+/* Cydia - iPhone UIKit Front-End for Debian APT
+ * Copyright (C) 2008-2013 Jay Freeman (saurik)
+*/
+
+/* GNU General Public License, Version 3 {{{ */
+/*
+ * Cydia is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, either version 3 of the License,
+ * or (at your option) any later version.
+ *
+ * Cydia is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Cydia. If not, see <http://www.gnu.org/licenses/>.
+**/
+/* }}} */
+
+#ifndef Substrate_HPP
+#define Substrate_HPP
+
+#include <objc/runtime.h>
+
+template <typename Type_>
+static inline Type_ &MSHookIvar(id self, const char *name) {
+ Ivar ivar(class_getInstanceVariable(object_getClass(self), name));
+ void *pointer(ivar == NULL ? NULL : reinterpret_cast<char *>(self) + ivar_getOffset(ivar));
+ return *reinterpret_cast<Type_ *>(pointer);
+}
+
+#define MSHook(type, name, args...) \
+ static type (*_ ## name)(args); \
+ static type $ ## name(args)
+
+#endif//Substrate_HPP