67738fbbd1
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1865 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
859 lines
25 KiB
Prolog
859 lines
25 KiB
Prolog
/*************************************************************************
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* *
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* YAP Prolog *
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* *
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* Yap Prolog was developed at NCCUP - Universidade do Porto *
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* *
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* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
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* *
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**************************************************************************
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* *
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* File: preds.yap *
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* Last rev: 8/2/88 *
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* mods: *
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* comments: Predicate Manipulation for YAP *
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* *
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*************************************************************************/
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% The next predicates are applicable only
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% to dynamic code
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asserta(Mod:C) :- !,
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'$assert'(C,Mod,first,_,asserta(Mod:C)).
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asserta(C) :-
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'$current_module'(Mod),
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'$assert'(C,Mod,first,_,asserta(C)).
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assertz(Mod:C) :- !,
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'$assert'(C,Mod,last,_,assertz(Mod:C)).
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assertz(C) :-
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'$current_module'(Mod),
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'$assert'(C,Mod,last,_,assertz(C)).
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assert(Mod:C) :- !,
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'$assert'(C,Mod,last,_,assert(Mod:C)).
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assert(C) :-
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'$current_module'(Mod),
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'$assert'(C,Mod,last,_,assert(C)).
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'$assert'(V,Mod,_,_,_) :- var(V), !,
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'$do_error'(instantiation_error,assert(Mod:V)).
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'$assert'(V,Mod,_,_,_) :- var(Mod), !,
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'$do_error'(instantiation_error,assert(Mod:V)).
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'$assert'(M:C,_,Where,R,P) :- !,
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'$assert'(C,M,Where,R,P).
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'$assert'((H:-G),M1,Where,R,P) :- !,
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'$assert_clause'(H, G, M1, Where, R, P).
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'$assert'(H,M1,Where,R,_) :-
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'$assert_fact'(H, M1, Where, R).
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'$assert_clause'(H, _, _, _, _, P) :-
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var(H), !, '$do_error'(instantiation_error,P).
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'$assert_clause'(M1:C, G, M1, Where, R, P) :- !,
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'$assert_clause2'(C, G, M1, Where, R, P).
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'$assert_clause'(M:C, G, M1, Where, R, P) :- !,
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'$preprocess_clause_before_mod_change'((C:-G),M1,M,C1),
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C1 = (NH :- NG),
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'$assert_clause2'(NH, NG, M, Where, R, P).
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'$assert_clause'(H, G, M1, Where, R, P) :- !,
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'$assert_clause2'(H, G, M1, Where, R, P).
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'$assert_fact'(H,Mod,Where,R) :-
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'$is_log_updatable'(H, Mod), !,
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'$compile_dynamic'(H, Where, H, Mod, R).
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'$assert_fact'(H,Mod,Where,R) :-
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( '$is_dynamic'(H, Mod) ->
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'$assertat_d'(Where, H, true, H, Mod, R)
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;
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'$undefined'(H,Mod) ->
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functor(H, Na, Ar),
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'$dynamic'(Na/Ar, Mod),
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'$assert_fact'(H,Mod,Where,R)
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;
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'$access_yap_flags'(14, 1) -> % I can assert over static facts in YAP mode
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'$assert1'(Where,H,H,Mod,H)
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;
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functor(H, Na, Ar),
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'$do_error'(permission_error(modify,static_procedure,Na/Ar),Mod:assert(H))
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).
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'$assert_clause2'(HI,BI,Mod,Where,R,P) :-
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'$expand_clause'((HI :- BI),C0,C,Mod),
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'$assert_clause3'(C0,C,Mod,Where,R,P).
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'$assert_clause3'(C0,C,Mod,Where,R,P) :-
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'$check_head_and_body'(C,H,B,P),
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( '$is_log_updatable'(H, Mod) ->
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'$compile_dynamic'((H :- B), Where, C0, Mod, R)
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;
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'$is_dynamic'(H, Mod) ->
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'$assertat_d'(Where, H, B, C0, Mod, R)
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;
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'$undefined'(H,Mod) ->
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functor(H, Na, Ar),
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'$dynamic'(Na/Ar, Mod),
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'$assert_clause3'(C0,C,Mod,Where,R,P)
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;
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'$access_yap_flags'(14, 1) -> % I can assert over static facts in YAP mode
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'$assert1'(Where,C,C0,Mod,H)
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;
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functor(H, Na, Ar),
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'$do_error'(permission_error(modify,static_procedure,Na/Ar),P)
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).
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'$assert_dynamic'(V,Mod,_,_,_) :- var(V), !,
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'$do_error'(instantiation_error,assert(Mod:V)).
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'$assert_dynamic'(M:C,_,Where,R,P) :- !,
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'$assert_dynamic'(C,M,Where,R,P).
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'$assert_dynamic'((H:-G),M1,Where,R,P) :-
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(var(H) -> '$do_error'(instantiation_error,P) ; H=M:C), !,
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( M1 = M ->
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'$assert_dynamic'((C:-G),M1,Where,R,P)
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;
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'$preprocess_clause_before_mod_change'((C:-G),M1,M,C1),
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'$assert_dynamic'(C1,M,Where,R,P)
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).
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'$assert_dynamic'(CI,Mod,Where,R,P) :-
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'$expand_clause'(CI,C0,C,Mod),
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'$assert_dynamic2'(C0,C,Mod,Where,R,P).
