;; Common Lisp bindings for GTK+ v2.0
-;; Copyright (C) 2000 Espen S. Johnsen <espejohn@online.no>
+;; Copyright (C) 2000-2001 Espen S. Johnsen <esj@stud.cs.uit.no>
;;
;; This library is free software; you can redistribute it and/or
;; modify it under the terms of the GNU Lesser General Public
;; License along with this library; if not, write to the Free Software
;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-;; $Id: gtype.lisp,v 1.2 2000-08-15 14:42:34 espen Exp $
+;; $Id: gtype.lisp,v 1.19 2004-11-07 01:21:04 espen Exp $
(in-package "GLIB")
(use-prefix "g")
-
-;;;;
+;; Initialize the glib type system
+(defbinding type-init () nil)
+(type-init)
(deftype type-number () '(unsigned 32))
-(define-foreign ("g_type_name" alien-type-name) (type) (static string)
- ((find-type-number type) type-number))
+(eval-when (:compile-toplevel :load-toplevel :execute)
+ (defclass type-query (struct)
+ ((type-number :allocation :alien :type type-number)
+ (name :allocation :alien :type string)
+ (class-size :allocation :alien :type unsigned-int)
+ (instance-size :allocation :alien :type unsigned-int))
+ (:metaclass struct-class)))
-(define-foreign %type-from-name () type-number
- (name string))
-;(define-foreign type-parent () type-number
-; (type type-number))
+(defbinding %type-query () nil
+ (type type-number)
+ (query type-query))
+
+(defun type-query (type)
+ (let ((query (make-instance 'type-query)))
+ (%type-query (find-type-number type t) query)
+ query))
+
+(defun type-instance-size (type)
+ (slot-value (type-query type) 'instance-size))
+
+(defun type-class-size (type)
+ (slot-value (type-query type) 'class-size))
+
+(defbinding type-class-ref (type) pointer
+ ((find-type-number type t) type-number))
-(define-foreign type-instance-size (type) int
- ((find-type-number type) type-number))
+(defbinding type-class-unref (type) nil
+ ((find-type-number type t) type-number))
-(define-foreign type-create-instance (type) pointer
- ((find-type-number type) type-number))
+(defbinding type-class-peek (type) pointer
+ ((find-type-number type t) type-number))
-(define-foreign type-free-instance () nil
- (instance pointer))
+;;;; Mapping between lisp types and glib types
(defvar *type-to-number-hash* (make-hash-table))
(defvar *number-to-type-hash* (make-hash-table))
-(defun type-number-from-alien-name (name &optional (error t))
- (if (string= name "invalid")
- 0
- (let ((type-number (%type-from-name name)))
- (cond
- ((and (zerop type-number) error)
- (error "Invalid alien type name: ~A" name))
- ((zerop type-number) nil)
- (t type-number)))))
-
-(defun (setf alien-type-name) (alien-name type)
- (let ((type-name (ensure-type-name type))
- (type-number (type-number-from-alien-name alien-name)))
- (setf (gethash type-number *number-to-type-hash*) type-name)
- (setf (gethash type-name *type-to-number-hash*) type-number)))
-
-(defun (setf find-type-number) (type-number type)
- (setf (gethash (ensure-type-name type) *type-to-number-hash*) type-number))
-
-(defun find-type-number (type)
+(defun register-type (type id)
+ (let ((type-number
+ (etypecase id
+ (integer id)
+ (string (find-type-number id t))
+ (symbol (gethash id *type-to-number-hash*)))))
+ (setf (gethash type *type-to-number-hash*) type-number)
+ (unless (symbolp id)
+ (setf (gethash type-number *number-to-type-hash*) type))
+ type-number))
+
+(defbinding %type-from-name () type-number
+ (name string))
+
+(defun find-type-number (type &optional error)
(etypecase type
(integer type)
- (symbol (gethash type *type-to-number-hash*))
- (pcl::class (gethash (class-name type) *type-to-number-hash*))))
+ (string
+ (let ((type-number (%type-from-name type)))
+ (cond
+ ((and (zerop type-number) error)
+ (error "Invalid gtype name: ~A" type))
+ ((zerop type-number) nil)
+ (t type-number))))
+ (symbol
+ (let ((type-number (gethash type *type-to-number-hash*)))
+ (or
+ type-number
+ (and error (error "Type not registered: ~A" type)))))
+ (pcl::class (find-type-number (class-name type) error))))
-(defun type-from-number (type-number)
- (gethash type-number *number-to-type-hash*))
+(defun type-from-number (type-number &optional error)
+ (multiple-value-bind (type found)
+ (gethash type-number *number-to-type-hash*)
+ (when (and error (not found))
+ (let ((name (find-type-name type-number)))
+ (if name
+ (error "Type number not registered: ~A (~A)" type-number name)
+ (error "Invalid type number: ~A" type-number))))
+ type))
+
+(defun type-from-name (name)
+ (etypecase name
