https://git.ruby-lang.org/ruby.git/commit/?id=bf97415c02

From bf97415c02b11a8949f715431aca9eeb6311add2 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Mon, 30 Nov 2020 23:33:20 +0900
Subject: Removed deprecated Dir.exists? and File.exists?

---
 dir.c                       |  9 ---------
 file.c                      | 18 ------------------
 test/ruby/test_exception.rb |  8 ++++++--
 3 files changed, 6 insertions(+), 29 deletions(-)

diff --git a/dir.c b/dir.c
index 184dbf007ed..1a3ba820708 100644
--- a/dir.c
+++ b/dir.c
@@ -3260,14 +3260,6 @@ rb_file_directory_p(void) https://github.com/ruby/ruby/blob/trunk/dir.c#L3260
 }
 #endif
 
-/* :nodoc: */
-static VALUE
-rb_dir_exists_p(VALUE obj, VALUE fname)
-{
-    rb_warn_deprecated("Dir.exists?", "Dir.exist?");
-    return rb_file_directory_p(obj, fname);
-}
-
 static void *
 nogvl_dir_empty_p(void *ptr)
 {
@@ -3386,7 +3378,6 @@ Init_Dir(void) https://github.com/ruby/ruby/blob/trunk/dir.c#L3378
     rb_define_singleton_method(rb_cDir,"home", dir_s_home, -1);
 
     rb_define_singleton_method(rb_cDir,"exist?", rb_file_directory_p, 1);
-    rb_define_singleton_method(rb_cDir,"exists?", rb_dir_exists_p, 1);
     rb_define_singleton_method(rb_cDir,"empty?", rb_dir_s_empty_p, 1);
 
     rb_define_singleton_method(rb_cFile,"fnmatch", file_s_fnmatch, -1);
diff --git a/file.c b/file.c
index 2d0f3234067..5a5e6b27060 100644
--- a/file.c
+++ b/file.c
@@ -1786,23 +1786,6 @@ rb_file_exist_p(VALUE obj, VALUE fname) https://github.com/ruby/ruby/blob/trunk/file.c#L1786
     return Qtrue;
 }
 
-/* :nodoc: */
-static VALUE
-rb_file_exists_p(VALUE obj, VALUE fname)
-{
-    const char *s = "FileTest#exist?";
-    if (obj == rb_mFileTest) {
-	s = "FileTest.exist?";
-    }
-    else if (obj == rb_cFile ||
-	     (RB_TYPE_P(obj, T_CLASS) &&
-	      RTEST(rb_class_inherited_p(obj, rb_cFile)))) {
-	s = "File.exist?";
-    }
-    rb_warn_deprecated("%.*ss?", s, (int)(strlen(s)-1), s);
-    return rb_file_exist_p(obj, fname);
-}
-
 /*
  * call-seq:
  *    File.readable?(file_name)   -> true or false
@@ -6703,7 +6686,6 @@ Init_File(void) https://github.com/ruby/ruby/blob/trunk/file.c#L6686
 
     define_filetest_function("directory?", rb_file_directory_p, 1);
     define_filetest_function("exist?", rb_file_exist_p, 1);
-    define_filetest_function("exists?", rb_file_exists_p, 1);
     define_filetest_function("readable?", rb_file_readable_p, 1);
     define_filetest_function("readable_real?", rb_file_readable_real_p, 1);
     define_filetest_function("world_readable?", rb_file_world_readable_p, 1);
diff --git a/test/ruby/test_exception.rb b/test/ruby/test_exception.rb
index 4a088294736..4ddd6011b9c 100644
--- a/test/ruby/test_exception.rb
+++ b/test/ruby/test_exception.rb
@@ -1064,13 +1064,17 @@ $stderr = $stdout; raise "\x82\xa0"') do |outs, errs, status| https://github.com/ruby/ruby/blob/trunk/test/ruby/test_exception.rb#L1064
   end
 
   def test_warn_deprecated_backwards_compatibility_category
-    warning = capture_warning_warn { Dir.exists?("non-existent") }
+    skip "no method to test"
+
+    warning = capture_warning_warn { }
 
     assert_match(/deprecated/, warning[0])
   end
 
   def test_warn_deprecated_category
-    warning = capture_warning_warn(category: true) { Dir.exists?("non-existent") }
+    skip "no method to test"
+
+    warning = capture_warning_warn(category: true) { }
 
     assert_equal :deprecated, warning[0][1]
   end
-- 
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