Changeset 14821

Timestamp:

Jun 12, 2011, 4:38:20 AM (10 years ago)

Author:

gb

Message:

Move along. Nothing to see here.

Location:

trunk/source/objc-bridge

Files:

• objc-runtime.lisp (modified) (1 diff)
• objc-support.lisp (modified) (2 diffs)

trunk/source/objc-bridge/objc-runtime.lisp

@@ -2611 +2611 @@
       (objc-private-class-id classptr)))
 
+;;; The World's Most Advanced Operating System keeps getting better!
+#+(or apple-objc-2.0 apple-objc)
+(defun objc-hidden-class-id (classptr)
+  ;; This should only be called on something for which OBJC-CLASS-ID and OBJC-PRIVATE-CLASS-ID
+  ;; both return false.
+  ;; If CLASSPTR looks enough like an ObjC class, register it as a private class and return
+  ;; the private class ID.
+  ;; This wouldn't be necessary if the ObjC class hierarchy wasn't broken.
+  (unless (%null-ptr-p classptr)
+    (with-macptrs (meta metameta)
+      (safe-get-ptr classptr meta)
+      (unless (%null-ptr-p meta)
+        (safe-get-ptr meta metameta)
+        (when (and (eql metameta (find-class 'ns::+ns-object nil))
+                   (%objc-metaclass-p meta))
+          (let* ((classptr (%inc-ptr classptr 0)))
+            (install-foreign-objc-class classptr nil)
+            (objc-private-class-id classptr)))))))
+
+(defun tagged-objc-instance-p (p)
+  (let* ((tag (logand (the natural (%ptr-to-int p)) #xf)))
+    (declare (fixnum tag))
+    (if (logbitp 0 tag)
+      tag)))
 
 (defun %objc-instance-class-index (p)
   (unless (%null-ptr-p p)
-    (if (with-macptrs (q)
-          (safe-get-ptr p q)
-          (not (%null-ptr-p q)))
-      (with-macptrs ((parent #+(or apple-objc cocotron-objc) (pref p :objc_object.isa)
-                             #+gnu-objc (pref p :objc_object.class_pointer)))
-        (or
-         (objc-class-id parent)
-         (objc-private-class-id parent))))))
+    (let* ((tag (tagged-objc-instance-p p)))
+      (if tag
+        (objc-tagged-instance-class-index tag)
+        (if (with-macptrs (q)
+              (safe-get-ptr p q)
+              (not (%null-ptr-p q)))
+          (with-macptrs ((parent #+(or apple-objc cocotron-objc) (pref p :objc_object.isa)
+                                 #+gnu-objc (pref p :objc_object.class_pointer)))
+            (or
+             (objc-class-id parent)
+             (objc-private-class-id parent)
+             #+(or apple-objc-2.0 apple-objc)
+             (objc-hidden-class-id parent))))))))
 
 

trunk/source/objc-bridge/objc-support.lisp

@@ -8 +8 @@
 (defun allocate-objc-object (class)
   (#/alloc class))
+
+
 
 (defun conforms-to-protocol (thing protocol)
@@ -665 +667 @@
   (objc-message-send instance "release"))
 
+(defloadvar *tagged-instance-class-indices*
+  (let* ((alist ()))
+    ;; There should be a better way of doing this.  (A much better way.)
+      (let* ((instance (#/initWithInt: (#/alloc ns:ns-number) 0))
+             (tag (tagged-objc-instance-p instance)))
+        (if tag
+          (let* ((class (objc-message-send instance "class")))
+            (unless (%null-ptr-p class)
+              (install-foreign-objc-class class nil)
+              (push (cons tag (objc-class-or-private-class-id class)) alist)))
+          (#/release instance)))
+      alist))
+
+(defun objc-tagged-instance-class-index (tag)
+  (cdr (assoc tag *tagged-instance-class-indices* :test #'eq)))
+
 
 (provide "OBJC-SUPPORT")