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'$assert_dynamic2'(C0,C,Mod,Where,R,P) :-
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'$check_head_and_body'(C,H,B,P),
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( '$is_log_updatable'(H, Mod) ->
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'$compile_dynamic'(C, Where, C0, Mod, R)
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;
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'$is_dynamic'(H, Mod) ->
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'$assertat_d'(Where,H,B,C0,Mod,R)
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;
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'$undefined'(H, Mod) ->
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functor(H, Na, Ar),
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'$dynamic'(Na/Ar, Mod),
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'$assert_dynamic2'(C0,C,Mod,Where,R,P)
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;
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functor(H,Na,Ar),
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'$do_error'(permission_error(modify,static_procedure,Na/Ar),P)
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).
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assert_static(Mod:C) :- !,
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'$assert_static'(C,Mod,last,_,assert_static(Mod:C)).
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assert_static(C) :-
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'$current_module'(Mod),
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'$assert_static'(C,Mod,last,_,assert_static(C)).
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asserta_static(Mod:C) :- !,
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'$assert_static'(C,Mod,first,_,asserta_static(Mod:C)).
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asserta_static(C) :-
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'$current_module'(Mod),
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'$assert_static'(C,Mod,first,_,asserta_static(C)).
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asserta_static(Mod:C) :- !,
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'$assert_static'(C,Mod,last,_,assertz_static(Mod:C)).
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assertz_static(C) :-
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'$current_module'(Mod),
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'$assert_static'(C,Mod,last,_,assertz_static(C)).
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'$assert_static'(V,M,_,_,_) :- var(V), !,
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'$do_error'(instantiation_error,assert(M:V)).
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'$assert_static'(M:C,_,Where,R,P) :- !,
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'$assert_static'(C,M,Where,R,P).
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'$assert_static'((H:-G),M1,Where,R,P) :-
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(var(H) -> '$do_error'(instantiation_error,P) ; H=M:C), !,
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( M1 = M ->
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'$assert_static'((C:-G),M1,Where,R,P)
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;
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'$preprocess_clause_before_mod_change'((C:-G),M1,M,C1),
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'$assert_static'(C1,M,Where,R,P)
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).
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'$assert_static'(CI,Mod,Where,R,P) :-
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'$expand_clause'(CI,C0,C,Mod),
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'$check_head_and_body'(C,H,B,P),
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( '$is_dynamic'(H, Mod) ->
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'$do_error'(permission_error(modify,dynamic_procedure,Na/Ar),P)
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;
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'$undefined'(H,Mod), get_value('$full_iso',true) ->
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functor(H,Na,Ar), '$dynamic'(Na/Ar, Mod), '$assertat_d'(Where,H,B,C0,Mod,R)
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;
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'$assert1'(Where,C,C0,Mod,H)
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).
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'$assertat_d'(first,Head,Body,C0,Mod,R) :- !,
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'$compile_dynamic'((Head:-Body), first, C0, Mod, CR),
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( get_value('$abol',true)
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->
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'$flags'(Head,Mod,Fl,Fl),
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( Fl /\ 0x00400000 =\= 0 -> '$erase_source'(Head,Mod) ; true ),
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( Fl /\ 0x20000000 =\= 0 -> '$check_multifile_pred'(Head,Mod,Fl) ; true )
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;
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true
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),
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'$head_and_body'(C0, H0, B0),
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'$recordap'(Mod:Head,(H0 :- B0),R,CR),
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( '$is_multifile'(Head, Mod) ->
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get_value('$consulting_file',F),
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functor(H0, Na, Ar),
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recorda('$multifile_dynamic'(_,_,_), '$mf'(Na,Ar,Mod,F,R), _)
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;
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true
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).
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'$assertat_d'(last,Head,Body,C0,Mod,R) :-
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'$compile_dynamic'((Head:-Body), last, C0, Mod, CR),
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( get_value('$abol',true)
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->
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'$flags'(Head,Mod,Fl,Fl),
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( Fl /\ 0x00400000 =\= 0 -> '$erase_source'(Head,Mod) ; true ),
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( Fl /\ 0x20000000 =\= 0 -> '$check_multifile_pred'(Head,Mod,Fl) ; true )
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;
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true
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),
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'$head_and_body'(C0, H0, B0),
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'$recordzp'(Mod:Head,(H0 :- B0),R,CR),
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( '$is_multifile'(H0, Mod) ->
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get_value('$consulting_file',F),
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functor(H0, Na, Ar),
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recordz('$multifile_dynamic'(_,_,_), '$mf'(Na,Ar,Mod,F,R), _)
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;
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true
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).
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'$assert1'(last,C,C0,Mod,_) :- '$compile'(C,0,C0,Mod).
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'$assert1'(first,C,C0,Mod,_) :- '$compile'(C,2,C0,Mod).
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'$assertz_dynamic'(X, C, C0, Mod) :- (X/\4)=:=0, !,
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'$head_and_body'(C,H,B),
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'$assertat_d'(last,H,B,C0,Mod,_).
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'$assertz_dynamic'(X,C,C0,Mod) :-
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'$head_and_body'(C,H,B), functor(H,N,A),
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('$check_if_reconsulted'(N,A) ->
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true
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;
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(X/\8)=:=0 ->
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'$inform_as_reconsulted'(N,A),
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'$remove_all_d_clauses'(H,Mod)
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;
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true
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),
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'$assertat_d'(last,H,B,C0,Mod,_).
