From: janko.marohnic@...
Date: 2014-12-26T22:40:21+00:00
Subject: [ruby-core:67157] [ruby-trunk - Bug #10659] [Open] can't dup Fixnum	(TypeError)

Issue #10659 has been reported by Janko Marohni��.

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Bug #10659: can't dup Fixnum (TypeError)
https://bugs.ruby-lang.org/issues/10659

* Author: Janko Marohni��
* Status: Open
* Priority: Normal
* Assignee: 
* Category: core
* Target version: current: 2.2.0
* ruby -v: ruby 2.2.0p0 (2014-12-25 revision 49005) [x86_64-darwin14]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
----------------------------------------
In Ruby 2.2 (older versions are good) there is a bug with unnamed keyword arguments when `super` is used.

```rb
module Foo
  def foo(**)
  end
end

class Bar
  include Foo

  def foo(bar: "bar", **)
    super
  end
end

Bar.new.foo # `dup': can't dup Fixnum (TypeError)
```

It happens when `super` is called. If I give the keyword arguments a name (`**` => `**options`) or if I remove the default keyword argument (`bar: "bar"`), the error doesn't happen.



-- 
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