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(in-package #:mulk.objective-cl)
(defgeneric objc-eql (x y))
(defgeneric objc-equal (x y))
(defun truep (b)
(or (eq b t)
(and (numberp b)
(not (eql b +no+)))))
(defun id-eql (x y)
(pointer-eq (pointer-to x) (pointer-to y)))
(defun id-equal (x y)
(truep (if (typep x '(or id objc-class exception))
(primitive-invoke x :is-equal :char y)
(progn
(assert (typep y '(or id objc-class exception)))
(primitive-invoke y :is-equal :char x)))))
(defun objc-typep (x class-designator)
(objc-eql (object-get-class x)
(etypecase x
(class x)
(id (object-get-class x))
((or string symbol) (find-objc-class class-designator t)))))
(defmethod objc-eql (x y)
(cl:eql x y))
(defmethod objc-eql ((x id) y)
(id-eql x y))
(defmethod objc-eql (x (y id))
(id-eql x y))
(defmethod objc-eql ((x objc-class) y)
(id-eql x y))
(defmethod objc-eql (x (y objc-class))
(id-eql x y))
(defmethod objc-eql ((x exception) y)
(id-eql x y))
(defmethod objc-eql (x (y exception))
(id-eql x y))
(defmethod objc-eql ((x selector) (y selector))
(eql (selector-name x) (selector-name y)))
(defmethod objc-eql ((x selector) (y string))
(eql (selector-name x) y))
(defmethod objc-eql ((x string) (y selector))
(eql x (selector-name y)))
(defmethod objc-equal (x y)
(cl:equal x y))
(defmethod objc-equal ((x id) y)
(id-equal x y))
(defmethod objc-equal (x (y id))
(id-equal x y))
(defmethod objc-equal ((x objc-class) y)
(id-equal x y))
(defmethod objc-equal (x (y objc-class))
(id-equal x y))
(defmethod objc-equal ((x exception) y)
(id-equal x y))
(defmethod objc-equal (x (y exception))
(id-equal x y))
(defmethod objc-equal ((x selector) (y selector))
(equal (selector-name x) (selector-name y)))
(defmethod objc-equal ((x selector) (y string))
(equal (selector-name x) y))
(defmethod objc-equal ((x string) (y selector))
(equal x (selector-name y)))
;;; (@* "Object Representation")
(defmethod print-object ((object id) stream)
(with-slots (pointer) object
(if (cffi:pointer-eq pointer (pointer-to +nil+))
(format stream "#.~S" '+nil+)
(print-unreadable-object (object stream)
(format stream "~A `~A' {~X}"
(objcl-class-name (primitive-invoke object "class" 'id))
(primitive-invoke (primitive-invoke object "description" 'id)
"UTF8String" :string)
(cffi:pointer-address pointer))))))
(defmethod print-object ((class objc-class) stream)
(print-unreadable-object (class stream)
(with-slots (pointer) class
(format stream "~S ~A {~X}"
(type-of class)
(objcl-class-name class)
(cffi:pointer-address pointer)))))
(defmethod print-object ((meta-class objc-meta-class) stream)
(print-unreadable-object (meta-class stream)
(with-slots (meta-class-for-class pointer) meta-class
(format stream "~S ~A {~X}"
(type-of meta-class)
(objcl-class-name meta-class-for-class)
(cffi:pointer-address pointer)))))
(defmethod print-object ((selector selector) stream)
(print-unreadable-object (selector stream)
(format stream "~S `~A'"
(type-of selector)
(selector-name selector))))
(defmethod print-object ((exception exception) stream)
(print-unreadable-object (exception stream)
(format stream "~S ~A {~X}"
(type-of exception)
(primitive-invoke (primitive-invoke exception "name" 'id)
"UTF8String" :string)
(primitive-invoke exception "hash" :unsigned-int))))
;;; (@* "Structure and Union Definition")
(defun make-objc-struct/union-definer (type name-and-options c-names
doc-and-slots)
(let ((struct-name (ctypecase name-and-options
(list (first name-and-options))
(symbol name-and-options)))
(slots (typecase (first doc-and-slots)
(string (rest doc-and-slots))
(t doc-and-slots))))
`(progn
,(if (eq type :struct)
`(defcstruct ,name-and-options ,@doc-and-slots)
`(defcunion ,name-and-options ,@doc-and-slots))
,@(mapcar #'(lambda (slot)
(let ((slot-name (first slot)))
`(defun ,(intern (concatenate 'string
(symbol-name struct-name)
"-"
(symbol-name slot-name))
(symbol-package slot-name))
(struct)
(check-type struct ,(if (eq type :struct)
`(or c-pointer
opaque-struct
tagged-struct)
`(or c-pointer
opaque-union
tagged-union)))
(when (typep struct ,(if (eq type :struct)
`'tagged-struct
`'tagged-union))
(assert (member (struct-name struct)
',c-names
:test #'string=)))
(cffi:foreign-slot-value struct
',struct-name
',slot-name))))
slots))))
(defmacro define-objc-struct (name-and-options c-names &rest doc-and-slots)
"Like CFFI:DEFCSTRUCT except that it provides accessors that check
their arguments according to their struct names."
(make-objc-struct/union-definer :struct name-and-options c-names doc-and-slots))
(defmacro define-objc-union (name-and-options c-names &rest doc-and-slots)
"Like CFFI:DEFCUNION except that it provides accessors that check
their arguments according to their struct names."
(make-objc-struct/union-definer :union name-and-options c-names doc-and-slots))
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