1fa46c6051
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1415 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
256 lines
7.6 KiB
Prolog
256 lines
7.6 KiB
Prolog
/*************************************************************************
|
|
* *
|
|
* YAP Prolog *
|
|
* *
|
|
* Yap Prolog was developed at NCCUP - Universidade do Porto *
|
|
* *
|
|
* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
|
|
* *
|
|
**************************************************************************
|
|
* *
|
|
* File: checker.yap *
|
|
* comments: style checker for Prolog *
|
|
* *
|
|
* Last rev: $Date: 2005-10-28 17:38:50 $,$Author: vsc $ *
|
|
* $Log: not supported by cvs2svn $
|
|
* Revision 1.18 2005/04/20 20:06:11 vsc
|
|
* try to improve error handling and warnings from within consults.
|
|
*
|
|
* Revision 1.17 2005/04/20 04:08:20 vsc
|
|
* fix warnings
|
|
*
|
|
* Revision 1.16 2005/01/13 05:47:27 vsc
|
|
* lgamma broke arithmetic optimisation
|
|
* integer_y has type y
|
|
* pass original source to checker (and maybe even use option in parser)
|
|
* use warning mechanism for checker messages.
|
|
*
|
|
* Revision 1.15 2004/06/29 19:12:01 vsc
|
|
* fix checker messages
|
|
*
|
|
* Revision 1.14 2004/06/29 19:04:46 vsc
|
|
* fix multithreaded version
|
|
* include new version of Ricardo's profiler
|
|
* new predicat atomic_concat
|
|
* allow multithreaded-debugging
|
|
* small fixes
|
|
*
|
|
* Revision 1.13 2004/03/19 11:35:42 vsc
|
|
* trim_trail for default machine
|
|
* be more aggressive about try-retry-trust chains.
|
|
* - handle cases where block starts with a wait
|
|
* - don't use _killed instructions, just let the thing rot by itself.
|
|
* *
|
|
* *
|
|
*************************************************************************/
|
|
|
|
%
|
|
% A Small style checker for YAP
|
|
|
|
:- op(1150, fx, multifile).
|
|
|
|
style_check(V) :- var(V), !, fail.
|
|
style_check(all) :- '$syntax_check_mode'(_,on),
|
|
'$syntax_check_single_var'(_,on),
|
|
'$syntax_check_discontiguous'(_,on),
|
|
'$syntax_check_multiple'(_,on).
|
|
style_check(single_var) :- '$syntax_check_mode'(_,on),
|
|
'$syntax_check_single_var'(_,on).
|
|
style_check(singleton) :-
|
|
style_check(single_var).
|
|
style_check(-single_var) :-
|
|
no_style_check(single_var).
|
|
style_check(-singleton) :-
|
|
no_style_check(single_var).
|
|
style_check(discontiguous) :- '$syntax_check_mode'(_,on),
|
|
'$syntax_check_discontiguous'(_,on).
|
|
style_check(-discontiguous) :-
|
|
no_style_check(discontiguous).
|
|
style_check(multiple) :- '$syntax_check_mode'(_,on),
|
|
'$syntax_check_multiple'(_,on).
|
|
style_check(-multiple) :-
|
|
no_style_check(multiple).
|
|
style_check([]).
|
|
style_check([H|T]) :- style_check(H), style_check(T).
|
|
|
|
no_style_check(V) :- var(V), !, fail.
|
|
no_style_check(all) :- '$syntax_check_mode'(_,off),
|
|
'$syntax_check_single_var'(_,off),
|
|
'$syntax_check_discontiguous'(_,off),
|
|
'$syntax_check_multiple'(_,off).
|
|
no_style_check(single_var) :- '$syntax_check_mode'(_,off),
|
|
'$syntax_check_single_var'(_,off).
|
|
no_style_check(discontiguous) :- '$syntax_check_mode'(_,off),
|
|
'$syntax_check_discontiguous'(_,off).
|
|
no_style_check(multiple) :- '$syntax_check_mode'(_,on),
|
|
'$syntax_check_multiple'(_,off).
|
|
no_style_check([]).
|
|
no_style_check([H|T]) :- no_style_check(H), no_style_check(T).
|
|
|
|
|
|
|
|
'$syntax_check_mode'(O,N) :-
|
|
'$values'('$syntaxcheckflag',O,N).