+ (string (type-from-number (find-type-number name t)))))
+
+(defbinding (find-type-name "g_type_name") (type) string
+ ((find-type-number type t) type-number))
(defun type-number-of (object)
- (find-type-number (type-of object)))
-
-
-
-;;;; Superclass for all metaclasses implementing some sort of virtual slots
+ (find-type-number (type-of object) t))
+
+(defun init-type (init)
+ (mapc
+ #'(lambda (fname)
+ (funcall (mkbinding fname 'type-number)))
+ (mklist init)))
+
+(defun %init-types-in-library (pathname prefix ignore)
+ (let ((process (ext:run-program
+ "nm" (list "-D" (namestring (truename pathname)))
+ :output :stream :wait nil))
+ (fnames ()))
+ (labels ((read-symbols ()
+ (let ((line (read-line (ext:process-output process) nil)))
+ (when line
+ (let ((symbol (subseq line 11)))
+ (when (and
+ (> (length symbol) (length prefix))
+ (string= prefix symbol :end2 (length prefix))
+ (search "_get_type" symbol)
+ (not (member symbol ignore :test #'string=)))
+ (push symbol fnames)))
+ (read-symbols)))))
+ (read-symbols)
+ (ext:process-close process)
+ `(init-type ',fnames))))
+
+(defmacro init-types-in-library (filename &key (prefix "") ignore)
+ (%init-types-in-library filename prefix ignore))
+
+
+
+;;;; Superclass for wrapping types in the glib type system
(eval-when (:compile-toplevel :load-toplevel :execute)
- (defclass virtual-class (pcl::standard-class))
-
- (defclass direct-virtual-slot-definition (standard-direct-slot-definition)
- ((location
- :reader slot-definition-location
- :initarg :location)))
-
- (defclass effective-virtual-slot-definition
- (standard-effective-slot-definition)))
-
+ (defclass ginstance (proxy)
+ ((class :allocation :alien :type pointer))
+ (:metaclass proxy-class)))
-(defmethod direct-slot-definition-class ((class virtual-class) initargs)
- (if (eq (getf initargs :allocation) :virtual)
- (find-class 'direct-virtual-slot-definition)
- (call-next-method)))
-
-
-(defmethod effective-slot-definition-class ((class virtual-class) initargs)
- (if (eq (getf initargs :allocation) :virtual)
- (find-class 'effective-virtual-slot-definition)
- (call-next-method)))
-
-
-(defun %direct-slot-definitions-slot-value (slotds slot &optional default)
- (let ((slotd
- (find-if
- #'(lambda (slotd)
- (and
- (slot-exists-p slotd slot)
- (slot-boundp slotd slot)))
- slotds)))
- (if slotd
- (slot-value slotd slot)
- default)))
-
-
-(defgeneric compute-virtual-slot-location (class slotd direct-slotds))
-
-(defmethod compute-virtual-slot-location
- ((class virtual-class)
- (slotd effective-virtual-slot-definition)
- direct-slotds)
- (let ((location
- (%direct-slot-definitions-slot-value direct-slotds 'location)))
- (if (and location (symbolp location))
- (list location `(setf ,location))
- location)))
-
-
-(defmethod compute-effective-slot-definition
- ((class virtual-class) direct-slotds)
- (let ((slotd (call-next-method)))
- (when (typep slotd 'effective-virtual-slot-definition)
- (setf
- (slot-value slotd 'pcl::location)
- (compute-virtual-slot-location class slotd direct-slotds)))
- slotd))
-
-
-(defmethod slot-value-using-class
- ((class virtual-class) (object standard-object)
- (slotd effective-virtual-slot-definition))
- (let ((reader (first (slot-definition-location slotd))))
- (if reader
- (funcall reader object)
- (slot-unbound class object (slot-definition-name slotd)))))
-
-
-(defmethod slot-boundp-using-class
- ((class virtual-class) (object standard-object)
- (slotd effective-virtual-slot-definition))
- (and (first (slot-definition-location slotd)) t))
-
-
-
-(defmethod (setf slot-value-using-class)
- (value (class virtual-class) (object standard-object)
- (slotd effective-virtual-slot-definition))
- (let ((writer (second (slot-definition-location slotd))))
- (cond
- ((null writer)
- (error
- "Can't set read-only slot ~A in ~A"
- (slot-definition-name slotd)
- object))
- ((or (functionp writer) (symbolp writer))
- (funcall writer value object)
- object)
- (t
- (funcall (fdefinition writer) value object)
- object))))
-
-
-(defmethod validate-superclass
- ((class virtual-class) (super pcl::standard-class))
- t)
+(defun %type-of-ginstance (location)
+ (let ((class (sap-ref-sap location 0)))
+ (type-from-number (sap-ref-32 class 0))))
+(defmethod ensure-proxy-instance ((class ginstance-class) location)
+ (declare (ignore class))
+ (let ((class (find-class (%type-of-ginstance location))))
+ (if class
+ (make-instance class :location (reference-foreign class location))
+ ;; TODO: (make-instance 'ginstance ...)
