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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 | ||
23 | type env | |
24 | val empty : env | |
25 | ||
26 | val bindType : env -> string -> env | |
27 | val bindVal : env -> string * Ast.typ * Ast.exp option -> env | |
28 | ||
29 | val lookupType : env -> string -> bool | |
30 | val lookupVal : env -> string -> Ast.typ option | |
31 | val lookupEquation : env -> string -> Ast.exp option | |
32 | ||
33 | end |