;;;; miscellaneous side-effectful tests of the MOP ;;;; This software is part of the SBCL system. See the README file for ;;;; more information. ;;;; ;;;; While most of SBCL is derived from the CMU CL system, the test ;;;; files (like this one) were written from scratch after the fork ;;;; from CMU CL. ;;;; ;;;; This software is in the public domain and is provided with ;;;; absolutely no warranty. See the COPYING and CREDITS files for ;;;; more information. ;;;; Note that the MOP is not in an entirely supported state. ;;;; However, this seems a good a way as any of ensuring that we have ;;;; no regressions. (defpackage "MOP-TEST" (:use "CL" "SB-MOP")) (in-package "MOP-TEST") ;;; Readers for Class Metaobjects (pp. 212--214 of AMOP) (defclass red-herring (forward-ref) ()) (assert (null (class-direct-slots (find-class 'forward-ref)))) (assert (null (class-direct-default-initargs (find-class 'forward-ref)))) ;;; Readers for Generic Function Metaobjects (pp. 216--218 of AMOP) (defgeneric fn-with-odd-arg-precedence (a b c) (:argument-precedence-order b c a)) (assert (equal (generic-function-lambda-list #'fn-with-odd-arg-precedence) '(a b c))) (assert (equal (generic-function-argument-precedence-order #'fn-with-odd-arg-precedence) '(b c a))) ;;; Test for DOCUMENTATION's order, which was wrong until sbcl-0.7.8.39 (assert (equal (generic-function-argument-precedence-order #'documentation) (let ((ll (generic-function-lambda-list #'documentation))) (list (nth 1 ll) (nth 0 ll))))) (assert (null (generic-function-declarations #'fn-with-odd-arg-precedence))) (defgeneric gf-with-declarations (x) (declare (optimize (speed 3))) (declare (optimize (safety 0)))) (let ((decls (generic-function-declarations #'gf-with-declarations))) (assert (= (length decls) 2)) (assert (member '(optimize (speed 3)) decls :test #'equal)) (assert (member '(optimize (safety 0)) decls :test #'equal))) ;;; Readers for Slot Definition Metaobjects (pp. 221--224 of AMOP) ;;; Ensure that SLOT-DEFINITION-ALLOCATION returns :INSTANCE/:CLASS as ;;; appropriate. (defclass sdm-test-class () ((an-instance-slot :accessor an-instance-slot) (a-class-slot :allocation :class :accessor a-class-slot))) (dolist (m (list (list #'an-instance-slot :instance) (list #'a-class-slot :class))) (let ((methods (generic-function-methods (car m)))) (assert (= (length methods) 1)) (assert (eq (slot-definition-allocation (accessor-method-slot-definition (car methods))) (cadr m))))) ;;; Class Finalization Protocol (see section 5.5.2 of AMOP) (let ((finalized-count 0)) (defmethod finalize-inheritance :after ((x standard-class)) (incf finalized-count)) (defun get-count () finalized-count)) (defclass finalization-test-1 () ()) (make-instance 'finalization-test-1) (assert (= (get-count) 1)) (defclass finalization-test-2 (finalization-test-3) ()) (assert (= (get-count) 1)) (defclass finalization-test-3 () ()) (make-instance 'finalization-test-3) (assert (or (= (get-count) 2) (= (get-count) 3))) (make-instance 'finalization-test-2) (assert (= (get-count) 3)) ;;; Bits of FUNCALLABLE-STANDARD-CLASS are easy to break; make sure ;;; that it is at least possible to define classes with that as a ;;; metaclass. (defclass gf-class (standard-generic-function) () (:metaclass funcallable-standard-class)) (defgeneric g (a b c) (:generic-function-class gf-class)) ;;; until sbcl-0.7.12.47, PCL wasn't aware of some direct class ;;; relationships. These aren't necessarily true, but are probably ;;; not going to change often. (dolist (x '(number array sequence character symbol)) (assert (eq (car (class-direct-superclasses (find-class x))) (find-class t))) (assert (member (find-class x) (class-direct-subclasses (find-class t))))) ;;; the class-prototype of the NULL class used to be some weird ;;; standard-instance-like thing. Make sure it's actually NIL. ;;; ;;; (and FIXME: eventually turn this into asserting that the prototype ;;; of all built-in-classes is of the relevant type) (assert (null (class-prototype (find-class 'null)))) ;;; simple consistency checks for the SB-MOP package: all of the ;;; functionality specified in AMOP is in functions and classes: (assert (null (loop for x being each external-symbol in "SB-MOP" unless (or (fboundp x) (find-class x)) collect x))) ;;; and all generic functions in SB-MOP have at least one specified ;;; method, except for UPDATE-DEPENDENT (assert (null (loop for x being each external-symbol in "SB-MOP" unless (or (not (fboundp x)) (eq x 'update-dependent) (not (typep (fdefinition x) 'generic-function)) (> (length (generic-function-methods (fdefinition x))) 0)) collect x))) ;;; make sure that ENSURE-CLASS-USING-CLASS's arguments are the right ;;; way round (!) (defvar *e-c-u-c-arg-order* nil) (defmethod ensure-class-using-class :after (class (name (eql 'e-c-u-c-arg-order)) &key &allow-other-keys) (setf *e-c-u-c-arg-order* t)) (defclass e-c-u-c-arg-orderoid () ()) (assert (null *e-c-u-c-arg-order*)) (defclass e-c-u-c-arg-order () ()) (assert (eq *e-c-u-c-arg-order* t)) ;;; verify that FIND-CLASS works after FINALIZE-INHERITANCE (defclass automethod-class (standard-class) ()) (defmethod validate-superclass ((c1 automethod-class) (c2 standard-class)) t) (defmethod finalize-inheritance :after ((x automethod-class)) (format t "~&~S ~S~%" x (find-class (class-name x)))) (defclass automethod-object () () (:metaclass automethod-class)) (defvar *automethod-object* (make-instance 'automethod-object)) (assert (typep *automethod-object* 'automethod-object)) ;;; COMPUTE-EFFECTIVE-SLOT-DEFINITION should take three arguments, one ;;; of which is the name of the slot. (defvar *compute-effective-slot-definition-count* 0) (defmethod compute-effective-slot-definition :before (class (name (eql 'foo)) dsds) (incf *compute-effective-slot-definition-count*)) (defclass cesd-test-class () ((foo :initarg :foo))) (make-instance 'cesd-test-class :foo 3) ;;; FIXME: this assertion seems a little weak. I don't know why ;;; COMPUTE-EFFECTIVE-SLOT-DEFINITION gets called twice in this ;;; sequence, nor whether that's compliant with AMOP. -- CSR, ;;; 2003-04-17 (assert (> *compute-effective-slot-definition-count* 0)) ;;; this used to cause a nasty uncaught metacircularity in PCL. (defclass substandard-method (standard-method) ()) (defgeneric substandard-defgeneric (x y) (:method-class substandard-method) (:method ((x number) (y number)) (+ x y)) (:method ((x string) (y string)) (concatenate 'string x y))) (assert (= (substandard-defgeneric 1 2) 3)) (assert (string= (substandard-defgeneric "1" "2") "12")) ;;;; success (sb-ext:quit :unix-status 104)