HCoop / hcoop / debian / mlton.git / blame
| Commit | Line | Data |
|---|---|---|
| 7f918cf1 CE |
1 | (* Copyright (C) 2003-2006, 2008 Henry Cejtin, Matthew Fluet, Suresh |
| 2 | * Jagannathan, and Stephen Weeks. | |
| 3 | * | |
| 4 | * MLton is released under a BSD-style license. | |
| 5 | * See the file MLton-LICENSE for details. | |
| 6 | *) | |
| 7 | ||
| 8 | functor TyconKind (S: TYCON_KIND_STRUCTS): TYCON_KIND = | |
| 9 | struct | |
| 10 | ||
| 11 | open S | |
| 12 | ||
| 13 | datatype t = | |
| 14 | Arity of int | |
| 15 | | Nary | |
| 16 | ||
| 17 | val layout = | |
| 18 | fn Arity n => Int.layout n | |
| 19 | | Nary => Layout.str "n-ary" | |
| 20 | ||
| 21 | val equals = | |
| 22 | fn (Arity n, Arity n') => n = n' | |
| 23 | | (Nary, Nary) => true | |
| 24 | | _ => false | |
| 25 | ||
| 26 | val equals = Trace.trace2 ("TyconKind.equals", layout, layout, Bool.layout) equals | |
| 27 | ||
| 28 | end |