Add check to prevent loading more than one Kotlin framework

2018-03-07 17:17:25 +03:00
parent 0570e281a9
commit 79b0dc5652
1 changed files with 11 additions and 0 deletions
@@ -897,4 +897,15 @@ extern "C" void Kotlin_ObjCExport_AbstractMethodCalled(id self, SEL selector) {
        class_getName(object_getClass(self)), sel_getName(selector)];
 }

+__attribute__((constructor))
+static void checkLoadedOnce() {
+  Class marker = objc_allocateClassPair([NSObject class], "KotlinFrameworkLoadedOnceMarker", 0);
+  if (marker == nullptr) {
+    [NSException raise:NSGenericException
+          format:@"Only one Kotlin framework can be loaded currently"];
+  } else {
+    objc_registerClassPair(marker);
+  }
+}
+
 #endif // KONAN_OBJC_INTEROP