• Iustin Pop's avatar
    htools: add partial implementation of lib/objects.py · b1e81520
    Iustin Pop authored
    This is partial since not all object types can be easily converted for
    now (will need some changes on the Python side for this).
    Most importantly, the *Params types do not have a good solution now:
    the Python code, due to its dynamic typing, hides the fact that we
    actually have two different types at play: a full type which needs to
    have all keys, and the 'partial' type which has slightly different
    behaviour. I've implemented these in Haskell as two different types,
    Full* and Partial*, which are derived automatically from a single
    Parameter type, together with the associated Fill* functions.
    Furthermore, HVParams is even more special, as its contents is not
    fixed but varies per hypervisor type, plus it has the HV_GLOBALS part
    which should not be customisable at instance type (yay for
    exceptions). As such, this should be written in Haskell as a
    multi-constructor type, but it's the only one so far and thus we don't
    have support for it yet.
    Signed-off-by: default avatarIustin Pop <iustin@google.com>
    Reviewed-by: default avatarGuido Trotter <ultrotter@google.com>