Vincent Chen <noodle...@gmail.com> writes:

> - Use something else than records to model structs (suggestions welcome)?

Maps.

Records have concrete Java types, which allows them to implement
interfaces and participate in protocols.  Fields defined on a record
type are backed by JVM object fields, which can increase performance.
But there are no strictness benefits – a record may have any number of
additional keys associated to values:

    (defrecord Foo [bar])
    ;;=> user.Foo
    (map->Foo {:bar 1, :baz 2})
    ;;=> #user.Foo{:bar 1, :baz 2}
    (class (map->Foo {:bar 1, :baz 2}))
    ;;=> user.Foo

So my suggestion would be to instead turn your `struct` definitions into
functions validating that the expected fields are present within plain
maps.  (Assuming some sort of strictness/validation is the goal.)

-Marshall

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