+JSObjectRef CYCastJSObject(JSContextRef context, JSValueRef value) {
+ JSValueRef exception(NULL);
+ JSObjectRef object(JSValueToObject(context, value, &exception));
+ CYThrow(context, exception);
+ return object;
+}
+
+JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, JSStringRef name) {
+ JSValueRef exception(NULL);
+ JSValueRef value(JSObjectGetProperty(context, object, name, &exception));
+ CYThrow(context, exception);
+ return value;
+}
+
+void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef value) {
+ JSValueRef exception(NULL);
+ JSObjectSetProperty(context, object, name, value, kJSPropertyAttributeNone, &exception);
+ CYThrow(context, exception);
+}
+