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recover deleted stuff

This commit is contained in:
Vítor Santos Costa 2015-10-22 11:58:59 +01:00
parent a9fa343bad
commit db8d44efdc
1 changed files with 24 additions and 0 deletions
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24
pl/preddyns.yap
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@ -110,6 +110,30 @@ assert(C) :-
asserta_static(Mod:(H :- B))
).
'$assert_clause2'(HI,BI,Mod,Where,R,P) :-
'$expand_clause'((HI :- BI),C0,C,Mod,HM),
'$assert_clause3'(C0,C,HM,Where,R,P).
'$assert_clause3'(C0,C,Mod,Where,R,P) :-
'$check_head_and_body'(C,H,B,P),
( '$is_log_updatable'(H, Mod) ->
'$compile_dynamic'((H :- B), Where, C0, Mod, R)
;
'$is_dynamic'(H, Mod) ->
'$assertat_d'(Where, H, B, C0, Mod, R)
;
'$undefined'(H,Mod) ->
functor(H, Na, Ar),
dynamic(Mod:Na/Ar),
'$assert_clause3'(C0,C,Mod,Where,R,P)
;
current_prolog_flag(language, sicstus) -> % I can assert over static facts in YAP mode
'$assert1'(Where,C,C0,Mod,H)
;
functor(H, Na, Ar),
'$do_error'(permission_error(modify,static_procedure,Na/Ar),P)
).
/** @pred asserta(+ _C_,- _R_)
The same as `asserta(C)` but unifying _R_ with