3962e559aa
improve error message on redefining system predicate git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@252 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
615 lines
17 KiB
Prolog
615 lines
17 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: directives.yap *
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* Last rev: *
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* mods: *
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* comments: directing system execution *
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* *
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*************************************************************************/
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'$directive'(multifile(_)).
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'$directive'(discontiguous(_)).
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'$directive'(initialization(_)).
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'$directive'(include(_)).
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'$directive'(module(_,_)).
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'$directive'(module(_,_,_)).
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'$directive'(meta_predicate(_)).
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'$directive'(public(_)).
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'$directive'(dynamic(_)).
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'$directive'(op(_,_,_)).
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'$directive'(set_prolog_flag(_,_)).
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'$directive'(ensure_loaded(_)).
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'$directive'(char_conversion(_,_)).
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'$directive'(compile(_)).
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'$directive'(consult(_)).
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'$directive'(reconsult(_)).
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'$directive'(sequential).
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'$directive'(parallel).
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'$directive'(sequential(_)).
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'$directive'(block(_)).
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'$directive'(wait(_)).
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'$exec_directive'(multifile(D), _, M) :-
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'$system_catch'('$multifile'(D, M),
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Error,
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user:'$LoopError'(Error)).
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'$exec_directive'(discontiguous(D), _, M) :-
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'$discontiguous'(D,M).
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'$exec_directive'(initialization(D), _, M) :-
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'$initialization'(M:D).
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'$exec_directive'(parallel, _, _) :-
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'$parallel'.
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'$exec_directive'(sequential, _, _) :-
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'$sequential'.
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'$exec_directive'(sequential(G), _, M) :-
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'$sequential_directive'(G, M).
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'$exec_directive'(parallel(G), _, M) :-
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'$parallel_directive'(G, M).
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'$exec_directive'(include(F), Status, _) :-
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'$include'(F, Status).
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'$exec_directive'(module(N,P), Status, _) :-
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'$module'(Status,N,P).
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'$exec_directive'(module(N,P,Op), Status, _) :-
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'$module'(Status,N,P,Op).
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'$exec_directive'(meta_predicate(P), _, M) :-
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'$meta_predicate'(P, M).
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'$exec_directive'(dynamic(P), _, M) :-
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'$dynamic'(P, M).
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'$exec_directive'(op(P,OPSEC,OP), _, _) :-
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op(P,OPSEC,OP).
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'$exec_directive'(set_prolog_flag(F,V), _, _) :-
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set_prolog_flag(F,V).
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'$exec_directive'(ensure_loaded(F), _, _) :-
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'$ensure_loaded'(F).
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'$exec_directive'(char_conversion(IN,OUT), _, _) :-
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char_conversion(IN,OUT).
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'$exec_directive'(public(P), _, M) :-
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'$public'(P, M).
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'$exec_directive'(compile(F), _, _) :-
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'$compile'(F).
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'$exec_directive'(reconsult(Fs), _, _) :-
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'$reconsult'(Fs).
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'$exec_directive'(consult(Fs), _, _) :-
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'$consult'(Fs).
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'$exec_directive'(block(BlockSpec), _, _) :-
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'$block'(BlockSpec).
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'$exec_directive'(wait(BlockSpec), _, _) :-
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'$wait'(BlockSpec).
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'$exec_directive'(table(PredSpec), _, M) :-
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'$table'(PredSpec, M).
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'$exec_directives'((G1,G2), Mode, M) :- !,
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'$exec_directives'(G1, Mode, M),
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'$exec_directives'(G2, Mode, M).
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'$exec_directives'(G, Mode, M) :-
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'$exec_directive'(G, Mode, M).
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yap_flag(V,Out) :-
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var(V), !,
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'$show_yap_flag_opts'(V,Out).
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% do or do not machine code
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yap_flag(fast,on) :- '$set_value'('$fast',true).
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yap_flag(fast,off) :- !, '$set_value'('$fast',[]).
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% hide/unhide atoms
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yap_flag(hide,Atom) :- !, hide(Atom).
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yap_flag(unhide,Atom) :- !, unhide(Atom).
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% control garbage collection
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yap_flag(gc,V) :-
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var(V), !,
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( '$get_value'('$gc',[]) -> V = off ; V = on).
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yap_flag(gc,on) :- '$set_value'('$gc',true).
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yap_flag(gc,off) :- '$set_value'('$gc',[]).
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yap_flag(gc_margin,N) :-
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var(N) ->
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'$get_value'('$gc_margin',N)
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;
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integer(N) ->
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'$set_value'('$gc_margin',N).