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'$remove_all_d_clauses'(H,M) :-
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'$is_multifile'(H, M), !,
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functor(H, Na, A),
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'$erase_all_mf_dynamic'(Na,A,M).
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'$remove_all_d_clauses'(H,M) :-
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'$recordedp'(M:H,_,R), erase(R), fail.
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'$remove_all_d_clauses'(_,_).
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'$erase_all_mf_dynamic'(Na,A,M) :-
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get_value('$consulting_file',F),
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'$recorded'('$multifile_dynamic'(_,_,_), '$mf'(Na,A,M,F,R), R1),
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erase(R1),
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erase(R),
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fail.
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'$erase_all_mf_dynamic'(_,_,_).
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asserta(M:C,R) :- !,
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'$assert_dynamic'(C,M,first,R,asserta(M:C,R)).
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asserta(C,R) :-
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'$current_module'(M),
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'$assert_dynamic'(C,M,first,R,asserta(C,R)).
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assertz(M:C,R) :- !,
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'$assert_dynamic'(C,M,last,R,assertz(M:C,R)).
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assertz(C,R) :-
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'$current_module'(M),
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'$assert_dynamic'(C,M,last,R,assertz(C,R)).
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assert(M:C,R) :- !,
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'$assert_dynamic'(C,M,last,R,assert(M:C,R)).
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assert(C,R) :-
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'$current_module'(M),
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'$assert_dynamic'(C,M,last,R,assert(C,R)).
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clause(M:P,Q) :- !,
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'$clause'(P,M,Q,_).
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clause(V,Q) :-
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'$current_module'(M),
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'$clause'(V,M,Q,_).
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'$clause'(V,M,Q) :- var(V), !,
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'$do_error'(instantiation_error,M:clause(V,Q)).
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'$clause'(C,M,Q) :- number(C), !,
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'$do_error'(type_error(callable,C),M:clause(C,Q)).
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'$clause'(R,M,Q) :- db_reference(R), !,
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'$do_error'(type_error(callable,R),M:clause(R,Q)).
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'$clause'(M:P,_,Q) :- !,
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'$clause'(P,M,Q).
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'$clause'(P,M,Q) :-
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'$is_log_updatable'(P, M), !,
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'$log_update_clause'(P,M,Q).
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'$clause'(P,M,Q) :-
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'$clause'(P,M,Q,_).
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clause(P,Q,R) :- var(P), !,
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'$current_module'(M),
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'$clause'(P,M,Q,R).
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clause(M:P,Q,R) :- !,
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'$clause'(P,M,Q,R).
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clause(V,Q,R) :-
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'$current_module'(M),
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'$clause'(V,M,Q,R).
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'$clause'(P,M,Q,R) :-
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'$instance_module'(R,M0), !,
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M0 = M,
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instance(R,T),
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( T = (H :- B) -> P = H, Q = B ; P=T, Q = true).
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'$clause'(V,M,Q,R) :- var(V), !,
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'$do_error'(instantiation_error,clause(M:V,Q,R)).
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'$clause'(C,M,Q,R) :- number(C), !,
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'$do_error'(type_error(callable,C),clause(M:C,Q,R)).
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'$clause'(R,M,Q,R) :- db_reference(R), !,
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'$do_error'(type_error(callable,R),clause(M:R,Q,R)).
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'$clause'(M:P,_,Q,R) :- !,
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'$clause'(P,M,Q,R).
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'$clause'(P,M,Q,R) :-
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'$is_source'(P, M), !,
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'$static_clause'(P,M,Q,R).
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'$clause'(P,M,Q,R) :-
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'$is_log_updatable'(P, M), !,
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'$log_update_clause'(P,M,Q,R).
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'$clause'(P,M,Q,R) :-
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'$some_recordedp'(M:P), !,
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'$recordedp'(M:P,(P:-Q),R).
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'$clause'(P,M,Q,R) :-
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\+ '$undefined'(P,M),
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( '$system_predicate'(P,M) -> true ;
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'$number_of_clauses'(P,M,N), N > 0 ),
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functor(P,Name,Arity),
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'$do_error'(permission_error(access,private_procedure,Name/Arity),
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clause(M:P,Q,R)).
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% just create a choice-point
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% the 6th argument marks the time-stamp.
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'$do_log_upd_clause'(_,_,_,_,_,_).
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'$do_log_upd_clause'(A,B,C,D,E,_) :-
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'$continue_log_update_clause'(A,B,C,D,E).
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'$do_log_upd_clause'(_,_,_,_,_,_).
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:- '$do_log_upd_clause'(_,_,_,_,_,_), !.
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'$do_log_upd_clause0'(_,_,_,_,_,_).
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'$do_log_upd_clause0'(A,B,C,D,_,_) :-
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'$continue_log_update_clause'(A,B,C,D).
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'$do_log_upd_clause0'(_,_,_,_,_,_).
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:- '$do_log_upd_clause0'(_,_,_,_,_,_), !.
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'$do_static_clause'(_,_,_,_,_).
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'$do_static_clause'(A,B,C,D,E) :-
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'$continue_static_clause'(A,B,C,D,E).
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'$do_static_clause'(_,_,_,_,_).
