tempfile.rb: undefine finalizer on unlink

* lib/tempfile.rb (Tempfile#unlink): finalizer is no longer needed
  after unlinking.  patched by by normalperson (Eric Wong) at
  [ruby-core:56521] [Bug #8768]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43110 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,9 @@
+Tue Oct  1 22:03:48 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/tempfile.rb (Tempfile#unlink): finalizer is no longer needed
+	  after unlinking.  patched by by normalperson (Eric Wong) at
+	  [ruby-core:56521] [Bug #8768]
+
 Tue Oct  1 20:54:33 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* file.c (stat_new_0): constify.

lib/tempfile.rb

@@ -190,7 +190,6 @@ class Tempfile < DelegateClass(File)
   def close!
     _close
     unlink
-    ObjectSpace.undefine_finalizer(self)
   end
 
   # Unlinks (deletes) the file from the filesystem. One should always unlink
@@ -238,6 +237,7 @@ class Tempfile < DelegateClass(File)
     # remove tmpname from remover
     @data[0] = @data[1] = nil
     @tmpname = nil
+    ObjectSpace.undefine_finalizer(self)
   end
   alias delete unlink
 

test/test_tempfile.rb

@@ -206,6 +206,20 @@ puts Tempfile.new('foo').path
     end
   end
 
+  def test_tempfile_finalizer_does_not_run_if_unlinked
+    bug8768 = '[ruby-core:56521] [Bug #8768]'
+    args = %w(--disable-gems -rtempfile)
+    assert_in_out_err(args, <<-'EOS') do |(filename), (error)|
+      tmp = Tempfile.new('foo')
+      puts tmp.path
+      tmp.unlink
+      $DEBUG = true
+      EOS
+      assert_file.not_exist?(filename)
+      assert_nil(error, "#{bug8768} we used to get a confusing 'removing ...done' here")
+    end
+  end
+
   def test_size_flushes_buffer_before_determining_file_size
     t = tempfile("foo")
     t.write("hello")