class virtual[['i, 'o]]
start :object
..end
inherit ['i, 'o] start
to derive a class to represent the
initial state of a machine. It's start
method initiates the machine
with the virtual private guard
method.method private virtual guard : (< start : 's. ('s, 'i, 'o, unit) Cf_state_gadget.t; .. >, 'i, 'o, unit)
Cf_state_gadget.guard
method start : 's. ('s, 'i, 'o, unit) Cf_state_gadget.t
Cf_state_gadget.start
Cf_state_gadget.guard self#guard self
.