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:- '$do_static_clause'(_,_,_,_,_), !.
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nth_clause(V,I,R) :- var(V), var(R), !,
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'$do_error'(instantiation_error,nth_clause(V,I,R)).
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nth_clause(M:V,I,R) :- !,
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'$nth_clause'(V,M,I,R).
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nth_clause(V,I,R) :-
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'$current_module'(M),
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'$nth_clause'(V,M,I,R).
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'$nth_clause'(V,M,I,R) :- var(V), var(R), !,
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'$do_error'(instantiation_error,M:nth_clause(V,I,R)).
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'$nth_clause'(P1,_,I,R) :- nonvar(P1), P1 = M:P, !,
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'$nth_clause'(P,M,I,R).
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'$nth_clause'(P,M,I,R) :- nonvar(R), !,
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'$nth_clause_ref'(P,M,I,R).
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'$nth_clause'(C,M,I,R) :- number(C), !,
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'$do_error'(type_error(callable,C),M:nth_clause(C,I,R)).
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'$nth_clause'(R,M,I,R) :- db_reference(R), !,
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'$do_error'(type_error(callable,R),M:nth_clause(R,I,R)).
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'$nth_clause'(P,M,I,R) :-
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( '$is_log_updatable'(P,M) ; '$is_source'(P,M) ), !,
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'$p_nth_clause'(P,M,I,R).
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'$nth_clause'(P,M,I,R) :-
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'$is_dynamic'(P,M), !,
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'$nth_instancep'(M:P,I,R).
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'$nth_clause'(P,M,I,R) :-
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( '$system_predicate'(P,M) -> true ;
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'$number_of_clauses'(P,M,N), N > 0 ),
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functor(P,Name,Arity),
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'$do_error'(permission_error(access,private_procedure,Name/Arity),
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nth_clause(M:P,I,R)).
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'$nth_clause_ref'(Cl,M,I,R) :-
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'$pred_for_code'(R, _, _, M1, I), I > 0, !,
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instance(R, Cl),
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M1 = M.
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'$nth_clause_ref'(P,M,I,R) :-
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'$nth_instancep'(M:P,I,R).
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retract(M:C) :- !,
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'$retract'(C,M).
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retract(C) :-
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'$current_module'(M),
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'$retract'(C,M).
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'$retract'(V,_) :- var(V), !,
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'$do_error'(instantiation_error,retract(V)).
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'$retract'(M:C,_) :- !,
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'$retract'(C,M).
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'$retract'(C,M) :-
|
|
'$check_head_and_body'(C,H,B,retract(M:C)), !,
|
|
'$retract2'(H,M,B).
|
|
|
|
'$retract2'(H,M,B) :-
|
|
'$is_log_updatable'(H, M), !,
|
|
'$log_update_clause'(H,M,B,R),
|
|
erase(R).
|
|
'$retract2'(H,M,B) :-
|
|
'$is_dynamic'(H,M), !,
|
|
'$recordedp'(M:H,(H:-B),R), erase(R).
|
|
'$retract2'(H,M,_) :-
|
|
'$undefined'(H,M), !,
|
|
functor(H,Na,Ar),
|
|
'$dynamic'(Na/Ar,M),
|
|
fail.
|
|
'$retract2'(H,M,B) :-
|
|
functor(H,Na,Ar),
|
|
'$do_error'(permission_error(modify,static_procedure,Na/Ar),retract(M:(H:-B))).
|
|
|
|
retract(M:C,R) :- !,
|
|
'$retract'(C,M,R).
|
|
retract(C,R) :-
|
|
'$current_module'(M),
|
|
'$retract'(C,M,R).
|
|
|
|
'$retract'(V,M,R) :- var(V), !,
|
|
'$do_error'(instantiation_error,retract(M:V,R)).
|
|
'$retract'(M:C,_,R) :- !,
|
|
'$retract'(C,M,R).
|
|
'$retract'(C, M, R) :-
|
|
'$check_head_and_body'(C,H,B,retract(C,R)),
|
|
db_reference(R), '$is_dynamic'(H,M), !,
|
|
instance(R,(H:-B)), erase(R).
|
|
'$retract'(C,M,R) :-
|
|
'$check_head_and_body'(C,H,B,retract(C,R)),
|
|
'$is_dynamic'(H,M), !,
|
|
var(R),
|
|
'$recordedp'(M:H,(H:-B),R),
|
|
erase(R).
|
|
'$retract'(C,M,R) :-
|
|
'$check_head_and_body'(C,H,_,retract(M:C,R)),
|
|
'$undefined'(H,M), !,
|
|
functor(H,Na,Ar),
|
|
'$dynamic'(Na/Ar,M),
|
|
fail.
|
|
'$retract'(C,M,_) :-
|
|
'$fetch_predicate_indicator_from_clause'(C, PI),
|
|
'$do_error'(permission_error(modify,static_procedure,PI),retract(M:C)).
|
|
|
|
'$fetch_predicate_indicator_from_clause'((C :- _), Na/Ar) :- !,
|
|
functor(C, Na, Ar).
|
|
'$fetch_predicate_indicator_from_clause'(C, Na/Ar) :-
|
|
functor(C, Na, Ar).
|
|
|
|
|
|
retractall(M:V) :- !,
|
|
'$retractall'(V,M).
|
|
retractall(V) :-
|
|
'$current_module'(M),
|
|
'$retractall'(V,M).
