[ruby-core:64155] [ruby-trunk - Feature #6373] public #self

Issue #6373 has been updated by Rafael Fran巽a.


We just implemented it on Active Support https://github.com/rails/rails/commit/702ad710b57bef45b081ebf42e6fa70820fdd810

 I believe matz already accepted it as `#itself` so we are renaming it to `#itself`.

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Feature #6373: public #self
https://bugs.ruby-lang.org/issues/6373#change-48159

* Author: Thomas Sawyer
* Status: Open
* Priority: Normal
* Assignee: Yukihiro Matsumoto
* Category: core
* Target version: next minor
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This was recently suggested to me as an extension:

~~~ruby
class Object
  # An identity method that provides access to an object's 'self'.
  #
  # Example:
  #   [1,2,3,4,5,1,2,2,3].group_by(&:identity)
  #   #=> {1=>[1, 1], 2=>[2, 2, 2], 3=>[3, 3], 4=>[4], 5=>[5]}
  #
  def identity
    self
  end
end
~~~

First, is such a method commonly useful enough to warrant existence?

Second, it makes me wonder if #self should be a public method in general.


---Files--------------------------------
self.pdf (77.8 KB)


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