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yap-6.3/library/ytest/preds.yap

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:- [library(hacks)].
'$predicate_flags'(P, M, Flags0, Flags1) :-
var(Flags0),
Flags0 == Flags1,
!,
(
predicate_property(M:P, meta_predicate(_))
->
Flags1 = 0x200000
).
'$predicate_flags'(P, M, Flags0, Flags1) :-
( Flags1 /\ 0x200000 =\= 0,
Flags0 /\ 0x200000 =:= 0
->
true
;
Flags1 /\ 0x200000 =\= 0,
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Flags0 /\ 0x200000 =\= 0
).
'$get_undefined_pred'(G,M,G,M0) :-
predicate_property(M:G, imported_from(M0)), !.
'$get_undefined_pred'(G,M,G,OM) :-
functor(G,F,N),
( system_predicate(F/N), OM = prolog ; current_predicate(user:F/N), OM= user), !.
'$get_undefined_pred'(G,M,G,M0) :-
predicate_property(M:G, imported_from(M0)), !.
'$get_undefined_pred'(G,M,G,M).
'$is_metapredicate'( call(_), _M) :- !.
'$is_metapredicate'( call(_,_), _M) :- !.
'$is_metapredicate'( G, M) :-
predicate_property(M:G, meta_predicate(_)).
'$imported_predicate'(G,M,G,M0) :-
predicate_property(M:G, imported_from(M0)).
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'$is_system_predicate'( call(_), _M) :- !.
'$is_system_predicate'( call(_,_), _M) :- !.
'$is_system_predicate'(G,M) :-
predicate_property(M:G, built_in).
'$is_multifile'(G,M) :-
predicate_property(M:G, multifile).
'$module_transparent'(_,_,_,_) :- fail.
'$meta_predicate'(call,_M,1,call(0)) :- !.
'$meta_predicate'(call,_M,2,call(1,?)) :- !.
'$meta_predicate'(F,M,N,P) :-
functor(G, F, N),
predicate_property(M:G, meta_predicate(P)).
user:term_expansion( ( :- '$meta_predicate'( _ ) ), [] ).
user:goal_expansion(_:'_user_expand_goal'(A, M, B), user:user_expand_goal(A, M, B) ).
user_expand_goal(A, M, B) :-
(
current_predicate(M:goal_expansion/2),
M:goal_expansion(A,B) -> true ;
system:goal_expansion(A,B) -> true ;
user:goal_expansion(A,M,B) -> true ;
user:goal_expansion(A,B) -> true
).
user:goal_expansion(prolog:'$meta_predicate'(N,M,A,D) , user:mt( N, M, A, D) ).
mt(N,M,A,D) :-
functor(D,N,A),
predicate_property(M:D, meta_predicate(D)).
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'$full_clause_optimisation'(_H, _M, B, B).
'$c_built_in'(G, _SM, _H, G).
'$head_and_body'((H:-B),H,B) :- !.
'$head_and_body'(H,H,true).
'$yap_strip_module'(T,M,S) :-
fully_strip_module(T,M,S).
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:- hide_predicate( expand_goal ).
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:- include(library(boot/meta)).