|
|
|
|
'$retractall'(V,M) :- var(V), !,
|
|
'$do_error'(instantiation_error,retract(M:V)).
|
|
'$retractall'(M:V,_) :- !,
|
|
'$retractall'(V,M).
|
|
'$retractall'(T,M) :-
|
|
(
|
|
'$is_log_updatable'(T, M) ->
|
|
'$retractall_lu'(T,M)
|
|
;
|
|
'$undefined'(T,M) ->
|
|
functor(T,Na,Ar),
|
|
'$dynamic'(Na/Ar,M), !
|
|
;
|
|
'$is_dynamic'(T,M) ->
|
|
'$erase_all_clauses_for_dynamic'(T, M)
|
|
;
|
|
functor(T,Na,Ar),
|
|
'$do_error'(permission_error(modify,static_procedure,Na/Ar),retractall(T))
|
|
).
|
|
|
|
|
|
'$retractall_lu'(T,M) :-
|
|
'$log_update_clause'(T,M,_,R),
|
|
erase(R),
|
|
fail.
|
|
'$retractall_lu'(_,_).
|
|
|
|
'$erase_all_clauses_for_dynamic'(T, M) :-
|
|
'$recordedp'(M:T,(T :- _),R), erase(R), fail.
|
|
'$erase_all_clauses_for_dynamic'(T,M) :-
|
|
'$recordedp'(M:T,_,_), fail.
|
|
'$erase_all_clauses_for_dynamic'(_,_).
|
|
|
|
abolish(Mod:N,A) :- !,
|
|
'$abolish'(N,A,Mod).
|
|
abolish(N,A) :-
|
|
'$current_module'(Mod),
|
|
'$abolish'(N,A,Mod).
|
|
|
|
'$abolish'(N,A,M) :- var(N), !,
|
|
'$do_error'(instantiation_error,abolish(M:N,A)).
|
|
'$abolish'(N,A,M) :- var(A), !,
|
|
'$do_error'(instantiation_error,abolish(M:N,A)).
|
|
'$abolish'(N,A,M) :-
|
|
( recorded('$predicate_defs','$predicate_defs'(N,A,M,_),R) -> erase(R) ),
|
|
fail.
|
|
'$abolish'(N,A,M) :- functor(T,N,A),
|
|
( '$is_dynamic'(T, M) -> '$abolishd'(T,M) ;
|
|
/* else */ '$abolishs'(T,M) ).
|
|
|
|
abolish(M:X) :- !,
|
|
'$abolish'(X,M).
|
|
abolish(X) :-
|
|
'$current_module'(M),
|
|
'$abolish'(X,M).
|
|
|
|
'$abolish'(X,M) :-
|
|
'$access_yap_flags'(8, 2), !,
|
|
'$new_abolish'(X,M).
|
|
'$abolish'(X, M) :-
|
|
'$old_abolish'(X,M).
|
|
|
|
'$new_abolish'(V,M) :- var(V), !,
|
|
'$abolish_all'(M).
|
|
'$new_abolish'(A,M) :- atom(A), !,
|
|
'$abolish_all_atoms'(A,M).
|
|
'$new_abolish'(M:PS,_) :- !,
|
|
'$new_abolish'(PS,M).
|
|
'$new_abolish'(Na/Ar, M) :-
|
|
functor(H, Na, Ar),
|
|
'$is_dynamic'(H, M), !,
|
|
'$abolishd'(H, M).
|
|
'$new_abolish'(Na/Ar, M) :- % succeed for undefined procedures.
|
|
functor(T, Na, Ar),
|
|
'$undefined'(T, M), !.
|
|
'$new_abolish'(Na/Ar, M) :-
|
|
'$do_error'(permission_error(modify,static_procedure,Na/Ar),abolish(M:Na/Ar)).
|
|
'$new_abolish'(T, M) :-
|
|
'$do_error'(type_error(predicate_indicator,T),abolish(M:T)).
|
|
|
|
'$abolish_all'(M) :-
|
|
'$current_predicate'(M,Na,Ar),
|
|
'$new_abolish'(Na/Ar, M),
|
|
fail.
|
|
'$abolish_all'(_).
|
|
|
|
'$abolish_all_atoms'(Na, M) :-
|
|
'$current_predicate_for_atom'(Na,M,Ar),
|
|
'$new_abolish'(Na/Ar, M),
|
|
fail.
|
|
'$abolish_all_atoms'(_,_).
|
|
|
|
'$check_error_in_predicate_indicator'(V, Msg) :-
|
|
var(V), !,
|
|
'$do_error'(instantiation_error, Msg).
|
|
'$check_error_in_predicate_indicator'(M:S, Msg) :- !,
|
|
'$check_error_in_module'(M, Msg),
|
|
'$check_error_in_predicate_indicator'(S, Msg).
|
|
'$check_error_in_predicate_indicator'(S, Msg) :-
|
|
S \= _/_, !,
|
|
'$do_error'(type_error(predicate_indicator,S), Msg).
|
|
'$check_error_in_predicate_indicator'(Na/_, Msg) :-
|
|
var(Na), !,
|
|
'$do_error'(instantiation_error, Msg).
|
|
'$check_error_in_predicate_indicator'(Na/_, Msg) :-
|
|
\+ atom(Na), !,
|
|
'$do_error'(type_error(atom,Na), Msg).
