[ruby-core:112497] [Ruby master Feature#19450] Is there an official way to set a class name without setting a constant?

20 Feb 2023

      Issue #19450 has been updated by nobu (Nobuyoshi Nakada).

Description updated

ioquatix (Samuel Williams) wrote:
...
Can we do better?
I'm not sure what you want to do exactly.
...
```ruby
Class.new do
  def self.name
    "Klass"
  end
end
```
This is what `EnvUtil#labeled_class` does.

----------------------------------------
Feature #19450: Is there an official way to set a class name without setting a constant?
https://bugs.ruby-lang.org/issues/19450#change-101941

* Author: ioquatix (Samuel Williams)
* Status: Open
* Priority: Normal
----------------------------------------
This is the best I could come up with:

```ruby
klass = Class.new

Object.const_set("Klass", klass)
Object.send(:remove_const, "Klass")

puts klass.new
# => #<Klass:0x0000000100a9d688>
```

Can we do better?

What about something like:

```ruby
Class.new(name: "Klass")
```

or

```ruby
Class.new do
  def self.name
    "Klass"
  end
end
```

etc

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