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1 | (* HCoop Domtool (http://hcoop.sourceforge.net/) |
2 | * Copyright (c) 2006, Adam Chlipala |
3 | * |
4 | * This program is free software; you can redistribute it and/or |
5 | * modify it under the terms of the GNU General Public License |
6 | * as published by the Free Software Foundation; either version 2 |
7 | * of the License, or (at your option) any later version. |
8 | * |
9 | * This program is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | * GNU General Public License for more details. |
13 | * |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write to the Free Software |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
17 | *) |
18 | |
19 | (* Domtool type-checking and reduction environments *) |
20 | |
21 | signature ENV = sig |
22 | |
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23 | type typeRule = Ast.exp -> bool |
24 | val registerType : string * typeRule -> unit |
25 | val typeRule : string -> typeRule option |
26 | |
27 | type env_vars = Ast.exp Ast.StringMap.map |
28 | type action = env_vars * Ast.exp list -> env_vars |
29 | val registerAction : string * action -> unit |
30 | val action : string -> action option |
31 | |
32 | val registerContainer : string * action * (unit -> unit) -> unit |
33 | val container : string -> (action * (unit -> unit)) option |
34 | |
35 | val badArgs : string -> 'a |
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36 | |
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37 | type env |
38 | val empty : env |
39 | |
40 | val bindType : env -> string -> env |
41 | val bindVal : env -> string * Ast.typ * Ast.exp option -> env |
42 | |
43 | val lookupType : env -> string -> bool |
44 | val lookupVal : env -> string -> Ast.typ option |
45 | val lookupEquation : env -> string -> Ast.exp option |
46 | |
47 | end |