Improve definition of CYIsClass using meta classes.

diff --git a/ObjectiveC/Library.mm b/ObjectiveC/Library.mm
index 3a422edffc9509efddc57f6fc665f03d01950d26..e94e7973b684bf84cf718255780bbc918399782a 100644 (file)
--- a/ObjectiveC/Library.mm
+++ b/ObjectiveC/Library.mm
@@ -1115,8 +1115,7 @@ NSObject *CYCopyNSObject(apr_pool_t *pool, JSContextRef context, JSValueRef valu
 
 static bool CYIsClass(id self) {
 #ifdef __APPLE__
-    // XXX: this is a lame object_isClass
-    return class_getInstanceMethod(object_getClass(self), @selector(alloc)) != NULL;
+    return class_isMetaClass(object_getClass(self));
 #else
     return GSObjCIsClass(self);
 #endif