1 files changed, 18 insertions, 0 deletions
diff --git a/file.c b/file.c
index c64ec8cf7f..0c599b0895 100644
--- a/file.c
+++ b/file.c
@@ -1787,6 +1787,23 @@ rb_file_exist_p(VALUE obj, VALUE fname)
     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
@@ -6452,6 +6469,7 @@ Init_File(void)
 
     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);