1 (* Copyright (C) 2009 Matthew Fluet.
2 * Copyright (C) 1999-2006 Henry Cejtin, Matthew Fluet, Suresh
3 * Jagannathan, and Stephen Weeks.
4 * Copyright (C) 1997-2000 NEC Research Institute.
6 * MLton is released under a BSD-style license.
7 * See the file MLton-LICENSE for details.
10 signature FIELD_STRUCTS =
12 structure Symbol: SYMBOL
23 val <= : t * t -> bool (* ordering used for sorting *)
24 val equals: t * t -> bool
25 val layout: t -> Layout.t
26 val toString: t -> string