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58 lines
2 KiB
Common Lisp
58 lines
2 KiB
Common Lisp
;;;; miscellaneous side-effectful tests of the MOP
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;;;; This software is part of the SBCL system. See the README file for
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;;;; more information.
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;;;;
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;;;; While most of SBCL is derived from the CMU CL system, the test
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;;;; files (like this one) were written from scratch after the fork
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;;;; from CMU CL.
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;;;;
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;;;; This software is in the public domain and is provided with
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;;;; absolutely no warranty. See the COPYING and CREDITS files for
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;;;; more information.
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;;; this file tests the programmatic class example from pp.67-69 of
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;;; AMOP.
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(defun make-programmatic-instance (superclass-names &rest initargs)
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(apply #'make-instance
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(find-programmatic-class
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(mapcar #'find-class superclass-names))
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initargs))
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(defun find-programmatic-class (superclasses)
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(let ((class (find-if
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(lambda (class)
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(equal superclasses
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(sb-mop:class-direct-superclasses class)))
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(sb-mop:class-direct-subclasses (car superclasses)))))
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(or class
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(make-programmatic-class superclasses))))
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(defun make-programmatic-class (superclasses)
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(make-instance 'standard-class
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:name (mapcar #'class-name superclasses)
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:direct-superclasses superclasses
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:direct-slots '()))
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(defclass shape () ())
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(defclass circle (shape) ())
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(defclass color () ())
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(defclass orange (color) ())
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(defclass magenta (color) ())
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(defclass label-type () ())
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(defclass top-labeled (label-type) ())
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(defclass bottom-labeled (label-type) ())
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(with-test (:name (:mop-17 1))
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(assert (null (sb-mop:class-direct-subclasses (find-class 'circle)))))
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(defvar *i1* (make-programmatic-instance '(circle orange top-labeled)))
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(defvar *i2* (make-programmatic-instance '(circle magenta bottom-labeled)))
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(defvar *i3* (make-programmatic-instance '(circle orange top-labeled)))
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(with-test (:name (:mop-17 2))
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(assert (not (eq *i1* *i3*)))
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(assert (= (length (sb-mop:class-direct-subclasses (find-class 'circle))) 2)))
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