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-rw-r--r--libobjc/objc/runtime.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/libobjc/objc/runtime.h b/libobjc/objc/runtime.h
index 27ecabf..0bbd7e9 100644
--- a/libobjc/objc/runtime.h
+++ b/libobjc/objc/runtime.h
@@ -336,6 +336,28 @@ objc_EXPORT Property class_getProperty (Class class_, const char *propertyName);
objc_EXPORT Property * class_copyPropertyList
(Class class_, unsigned int *numberOfReturnedProperties);
+/* Return the ivar layout for class 'class_'.
+
+ At the moment this function always returns NULL. */
+objc_EXPORT const char * class_getIvarLayout (Class class_);
+
+/* Return the weak ivar layout for class 'class_'.
+
+ At the moment this function always returns NULL. */
+objc_EXPORT const char * class_getWeakIvarLayout (Class class_);
+
+/* Set the ivar layout for class 'class_'.
+
+ At the moment, this function does nothing. */
+objc_EXPORT void class_setIvarLayout (Class class_, const char *layout);
+
+/* Set the weak ivar layout for class 'class_'.
+
+ At the moment, this function does nothing. With the GNU runtime,
+ you should use class_ivar_set_gcinvisible () to hide variables from
+ the Garbage Collector. */
+objc_EXPORT void class_setWeakIvarLayout (Class class_, const char *layout);
+
/** Implementation: the following functions are in class.c. */