;;;----- Licensing notice ---------------------------------------------------
;;;
-;;; This file is part of the Sensble Object Design, an object system for C.
+;;; This file is part of the Sensible Object Design, an object system for C.
;;;
;;; SOD is free software; you can redistribute it and/or modify
;;; it under the terms of the GNU General Public License as published by
(cl:in-package #:sod)
+;;;--------------------------------------------------------------------------
+;;; Walking the layout tree.
+
+(defmethod hook-output progn ((class sod-class) reason sequencer)
+ (with-slots ((ilayout %ilayout) vtables methods effective-methods) class
+ (hook-output ilayout reason sequencer)
+ (dolist (method methods) (hook-output method reason sequencer))
+ (dolist (method effective-methods) (hook-output method reason sequencer))
+ (dolist (vtable vtables) (hook-output vtable reason sequencer))))
+
+(defmethod hook-output progn ((ilayout ilayout) reason sequencer)
+ (with-slots (ichains) ilayout
+ (dolist (ichain ichains) (hook-output ichain reason sequencer))))
+
+(defmethod hook-output progn ((ichain ichain) reason sequencer)
+ (dolist (item (ichain-body ichain)) (hook-output item reason sequencer)))
+
+(defmethod hook-output progn ((islots islots) reason sequencer)
+ (dolist (slot (islots-slots islots)) (hook-output slot reason sequencer)))
+
+(defmethod hook-output progn ((vtable vtable) reason sequencer)
+ (with-slots (body) vtable
+ (dolist (item body) (hook-output item reason sequencer))))
+
+(defmethod hook-output progn ((vtmsgs vtmsgs) reason sequencer)
+ (with-slots (entries) vtmsgs
+ (dolist (entry entries) (hook-output entry reason sequencer))))
+
;;;--------------------------------------------------------------------------
;;; Classes.
(class :vtmsgs :start) (class :vtmsgs :end)
(class :vtables :start) (class :vtables :end)
(class :vtable-externs) (class :vtable-externs-after)
- (class :methods :start) (class :methods) (class :methods :end)
+ (class :methods :start) (class :methods :defs)
+ (class :methods) (class :methods :end)
(class :ichains :start) (class :ichains :end)
(class :ilayout :start) (class :ilayout :slots) (class :ilayout :end)
(class :conversions)
(metaroot (find-root-metaclass class)))
(format stream "/* The class object. */~@
extern const struct ~A ~A__classobj;~@
- #define ~:*~A__class (&~:*~A__classobj.~A.~A)~2%"
+ #define ~:*~A__class (&~:*~A__classobj.~A.~A)~%"
(ilayout-struct-tag metaclass) class
(sod-class-nickname (sod-class-chain-head metaroot))
- (sod-class-nickname metaroot)))))
+ (sod-class-nickname metaroot))
+ (dolist (chain (sod-class-chains metaclass))
+ (let ((tail (car chain)))
+ (unless (eq tail metaroot)
+ (format stream "#define ~A__cls_~A (&~2:*~A__classobj.~A.~A)~%"
+ class (sod-class-nickname (sod-class-chain-head tail))
+ (sod-class-nickname tail)))))
+ (terpri stream))))
;; Maybe generate an islots structure.
(when (sod-class-slots class)
;; We need each message's method entry type for this, so we need to dig it
;; out of the vtmsgs structure. Indeed, the vtmsgs for this class contains
;; entries for precisely the messages we want to make macros for.
+ (when (some (lambda (message)
+ (or (keyword-message-p message)
+ (varargs-message-p message)))
+ (sod-class-messages class))
+ (one-off-output 'varargs-macros sequencer :early-decls
+ (lambda (stream)
+ (format stream
+ "~%SOD__VARARGS_MACROS_PREAMBLE~%"))))
(when (sod-class-messages class)
(sequence-output (stream sequencer)
((class :message-macros)
raw-name)))
(cond ((and (cdr args) (eq (cadr args) :ellipsis))
(setf varargsp t)
- (unless in-names (setf me "SOD_CAR(__VA_ARGS__)"))
+ (unless in-names (setf me "SOD__CAR(__VA_ARGS__)"))
(push (format nil "/*~A*/ ..." name) in-names)
(push "__VA_ARGS__" out-names)
(return))
(push name in-names)
(push name out-names)))))
(when varargsp
- (format stream "#if __STDC_VERSION__ >= 199901~%"))
+ (format stream "#ifdef SOD__HAVE_VARARGS_MACROS~%"))
(format stream "#define ~A(~{~A~^, ~}) ~
- ~A->_vt->~A.~A(~{~A~^, ~})~%"
+ (~A)->_vt->~A.~A(~{~A~^, ~})~%"
(message-macro-name class entry)
(nreverse in-names)
me
(terpri stream)))))
;; Generate vtmsgs structure for all superclasses.
