https://issues.dlang.org/show_bug.cgi?id=14108
--- Comment #4 from Timothee Cour <timothee.co...@gmail.com> --- But the argument $key to aa.get(key) doesn't need to be stored, it's just used to retrieve the value with that key if it's there (eg by computing a hash function on the key, which doesn't need key to be immutable). Am I misunderstanding something? --