class Campa::Lisp::Cons
Attributes
printer[R]
Public Class Methods
new()
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# File lib/campa/lisp/cons.rb, line 4 def initialize @printer = Printer.new end
Public Instance Methods
call(new_head, list)
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# File lib/campa/lisp/cons.rb, line 8 def call(new_head, list) raise illegal_argument(list) if !list.is_a?(List) list.push(new_head) end
Private Instance Methods
illegal_argument(list)
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# File lib/campa/lisp/cons.rb, line 18 def illegal_argument(list) Error::IllegalArgument.new(printer.call(list), "list") end