Mercurial > urweb
view tests/type_classMod2.ur @ 1998:cc7e5d469d1b
Protect uw_Basis_new_client_source from invalid ctx->id
We assume that FFI code may create new contextes with id left unassigned
author | Sergey Mironov <grrwlf@gmail.com> |
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date | Wed, 26 Feb 2014 09:43:47 +0000 |
parents | 71bafe66dbe1 |
children |
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signature S = sig class c val default : t :: Type -> c t -> t val string_c : c string val int_c : c int end structure M : S = struct class c t = t val default = fn t :: Type => fn v : c t => v val int_c : c int = 0 val string_c : c string = "Hi" end val hi = M.default [string] _ val zero = M.default [int] _