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view tests/sig_impl.ur @ 1212:fc33072c4d33

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Replaced Select predicate with special-case handling for one-or-no-rows queries
author Adam Chlipala <adamc@hcoop.net>
date Tue, 06 Apr 2010 15:17:28 -0400
parents 71bafe66dbe1
children
line wrap: on
line source
signature S = sig
        type t
        val x : t
end

structure M : S = struct
        val x = 0
end

signature S = sig
        con r :: {Type}
        val x : $r
end

structure M : S = struct
        val x = {A = 0, B = "Hi"}
end

signature S = sig
        type t
        con r :: {Type}
        val x : t -> $r
end

structure M : S = struct
        val x = fn v : int => {A = 0, B = "Hi"}
end

signature S = sig
        con nm :: Name
        con t :: Type
        con r :: {Type}
        val x : $([nm = t] ++ r)
end

structure M : S = struct
        val x = {A = 0, B = "Hi"}
end

signature S = sig
        con nm :: Name
        con r :: {Type}
        val x : $([nm = int] ++ r)
end

structure M : S = struct
        val x = {A = 0, B = "Hi"}
end

signature S = sig
        con nm :: Name
        con r :: {Type}
        val x : $([nm = string] ++ r)
end

structure M : S = struct
        val x = {A = 0, B = "Hi"}
end