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yap_flag(gc_trace,V) :-
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var(V), !,
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'$get_value'('$gc_trace',N1),
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'$get_value'('$gc_verbose',N2),
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'$yap_flag_show_tracing'(N1, N2, V).
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yap_flag(gc_trace,on) :-
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'$set_value'('$gc_trace',true),
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'$set_value'('$gc_verbose',[]).
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yap_flag(gc_trace,verbose) :-
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'$set_value'('$gc_trace',[]),
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'$set_value'('$gc_verbose',true).
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yap_flag(gc_trace,off) :-
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'$set_value'('$gc_trace',[]),
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'$set_value'('$gc_verbose',[]).
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yap_flag(syntax_errors, V) :- var(V), !,
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'$get_read_error_handler'(V).
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yap_flag(syntax_errors, Option) :-
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'$set_read_error_handler'(Option).
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% compatibility flag
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yap_flag(enhanced,on) :- '$set_value'('$enhanced',true).
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yap_flag(enhanced,off) :- '$set_value'('$enhanced',[]).
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%
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% show state of $
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%
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yap_flag(dollar_as_lower_case,V) :-
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var(V), !,
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'$type_of_char'(36,T),
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(T = 3 -> V = on ; V = off).
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%
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% make $a a legit atom
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%
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yap_flag(dollar_as_lower_case,on) :-
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'$change_type_of_char'(36,3).
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%
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% force quoting of '$a'
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%
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yap_flag(dollar_as_lower_case,off) :-
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'$change_type_of_char'(36,7).
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yap_flag(profiling,X) :- (var(X); X = on; X = off), !,
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'$is_profiled'(X).
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yap_flag(bounded,X) :-
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var(X), !,
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'$access_yap_flags'(0, X1),
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'$transl_to_true_false'(X1,X).
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yap_flag(bounded,X) :-
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(X = true ; X = false), !,
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throw(error(permission_error(modify,flag,bounded),yap_flag(bounded,X))).
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yap_flag(bounded,X) :-
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throw(error(domain_error(flag_value,bounded+X),yap_flag(bounded,X))).
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% do or do not indexation
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yap_flag(index,X) :- var(X), !,
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( '$get_value'('$doindex',true) -> X=on ; X=off).
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yap_flag(index,on) :- !, '$set_value'('$doindex',true).
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yap_flag(index,off) :- !, '$set_value'('$doindex',[]).
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yap_flag(integer_rounding_function,X) :-
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var(X), !,
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'$access_yap_flags'(2, X1),
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'$transl_to_rounding_function'(X1,X).
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yap_flag(integer_rounding_function,X) :-
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(X = down; X = toward_zero), !,
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throw(error(permission_error(modify,flag,integer_rounding_function),yap_flag(integer_rounding_function,X))).
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yap_flag(integer_rounding_function,X) :-
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throw(error(domain_error(flag_value,integer_rounding_function+X),yap_flag(integer_rounding_function,X))).
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yap_flag(max_arity,X) :-
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var(X), !,
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'$access_yap_flags'(1, X1),
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'$transl_to_arity'(X1,X).
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yap_flag(max_arity,X) :-
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integer(X), X > 0, !,
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throw(error(permission_error(modify,flag,max_arity),yap_flag(max_arity,X))).
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yap_flag(max_arity,X) :-
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throw(error(domain_error(flag_value,max_arity+X),yap_flag(max_arity,X))).
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yap_flag(version,X) :-
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var(X), !,
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'$get_value'('$version_name',X).
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yap_flag(version,X) :-
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throw(error(permission_error(modify,flag,version),yap_flag(version,X))).
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yap_flag(max_integer,X) :-
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var(X), !,
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'$access_yap_flags'(0, 1),
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'$access_yap_flags'(3, X).
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yap_flag(max_integer,X) :-
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integer(X), X > 0, !,
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throw(error(permission_error(modify,flag,max_integer),yap_flag(max_integer,X))).
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yap_flag(max_integer,X) :-
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throw(error(domain_error(flag_value,max_integer+X),yap_flag(max_integer,X))).
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yap_flag(min_integer,X) :-
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var(X), !,
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'$access_yap_flags'(0, 1),
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'$access_yap_flags'(4, X).
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yap_flag(min_integer,X) :-
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integer(X), X < 0, !,
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throw(error(permission_error(modify,flag,min_integer),yap_flag(min_integer,X))).
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yap_flag(min_integer,X) :-
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throw(error(domain_error(flag_value,min_integer+X),yap_flag(min_integer,X))).
