test-ephemeral.lisp

;; -*- mode: Lisp; Syntax: Common-Lisp; Package: cells; -*-
;;;
;;; Copyright (c) 1995,2003 by Kenneth William Tilton.
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(in-package :cells)


(defmodel m-ephem ()
  ((m-ephem-a :cell :ephemeral :initform nil :initarg :m-ephem-a :accessor m-ephem-a)
   (m-test-a :cell nil :initform nil :initarg :m-test-a :accessor m-test-a)
   (m-ephem-b :cell :ephemeral :initform nil :initarg :m-ephem-b :accessor m-ephem-b)
   (m-test-b :cell nil :initform nil :initarg :m-test-b :accessor m-test-b)))

(def-c-output m-ephem-a ()
  (setf (m-test-a self) new-value))

(def-c-output m-ephem-b ()
  (setf (m-test-b self) new-value))

(def-cell-test m-ephem
    (let ((m (make-be 'm-ephem :m-ephem-a (c-in nil) :m-ephem-b (c? (* 2 (or (^m-ephem-a) 0))))))
      (ct-assert (null (slot-value m 'm-ephem-a)))
      (ct-assert (null (m-ephem-a m)))
      (ct-assert (null (m-test-a m)))
      (ct-assert (null (slot-value m 'm-ephem-b)))
      (ct-assert (null (m-ephem-b m)))
      (ct-assert (zerop (m-test-b m)))
      (setf (m-ephem-a m) 3)
      (ct-assert (null (slot-value m 'm-ephem-a)))
      (ct-assert (null (m-ephem-a m)))
      (ct-assert (eql 3 (m-test-a m)))
      ;
      (ct-assert (null (slot-value m 'm-ephem-b)))
      (ct-assert (null (m-ephem-b m)))
      (ct-assert (eql 6 (m-test-b m)))
      ))