https://issues.dlang.org/show_bug.cgi?id=10009
--- Comment #28 from [email protected] --- Yeah, built-in AA types should not introduce overhead for features user code may never even use. What we really need, is a nice, well-optimized sorted dictionary container in std.container that overloads the AA operators. Once Igor's PRs implementing AA literal support in dmd/druntime has been merged, we might even stand a chance of making this library type interoperable with AA literals, which would greatly reduce the need to add any more complications to the built-in AA's. --
