Module: ActiveSupport::DescendantsTracker

Defined in:

activesupport/lib/active_support/descendants_tracker.rb

Overview

Constant Summary

@@direct_descendants =

Hash.new { |h, k| h[k] = [] }

Class Method Summary (collapse)

• + (Object) clear
• + (Object) descendants(klass)
• + (Object) direct_descendants(klass)

Instance Method Summary (collapse)

• - (Object) descendants
• - (Object) direct_descendants
• - (Object) inherited(base)

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# File 'activesupport/lib/active_support/descendants_tracker.rb', line 20

def self.clear
  @@direct_descendants.each do |klass, descendants|
    if ActiveSupport::Dependencies.autoloaded?(klass)
      @@direct_descendants.delete(klass)
    else
      descendants.reject! { |v| ActiveSupport::Dependencies.autoloaded?(v) }
    end
  end
end

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# File 'activesupport/lib/active_support/descendants_tracker.rb', line 13

def self.descendants(klass)
  @@direct_descendants[klass].inject([]) do |descendants, _klass|
    descendants << _klass
    descendants.concat _klass.descendants
  end
end

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# File 'activesupport/lib/active_support/descendants_tracker.rb', line 9

def self.direct_descendants(klass)
  @@direct_descendants[klass]
end

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# File 'activesupport/lib/active_support/descendants_tracker.rb', line 39

def descendants
  DescendantsTracker.descendants(self)
end

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# File 'activesupport/lib/active_support/descendants_tracker.rb', line 35

def direct_descendants
  DescendantsTracker.direct_descendants(self)
end

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# File 'activesupport/lib/active_support/descendants_tracker.rb', line 30

def inherited(base)
  self.direct_descendants << base
  super
end