+ location)))
-;;;; Superclass for wrapping of C structures
+;;;; Metaclass for subclasses of ginstance
(eval-when (:compile-toplevel :load-toplevel :execute)
- (defclass alien-instance ()
- ((location
- :reader alien-instance-location
- :type system-area-pointer)))
-
- (defgeneric allocate-alien-storage (class))
- (defgeneric reference-instance (object))
- (defgeneric unreference-instance (object))
- (defgeneric from-alien-initialize-instance (object &rest initargs))
- (defgeneric instance-finalizer (object)))
+ (defclass ginstance-class (proxy-class)
+ ()))
-(internal *instance-cache*)
-(defvar *instance-cache* (make-hash-table :test #'eql))
+(defmethod shared-initialize ((class ginstance-class) names
+ &rest initargs &key name alien-name)
+ (declare (ignore names))
+ (let* ((class-name (or name (class-name class)))
+ (type-number
+ (find-type-number
+ (or (first alien-name) (default-alien-type-name class-name)) t)))
+ (register-type class-name type-number)
+ (if (getf initargs :size)
+ (call-next-method)
+ (let ((size (type-instance-size type-number)))
+ (apply #'call-next-method class names :size (list size) initargs)))))
-(defun cache-instance (object)
- (setf
- (gethash (system:sap-int (alien-instance-location object)) *instance-cache*)
- (ext:make-weak-pointer object)))
-(defun find-cached-instance (location)
- (let ((ref (gethash (system:sap-int location) *instance-cache*)))
- (when ref
- (ext:weak-pointer-value ref))))
+(defmethod validate-superclass ((class ginstance-class) (super standard-class))
+ (subtypep (class-name super) 'ginstance))
-(defun remove-cached-instance (location)
- (remhash (system:sap-int location) *instance-cache*))
+;;;; Registering fundamental types
-(defmethod initialize-instance :before ((instance alien-instance)
- &rest initargs &key)
- (declare (ignore initargs))
- (setf
- (slot-value instance 'location)
- (allocate-alien-storage (class-of instance)))
- (cache-instance instance)
- (ext:finalize instance (instance-finalizer instance)))
+(register-type 'pointer "gpointer")
+(register-type 'char "gchar")
+(register-type 'unsigned-char "guchar")
+(register-type 'boolean "gboolean")
+(register-type 'fixnum "gint")
+(register-type 'int "gint")
+(register-type 'unsigned-int "guint")
+(register-type 'long "glong")
+(register-type 'unsigned-long "gulong")
+(register-type 'single-float "gfloat")
+(register-type 'double-float "gdouble")
+(register-type 'string "gchararray")
-(defmethod from-alien-initialize-instance ((instance alien-instance)
- &rest initargs &key location)
- (declare (ignore initargs))
- (setf (slot-value instance 'location) location)
- (cache-instance instance))
-
+;;;;
-(deftype-method translate-type-spec alien-instance (type-spec)
- (declare (ignore type-spec))
- 'system-area-pointer)
+(defvar *derivable-type-info* (make-hash-table))
+(defun register-derivable-type (type id expander)
+ (register-type type id)
+ (let ((type-number (register-type type id)))
+ (setf (gethash type-number *derivable-type-info*) expander)))
+(defun find-type-info (type)
+ (dolist (super (cdr (type-hierarchy type)))
+ (let ((info (gethash super *derivable-type-info*)))
+ (return-if info))))
-;;;; Metaclass used for subclasses of alien-instance
+(defun expand-type-definition (type options)
+ (let ((expander (find-type-info type)))
+ (funcall expander (find-type-number type t) options)))
-(eval-when (:compile-toplevel :load-toplevel :execute)
- (defclass alien-class (virtual-class)
- ((size
- :reader alien-class-size)))
-
- (defclass direct-alien-slot-definition (direct-virtual-slot-definition)
- ((allocation
- :initform :alien)
- (offset
- :reader slot-definition-offset
- :initarg :offset
- :initform 0)))
-
- (defclass effective-alien-slot-definition (effective-virtual-slot-definition)
