annotate tests/impl.ur @ 1722:f7d9dc5d57eb
Antiquote for PRIMARY KEY
| author |
Adam Chlipala <adam@chlipala.net> |
| date |
Sat, 21 Apr 2012 15:47:02 -0400 |
| parents |
8d3aa6c7cee0 |
| children |
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| rev |
line source |
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adamc@1093
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1 fun id [t :: Type] (x : t) = x
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adamc@15
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2 val id_self = id [t :: Type -> t -> t] id
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adamc@15
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3
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adamc@1093
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4 fun idi [t ::: Type] (x : t) = x
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adamc@1093
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5 val idi_self = idi @@idi
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adamc@17
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6
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adamc@1093
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7 fun picker [na :: Name] [a ::: Type] [nb :: Name] [b ::: Type] [fs ::: {Type}] [[na] ~ [nb]] [[na, nb] ~ fs]
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adamc@1093
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8 (r : $([na = a, nb = b] ++ fs)) = {na = r.na, nb = r.nb}
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adamc@17
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9 val getem = picker [#A] [#C] {A = 0, B = 1.0, C = "hi", D = {}}
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adamc@18
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10 val getem2 = picker [#A] [_] {A = 0, B = 1.0, C = "hi", D = {}}
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adamc@18
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11 val getem3 = picker [#A] [_::Name] {A = 0, B = 1.0, C = "hi", D = {}}
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adamc@17
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12
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adamc@1093
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13 fun picker_ohmy [na ::: Name] [a ::: Type] [nb ::: Name] [b ::: Type] [fs ::: {Type}] [[na] ~ [nb]] [[na, nb] ~ fs]
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adamc@1093
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14 (r : $([na = a, nb = b] ++ fs)) = {na = r.na, nb = r.nb}
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adamc@17
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15 val getem_ohmy = picker_ohmy {A = 0, B = 1.0, C = "hi", D = {}}
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adamc@1093
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16
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adamc@1093
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17 fun proj [fs] [t] [nm :: Name] [[nm] ~ fs] (r : $([nm = t] ++ fs)) = r.nm
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adamc@1093
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18 val one = proj [#A] {A = 1, B = True}
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