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7f918cf1 CE |
1 | (* Copyright (C) 1999-2007 Henry Cejtin, Matthew Fluet, Suresh |
2 | * Jagannathan, and Stephen Weeks. | |
3 | * Copyright (C) 1997-2000 NEC Research Institute. | |
4 | * | |
5 | * MLton is released under a BSD-style license. | |
6 | * See the file MLton-LICENSE for details. | |
7 | *) | |
8 | ||
9 | signature FLAT_LATTICE_STRUCTS = | |
10 | sig | |
11 | structure Point: | |
12 | sig | |
13 | type t | |
14 | ||
15 | val equals: t * t -> bool | |
16 | val layout: t -> Layout.t | |
17 | end | |
18 | end | |
19 | ||
20 | signature FLAT_LATTICE = | |
21 | sig | |
22 | include FLAT_LATTICE_STRUCTS | |
23 | ||
24 | type t | |
25 | ||
26 | val <= : t * t -> bool | |
27 | val forcePoint: t * Point.t -> bool | |
28 | val forceTop: t -> bool | |
29 | val getPoint: t -> Point.t option | |
30 | val isBottom: t -> bool | |
31 | val isPoint: t -> bool | |
32 | val isPointEq: t * Point.t -> bool | |
33 | val isTop: t -> bool | |
34 | val layout: t -> Layout.t | |
35 | val lowerBound: t * Point.t -> bool | |
36 | val new: unit -> t | |
37 | val point: Point.t -> t | |
38 | val upperBound: t * Point.t -> bool | |
39 | end |