https://git.ruby-lang.org/ruby.git/commit/?id=27f7b047e0

From 27f7b047e07ceb9ee963e5d74ab0399b5e94ac4c Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Mon, 17 Aug 2020 22:36:48 +0900
Subject: Also escape DEL code


diff --git a/ext/objspace/objspace_dump.c b/ext/objspace/objspace_dump.c
index 81e490f..d5996f6 100644
--- a/ext/objspace/objspace_dump.c
+++ b/ext/objspace/objspace_dump.c
@@ -85,6 +85,9 @@ dump_append_string_value(struct dump_config *dc, VALUE obj) https://github.com/ruby/ruby/blob/trunk/ext/objspace/objspace_dump.c#L85
 	  case '\r':
 	    dump_append(dc, "\\r");
 	    break;
+	  case '\177':
+	    dump_append(dc, "\\u007f");
+	    break;
 	  default:
 	    if (c <= 0x1f)
 		dump_append(dc, "\\u%04x", c);
diff --git a/test/objspace/test_objspace.rb b/test/objspace/test_objspace.rb
index 9d05a4c..5073bbe 100644
--- a/test/objspace/test_objspace.rb
+++ b/test/objspace/test_objspace.rb
@@ -277,6 +277,7 @@ class TestObjSpace < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/objspace/test_objspace.rb#L277
 
   def test_dump_control_char
     assert_include(ObjectSpace.dump("\x0f"), '"value":"\u000f"')
+    assert_include(ObjectSpace.dump("\C-?"), '"value":"\u007f"')
   end
 
   def test_dump_special_consts
-- 
cgit v0.10.2


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