- ((offset
- :reader slot-definition-offset)))
-
- (defclass effective-virtual-alien-slot-definition
- (effective-virtual-slot-definition))
-
+(defbinding type-parent (type) type-number
+ ((find-type-number type t) type-number))
- (defmethod alien-class-superclass ((class alien-class))
- (find-if
- #'(lambda (class)
- (subtypep (class-name class) 'alien-instance))
- (pcl::class-direct-superclasses class)))
+(defun supertype (type)
+ (type-from-number (type-parent type)))
+(defbinding %type-interfaces (type) pointer
+ ((find-type-number type t) type-number)
+ (n-interfaces unsigned-int :out))
- (defmethod shared-initialize ((class alien-class) names
- &rest initargs &key size alien-name name)
- (declare (ignore initargs))
- (call-next-method)
+(defun type-interfaces (type)
+ (multiple-value-bind (array length) (%type-interfaces type)
+ (unwind-protect
+ (map-c-vector 'list #'identity array 'type-number length)
+ (deallocate-memory array))))
- (when alien-name
- (setf (alien-type-name (or name (class-name class))) (first alien-name)))
- (when size
- (setf (slot-value class 'size) (first size))))
-
+(defun implements (type)
+ (mapcar #'type-from-number (type-interfaces type)))
- (defmethod shared-initialize :after ((class alien-class) names
- &rest initargs &key)
- (declare (ignore initargs names))
- (let* ((super (alien-class-superclass class))
- (actual-size
- (if (eq (class-name super) 'alien-instance)
- 0
- (alien-class-size super))))
- (dolist (slotd (class-slots class))
- (when (eq (slot-definition-allocation slotd) :alien)
- (with-slots (offset type) slotd
- (setq actual-size (max actual-size (+ offset (size-of type)))))))
- (cond
- ((not (slot-boundp class 'size))
- (setf (slot-value class 'size) actual-size))
- ((> actual-size (slot-value class 'size))
- (warn "The actual size of class ~A is lager than specified" class)))))
-
-
- (defmethod direct-slot-definition-class ((class alien-class) initargs)
- (case (getf initargs :allocation)
- ((nil :alien) (find-class 'direct-alien-slot-definition))
-; (:instance (error "Allocation :instance not allowed in class ~A" class))
- (t (call-next-method))))
-
-
- (defmethod effective-slot-definition-class ((class alien-class) initargs)
- (case (getf initargs :allocation)
- (:alien (find-class 'effective-alien-slot-definition))
- (:virtual (find-class 'effective-virtual-alien-slot-definition))
- (t (call-next-method))))
-
+(defun type-hierarchy (type)
+ (let ((type-number (find-type-number type t)))
+ (unless (= type-number 0)
+ (cons type-number (type-hierarchy (type-parent type-number))))))
- (defmethod compute-virtual-slot-location
- ((class alien-class) (slotd effective-alien-slot-definition)
- direct-slotds)
- (with-slots (offset type) slotd
- (setf offset (%direct-slot-definitions-slot-value direct-slotds 'offset))
- (let ((reader (get-reader-function type))
- (writer (get-writer-function type))
- (destroy (get-destroy-function type)))
- (list
- #'(lambda (object)
- (funcall reader (alien-instance-location object) offset))
- #'(lambda (value object)
- (let ((location (alien-instance-location object)))
- (funcall destroy location offset)
- (funcall writer value location offset)))))))
-
-
- (defmethod compute-virtual-slot-location
- ((class alien-class)
- (slotd effective-virtual-alien-slot-definition)
- direct-slotds)
- (let ((location (call-next-method)))
- (if (or (stringp location) (consp location))
- (destructuring-bind (reader &optional writer) (mklist location)
- (with-slots (type) slotd
- (list
- (if (stringp reader)
- (let* ((alien-type (translate-type-spec type))
- (alien
- (alien::%heap-alien
- (alien::make-heap-alien-info
- :type (alien::parse-alien-type
- `(function ,alien-type system-area-pointer))
- :sap-form (system:foreign-symbol-address reader))))
