44 lines
1.5 KiB
OCaml
44 lines
1.5 KiB
OCaml
|
(*
|
||
|
|
* Copyright (c) 1997-1999 Massachusetts Institute of Technology
|
||
|
|
* Copyright (c) 2003, 2007-14 Matteo Frigo
|
||
|
|
* Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License as published by
|
||
|
|
* the Free Software Foundation; either version 2 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
*
|
||
|
|
*)
|
||
|
|
|
||
|
|
open Util
|
||
|
|
|
||
|
|
type color = | RED | BLUE | BLACK | YELLOW
|
||
|
|
|
||
|
|
type dagnode =
|
||
|
|
{ assigned: Variable.variable;
|
||
|
|
mutable expression: Expr.expr;
|
||
|
|
input_variables: Variable.variable list;
|
||
|
|
mutable successors: dagnode list;
|
||
|
|
mutable predecessors: dagnode list;
|
||
|
|
mutable label: int;
|
||
|
|
mutable color: color}
|
||
|
|
|
||
|
|
type dag
|
||
|
|
|
||
|
|
val makedag : (Variable.variable * Expr.expr) list -> dag
|
||
|
|
|
||
|
|
val map : (dagnode -> dagnode) -> dag -> dag
|
||
|
|
val for_all : dag -> (dagnode -> unit) -> unit
|
||
|
|
val to_list : dag -> (dagnode list)
|
||
|
|
val bfs : dag -> dagnode -> int -> unit
|
||
|
|
val find_node : (dagnode -> bool) -> dag -> dagnode option
|