67 lines
2.0 KiB
Prolog
67 lines
2.0 KiB
Prolog
/* $Id$
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Part of CHR (Constraint Handling Rules)
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Author: Tom Schrijvers
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E-mail: Tom.Schrijvers@cs.kuleuven.ac.be
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WWW: http://www.swi-prolog.org
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Copyright (C): 2003-2004, K.U. Leuven
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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As a special exception, if you link this library with other files,
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compiled with a Free Software compiler, to produce an executable, this
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library does not by itself cause the resulting executable to be covered
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by the GNU General Public License. This exception does not however
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invalidate any other reasons why the executable file might be covered by
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the GNU General Public License.
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*/
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%% @addtogroup CHR_Debugging
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%
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% CHR debugger
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%
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:- module(chr_debug,
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[ chr_show_store/1, % +Module
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find_chr_constraint/1
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]).
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:- use_module(chr(chr_runtime)).
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:- use_module(library(lists)).
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:- set_prolog_flag(generate_debug_info, false).
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%% chr_show_store(+Module)
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%
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% Prints all suspended constraints of module Mod to the standard
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% output.
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chr_show_store(Mod) :-
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(
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Mod:'$enumerate_suspensions'(Susp),
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% arg(6,Susp,C),
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Susp =.. [_,_,_,_,_,_,F|Arg],
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functor(F,Fun,_),
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C =.. [Fun|Arg],
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print(C),nl, % allows use of portray to control printing
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fail
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;
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true
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).
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find_chr_constraint(C) :-
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chr:'$chr_module'(Mod),
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Mod:'$enumerate_suspensions'(Susp),
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arg(6,Susp,C).
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