From: "Eregon (Benoit Daloze)" <noreply@...>
Date: 2022-03-11T12:18:59+00:00
Subject: [ruby-core:107845] [Ruby master Bug#11063] Special singleton class should return true for singleton_class? test

Issue #11063 has been updated by Eregon (Benoit Daloze).


Changing this would cause the reverse inconsistency:
```ruby
false.class.singleton_class? #=> would be true, but .class.singleton_class? should always be false
```

The only real fix would be to have separate class and singleton_class for nil/false/true, but it's unclear if that's worth it.

----------------------------------------
Bug #11063: Special singleton class should return true for singleton_class? test
https://bugs.ruby-lang.org/issues/11063#change-96782

* Author: rbjl (Jan Lelis)
* Status: Open
* Priority: Normal
* ruby -v: ruby 2.2.1p85 (2015-02-26 revision 49769) [x86_64-linux]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
----------------------------------------
This seems wrong (or at least inconsistent):

~~~
nil.singleton_class.singleton_class? #=> false
true.singleton_class.singleton_class? #=> false
false.singleton_class.singleton_class? #=> false
~~~

---Files--------------------------------
special_singletons.patch (1.16 KB)


-- 
https://bugs.ruby-lang.org/

Unsubscribe: <mailto:ruby-core-request@ruby-lang.org?subject=unsubscribe>
<http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>