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Class: ActiveSupport::DescendantsTracker::DescendantsArray

Do not use. This class is for internal use only.
Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Instance Chain:
self, ::Enumerable, ::ActiveSupport::EnumerableCoreExt::Constants
Inherits: Object
Defined in: activesupport/lib/active_support/descendants_tracker.rb

Overview

DescendantsArray is an array that contains weak references to classes. Note: DescendantsArray is redundant with WeakSet, however WeakSet when used on Ruby 2.7 or 3.0 can trigger a Ruby crash: bugs.ruby-lang.org/issues/18928

Class Method Summary

Instance Attribute Summary

::Enumerable - Included

#many?

Returns true if the enumerable has more than 1 element.

Instance Method Summary

::Enumerable - Included

#compact_blank

Returns a new ::Array without the blank items.
#exclude?

The negative of the Enumerable#include?.
#excluding

Returns a copy of the enumerable excluding the specified elements.
#in_order_of

Returns a new ::Array where the order has been set to that provided in the series, based on the key of the objects in the original enumerable.
#including

Returns a new array that includes the passed elements.
#index_by

Convert an enumerable to a hash, using the block result as the key and the element as the value.
#index_with

Convert an enumerable to a hash, using the element as the key and the block result as the value.
#maximum

Calculates the maximum from the extracted elements.
#minimum

Calculates the minimum from the extracted elements.
#pick

Extract the given key from the first element in the enumerable.
#pluck

Extract the given key from each element in the enumerable.
#sole

Returns the sole item in the enumerable.
#without

Alias for Enumerable#excluding.
#as_json

::ActiveSupport::EnumerableCoreExt::Constants - Included

#const_missing

Constructor Details

.new ⇒ DescendantsArray

[ GitHub ] 

  


# File 'activesupport/lib/active_support/descendants_tracker.rb', line 120



def initialize
  @refs = []
end


  







Instance Method Details



  

    #<<(klass)  
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/descendants_tracker.rb', line 124



def <<(klass)
  @refs << WeakRef.new(klass)
end


  








  

    #cleanup!  
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/descendants_tracker.rb', line 142



def cleanup!
  @refs.delete_if { |ref| !ref.weakref_alive? }
end


  








  

    #each  
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/descendants_tracker.rb', line 128



def each
  @refs.reject! do |ref|
    yield ref.__getobj__
    false
  rescue WeakRef::RefError
    true
  end
  self
end


  








  

    #refs_size  
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/descendants_tracker.rb', line 138



def refs_size
  @refs.size
end


  








  

    #reject!  
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/descendants_tracker.rb', line 146



def reject!
  @refs.reject! do |ref|
    yield ref.__getobj__
  rescue WeakRef::RefError
    true
  end
end