- (hook-output (car (sod-class-vtables class))
- 'vtmsgs
- sequencer))
-
-(defmethod hook-output progn ((class sod-class) reason sequencer)
- (with-slots ((ilayout %ilayout) vtables methods effective-methods) class
- (hook-output ilayout reason sequencer)
- (dolist (method methods) (hook-output method reason sequencer))
- (dolist (method effective-methods) (hook-output method reason sequencer))
- (dolist (vtable vtables) (hook-output vtable reason sequencer))))
+ (hook-output (car (sod-class-vtables class)) 'vtmsgs sequencer))
;;;--------------------------------------------------------------------------
;;; Instance structure.
-(defmethod hook-output progn ((slot sod-slot)
- (reason (eql 'islots))
- sequencer)
+(defmethod hook-output progn
+ ((slot sod-slot) (reason (eql 'islots)) sequencer)
(sequence-output (stream sequencer)
(((sod-slot-class slot) :islots :slots)
(pprint-logical-block (stream nil :prefix " " :suffix ";")
(pprint-c-type (sod-slot-type slot) stream (sod-slot-name slot)))
(terpri stream))))
-(defmethod hook-output progn ((ilayout ilayout) reason sequencer)
- (with-slots (ichains) ilayout
- (dolist (ichain ichains) (hook-output ichain reason sequencer))))
-
-(defmethod hook-output progn ((ichain ichain) reason sequencer)
- (dolist (item (ichain-body ichain))
- (hook-output item reason sequencer)))
-
(defmethod hook-output progn ((ilayout ilayout) (reason (eql :h)) sequencer)
(with-slots ((class %class) ichains) ilayout
(sequence-output (stream sequencer)
(sod-class-nickname super)))
(sod-class-chain chain-tail))))))))
-(defmethod hook-output progn ((ichain ichain)
- (reason (eql 'ilayout))
- sequencer)
+(defmethod hook-output progn
+ ((ichain ichain) (reason (eql 'ilayout)) sequencer)
(with-slots ((class %class) chain-head chain-tail) ichain
(sequence-output (stream sequencer)
((class :ilayout :slots)
(reason (eql :h))
sequencer)
(with-slots ((class %class) chain-head chain-tail) vtptr
- (sequence-output (stream sequencer)
- ((class :ichain chain-head :slots)
- (format stream " const struct ~A *_vt;~%"
- (vtable-struct-tag chain-tail chain-head))))))
-
-(defmethod hook-output progn ((islots islots) reason sequencer)
- (dolist (slot (islots-slots islots))
- (hook-output slot reason sequencer)))
+ (when (eq class chain-tail)
+ (sequence-output (stream sequencer)
+ ((class :ichain chain-head :slots)
+ (format stream " const struct ~A *_vt;~%"
+ (vtable-struct-tag chain-tail chain-head)))))))
(defmethod hook-output progn ((islots islots) (reason (eql :h)) sequencer)
(with-slots ((class %class) subclass slots) islots
- (sequence-output (stream sequencer)
- ((subclass :ichain (sod-class-chain-head class) :slots)
- (format stream " struct ~A ~A;~%"
- (islots-struct-tag class)
- (sod-class-nickname class))))))
+ (let ((head (sod-class-chain-head class)))
+ (when (eq head (sod-class-chain-head subclass))
+ (sequence-output (stream sequencer)
+ ((subclass :ichain (sod-class-chain-head class) :slots)
+ (format stream " struct ~A ~A;~%"
+ (islots-struct-tag class)
+ (sod-class-nickname class))))))))
;;;--------------------------------------------------------------------------
;;; Vtable structure.