- (from-alien (get-from-alien-function type)))
- #'(lambda (object)
- (funcall
- from-alien
- (alien-funcall
- alien (alien-instance-location object)))))
- reader)
- (if (stringp writer)
- (let* ((alien-type (translate-type-spec type))
- (alien
- (alien::%heap-alien
- (alien::make-heap-alien-info
- :type (alien::parse-alien-type
- `(function
- void ,alien-type system-area-pointer))
- :sap-form (system:foreign-symbol-address writer))))
- (to-alien (get-to-alien-function type))
- (cleanup (get-cleanup-function type)))
- #'(lambda (value object)
- (let ((alien-value (funcall to-alien value))
- (location (alien-instance-location object)))
- (alien-funcall alien location alien-value)
- (funcall cleanup alien-value))))
- writer))))
- location)))
-
-
- (defmethod compute-slots ((class alien-class))
- ;; Translating the user supplied relative (to previous slot) offsets
- ;; to absolute offsets.
- ;; This code is broken and have to be fixed for real use.
- (with-slots (direct-slots) class
- (let* ((super (alien-class-superclass class))
- (slot-offset
- (if (eq (class-name super) 'alien-instance)
- 0
- (alien-class-size super))))
- (dolist (slotd direct-slots)
- (when (eq (slot-definition-allocation slotd) :alien)
- (with-slots (offset type) slotd
- (setf
- offset (+ slot-offset offset)
- slot-offset (+ offset (size-of type)))))))
+(defbinding (type-is-p "g_type_is_a") (type super) boolean
+ ((find-type-number type) type-number)
+ ((find-type-number super) type-number))
+
+(defbinding %type-children () pointer
+ (type-number type-number)
+ (num-children unsigned-int :out))
+
+(defun map-subtypes (function type &optional prefix)
+ (let ((type-number (find-type-number type t)))
+ (multiple-value-bind (array length) (%type-children type-number)
+ (unwind-protect
+ (map-c-vector
+ 'nil
+ #'(lambda (type-number)
+ (when (or
+ (not prefix)
+ (string-prefix-p prefix (find-type-name type-number)))
+ (funcall function type-number))
+ (map-subtypes function type-number prefix))
+ array 'type-number length)
+ (deallocate-memory array)))))
+
+(defun find-types (prefix)
+ (let ((type-list nil))
+ (maphash
+ #'(lambda (type-number expander)
+ (declare (ignore expander))
+ (map-subtypes
+ #'(lambda (type-number)
+ (pushnew type-number type-list))
+ type-number prefix))
+ *derivable-type-info*)
+ type-list))
+
+(defun %sort-types-topologicaly (unsorted)
+ (let ((sorted ()))
+ (loop while unsorted do
+ (dolist (type unsorted)
+ (let ((dependencies
+ (append (rest (type-hierarchy type)) (type-interfaces type))))
+ (cond
+ ((null dependencies)
+ (push type sorted)
+ (setq unsorted (delete type unsorted)))
+ (t
+ (unless (dolist (dep dependencies)
+ (when (find type (rest (type-hierarchy dep)))
+ (error "Cyclic type dependencie"))
+ (return-if (find dep unsorted)))
+ (push type sorted)
+ (setq unsorted (delete type unsorted))))))))
+ (nreverse sorted)))
+
+
+(defun expand-type-definitions (prefix &optional args)
+ (flet ((type-options (type-number)
+ (let ((name (find-type-name type-number)))
+ (cdr (assoc name args :test #'string=)))))
+
+ (let ((type-list
+ (delete-if
+ #'(lambda (type-number)
+ (let ((name (find-type-name type-number)))
+ (or
+ (getf (type-options type-number) :ignore)
+ (find-if
+ #'(lambda (options)
+ (and
+ (string-prefix-p (first options) name)
+ (getf (cdr options) :ignore-prefix)
+ (not (some
+ #'(lambda (exception)
+ (string= name exception))
+ (getf (cdr options) :except)))))
+ args))))
+ (find-types prefix))))
+
+ (dolist (type-number type-list)
+ (let ((name (find-type-name type-number)))
+ (register-type
+ (getf (type-options type-number) :type (default-type-name name))
+ type-number)))
- ;; Reverse the direct slot definitions so the effective slots
- ;; will be in correct order.
