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class & type size (and some more exports)
Annotate for file src/objects/class.lisp
2009-04-05 tobias
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(in-package #:smoke)
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2009-06-22 tobias
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(defclass smoke-class ()
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((id :initform 0 :type smoke-index
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:reader id :initarg :id)
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(smoke :type smoke-module
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:reader smoke :initarg :smoke)))
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2009-06-22 tobias
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(defun make-smoke-class-from-id (smoke id)
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(make-instance 'smoke-class :id id :smoke smoke))
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(declaim (inline smoke-class-pointer))
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(defun smoke-class-pointer (class)
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(mem-aref (the foreign-pointer
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(smoke-array-pointer (smoke-module-classes (smoke class))))
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'smoke-class
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(the smoke-index (id class))))
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2009-05-26 tobias
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(declaim (inline class-slot-value))
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(defun class-slot-value (class slot-name)
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(foreign-slot-value (smoke-class-pointer class)
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'smoke-class slot-name))
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2009-06-22 tobias
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(define-compiler-macro class-slot-value (&whole form class slot-name)
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(if (constantp slot-name)
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`(foreign-slot-value (smoke-class-pointer ,class)
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'smoke-class ,slot-name)
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form))
'
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(defmethod name ((class smoke-class))
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(class-slot-value class 'name))
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2010-01-23 tobias
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(defun class-size (smoke-class)
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(class-slot-value smoke-class 'size))
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2009-04-05 tobias
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(defun map-classes (function smoke)
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"Applies FUNCTION to the classes of SMOKE."
2009-05-14 tobias
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(declare (function function)
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(optimize (speed 3)))
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(let ((class (make-instance 'smoke-class
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:smoke smoke)))
2009-06-22 tobias
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(loop for id from 1 to (smoke-array-length (smoke-module-classes smoke)) do
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(setf (slot-value class 'id)
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id)
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(funcall function class))))
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'
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(defun external-p (class)
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"Returns T when CLASS is external in its module; NIL otherwise."
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(declare (type smoke-class class)
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(optimize (speed 3)))
2009-05-26 tobias
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(class-slot-value class 'external))
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2009-06-22 tobias
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(defun get-class-flag (class flag)
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(declare (optimize (speed 3)))
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(logand (class-slot-value class 'flags)
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(the fixnum (foreign-enum-value 'smoke-class-flags flag))))
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(defmethod constructor-p ((class smoke-class))
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"Returns T when CLASS has a constructor; NIL otherwise."
2009-06-22 tobias
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(/= 0 (get-class-flag class :constructor)))
2009-04-05 tobias
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2010-01-23 tobias
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(defun copy-constructor-p (class)
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(/= 0 (get-class-flag class :copy-constructor)))
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2009-05-24 tobias
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(defun virtual-destructor-p (class)
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"Returns T when CLASS has a virtual destructor and NIL otherwise."
2009-06-22 tobias
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(/= 0 (get-class-flag class :virtual-destructor)))
2009-05-24 tobias
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2009-04-05 tobias
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(define-condition undefined-class (cell-error)
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()
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(:report (lambda (condition stream)
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(format stream "No Smoke class named ~S."
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(cell-error-name condition))))
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(:documentation "A undefined Smoke class"))
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2010-01-10 tobias
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(define-condition lisp-module-not-loaded (error)
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((class-name :initarg :class-name))
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(:report (lambda (condition stream)
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(format stream "The Lisp smoke module of the class ~A is not loaded."
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(slot-value condition 'class-name)))))
'
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2010-01-17 tobias
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(defun make-smoke-class (name)
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"Returns the class named NAME.
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Signals an undefined-class condition when there is no class for NAME."
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(with-foreign-object (c 'smoke-module-index)
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(do () (nil)
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(smoke-find-class c name)
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(restart-case
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(if (null-pointer-p (foreign-slot-value c 'smoke-module-index 'smoke))
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(error (make-condition 'undefined-class :name name))
2009-04-05 tobias
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(return))
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(supply (new-name)
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:report "Supply a new class name"
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:interactive read-new-value
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(setf name new-name))))
2010-01-10 tobias
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(let ((class (make-instance
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'smoke-class
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:id (foreign-slot-value c 'smoke-module-index 'index)
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:smoke (gethash (pointer-address (foreign-slot-value
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c 'smoke-module-index
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'smoke))
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*smoke-modules*))))
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(unless (smoke class)
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(error (make-condition 'lisp-module-not-loaded :class-name name)))
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class)))
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(defun real-class (class)
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"Returns the same class like CLASS, but such that EXTERNAL-P returns NIL."
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(if (external-p class)
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(handler-case (make-smoke-class (name class))
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(undefined-class () class))
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class))
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'
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(defun class-id (module class)
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"Returns the class id of CLASS for the Smoke module MODULE."
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(if (eq (smoke class) module)
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(id class)
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(smoke-class-id module (name class))))
'
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2010-02-16 tobias
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;(defun smoke-subclassp (class base-class) TODO
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(defun derived-p (class base-class)
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"Returns T when CLASS is derived from BASE-CLASS and NIL when not."
2010-02-16 tobias
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(values
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(derived-real-p (real-class class) (real-class base-class))
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T))
2009-04-05 tobias
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15:36:29 '
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(defun derived-real-p (class base-class)
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(smoke-is-derived-from (smoke-module-pointer (smoke class))
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(id class)
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(smoke-module-pointer (smoke base-class))
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(id base-class)))
2009-04-05 tobias
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15:36:29 '
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'
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(defun smoke-class-direct-superclasses (class)
2009-05-26 tobias
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(smoke-add-superclass class nil (class-slot-value class 'parents)))
2009-04-05 tobias
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15:36:29 '
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(defun smoke-add-superclass (class classes index)
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(let ((class-index (mem-aref (smoke-module-inheritance-list
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(smoke class))
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'smoke-index
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index)))
2009-07-22 tobias
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(assert (<= class-index (smoke-array-length
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(smoke-module-classes (smoke class)))))
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(if (= 0 class-index)
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classes
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(smoke-add-superclass
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class
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(append classes
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(list (make-smoke-class-from-id (smoke class) class-index)))
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(1+ index)))))