Bug #2253: should Class.new(Class) raise TypeError?

• Status: Closed
• Assignee: matz (Yukihiro Matsumoto)
• Target version: -
• ruby -v: ruby 1.9.2dev (2009-10-12 trunk 25313) [i686-linux]

[shugo (Shugo Maeda)]

=begin
Class.new(Class) does not raise TypeError as reported in [ruby-dev:34114].

$ ruby-1_8 -ve 'Class.new(Class)'
ruby 1.8.8dev (2009-10-22 revision 25430) [i686-linux]
$ ruby-1_8 -ve 'class Foo < Class; end'
ruby 1.8.8dev (2009-10-22 revision 25430) [i686-linux]
-e:1: can't make subclass of Class (TypeError)

$ ruby-trunk -ve 'Class.new(Class)'
ruby 1.9.2dev (2009-10-12 trunk 25313) [i686-linux]
$ ruby-trunk -ve 'class Foo < Class; end'
ruby 1.9.2dev (2009-10-12 trunk 25313) [i686-linux]
-e:1:in `': can't make subclass of Class (TypeError)

JRuby also works same as MRI. awesome.

should it raise TypeError?

FYI, in [ruby-list:8341], Matz said that he tried to
allow subclassing of Class but he couldn't do it for
implementation reason.
=end

[naruse (Yui NARUSE)]

• Status changed from Open to Assigned
• Assignee set to matz (Yukihiro Matsumoto)

=begin

=end

[nobu (Nobuyoshi Nakada)]

• Category set to core
• Status changed from Assigned to Closed

=begin
Fixed in r25449.
=end