- (setf direct-slots (reverse direct-slots))
- ;; This nreverse caused me so much frustration that I leave it
- ;; here just as a reminder of what not to do.
-; (setf direct-slots (nreverse direct-slots))
- )
- (call-next-method))
-
-
- (defmethod validate-superclass ((class alien-class)
- (super pcl::standard-class))
- (subtypep (class-name super) 'alien-instance))
-
- (defgeneric make-instance-from-alien (class location &rest initargs &key)))
-
-(defmethod make-instance-from-alien ((class symbol) location
- &rest initargs &key)
- (apply #'make-instance-from-alien (find-class class) location initargs))
-
-(defmethod make-instance-from-alien ((class alien-class) location
- &rest initargs &key)
- (let ((instance (allocate-instance class)))
- (apply
- #'from-alien-initialize-instance
- instance :location location initargs)
- instance))
-
-(defun ensure-alien-instance (class location &rest initargs)
- (or
- (find-cached-instance location)
- (apply #'make-instance-from-alien class location initargs)))
-
-(defmethod allocate-alien-storage ((class alien-class))
- (allocate-memory (alien-class-size class)))
-
-
-
-;;;; Superclass for wrapping structures with reference counting
-
-(eval-when (:compile-toplevel :load-toplevel :execute)
- (defclass alien-object (alien-instance)
- ()
- (:metaclass alien-class)
- (:size 0)))
-
-(define-type-method-fun alien-ref (type-spec))
-(define-type-method-fun alien-unref (type-spec))
-
-(defmethod from-alien-initialize-instance ((object alien-object)
- &rest initargs &key)
- (declare (ignore initargs))
- (call-next-method)
- (reference-instance object))
-
-(defmethod instance-finalizer ((object alien-object))
- (let ((location (alien-instance-location object))
- (unref (fdefinition (alien-unref (class-of object)))))
- (declare (type system-area-pointer location) (type function unref))
- #'(lambda ()
- (remove-cached-instance location)
- (funcall unref location))))
-
-(defmethod reference-instance ((object alien-object))
- (funcall (alien-ref (class-of object)) object)
- object)
-
-(defmethod unreference-instance ((object alien-object))
- (funcall (alien-unref (class-of object)) object)
- nil)
-
-(deftype-method translate-to-alien
- alien-object (type-spec object &optional copy)
- (if copy
- `(,(alien-ref type-spec) ,object)
- `(alien-instance-location ,object)))
-
-(deftype-method translate-from-alien
- alien-object (type-spec location &optional alloc)
- (declare (ignore alloc))
- `(let ((location ,location))
- (unless (null-pointer-p location)
- (ensure-alien-instance ',type-spec location))))
-
-(deftype-method
- cleanup-alien alien-object (type-spec sap &optional copied)
- (when copied
- `(let ((sap ,sap))
- (unless (null-pointer-p sap)
- (,(alien-unref type-spec) sap)))))
-
-
-
-;;;; Superclass for wrapping of non-refcounted structures
-
-(eval-when (:compile-toplevel :load-toplevel :execute)
- (defclass alien-structure (alien-instance)
- ((static
- :allocation :instance
- :reader alien-structure-static-p
- :initform nil
- :type boolean))
- (:metaclass alien-class)
- (:size 0)))
-
-(define-type-method-fun alien-copier (type-spec))
-(define-type-method-fun alien-deallocator (type-spec))
-
-(defmethod from-alien-initialize-instance ((structure alien-structure)
- &rest initargs &key static)
- (declare (ignore initargs))
- (call-next-method)
- (setf (slot-value structure 'static) static))
-
-(defmethod instance-finalizer ((structure alien-structure))
- (let ((location (alien-instance-location structure)))
- (declare (type system-area-pointer location))
- (if (alien-structure-static-p structure)
- #'(lambda ()
- (remove-cached-instance location))
- (let ((deallocator
- (fdefinition (alien-deallocator (class-of structure)))))
- (declare (type function deallocator))
- #'(lambda ()
- (remove-cached-instance location)
- (funcall deallocator location))))))