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yap_flag(char_conversion,X) :-
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var(X), !,
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'$access_yap_flags'(5, X1),
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'$transl_to_on_off'(X1,X).
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yap_flag(char_conversion,X) :-
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'$transl_to_on_off'(X1,X), !,
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'$set_yap_flags'(5,X1),
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( X1 = 1 ->
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'$force_char_conversion'
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;
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'$disable_char_conversion'
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).
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yap_flag(char_conversion,X) :-
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throw(error(domain_error(flag_value,char_conversion+X),yap_flag(char_conversion,X))).
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yap_flag(double_quotes,X) :-
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var(X), !,
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'$access_yap_flags'(6, X1),
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'$transl_to_trl_types'(X1,X).
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yap_flag(double_quotes,X) :-
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'$transl_to_trl_types'(X1,X), !,
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'$set_yap_flags'(6,X1).
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yap_flag(double_quotes,X) :-
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throw(error(domain_error(flag_value,double_quotes+X),yap_flag(double_quotes,X))).
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yap_flag(n_of_integer_keys_in_db,X) :-
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var(X), !,
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'$resize_int_keys'(X).
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yap_flag(n_of_integer_keys_in_db,X) :- integer(X), X > 0, !,
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'$resize_int_keys'(X).
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yap_flag(n_of_integer_keys_in_db,X) :-
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throw(error(domain_error(flag_value,n_of_integer_keys_in_db+X),yap_flag(n_of_integer_keys_in_db,X))).
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yap_flag(n_of_integer_keys_in_bb,X) :-
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var(X), !,
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'$resize_bb_int_keys'(X).
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yap_flag(n_of_integer_keys_in_bb,X) :- integer(X), X > 0, !,
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'$resize_bb_int_keys'(X).
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yap_flag(n_of_integer_keys_in_bb,X) :-
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throw(error(domain_error(flag_value,n_of_integer_keys_in_bb+X),yap_flag(n_of_integer_keys_in_bb,X))).
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yap_flag(strict_iso,OUT) :-
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var(OUT), !,
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'$access_yap_flags'(9,X),
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'$transl_to_on_off'(X,OUT).
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yap_flag(strict_iso,on) :- !,
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yap_flag(language,iso),
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'$transl_to_on_off'(X,on),
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'$set_yap_flags'(9,X).
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yap_flag(strict_iso,off) :- !,
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'$transl_to_on_off'(X,off),
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'$set_yap_flags'(9,X).
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yap_flag(strict_iso,X) :-
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throw(error(domain_error(flag_value,strict_iso+X),yap_flag(strict_iso,X))).
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yap_flag(language,X) :-
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var(X), !,
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'$access_yap_flags'(8, X1),
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'$trans_to_lang_flag'(X1,X).
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yap_flag(language,X) :-
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'$trans_to_lang_flag'(N,X), !,
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'$set_yap_flags'(8,N),
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'$adjust_language'(X).
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yap_flag(language,X) :-
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throw(error(domain_error(flag_value,language+X),yap_flag(language,X))).
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yap_flag(debug,X) :-
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var(X), !,
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('$get_value'(debug,1) ->
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X = on
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;
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X = off
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).
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yap_flag(debug,X) :-
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'$transl_to_on_off'(_,X), !,
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(X = on -> debug ; nodebug).
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yap_flag(debug,X) :-
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throw(error(domain_error(flag_value,debug+X),yap_flag(debug,X))).
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yap_flag(discontiguous_warnings,X) :-
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var(X), !,
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('$syntax_check_mode'(on,_), '$syntax_check_discontiguous'(on,_) ->
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X = on
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;
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X = off
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).
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yap_flag(discontiguous_warnings,X) :-
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'$transl_to_on_off'(_,X), !,
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(X = on ->
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'$syntax_check_mode'(_,on),
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'$syntax_check_discontiguous'(_,on)
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;
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'$syntax_check_discontiguous'(_,off)).
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yap_flag(discontiguous_warnings,X) :-
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throw(error(domain_error(flag_value,discontiguous_warnings+X),yap_flag(discontiguous_warnings,X))).
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yap_flag(redefine_warnings,X) :-
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var(X), !,
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('$syntax_check_mode'(on,_), '$syntax_check_multiple'(on,_) ->
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X = on
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;
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X = off
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).
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yap_flag(redefine_warnings,X) :-
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'$transl_to_on_off'(_,X), !,
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(X = on ->
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'$syntax_check_mode'(_,on),
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'$syntax_check_multiple'(_,on)
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;
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'$syntax_check_multiple'(_,off)).