|
|
|
|
'$syntax_check_single_var'(O,N) :-
|
|
'$values'('$syntaxchecksinglevar',O,N).
|
|
|
|
'$syntax_check_discontiguous'(O,N) :-
|
|
'$values'('$syntaxcheckdiscontiguous',O,N).
|
|
|
|
'$syntax_check_multiple'(O,N) :-
|
|
'$values'('$syntaxcheckmultiple',O,N).
|
|
|
|
|
|
'$check_term'(T,_,M) :-
|
|
get_value('$syntaxcheckdiscontiguous',on),
|
|
'$xtract_head'(T,M,NM,_,F,A),
|
|
'$handle_discontiguous'(F,A,NM), fail.
|
|
'$check_term'(T,_,M) :-
|
|
get_value('$syntaxcheckmultiple',on),
|
|
'$xtract_head'(T,M,NM,_,F,A),
|
|
'$handle_multiple'(F,A,NM), fail.
|
|
'$check_term'(T,VL,_) :-
|
|
get_value('$syntaxchecksinglevar',on),
|
|
( '$chk_binding_vars'(T),
|
|
'$sv_list'(VL,Sv) ->
|
|
'$sv_warning'(Sv,T) ), fail.
|
|
'$check_term'(_,_,_).
|
|
|
|
'$chk_binding_vars'(V) :- var(V), !, V = '$V'(_).
|
|
'$chk_binding_vars'('$V'(off)) :- !.
|
|
'$chk_binding_vars'(A) :- primitive(A), !.
|
|
'$chk_binding_vars'(S) :- S =.. [_|L],
|
|
'$chk_bind_in_struct'(L).
|
|
|
|
'$chk_bind_in_struct'([]).
|
|
'$chk_bind_in_struct'([H|T]) :-
|
|
'$chk_binding_vars'(H),
|
|
'$chk_bind_in_struct'(T).
|
|
|
|
'$sv_list'([],[]).
|
|
'$sv_list'([[[95|_]|_]|T],L) :-
|
|
'$sv_list'(T,L).
|
|
'$sv_list'([[Name|'$V'(V)]|T],[Name|L]) :- var(V), !,
|
|
'$sv_list'(T,L).
|
|
'$sv_list'([_|T],L) :-
|
|
'$sv_list'(T,L).
|
|
|
|
|
|
'$sv_warning'([],_) :- !.
|
|
'$sv_warning'(SVs,T) :-
|
|
'$current_module'(OM),
|
|
'$xtract_head'(T,OM,M,H,Name,Arity),
|
|
'$start_line'(LN),
|
|
( get_value('$consulting',false),
|
|
'$first_clause_in_file'(Name,Arity, OM) ->
|
|
ClN = 1 ;
|
|
'$number_of_clauses'(H,M,ClN0),
|
|
ClN is ClN0+1
|
|
),
|
|
print_message(warning,singletons(SVs,(M:Name/Arity),ClN)).
|
|
|
|
'$xtract_head'(V,M,M,V,call,1) :- var(V), !.
|
|
'$xtract_head'((H:-_),OM,M,NH,Name,Arity) :- !,
|
|
'$xtract_head'(H,OM,M,NH,Name,Arity).
|
|
'$xtract_head'((H,_),OM,M,H1,Name,Arity) :- !,
|
|
'$xtract_head'(H,OM,M,H1,Name,Arity).
|
|
'$xtract_head'((H-->_),OM,M,HL,Name,Arity) :- !,
|
|
'$xtract_head'(H,M,OM,M,Name,A1),
|
|
Arity is A1+2,
|
|
functor(HL,Name,Arity).
|
|
'$xtract_head'(M:H,_,NM,NH,Name,Arity) :- !,
|
|
'$xtract_head'(H,M,NM,NH,Name,Arity).
|
|
'$xtract_head'(H,M,M,H,Name,Arity) :-
|
|
functor(H,Name,Arity).
|
|
|
|
'$handle_discontiguous'(F,A,M) :-
|
|
recorded('$discontiguous_defs','$df'(F,A,M),_), !.
|
|
'$handle_discontiguous'(F,A,M) :-
|
|
'$in_this_file_before'(F,A,M),
|
|
print_message(warning,clauses_not_together((M:F/A))).
