = Ripper.new '"woot"'
+    ripper.yydebug = true
+    ripper.debug_output = out
+    ripper.parse
+    assert_include out.string[/.*"literal content".*/], 'woot'
+  end
+
   def test_regexp_with_option
     bug11932 = '[ruby-core:72638] [Bug #11932]'
     src = '/[\xC0-\xF0]/u'.dup.force_encoding(Encoding::UTF_8)
-- 
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