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comparison tests/impl.ur @ 1093:8d3aa6c7cee0

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Make summary unification more conservative; infer implicit arguments after applications
author Adam Chlipala <adamc@hcoop.net>
date Sat, 26 Dec 2009 11:56:40 -0500
parents 71bafe66dbe1
children
comparison
equal deleted inserted replaced
1092:6f4b05fc4361 1093:8d3aa6c7cee0
1 val id = fn t :: Type => fn x : t => x 1 fun id [t :: Type] (x : t) = x
2 val id_self = id [t :: Type -> t -> t] id 2 val id_self = id [t :: Type -> t -> t] id
3 3
4 val idi = fn t ::: Type => fn x : t => x 4 fun idi [t ::: Type] (x : t) = x
5 val idi_self = idi idi 5 val idi_self = idi @@idi
6 6
7 val picker = fn na :: Name => fn a ::: Type => fn nb :: Name => fn b ::: Type => fn fs ::: {Type} => 7 fun picker [na :: Name] [a ::: Type] [nb :: Name] [b ::: Type] [fs ::: {Type}] [[na] ~ [nb]] [[na, nb] ~ fs]
8 fn r : $([na = a, nb = b] ++ fs) => {na = r.na, nb = r.nb} 8 (r : $([na = a, nb = b] ++ fs)) = {na = r.na, nb = r.nb}
9 val getem = picker [#A] [#C] {A = 0, B = 1.0, C = "hi", D = {}} 9 val getem = picker [#A] [#C] {A = 0, B = 1.0, C = "hi", D = {}}
10 val getem2 = picker [#A] [_] {A = 0, B = 1.0, C = "hi", D = {}} 10 val getem2 = picker [#A] [_] {A = 0, B = 1.0, C = "hi", D = {}}
11 val getem3 = picker [#A] [_::Name] {A = 0, B = 1.0, C = "hi", D = {}} 11 val getem3 = picker [#A] [_::Name] {A = 0, B = 1.0, C = "hi", D = {}}
12 12
13 val picker_ohmy = fn na ::: Name => fn a ::: Type => fn nb ::: Name => fn b ::: Type => fn fs ::: {Type} => 13 fun picker_ohmy [na ::: Name] [a ::: Type] [nb ::: Name] [b ::: Type] [fs ::: {Type}] [[na] ~ [nb]] [[na, nb] ~ fs]
14 fn r : $([na = a, nb = b] ++ fs) => {na = r.na, nb = r.nb} 14 (r : $([na = a, nb = b] ++ fs)) = {na = r.na, nb = r.nb}
15 val getem_ohmy = picker_ohmy {A = 0, B = 1.0, C = "hi", D = {}} 15 val getem_ohmy = picker_ohmy {A = 0, B = 1.0, C = "hi", D = {}}
16
17 fun proj [fs] [t] [nm :: Name] [[nm] ~ fs] (r : $([nm = t] ++ fs)) = r.nm
18 val one = proj [#A] {A = 1, B = True}