Method: Kernel#as

Defined in:
lib/core/facets/kernel/as.rb

#as(ancestor, &blk) ⇒ Object

Returns a As-functor that allows one to call any ancestor’s method directly of the given object.

class AsExample1
  def x ; 1 ; end
end

class AsExample2 < AsExample1
  def x ; 2 ; end
end

class AsExample3 < AsExample2
  def x ; as(AsExample1).x ; end
end

AsExample1.new.x  #=> 1



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# File 'lib/core/facets/kernel/as.rb', line 22

def as(ancestor, &blk)
  ##this = self
  r = As.new(self, ancestor)
  ##unless r
  ##  r = As.cache[self][ancestor] = Functor.new do |op, *a, &b|
  ##    ancestor.instance_method(op).bind(this).call(*a,&b)
  ##  end
  ##end
  r.instance_eval(&blk) if block_given? #yield(r) if block_given?
  r
end