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yap_flag(redefine_warnings,X) :-
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throw(error(domain_error(flag_value,redefine_warnings+X),yap_flag(redefine_warnings,X))).
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yap_flag(single_var_warnings,X) :-
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var(X), !,
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('$syntax_check_mode'(on,_), '$syntax_check_single_var'(on,_) ->
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X = on
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;
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X = off
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).
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yap_flag(single_var_warnings,X) :-
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'$transl_to_on_off'(_,X), !,
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(X = on ->
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'$syntax_check_mode'(_,on),
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'$syntax_check_single_var'(_,on)
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;
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'$syntax_check_single_var'(_,off)).
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yap_flag(single_var_warnings,X) :-
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throw(error(domain_error(flag_value,single_var_warnings+X),yap_flag(single_var_warnings,X))).
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yap_flag(unknown,X) :-
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var(X), !,
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unknown(X,_).
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yap_flag(unknown,N) :-
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unknown(_,N).
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yap_flag(to_chars_mode,X) :-
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var(X), !,
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( '$access_yap_flags'(7,0) -> X = quintus ; X = iso ).
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yap_flag(to_chars_mode,quintus) :- !,
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'$set_yap_flags'(7,0).
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yap_flag(to_chars_mode,iso) :- !,
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'$set_yap_flags'(7,1).
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yap_flag(to_chars_mode,X) :-
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throw(error(domain_error(flag_value,to_chars_mode+X),yap_flag(to_chars_mode,X))).
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yap_flag(character_escapes,X) :-
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var(X), !,
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'$access_yap_flags'(12,Y),
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'$transl_to_character_escape_modes'(Y,X).
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yap_flag(character_escapes,X) :- !,
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'$transl_to_character_escape_modes'(Y,X), !,
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'$set_yap_flags'(12,Y).
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yap_flag(character_escapes,X) :-
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throw(error(domain_error(flag_value,character_escapes+X),yap_flag(to_chars_mode,X))).
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yap_flag(update_semantics,X) :-
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var(X), !,
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( '$log_upd'(I) -> '$convert_upd_sem'(I,X) ).
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yap_flag(update_semantics,logical) :- !,
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'$switch_log_upd'(1).
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yap_flag(update_semantics,logical_assert) :- !,
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'$switch_log_upd'(2).
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yap_flag(update_semantics,immediate) :- !,
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'$switch_log_upd'(0).
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yap_flag(update_semantics,X) :-
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throw(error(domain_error(flag_value,update_semantics+X),yap_flag(update_semantics,X))).
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yap_flag(toplevel_hook,X) :-
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var(X), !,
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( '$recorded'('$toplevel_hooks',G,_) -> G ; true ).
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yap_flag(toplevel_hook,G) :- !,
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'$set_toplevel_hook'(G).
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yap_flag(typein_module,X) :-
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var(X), !,
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'$current_module'(X).
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yap_flag(typein_module,X) :-
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module(X).
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yap_flag(write_strings,OUT) :-
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var(OUT), !,
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'$access_yap_flags'(13,X),
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'$transl_to_on_off'(X,OUT).
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yap_flag(write_strings,on) :- !,
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'$transl_to_on_off'(X,on),
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'$set_yap_flags'(13,X).
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yap_flag(write_strings,off) :- !,
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'$transl_to_on_off'(X,off),
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'$set_yap_flags'(13,X).
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yap_flag(write_strings,X) :-
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throw(error(domain_error(flag_value,write_strings+X),yap_flag(write_strings,X))).
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yap_flag(user_input,OUT) :-
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var(OUT), !,
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'$flag_check_alias'(OUT, user_input).
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yap_flag(user_input,Stream) :-
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'$change_alias_to_stream'(user_input,Stream).
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yap_flag(user_output,OUT) :-
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var(OUT), !,
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'$flag_check_alias'(OUT, user_output).
|
|
yap_flag(user_output,Stream) :-
|
|
'$change_alias_to_stream'(user_output,Stream).
|
|
|
|
|
|
yap_flag(user_error,OUT) :-
|
|
var(OUT), !,
|
|
'$flag_check_alias'(OUT, user_error).
|
|
yap_flag(user_error,Stream) :-
|
|
'$change_alias_to_stream'(user_error,Stream).
|
|
|
|
yap_flag(debugger_print_options,OUT) :-
|
|
var(OUT),
|
|
'$recorded'('$print_options','$debugger'(OUT),_), !.
