Type Definition js::jsapi::JSFunToStringOp

type JSFunToStringOp = Option<unsafe extern "C" fn(cx: *mut JSContext, obj: HandleObject, indent: c_uint) -> *mut JSString>;

The type of ObjectOps::funToString. This callback allows an object to provide a custom string to use when Function.prototype.toString is invoked on that object. A null return value means OOM.