From: ruby-core@...
Date: 2014-01-20T05:47:50+00:00
Subject: [ruby-core:59892] [ruby-trunk - Feature #6373] public #self

Issue #6373 has been updated by Marc-Andre Lafortune.


Andrew Vit wrote:
> Rails ActiveSupport includes a similar method called `presence`.

Mmm, no, that's quite different. `"".presence # => nil` for example.

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Feature #6373: public #self
https://bugs.ruby-lang.org/issues/6373#change-44445

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

  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.
=end

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


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