-(defmethod hook-output progn ((vtable vtable) reason sequencer)
- (with-slots (body) vtable
- (dolist (item body) (hook-output item reason sequencer))))
-
-(defmethod hook-output progn ((method sod-method)
- (reason (eql :h))
- sequencer)
+(defmethod hook-output progn
+ ((method sod-method) (reason (eql :h)) sequencer)
(with-slots ((class %class)) method
(sequence-output (stream sequencer)
((class :methods)
(princ "extern " stream)
(pprint-c-type (commentify-function-type type) stream
(sod-method-function-name method))
- (format stream ";~%"))))))
+ (format stream ";~%")))
+ ((class :methods :defs)
+ (let* ((type (sod-method-type method))
+ (keys (and (typep type 'c-keyword-function-type)
+ (c-function-keywords type))))
+ (when keys
+ (format stream "struct ~A {~%~
+ ~{ unsigned ~A: 1;~%~}~
+ };~2%"
+ (direct-method-suppliedp-struct-tag method)
+ (mapcar #'argument-name keys))))))))
(defmethod hook-output progn ((vtable vtable) (reason (eql :h)) sequencer)
(with-slots ((class %class) chain-head chain-tail) vtable
(defmethod hook-output progn ((vtmsgs vtmsgs) (reason (eql :h)) sequencer)
(with-slots ((class %class) subclass chain-head chain-tail) vtmsgs
- (sequence-output (stream sequencer)
- ((subclass :vtable chain-head :slots)
- (format stream " struct ~A ~A;~%"
- (vtmsgs-struct-tag subclass class)
- (sod-class-nickname class))))))
+ (when (eq subclass chain-tail)
+ (sequence-output (stream sequencer)
+ ((subclass :vtable chain-head :slots)
+ (format stream " struct ~A ~A;~%"
+ (vtmsgs-struct-tag subclass class)
+ (sod-class-nickname class)))))))
-(defmethod hook-output progn ((vtmsgs vtmsgs)
- (reason (eql 'vtmsgs))
- sequencer)
+(defmethod hook-output progn
+ ((vtmsgs vtmsgs) (reason (eql 'vtmsgs)) sequencer)
(when (vtmsgs-entries vtmsgs)
(with-slots ((class %class) subclass) vtmsgs
(sequence-output (stream sequencer)
((subclass :vtmsgs class :end)
(format stream "};~2%"))))))
-(defmethod hook-output progn ((vtmsgs vtmsgs) reason sequencer)
- (with-slots (entries) vtmsgs
- (dolist (entry entries) (hook-output entry reason sequencer))))
-
-(defmethod hook-output progn ((entry method-entry)
- (reason (eql 'vtmsgs))
- sequencer)
+(defmethod hook-output progn
+ ((entry method-entry) (reason (eql 'vtmsgs)) sequencer)
(let* ((method (method-entry-effective-method entry))
(message (effective-method-message method))
(class (effective-method-class method))
(pprint-c-type pointer-type stream (method-entry-slot-name entry)))
(terpri stream)))))
-(defmethod hook-output progn ((cptr class-pointer)
- (reason (eql :h))
- sequencer)
+(defmethod hook-output progn
+ ((cptr class-pointer) (reason (eql :h)) sequencer)
(with-slots ((class %class) chain-head metaclass meta-chain-head) cptr
- (sequence-output (stream sequencer)
- ((class :vtable chain-head :slots)
- (format stream " const ~A *~:[_class~;~:*_cls_~A~];~%"
- metaclass
- (and (sod-class-direct-superclasses meta-chain-head)
- (sod-class-nickname meta-chain-head)))))))
+ (when (eq chain-head (sod-class-chain-head class))
+ (sequence-output (stream sequencer)
+ ((class :vtable chain-head :slots)
+ (format stream " const ~A *~:[_class~;~:*_cls_~A~];~%"
+ metaclass
+ (and (sod-class-direct-superclasses meta-chain-head)
+ (sod-class-nickname meta-chain-head))))))))
(defmethod hook-output progn ((boff base-offset) (reason (eql :h)) sequencer)
(with-slots ((class %class) chain-head) boff
- (sequence-output (stream sequencer)
- ((class :vtable chain-head :slots)
- (write-line " size_t _base;" stream)))))
+ (when (eq chain-head (sod-class-chain-head class))
+ (sequence-output (stream sequencer)
+ ((class :vtable chain-head :slots)
+ (write-line " size_t _base;" stream))))))
-(defmethod hook-output progn ((choff chain-offset)
- (reason (eql :h))
- sequencer)
+(defmethod hook-output progn
+ ((choff chain-offset) (reason (eql :h)) sequencer)
(with-slots ((class %class) chain-head target-head) choff
- (sequence-output (stream sequencer)
- ((class :vtable chain-head :slots)
- (format stream " ptrdiff_t _off_~A;~%"
- (sod-class-nickname target-head))))))
+ (when (eq chain-head (sod-class-chain-head class))
+ (sequence-output (stream sequencer)
+ ((class :vtable chain-head :slots)
+ (format stream " ptrdiff_t _off_~A;~%"
+ (sod-class-nickname target-head)))))))
;;;--------------------------------------------------------------------------
;;; Implementation output.