|
|
|
|
'$handle_multiple'(F,A,M) :-
|
|
\+ '$first_clause_in_file'(F,A,M), !.
|
|
'$handle_multiple'(_,_,_) :-
|
|
get_value('$consulting',true), !.
|
|
'$handle_multiple'(F,A,M) :-
|
|
recorded('$predicate_defs','$predicate_defs'(F,A,M,Fil),_), !,
|
|
'$multiple_has_been_defined'(Fil, F/A, M), !.
|
|
'$handle_multiple'(F,A,M) :-
|
|
( recorded('$reconsulting',Fil,_) -> true ),
|
|
recorda('$predicate_defs','$predicate_defs'(F,A,M,Fil),_).
|
|
|
|
'$multiple_has_been_defined'(_, F/A, M) :-
|
|
functor(S, F, A),
|
|
'$is_multifile'(S, M), !.
|
|
'$multiple_has_been_defined'(Fil,P,M) :-
|
|
recorded('$reconsulting',F,_), !,
|
|
'$test_if_well_reconsulting'(F,Fil,M:P).
|
|
|
|
'$test_if_well_reconsulting'(F,F,_) :- !.
|
|
'$test_if_well_reconsulting'(_,Fil,P) :-
|
|
'$start_line'(LN),
|
|
print_message(warning,defined_elsewhere(P,Fil)).
|
|
|
|
'$multifile'(V, _) :- var(V), !,
|
|
'$do_error'(instantiation_error,multifile(V)).
|
|
'$multifile'((X,Y), M) :- !, '$multifile'(X, M), '$multifile'(Y, M).
|
|
'$multifile'(Mod:PredSpec, _) :- !,
|
|
'$multifile'(PredSpec, Mod).
|
|
'$multifile'(N/A, M) :-
|
|
'$add_multifile'(N,A,M),
|
|
fail.
|
|
'$multifile'(N/A, M) :-
|
|
functor(S,N,A),
|
|
'$is_multifile'(S, M), !.
|
|
'$multifile'(N/A, M) :- !,
|
|
'$new_multifile'(N,A,M).
|
|
'$multifile'([H|T], M) :- !,
|
|
'$multifile'(H,M),
|
|
'$multifile'(T,M).
|
|
'$multifile'(P, M) :-
|
|
'$do_error'(type_error(predicate_indicator,P),multifile(M:P)).
|
|
|
|
'$discontiguous'(V,M) :- var(V), !,
|
|
'$do_error'(instantiation_error,M:discontiguous(V)).
|
|
'$discontiguous'((X,Y),M) :- !,
|
|
'$discontiguous'(X,M),
|
|
'$discontiguous'(Y,M).
|
|
'$discontiguous'(M:A,_) :- !,
|
|
'$discontiguous'(A,M).
|
|
'$discontiguous'(N/A, M) :- !,
|
|
( recordzifnot('$discontiguous_defs','$df'(N,A,M),_) ->
|
|
true
|
|
;
|
|
true
|
|
).
|
|
'$discontiguous'(P,M) :-
|
|
'$do_error'(type_error(predicate_indicator,P),M:discontiguous(P)).
|
|
|
|
%
|
|
% did we declare multifile properly?
|
|
%
|
|
'$check_multifile_pred'(Hd, M, _) :-
|
|
functor(Hd,Na,Ar),
|
|
get_value('$consulting_file',F),
|
|
recorded('$multifile_defs','$defined'(F,Na,Ar,M),_), !.
|
|
% oops, we did not.
|
|
'$check_multifile_pred'(Hd, M, Fl) :-
|
|
% so this is not a multi-file predicate any longer.
|
|
functor(Hd,Na,Ar),
|
|
NFl is \(0x20000000) /\ Fl,
|
|
'$flags'(Hd,M,Fl,NFl),
|
|
'$warn_mfile'(Na,Ar).
|
|
|
|
'$warn_mfile'(F,A) :-
|
|
write(user_error,'% Warning: predicate '),
|
|
write(user_error,F/A), write(user_error,' was a multifile predicate '),
|
|
write(user_error,' (line '),
|
|
'$start_line'(LN), write(user_error,LN),
|
|
write(user_error,')'),
|
|
nl(user_error).
|
|
|
|
|
|
|