X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/sod/blobdiff_plain/6e2d4b5250ecf9cf82fcb7c5c76bdebca230150b..d908a89e37ea7dcc2b48481b9369417b624decc7:/src/class-output.lisp diff --git a/src/class-output.lisp b/src/class-output.lisp index 31f3214..ee77a2c 100644 --- a/src/class-output.lisp +++ b/src/class-output.lisp @@ -7,7 +7,7 @@ ;;;----- 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 @@ -40,12 +40,10 @@ (defmethod hook-output progn ((ilayout ilayout) reason sequencer) (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))) + (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))) + (dolist (slot (islots-slots islots)) (hook-output slot reason sequencer))) (defmethod hook-output progn ((vtable vtable) reason sequencer) (with-slots (body) vtable @@ -70,7 +68,8 @@ (defmethod hook-output progn ((class sod-class) (reason (eql :h)) sequencer) (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) @@ -141,6 +140,14 @@ (defmethod hook-output progn ((class sod-class) (reason (eql :h)) sequencer) ;; 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) @@ -168,7 +175,7 @@ (defmethod hook-output progn ((class sod-class) (reason (eql :h)) sequencer) 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)) @@ -176,9 +183,9 @@ (defmethod hook-output progn ((class sod-class) (reason (eql :h)) sequencer) (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 @@ -195,9 +202,8 @@ (defmethod hook-output progn ((class sod-class) (reason (eql :h)) 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 ";") @@ -245,9 +251,8 @@ (defmethod hook-output progn ((ichain ichain) (reason (eql :h)) 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) @@ -259,25 +264,27 @@ (defmethod hook-output progn ((vtptr vtable-pointer) (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)))))) + (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 ((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) @@ -285,7 +292,17 @@ (defmethod hook-output progn ((method sod-method) (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 @@ -322,15 +339,15 @@ (defmethod hook-output progn ((vtable vtable) (reason (eql :h)) sequencer) (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) @@ -347,9 +364,8 @@ (defmethod hook-output progn ((vtmsgs vtmsgs) ((subclass :vtmsgs class :end) (format stream "};~2%")))))) -(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)) @@ -362,37 +378,46 @@ (defmethod hook-output progn ((entry method-entry) (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. (export '*instance-class*) -(defvar *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) @@ -425,9 +450,8 @@ (defmethod hook-output progn ((class sod-class) (reason (eql :c)) 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)) @@ -440,18 +464,27 @@ (defmethod hook-output progn ((method delegating-direct-method) ((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 @@ -462,12 +495,29 @@ (defmethod hook-output progn ((method sod-method) ((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)))))) @@ -490,9 +540,8 @@ (defmethod hook-output progn ((vtable vtable) (reason (eql :c)) sequencer) ((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) @@ -520,9 +569,8 @@ (defmethod hook-output progn ((boff base-offset) (reason (eql :c)) sequencer) (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) @@ -549,9 +597,8 @@ (defmethod hook-output progn ((vtmsgs vtmsgs) (reason (eql :c)) sequencer) ((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)) @@ -565,9 +612,8 @@ (defmethod hook-output progn ((entry method-entry) ;;;-------------------------------------------------------------------------- ;;; 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) @@ -580,9 +626,8 @@ (defmethod hook-output progn ((ichain ichain) ((*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) @@ -596,9 +641,8 @@ (defmethod hook-output progn ((islots islots) ((*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) @@ -615,7 +659,7 @@ (defgeneric find-class-initializer (slot class) (let ((dslot (effective-slot-direct-slot slot))) (or (some (lambda (super) (find dslot (sod-class-class-initializers super) - :test #'sod-initializer-slot)) + :key #'sod-initializer-slot)) (sod-class-precedence-list class)) (effective-slot-initializer slot))))) @@ -631,17 +675,12 @@ (defgeneric output-class-initializer (slot instance stream) (: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 @@ -649,9 +688,8 @@ (defmethod hook-output progn ((slot sod-class-effective-slot) ((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)))