[ruby-core:117519] [Ruby master Feature#20428] Ability to reference current class/module in lexical scope

15 Apr 2024


      Issue #20428 has been updated by harrisonb (Hazel Bachrach).


ufuk (Ufuk Kayserilioglu) wrote in #note-1:
...
I think you should be able to use `Module.nesting.first` to get the closest lexical nesting to the executing code. There might be edge-cases where this doesn't work the way you might want it to work, but it definitely works for your example:
```ruby
module Foo
  module Bar
    def blah
      puts "executing from #{Module.nesting.first}"
    end
  end
end
class Baz
  include Foo::Bar
def blah
    super
puts "executing from #{self.class.name}"
  end
end
Baz.new.blah
```
outputs
```
executing from Foo::Bar
executing from Baz
```
It absolutely does--apologies for using up your time informing me of an existing API! Thank you!

----------------------------------------
Feature #20428: Ability to reference current class/module in lexical scope
https://bugs.ruby-lang.org/issues/20428#change-107908

* Author: harrisonb (Hazel Bachrach)
* Status: Open
----------------------------------------
Hello! As far as I know, there is no way to reference the current `Class` or `Module` one is inside of lexically in Ruby. Would it make sense to add a syntax/keyword for this?

``` ruby
module Foo
  module Bar
    def blah
      puts "executing from #{magic_new_keyword}"
    end
  end
end

class Baz
  include Foo::Bar

  def blah
    super
    
    puts "executing from #{self.class.name}"
  end
end

Baz.new.blah
```

What I'm hoping for is
```
executing from Foo::Bar
executing from Baz
```


-- 
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