Mercurial > urweb
view tests/sig_impl.ur @ 1836:276fa06428ba
Ignore polymorphism in JavaScript calls to custom FFI functions, allowing a kind of simple dynamic typing (unsafe, of course)
author | Adam Chlipala <adam@chlipala.net> |
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date | Tue, 11 Dec 2012 15:58:23 -0500 |
parents | 71bafe66dbe1 |
children |
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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