# pops the top 2 items of the +:int+ stack, and one +:bool+; # returns the top +:int+ item if the +:bool+ is +false+, the second one if +true+ # # *needs:* 2 +:int+, 1 +:bool+ # # *pushes:* 1 +:int+ # class IntIfInstruction < Instruction include IfInstruction def initialize(context) super(context, :int) end end