|
|
'$check_error_in_predicate_indicator'(_/Ar, Msg) :-
|
|
var(Ar), !,
|
|
'$do_error'(instantiation_error, Msg).
|
|
'$check_error_in_predicate_indicator'(_/Ar, Msg) :-
|
|
\+ integer(Ar), !,
|
|
'$do_error'(type_error(integer,Ar), Msg).
|
|
'$check_error_in_predicate_indicator'(_/Ar, Msg) :-
|
|
Ar < 0, !,
|
|
'$do_error'(domain_error(not_less_than_zero,Ar), Msg).
|
|
% not yet implemented!
|
|
%'$check_error_in_predicate_indicator'(Na/Ar, Msg) :-
|
|
% Ar < maxarity, !,
|
|
% '$do_error'(type_error(representation_error(max_arity),Ar), Msg).
|
|
|
|
'$check_error_in_module'(M, Msg) :-
|
|
var(M), !,
|
|
'$do_error'(instantiation_error, Msg).
|
|
'$check_error_in_module'(M, Msg) :-
|
|
\+ atom(M), !,
|
|
'$do_error'(type_error(atom,M), Msg).
|
|
|
|
'$old_abolish'(V,M) :- var(V), !,
|
|
( '$access_yap_flags'(8, 1) ->
|
|
'$do_error'(instantiation_error,abolish(M:V))
|
|
;
|
|
'$abolish_all_old'(M)
|
|
).
|
|
'$old_abolish'(N/A, M) :- !,
|
|
'$abolish'(N, A, M).
|
|
'$old_abolish'(A,M) :- atom(A), !,
|
|
( '$access_yap_flags'(8, 1) ->
|
|
'$do_error'(type_error(predicate_indicator,A),abolish(M:A))
|
|
;
|
|
'$abolish_all_atoms_old'(A,M)
|
|
).
|
|
'$old_abolish'(M:N,_) :- !,
|
|
'$old_abolish'(N,M).
|
|
'$old_abolish'([], _) :- !.
|
|
'$old_abolish'([H|T], M) :- !, '$old_abolish'(H, M), '$old_abolish'(T, M).
|
|
'$old_abolish'(T, M) :-
|
|
'$do_error'(type_error(predicate_indicator,T),abolish(M:T)).
|
|
|
|
'$abolish_all_old'(M) :-
|
|
'$current_predicate'(M, Na, Ar),
|
|
'$abolish'(Na, Ar, M),
|
|
fail.
|
|
'$abolish_all_old'(_).
|
|
|
|
'$abolish_all_atoms_old'(Na, M) :-
|
|
'$current_predicate_for_atom'(Na, M, Ar),
|
|
'$abolish'(Na, Ar, M),
|
|
fail.
|
|
'$abolish_all_atoms_old'(_,_).
|
|
|
|
'$abolishd'(T, M) :-
|
|
'$is_multifile'(T,M),
|
|
functor(T,Name,Arity),
|
|
recorded('$mf','$mf_clause'(_,Name,Arity,M,Ref),R),
|
|
erase(R),
|
|
erase(Ref),
|
|
fail.
|
|
'$abolishd'(T, M) :-
|
|
'$purge_clauses'(T,M), fail.
|
|
'$abolishd'(T, M) :- '$kill_dynamic'(T,M), fail.
|
|
'$abolishd'(_, _).
|
|
|
|
'$abolishs'(G, M) :- '$system_predicate'(G,M), !,
|
|
functor(G,Name,Arity),
|
|
'$do_error'(permission_error(modify,static_procedure,Name/Arity),abolish(M:G)).
|
|
'$abolishs'(G, Module) :-
|
|
'$access_yap_flags'(8, 2), % only do this in sicstus mode
|
|
'$undefined'(G, Module),
|
|
functor(G,Name,Arity),
|
|
'$print_message'(warning,no_match(abolish(Module:Name/Arity))).
|
|
% I cannot allow modifying static procedures in YAPOR
|
|
% this code has to be here because of abolish/2
|
|
'$abolishs'(G, Module) :-
|
|
'$has_yap_or', !,
|
|
functor(G,A,N),
|
|
'$do_error'(permission_error(modify,static_procedure,A/N),abolish(Module:G)).
|
|
'$abolishs'(G, M) :-
|
|
'$is_multifile'(G,M), !,
|
|
functor(G,Name,Arity),
|
|
recorded('$mf','$mf_clause'(_,Name,Arity,M,Ref),R),
|
|
erase(R),
|
|
erase(Ref),
|
|
fail.
|
|
'$abolishs'(G, M) :-
|
|
'$purge_clauses'(G, M), fail.
|
|
'$abolishs'(_, _).
|
|
|
|
%
|
|
% can only do as goal in YAP mode.
|
|
%
|
|
dynamic(X) :- '$access_yap_flags'(8, 0), !,
|
|
'$current_module'(M),
|
|
'$dynamic'(X, M).
|
|
dynamic(X) :-
|
|
'$do_error'(context_error(dynamic(X),declaration),query).
|
|
|
|
'$dynamic'(X,M) :- var(X), !,
|
|
'$do_error'(instantiation_error,dynamic(M:X)).
|
|
'$dynamic'(Mod:Spec,_) :- !,
|
|
'$dynamic'(Spec,Mod).