-(defvar *instance-class*)
+(export '*instance-class*)
+(defvar *instance-class* nil
+ "The class currently being output.
+
+ This is bound during the `hook-output' traversal of a class layout for
+ `:c' output, since some of the objects traversed actually `belong' to
+ superclasses and there's no other way to find out what the reference class
+ actually is.
+
+ It may be bound at other times.")
(defmethod hook-output progn ((class sod-class) (reason (eql :c)) sequencer)
(sequence-output (stream sequencer)
(let ((*instance-class* class))
(hook-output (sod-class-ilayout (sod-class-metaclass class))
- 'class
- sequencer)))
+ 'class sequencer)))
;;;--------------------------------------------------------------------------
;;; Direct and effective methods.
-(defmethod hook-output progn ((method delegating-direct-method)
- (reason (eql :c))
- sequencer)
+(defmethod hook-output progn
+ ((method delegating-direct-method) (reason (eql :c)) sequencer)
(with-slots ((class %class) body) method
(unless body
(return-from hook-output))
((class :direct-method method :end)
(format stream "#undef CALL_NEXT_METHOD~%")))))
-(defmethod hook-output progn ((method sod-method)
- (reason (eql :c))
- sequencer)
- (with-slots ((class %class) body) method
+(defmethod hook-output progn
+ ((method sod-method) (reason (eql :c)) sequencer)
+ (with-slots ((class %class) role body message) method
(unless body
(return-from hook-output))
(sequence-output (stream sequencer)
:constraint ((class :direct-methods :start)
+ (class :direct-method method :banner)
(class :direct-method method :start)
(class :direct-method method :body)
(class :direct-method method :end)
(class :direct-methods :end))
+ ((class :direct-method method :banner)
+ (format-banner-comment stream "Direct ~@[~(~A~) ~]method ~:_~
+ on `~A.~A' ~:_defined by `~A'."
+ role
+ (sod-class-nickname
+ (sod-message-class message))
+ (sod-message-name message)
+ class)
+ (fresh-line stream))
((class :direct-method method :body)
(pprint-c-type (sod-method-function-type method)
stream
((class :direct-method method :end)
(terpri stream)))))
-(defmethod hook-output progn ((method basic-effective-method)
- (reason (eql :c))
- sequencer)
+(defmethod hook-output progn
+ ((method basic-effective-method) (reason (eql :c)) sequencer)
(with-slots ((class %class) functions) method
(sequence-output (stream sequencer)
((class :effective-methods)
+ (let* ((keys (effective-method-keywords method))
+ (message (effective-method-message method))
+ (msg-class (sod-message-class message)))
+ (when keys
+ (format-banner-comment stream "Keyword argument structure ~:_~
+ for `~A.~A' ~:_on class `~A'."
