annotate tests/impl.lac @ 211:e86411f647c6

Initial type class support
author Adam Chlipala <adamc@hcoop.net>
date Sat, 16 Aug 2008 14:32:18 -0400
parents 9a578171de9e
children
rev   line source
adamc@15 1 val id = fn t :: Type => fn x : t => x
adamc@15 2 val id_self = id [t :: Type -> t -> t] id
adamc@15 3
adamc@15 4 val idi = fn t ::: Type => fn x : t => x
adamc@15 5 val idi_self = idi idi
adamc@17 6
adamc@17 7 val picker = fn na :: Name => fn a ::: Type => fn nb :: Name => fn b ::: Type => fn fs ::: {Type} =>
adamc@17 8 fn r : $([na = a, nb = b] ++ fs) => {na = r.na, nb = r.nb}
adamc@17 9 val getem = picker [#A] [#C] {A = 0, B = 1.0, C = "hi", D = {}}
adamc@18 10 val getem2 = picker [#A] [_] {A = 0, B = 1.0, C = "hi", D = {}}
adamc@18 11 val getem3 = picker [#A] [_::Name] {A = 0, B = 1.0, C = "hi", D = {}}
adamc@17 12
adamc@17 13 val picker_ohmy = fn na ::: Name => fn a ::: Type => fn nb ::: Name => fn b ::: Type => fn fs ::: {Type} =>
adamc@17 14 fn r : $([na = a, nb = b] ++ fs) => {na = r.na, nb = r.nb}
adamc@17 15 val getem_ohmy = picker_ohmy {A = 0, B = 1.0, C = "hi", D = {}}