|
|
'$dynamic'([], _) :- !.
|
|
'$dynamic'([H|L], M) :- !, '$dynamic'(H, M), '$dynamic'(L, M).
|
|
'$dynamic'((A,B),M) :- !, '$dynamic'(A,M), '$dynamic'(B,M).
|
|
'$dynamic'(X,M) :-
|
|
'$dynamic2'(X,M).
|
|
|
|
'$dynamic2'(X, Mod) :- '$log_upd'(Stat), Stat\=0, !,
|
|
'$logical_updatable'(X, Mod).
|
|
'$dynamic2'(A/N, Mod) :-
|
|
integer(N), atom(A), !,
|
|
functor(T,A,N), '$flags'(T,Mod,F,F),
|
|
% LogUpd,BinaryTest,Safe,C,Dynamic,Compiled,Standard,Asm,
|
|
( F/\ 0x19D1FA80 =:= 0, '$undefined'(T,Mod) -> NF is F \/ 0x00002000, '$flags'(T, Mod, F, NF);
|
|
F /\ 0x00002000 =:= 0x00002000 -> true; % dynamic
|
|
F /\ 0x08000000 =:= 0x08000000 -> true ; % LU
|
|
F /\ 0x00000400 =:= 0x00000400, '$undefined'(T,Mod) -> F1 is F /\ \(0x400), N1F is F1 \/ 0x00002000, NF is N1F /\ \(0x00400000), '$flags'(T,Mod,F,NF);
|
|
'$do_error'(permission_error(modify,static_procedure,A/N),dynamic(Mod:A/N))
|
|
).
|
|
'$dynamic2'(X,Mod) :-
|
|
'$do_error'(type_error(callable,X),dynamic(Mod:X)).
|
|
|
|
|
|
'$logical_updatable'(A/N,Mod) :- integer(N), atom(A), !,
|
|
functor(T,A,N), '$flags'(T,Mod,F,F),
|
|
(
|
|
F/\ 0x19D1FA80 =:= 0, '$undefined'(T,Mod) -> NF is F \/ 0x08000400, '$flags'(T,Mod,F,NF);
|
|
F /\ 0x08000000 =:= 0x08000000 -> true ; % LU
|
|
F /\ 0x00002000 =:= 0x00002000 -> true; % dynamic
|
|
F /\ 0x00000400 =:= 0x00000400 , '$undefined'(T,Mod) -> N1F is F \/ 0x08000000, NF is N1F /\ \(0x00400000), '$flags'(T,Mod,F,NF);
|
|
'$do_error'(permission_error(modify,static_procedure,A/N),dynamic(Mod:A/N))
|
|
).
|
|
'$logical_updatable'(X,Mod) :-
|
|
'$do_error'(type_error(callable,X),dynamic(Mod:X)).
|
|
|
|
|
|
dynamic_predicate(P,Sem) :-
|
|
'$bad_if_is_semantics'(Sem, dynamic(P,Sem)).
|
|
dynamic_predicate(P,Sem) :-
|
|
'$log_upd'(OldSem),
|
|
( Sem = logical -> '$switch_log_upd'(1) ; '$switch_log_upd'(0) ),
|
|
'$current_module'(M),
|
|
'$dynamic'(P, M),
|
|
'$switch_log_upd'(OldSem).
|
|
|
|
'$bad_if_is_semantics'(Sem, Goal) :-
|
|
var(Sem), !,
|
|
'$do_error'(instantiation_error,Goal).
|
|
'$bad_if_is_semantics'(Sem, Goal) :-
|
|
Sem \= immediate, Sem \= logical, !,
|
|
'$do_error'(domain_error(semantics_indicator,Sem),Goal).
|
|
|
|
|
|
'$expand_clause'(C0,C1,C2,Mod) :-
|
|
'$expand_term_modules'(C0, C1, C2, Mod),
|
|
( get_value('$strict_iso',on) ->
|
|
'$check_iso_strict_clause'(C1)
|
|
;
|
|
true
|
|
).
|
|
|
|
'$public'(X, _) :- var(X), !,
|
|
'$do_error'(instantiation_error,public(X)).
|
|
'$public'(Mod:Spec, _) :- !,
|
|
'$public'(Spec,Mod).
|
|
'$public'((A,B), M) :- !, '$public'(A,M), '$public'(B,M).
|
|
'$public'([],_) :- !.
|
|
'$public'([H|L], M) :- !, '$public'(H, M), '$public'(L, M).
|
|
'$public'(A/N, Mod) :- integer(N), atom(A), !,
|
|
functor(T,A,N),
|
|
'$do_make_public'(T, Mod).
|
|
'$public'(X, Mod) :-
|
|
'$do_error'(type_error(callable,X),dynamic(Mod:X)).
|
|
|
|
'$do_make_public'(T, Mod) :-
|
|
'$is_dynamic'(T, Mod), !. % all dynamic predicates are public.
|
|
'$do_make_public'(T, Mod) :-
|
|
'$flags'(T,Mod,F,F),
|
|
NF is F\/0x00400000,
|
|
'$flags'(T,Mod,F,NF).
|
|
|
|
'$is_public'(T, Mod) :-
|
|
'$is_dynamic'(T, Mod), !. % all dynamic predicates are public.
|
|
'$is_public'(T, Mod) :-
|
|
'$flags'(T,Mod,F,F),
|
|
F\/0x00400000 =\= 0.
