sym

Sym

Globals

Cases

0ms

class Sym def initialize(initValue=nil) @_ = initValue @fun = ->{@_} @bind = ->fun{_ = @fun.clone; @fun = ->{@_ = _[]; fun[]}; self} end def to_i() @fun[] end def +(_) @bind[->{@_ + _.to_i}] end def -(_) @bind[->{@_ - _.to_i}] end def *(_) @bind[->{@_ * _.to_i}] end def /(_) @bind[->{@_ / _.to_i}] end def **(_) @bind[->{@_ ** _.to_i}] end def ==(_) @bind[->{_.to_i}] end def &(_) @bind[->{_.to_i}] end end x, y = (0..1).map do Sym.new end x == 3 y == 4 p (x ** 2 + y ** 2).to_i # -> 25