181 lines
6.1 KiB
Prolog
181 lines
6.1 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.be
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WWW: http://www.swi-prolog.org
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Copyright (C): 2005, 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_in_YAP_Programs
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%
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% CHR error handling
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%
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:- module(chr_compiler_errors,
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[
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chr_info/3,
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chr_warning/3,
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chr_error/3,
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print_chr_error/1
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]).
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:- use_module(chr_compiler_options).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% chr_info(+Type,+FormattedMessage,+MessageParameters)
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chr_info(_,Message,Params) :-
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( \+verbosity_on ->
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true
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;
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long_line_with_equality_signs,
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format(user_error,'CHR compiler:\n',[]),
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format(user_error,Message,Params),
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long_line_with_equality_signs
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).
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%% SWI begin
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verbosity_on :-
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current_prolog_flag(verbose,V), V \== silent,
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current_prolog_flag(verbose_load,true).
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%% SWI end
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%% SICStus begin
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%% verbosity_on. % at the moment
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%% SICStus end
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% chr_warning(+Type,+FormattedMessage,+MessageParameters)
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chr_warning(deprecated(Term),Message,Params) :- !,
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long_line_with_equality_signs,
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format(user_error,'CHR compiler WARNING: deprecated syntax ~w.\n',[Term]),
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format(user_error,' `--> ',[]),
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format(user_error,Message,Params),
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format(user_error,' Support for deprecated syntax will be discontinued in the near future!\n',[]),
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long_line_with_equality_signs.
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chr_warning(internal,Message,Params) :- !,
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long_line_with_equality_signs,
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format(user_error,'CHR compiler WARNING: something unexpected happened in the CHR compiler.\n',[]),
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format(user_error,' `--> ',[]),
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format(user_error,Message,Params),
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format(user_error,' Your program may not have been compiled correctly!\n',[]),
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format(user_error,' Please contact tom.schrijvers@cs.kuleuven.be.\n',[]),
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long_line_with_equality_signs.
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chr_warning(unsupported_pragma(Pragma,Rule),Message,Params) :- !,
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long_line_with_equality_signs,
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format(user_error,'CHR compiler WARNING: unsupported pragma ~w in ~@.\n',[Pragma,format_rule(Rule)]),
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format(user_error,' `--> ',[]),
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format(user_error,Message,Params),
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format(user_error,' Pragma is ignored!\n',[]),
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long_line_with_equality_signs.
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chr_warning(problem_pragma(Pragma,Rule),Message,Params) :- !,
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long_line_with_equality_signs,
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format(user_error,'CHR compiler WARNING: unsupported pragma ~w in ~@.\n',[Pragma,format_rule(Rule)]),
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format(user_error,' `--> ',[]),
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format(user_error,Message,Params),
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long_line_with_equality_signs.
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chr_warning(_,Message,Params) :-
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( chr_pp_flag(verbosity,on) ->
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long_line_with_equality_signs,
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format(user_error,'CHR compiler WARNING:\n',[]),
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format(user_error,' `--> ',[]),
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format(user_error,Message,Params),
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long_line_with_equality_signs
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;
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true
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).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% chr_error(+Type,+FormattedMessage,+MessageParameters)
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chr_error(Type,Message,Params) :-
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throw(chr_error(error(Type,Message,Params))).
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print_chr_error(error(Type,Message,Params)) :-
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print_chr_error(Type,Message,Params).
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print_chr_error(syntax(Term),Message,Params) :- !,
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long_line_with_equality_signs,
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format(user_error,'CHR compiler ERROR: invalid syntax "~w".\n',[Term]),
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format(user_error,' `--> ',[]),
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format(user_error,Message,Params),
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long_line_with_equality_signs.
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print_chr_error(type_error,Message,Params) :- !,
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long_line_with_equality_signs,
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format(user_error,'CHR compiler TYPE ERROR:\n',[]),
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format(user_error,' `--> ',[]),
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format(user_error,Message,Params),
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long_line_with_equality_signs.
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print_chr_error(internal,Message,Params) :- !,
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long_line_with_equality_signs,
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format(user_error,'CHR compiler ERROR: something unexpected happened in the CHR compiler.\n',[]),
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format(user_error,' `--> ',[]),
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format(user_error,Message,Params),
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format(user_error,' Please contact tom.schrijvers@cs.kuleuven.be.\n',[]),
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long_line_with_equality_signs.
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print_chr_error(cyclic_alias(Alias),_Message,_Params) :- !,
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long_line_with_equality_signs,
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format(user_error,'CHR compiler ERROR: cyclic alias "~w".\n',[Alias]),
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format(user_error,' `--> Aborting compilation.\n',[]),
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long_line_with_equality_signs.
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print_chr_error(_,Message,Params) :-
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long_line_with_equality_signs,
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format(user_error,'CHR compiler ERROR:\n',[]),
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format(user_error,' `--> ',[]),
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format(user_error,Message,Params),
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long_line_with_equality_signs.
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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:- public
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format_rule/1. % called using format/3 `@'
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format_rule(PragmaRule) :-
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PragmaRule = pragma(_,_,Pragmas,MaybeName,N),
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( MaybeName = yes(Name) ->
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write('rule '), write(Name)
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;
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write('rule number '), write(N)
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),
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( memberchk(line_number(LineNumber),Pragmas) ->
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write(' (line '),
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write(LineNumber),
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write(')')
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;
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true
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).
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long_line_with_equality_signs :-
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format(user_error,'================================================================================\n',[]).
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