class Axiom::Optimizer::Relation::Operation::Unary::EmptyOperand
Optimize when the operand is Empty
Public Instance Methods
optimizable?()
click to toggle source
Test if the operand is empty
@return [Boolean]
@api private
# File lib/axiom/optimizer/relation/operation/unary.rb, line 83 def optimizable? operand.kind_of?(Axiom::Relation::Empty) end
optimize()
click to toggle source
A Unary
operation on an empty operand is empty
@return [Relation::Empty]
@api private
# File lib/axiom/optimizer/relation/operation/unary.rb, line 92 def optimize operand end