Module: Treat::Entities::Entity::Comparable

Included in:
Treat::Entities::Entity
Defined in:
lib/treat/entities/entity/comparable.rb

Overview

Allow comparison of entity hierarchy in DOM.

Instance Method Summary collapse

Instance Method Details

#compare_with(klass) ⇒ Object

Determines whether the receiving class is smaller, equal or greater in the DOM hierarchy compared to the supplied one.



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# File 'lib/treat/entities/entity/comparable.rb', line 7

def compare_with(klass)
  i = 0; rank_a = nil; rank_b = nil
  Treat.core.entities.order.each do |type|
    klass2 = Treat::Entities.const_get(type.cc)
    rank_a = i if self <= klass2
    rank_b = i if klass <= klass2
    next if rank_a && rank_b
    i += 1
  end
  return -1 if rank_a < rank_b
  return 0 if rank_a == rank_b
  return 1 if rank_a > rank_b
end