Class: Enumerator::Lazy

Inherits:
Object show all
Defined in:
lib/coroutines.rb

Instance Method Summary collapse

Instance Method Details

#filter_map ⇒ Object

:call-seq:

enum.filter_map {|obj| block }  -> an_enumerator

Returns a new lazy Enumerator which iterates over all non-nil values returned by block while obj iterates over enum. – taken from the API doc of Enumerator::Lazy.new



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# File 'lib/coroutines.rb', line 51

def filter_map
	Enumerator.new do |yielder|
		each do |*values|
			result = yield *values
			yielder << result if result
		end
	end.lazy
end