@@ -2,6 +2,15 @@ class File < IO
   # The path to the file
   attr_accessor :path
 
+  #
+  # call-seq:
+  #   file.to_path    -> filepath
+  #
+  # The path of the file, as File#path gives it: a File stands for its path
+  # where an object with to_path is taken for one.
+  #
+  alias to_path path
+
   #
   # call-seq:
   #   File.new(filename, mode="r")            -> file
 
@@ -56,6 +56,15 @@ def assert_dirname_with_level(path, results)
   assert_true io.closed?
 end
 
+assert('File#to_path') do
+  File.open($mrbtest_io_rfname, "r") do |io|
+    assert_equal $mrbtest_io_rfname, io.to_path
+  end
+  io = File.new(IO.sysopen($mrbtest_io_rfname), path: "given")
+  assert_equal "given", io.to_path
+  io.close
+end
+
 assert('File.basename') do
   assert_equal '', File.basename('')
   assert_equal '/', File.basename('//')