From: hanmac@...
Date: 2018-07-02T07:45:40+00:00
Subject: [ruby-core:87740] [Ruby trunk Feature#14887] Array#delete_if does	not use #delete

Issue #14887 has been updated by Hanmac (Hans Mackowiak).


I don't think there is a way:

~~~ ruby
a = [1,2,3,2,5]
a.delete_if {|x| x == 2}
a #=> [1,3,5]
~~~
this might call delete, but what about this?

~~~ ruby
a = [1,2,3,2,5]
a.delete_if.with_index { |x,i| x  == 2 && i == 1 }
a #=> [1,3,2,5]
~~~


as you can see, you can't make `delete_if` call `delete` without breaking other code

----------------------------------------
Feature #14887: Array#delete_if does not use #delete
https://bugs.ruby-lang.org/issues/14887#change-72759

* Author: sdaubert (Sylvain Daubert)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
----------------------------------------
When a class inherits from Array, and its #delete methods is modified, #delete_if and #reject! do not call this method. From sources, its an internal C method which is called instead.

Is there a way to modify #delete_if and #reject! to use #delete? This would ease inheriting of Array class.



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