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60 lines
2 KiB
Common Lisp
60 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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;;; a test that metaclasses can be instantiated even if there are
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;;; applicable methods for SLOT-VALUE-USING-CLASS with specialized
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;;; arguments that invoke slot readers. (Previously the PV
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;;; optimization for slot readers caused the new class's wrapper and
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;;; effective slot definitions to be available during class
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;;; finalization)
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(defclass my-class (standard-class)
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())
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(defmethod sb-mop:validate-superclass ((class my-class) (super-class standard-class))
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t)
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(defvar *foo*)
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;;; the specialization of OBJECT here triggers the PV optimization;
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;;; with an unspecialized argument, the SLOT-VALUE is not optimized.
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(defmethod sb-mop:slot-value-using-class
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((class my-class) (object standard-object) eslotd)
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(if *foo*
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(setf (slot-value object 'id) 42)
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(call-next-method)))
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(defclass my-object ()
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((id :type integer :reader id-of))
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(:metaclass my-class))
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;;; the first patch failed on code like this, because the STD-P field
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;;; of the accessor information was also computed lazily, but it is
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;;; needed in order to real with accessor cache misses.
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(defun test-global-accessors ()
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(let ((object (make-instance 'my-object)))
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(setf (slot-value object 'id) 13)
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(let ((*foo* nil))
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(assert (= (id-of object) 13))
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(assert (= (slot-value object 'id) 13)))
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(let ((*foo* t))
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(assert (= (id-of object) 42))
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(assert (= (slot-value object 'id) 42)))
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(let ((*foo* nil))
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(assert (= (id-of object) 42))
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(assert (= (slot-value object 'id) 42)))))
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(compile 'test-global-accessors)
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(with-test (:name (:mop-29))
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(test-global-accessors))
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