-
-
-(deftype-method alien-copier alien-structure (type-spec)
- (declare (ignore type-spec))
- 'copy-memory)
-
-(deftype-method alien-deallocator alien-structure (type-spec)
- (declare (ignore type-spec))
- 'deallocate-memory)
-
-(deftype-method translate-to-alien
- alien-structure (type-spec object &optional copy)
- `(let ((object ,object))
- (if (and ,copy (not (alien-structure-static-p object)))
- (,(alien-copier type-spec)
- `(alien-instance-location object)
- ,(alien-class-size (find-class type-spec)))
- (alien-instance-location object))))
-
-(deftype-method translate-from-alien
- alien-structure (type-spec location &optional (alloc :dynamic))
- `(let ((location ,location))
- (unless (null-pointer-p location)
- ,(ecase alloc
- (:dynamic `(ensure-alien-instance ',type-spec location))
- (:static `(ensure-alien-instance ',type-spec location :static t))
- (:copy `(ensure-alien-instance
- ',type-spec
- `(,(alien-copier type-spec)
- location ,(alien-class-size (find-class type-spec)))))))))
-
-(deftype-method cleanup-alien alien-structure (type-spec sap &optional copied)
- (when copied
- `(let ((sap ,sap))
- (unless (or
- (null-pointer-p sap)
- (alien-structure-static-p (find-cached-instance sap)))
- (,(alien-deallocator type-spec) sap)))))
-
-
-
-;;;; Superclass for static structures such as gdk:visual
-
-(defclass static-structure (alien-structure)
- ()
- (:metaclass alien-class)
- (:size 0))
-
-
-(defmethod from-alien-initialize-instance ((structure alien-structure)
- &rest initargs)
- (declare (ignore initargs))
- (call-next-method)
- (setf (slot-value structure 'static) t))
-
-
-
-;;;; Superclass wrapping types in the glib type system
-
-(eval-when (:compile-toplevel :load-toplevel :execute)
- (defclass gtype (alien-object)
- ()
- (:metaclass alien-class)
- (:size 4 #|(size-of 'pointer)|#)))
-
-
-(defun %alien-instance-type-number (location)
- (let ((class (sap-ref-sap location 0)))
- (sap-ref-unsigned class 0)))
-
-
-(deftype-method translate-from-alien gtype (type-spec location &optional alloc)
- (declare (ignore type-spec alloc))
- `(let ((location ,location))
- (unless (null-pointer-p location)
- (ensure-alien-instance
- (type-from-number (%alien-instance-type-number location))
- location))))
-
-
-
-;;;; Metaclass for subclasses of gtype-class
-
-(eval-when (:compile-toplevel :load-toplevel :execute)
- (defclass gtype-class (alien-class)))
-
-
-(defmethod shared-initialize ((class gtype-class) names
- &rest initargs &key name)
- (declare (ignore initargs names))
- (call-next-method)
- (setf
- (slot-value class 'size)
- (type-instance-size (find-type-number (or name (class-name class))))))
-
-
-(defmethod validate-superclass
- ((class gtype-class) (super pcl::standard-class))
- (subtypep (class-name super) 'gtype))
-
+ `(progn
+ ,@(mapcar
+ #'(lambda (type)
+ (expand-type-definition type (type-options type)))
+ (%sort-types-topologicaly type-list))))))
-(defmethod allocate-alien-storage ((class gtype-class))
- (type-create-instance (find-type-number class)))
+(defmacro define-types-by-introspection (prefix &rest args)
+ (expand-type-definitions prefix args))
-;;;; Initializing type numbers
-(setf (alien-type-name 'invalid) "invalid")
-(setf (alien-type-name 'char) "gchar")
-(setf (alien-type-name 'unsigned-char) "guchar")
-(setf (alien-type-name 'boolean) "gboolean")
-(setf (alien-type-name 'int) "gint")
-(setf (alien-type-name 'unsigned-int) "guint")
-(setf (alien-type-name 'long) "glong")
-(setf (alien-type-name 'unsigned-long) "gulong")
-(setf (alien-type-name 'enum) "GEnum")
-(setf (alien-type-name 'flags) "GFlags")
-(setf (alien-type-name 'single-float) "gfloat")
-(setf (alien-type-name 'double-float) "gdouble")
-(setf (alien-type-name 'string) "gstring")
-(setf (find-type-number 'fixnum) (find-type-number 'int))
~mdw / clg / blobdiff