From: "marcandre (Marc-Andre Lafortune)" <ruby-core@...>
Date: 2013-03-30T13:34:03+09:00
Subject: [ruby-core:53839] [ruby-trunk - Bug #8188][Open] Wrong warning about __attached__


Issue #8188 has been reported by marcandre (Marc-Andre Lafortune).

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Bug #8188: Wrong warning about __attached__
https://bugs.ruby-lang.org/issues/8188

Author: marcandre (Marc-Andre Lafortune)
Status: Open
Priority: Low
Assignee: 
Category: core
Target version: current: 2.1.0
ruby -v: ruby 2.1.0dev (2013-03-30)


ruby -w -e "ARGF.singleton_class.instance_eval{}"
# => warning: instance variable __attached__ not initialized

Here's the test, but I'm not sure how to fix. Should rb_ivar_get(..., id_attached) replaced with rb_attr_get?

```
diff --git a/test/ruby/test_eval.rb b/test/ruby/test_eval.rb
index 580d3e8..8e3bd8c 100644
--- a/test/ruby/test_eval.rb
+++ b/test/ruby/test_eval.rb
@@ -215,6 +215,12 @@ class TestEval < Test::Unit::TestCase
     end
   end
 
+  def test_instance_eval_on_argf_singleton_class
+    assert_warning('', '[ruby-core:xxx]') do
+      ARGF.singleton_class.instance_eval{}
+    end
+  end
+
   class Foo
     Bar = 2
   end
```




-- 
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