+ (sod-class-nickname msg-class)
+ (sod-message-name message)
+ class)
+ (format stream "~&struct ~A {~%"
+ (effective-method-keyword-struct-tag method))
+ (format stream "~{ unsigned ~A__suppliedp: 1;~%~}"
+ (mapcar #'argument-name keys))
+ (dolist (key keys)
+ (write-string " " stream)
+ (pprint-c-type (argument-type key) stream (argument-name key))
+ (format stream ";~%"))
+ (format stream "};~2%")))
(dolist (func functions)
(write func :stream stream :escape nil :circle nil))))))
((class :vtable chain-head :end)
(format stream "} };~2%")))))
-(defmethod hook-output progn ((cptr class-pointer)
- (reason (eql :c))
- sequencer)
+(defmethod hook-output progn
+ ((cptr class-pointer) (reason (eql :c)) sequencer)
(with-slots ((class %class) chain-head metaclass meta-chain-head) cptr
(sequence-output (stream sequencer)
:constraint ((class :vtable chain-head :start)
(ilayout-struct-tag class)
(sod-class-nickname chain-head))))))
-(defmethod hook-output progn ((choff chain-offset)
- (reason (eql :c))
- sequencer)
+(defmethod hook-output progn
+ ((choff chain-offset) (reason (eql :c)) sequencer)
(with-slots ((class %class) chain-head target-head) choff
(sequence-output (stream sequencer)
:constraint ((class :vtable chain-head :start)
((subclass :vtable chain-head :vtmsgs class :end)
(format stream " },~%")))))
-(defmethod hook-output progn ((entry method-entry)
- (reason (eql :c))
- sequencer)
+(defmethod hook-output progn
+ ((entry method-entry) (reason (eql :c)) sequencer)
(with-slots ((method %method) chain-head chain-tail role) entry
(let* ((message (effective-method-message method))
(class (effective-method-class method))
;;;--------------------------------------------------------------------------
;;; Filling in the class object.
-(defmethod hook-output progn ((ichain ichain)
- (reason (eql 'class))
- sequencer)
+(defmethod hook-output progn
+ ((ichain ichain) (reason (eql 'class)) sequencer)
(with-slots ((class %class) chain-head) ichain
(sequence-output (stream sequencer)
:constraint ((*instance-class* :object :start)
((*instance-class* :object chain-head :ichain :end)
(format stream " } },~%")))))
-(defmethod hook-output progn ((islots islots)
- (reason (eql 'class))
- sequencer)
+(defmethod hook-output progn
+ ((islots islots) (reason (eql 'class)) sequencer)
(with-slots ((class %class)) islots
(let ((chain-head (sod-class-chain-head class)))
(sequence-output (stream sequencer)
((*instance-class* :object class :slots :end)
(format stream " },~%"))))))
-(defmethod hook-output progn ((vtptr vtable-pointer)
- (reason (eql 'class))
- sequencer)
+(defmethod hook-output progn
+ ((vtptr vtable-pointer) (reason (eql 'class)) sequencer)
(with-slots ((class %class) chain-head chain-tail) vtptr
(sequence-output (stream sequencer)
:constraint ((*instance-class* :object chain-head :ichain :start)
(vtable-name class chain-head)
(sod-class-nickname chain-tail))))))
-(defgeneric find-class-initializer (slot class)
- (:method ((slot effective-slot) (class sod-class))
- (let ((dslot (effective-slot-direct-slot slot)))
- (or (some (lambda (super)
- (find dslot (sod-class-class-initializers super)
- :test #'sod-initializer-slot))
- (sod-class-precedence-list class))
- (effective-slot-initializer slot)))))
-
(defgeneric output-class-initializer (slot instance stream)
(:method ((slot sod-class-effective-slot) (instance sod-class) stream)
(let ((func (effective-slot-initializer-function slot))
(:method ((slot effective-slot) (instance sod-class) stream)
(let ((init (find-class-initializer slot instance))
(direct-slot (effective-slot-direct-slot slot)))
- (ecase (sod-initializer-value-kind init)
- (:simple (format stream " /* ~15@A = */ ~A,~%"
- (sod-slot-name direct-slot)
- (sod-initializer-value-form init)))
- (:compound (format stream " /* ~15@A = */ ~@<{ ~;~A~; },~:>~%"
- (sod-slot-name direct-slot)
- (sod-initializer-value-form init)))))))
-
-(defmethod hook-output progn ((slot sod-class-effective-slot)
- (reason (eql 'class))
- sequencer)
+ (format stream " /* ~15@A = */ ~A,~%"
+ (sod-slot-name direct-slot)
+ (sod-initializer-value init)))))
+
+(defmethod hook-output progn
+ ((slot sod-class-effective-slot) (reason (eql 'class)) sequencer)
(let ((instance *instance-class*)
(func (effective-slot-prepare-function slot)))
(when func
((instance :object :prepare)
(funcall func instance stream))))))
-(defmethod hook-output progn ((slot effective-slot)
- (reason (eql 'class))
- sequencer)
+(defmethod hook-output progn
+ ((slot effective-slot) (reason (eql 'class)) sequencer)
(with-slots ((class %class) (dslot slot)) slot
(let ((instance *instance-class*)
(super (sod-slot-class dslot)))
~mdw / sod / blobdiff