|
|
|
|
hide_predicate(V) :- var(V), !,
|
|
'$do_error'(instantiation_error,hide_predicate(V)).
|
|
hide_predicate(M:P) :- !,
|
|
'$hide_predicate2'(P, M).
|
|
hide_predicate(P) :-
|
|
'$current_module'(M),
|
|
'$hide_predicate2'(M, P).
|
|
|
|
'$hide_predicate2'(V, M) :- var(V), !,
|
|
'$do_error'(instantiation_error,hide_predicate(M:V)).
|
|
'$hide_predicate2'(N/A, M) :- !,
|
|
functor(S,N,A),
|
|
'$hide_predicate'(S, M) .
|
|
'$hide_predicate2'(PredDesc, M) :-
|
|
'$do_error'(type_error(predicate_indicator,PredDesc),hide_predicate(M:PredDesc)).
|
|
|
|
predicate_property(Mod:Pred,Prop) :- !,
|
|
'$predicate_property2'(Pred,Prop,Mod).
|
|
predicate_property(Pred,Prop) :-
|
|
'$current_module'(Mod),
|
|
'$predicate_property2'(Pred,Prop,Mod).
|
|
|
|
'$predicate_property2'(Pred,Prop,M) :- var(Pred), !,
|
|
'$generate_all_preds_from_mod'(Pred, SourceMod, M),
|
|
'$predicate_property'(Pred,SourceMod,M,Prop).
|
|
'$predicate_property2'(M:Pred,Prop,_) :- !,
|
|
'$predicate_property2'(Pred,Prop,M).
|
|
'$predicate_property2'(Pred,Prop,Mod) :-
|
|
'$pred_exists'(Pred,Mod), !,
|
|
'$predicate_property'(Pred,Mod,Mod,Prop).
|
|
'$predicate_property2'(Pred,Prop,Mod) :-
|
|
functor(Pred, N, K),
|
|
recorded('$import','$import'(M,Mod,N,K),_),
|
|
'$predicate_property'(Pred,M,Mod,Prop).
|
|
|
|
'$generate_all_preds_from_mod'(Pred, M, M) :-
|
|
'$current_predicate'(M,Na,Ar),
|
|
functor(Pred, Na, Ar).
|
|
'$generate_all_preds_from_mod'(Pred, SourceMod, Mod) :-
|
|
recorded('$import','$import'(SourceMod,Mod,N,K),_),
|
|
functor(Pred, N, K).
|
|
|
|
|
|
'$predicate_property'(P,M,_,built_in) :-
|
|
'$system_predicate'(P,M), !.
|
|
'$predicate_property'(P,M,_,source) :-
|
|
'$flags'(P,M,F,F),
|
|
F /\ 0x00400000 =\= 0.
|
|
'$predicate_property'(P,M,_,tabled) :-
|
|
'$flags'(P,M,F,F),
|
|
F /\ 0x00000040 =\= 0.
|
|
'$predicate_property'(P,M,_,dynamic) :-
|
|
'$is_dynamic'(P,M).
|
|
'$predicate_property'(P,M,_,static) :-
|
|
\+ '$is_dynamic'(P,M),
|
|
\+ '$undefined'(P,M).
|
|
'$predicate_property'(P,M,_,meta_predicate(P)) :-
|
|
functor(P,Na,Ar),
|
|
'$meta_predicate'(M,Na,Ar,P).
|
|
'$predicate_property'(P,M,_,multifile) :-
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'$is_multifile'(P,M).
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'$predicate_property'(P,Mod,M,imported_from(Mod)) :-
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functor(P,N,K),
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recorded('$import','$import'(Mod,M,N,K),_).
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'$predicate_property'(P,M,_,public) :-
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'$is_public'(P,M).
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'$predicate_property'(P,M,M,exported) :-
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functor(P,N,A),
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recorded('$module','$module'(_TFN,M,Publics),_),
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'$member'(N/A,Publics), !. /* defined in modules.yap */
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'$predicate_property'(P,Mod,_,number_of_clauses(NCl)) :-
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'$number_of_clauses'(P,Mod,NCl).
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predicate_statistics(V,NCls,Sz,ISz) :- var(V), !,
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'$do_error'(instantiation_error,predicate_statistics(V,NCls,Sz,ISz)).
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predicate_statistics(M:P,NCls,Sz,ISz) :- !,
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'$predicate_statistics'(P,M,NCls,Sz,ISz).
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predicate_statistics(P,NCls,Sz,ISz) :-
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'$current_module'(M),
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'$predicate_statistics'(P,M,NCls,Sz,ISz).
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'$predicate_statistics'(M:P,_,NCls,Sz,ISz) :- !,
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'$predicate_statistics'(P,M,NCls,Sz,ISz).
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'$predicate_statistics'(P,M,NCls,Sz,ISz) :-
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'$is_log_updatable'(P, M), !,
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'$lu_statistics'(P,NCls,Sz,ISz,M).
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'$predicate_statistics'(P,M,_,_,_) :-
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'$system_predicate'(P,M), !, fail.
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'$predicate_statistics'(P,M,_,_,_) :-
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'$undefined'(P,M), !, fail.
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'$predicate_statistics'(P,M,NCls,Sz,ISz) :-
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'$static_pred_statistics'(P,M,NCls,Sz,ISz).
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