Make the slot-* functions work for C++ class attributes.
src/overload-resolution.lisp
Sat Apr 3 14:04:39 CEST 2010 Tobias Rautenkranz <tobias@rautenkranz.ch>
* Make the slot-* functions work for C++ class attributes.
Allow slot-value to be used to access C++ member variables of objects.
--- old-smoke/src/overload-resolution.lisp 2014-10-30 08:05:44.000000000 +0100
+++ new-smoke/src/overload-resolution.lisp 2014-10-30 08:05:44.000000000 +0100
@@ -529,7 +529,6 @@
(condition-class condition)
(condition-arguments condition)))))
-
(defun call-using-args (object-or-class name arguments)
"Calls the method NAME of OBJECT-OR-CLASS with ARGUMENTS."
(declare (optimize (speed 3))
@@ -554,3 +553,28 @@
(null-pointer)
(cast object-or-class (get-class method)))
sequence arguments)))
+
+(defmethod slot-missing ((class smoke-standard-class) object slot-name operation &optional new-value)
+ (let ((method (find-smoke-method (class-of object) (lisp-to-cxx (string slot-name)))))
+ (if (not (valid-p method))
+ (call-next-method)
+ (ecase operation
+ (setf
+ (handler-case (funcall (fdefinition
+ (intern
+ (concatenate 'string "SET-"
+ (string-upcase
+ (string slot-name)))
+ :cxx))
+ object new-value)
+ (undefined-function ()
+ (error "The C++ attribute ~A of ~A is read only." slot-name object))
+ (no-applicable-cxx-method (condition)
+ (if (null (viable-functions (condition-method condition)
+ (length (condition-arguments condition))
+ (condition-class condition)))
+ (error "The C++ attribute ~A of ~A is read only." slot-name object)
+ (error condition)))))
+ (slot-boundp t)
+ (slot-makunbound (error "Can not unbind the C++ attribute ~A of ~A." slot-name object))
+ (slot-value (s-call method (cast object (get-class method))))))))