|
|
yap_flag(debugger_print_options,Opts) :- !,
|
|
'$check_io_opts'(Opts, yap_flag(debugger_print_options,Opts)),
|
|
'$recorda'('$print_options','$debugger'(Opts),_).
|
|
|
|
:- '$recorda'('$print_options','$debugger'([quoted(true),numbervars(true),portrayed(true),max_depth(10)]),_).
|
|
|
|
yap_flag(toplevel_print_options,OUT) :-
|
|
var(OUT),
|
|
'$recorded'('$print_options','$toplevel'(OUT),_), !.
|
|
yap_flag(toplevel_print_options,Opts) :- !,
|
|
'$check_io_opts'(Opts, yap_flag(toplevel_print_options,Opts)),
|
|
'$recorda'('$print_options','$toplevel'(Opts),_).
|
|
|
|
:- '$recorda'('$print_options','$toplevel'([quoted(true),numbervars(true),portrayed(true)]),_).
|
|
|
|
yap_flag(host_type,X) :-
|
|
'$host_type'(X).
|
|
|
|
'$show_yap_flag_opts'(V,Out) :-
|
|
(
|
|
V = bounded ;
|
|
V = char_conversion ;
|
|
V = character_escapes ;
|
|
V = debug ;
|
|
V = debugger_print_options ;
|
|
V = discontiguous_warnings ;
|
|
V = dollar_as_lower_case ;
|
|
V = double_quotes ;
|
|
% V = fast ;
|
|
V = gc ;
|
|
V = gc_margin ;
|
|
V = gc_trace ;
|
|
% V = hide ;
|
|
% V = host_type ;
|
|
V = index ;
|
|
V = integer_rounding_function ;
|
|
V = language ;
|
|
V = max_arity ;
|
|
V = max_integer ;
|
|
V = min_integer ;
|
|
V = n_of_integer_keys_in_db ;
|
|
V = profiling ;
|
|
V = redefine_warnings ;
|
|
V = single_var_warnings ;
|
|
V = strict_iso ;
|
|
V = syntax_errors ;
|
|
V = to_chars_mode ;
|
|
V = toplevel_hook ;
|
|
V = toplevel_print_options ;
|
|
V = typein_module ;
|
|
V = unknown ;
|
|
V = update_semantics ;
|
|
V = user_error ;
|
|
V = user_input ;
|
|
V = user_output ;
|
|
V = version ;
|
|
V = write_strings
|
|
),
|
|
yap_flag(V, Out).
|
|
|
|
'$trans_to_lang_flag'(0,cprolog).
|
|
'$trans_to_lang_flag'(1,iso).
|
|
'$trans_to_lang_flag'(2,sicstus).
|
|
|
|
'$adjust_language'(cprolog) :-
|
|
'$switch_log_upd'(0),
|
|
'$syntax_check_mode'(_,off),
|
|
'$syntax_check_single_var'(_,off),
|
|
'$syntax_check_discontiguous'(_,off),
|
|
'$syntax_check_multiple'(_,off),
|
|
'$transl_to_on_off'(Y,off), % disable character escapes.
|
|
'$set_yap_flags'(12,Y),
|
|
'$set_yap_flags'(14,1),
|
|
unknown(_,error).
|
|
'$adjust_language'(sicstus) :-
|
|
'$switch_log_upd'(1),
|
|
leash(full),
|
|
'$syntax_check_mode'(_,on),
|
|
'$syntax_check_single_var'(_,on),
|
|
'$syntax_check_discontiguous'(_,on),
|
|
'$syntax_check_multiple'(_,on),
|
|
'$transl_to_on_off'(X1,on),
|
|
'$set_yap_flags'(5,X1),
|
|
'$force_char_conversion',
|
|
'$set_yap_flags'(14,0),
|
|
unknown(_,error).
|
|
'$adjust_language'(iso) :-
|
|
'$switch_log_upd'(2),
|
|
'$syntax_check_mode'(_,on),
|
|
'$syntax_check_single_var'(_,on),
|
|
'$syntax_check_discontiguous'(_,on),
|
|
'$syntax_check_multiple'(_,on),
|
|
'$set_yap_flags'(7,1),
|
|
fileerrors,
|
|
'$transl_to_on_off'(X1,on),
|
|
'$set_yap_flags'(5,X1),
|
|
'$force_char_conversion',
|
|
'$set_yap_flags'(14,0),
|
|
unknown(_,error).
|
|
|
|
'$transl_to_character_escape_modes'(0,off) :- !.
|
|
'$transl_to_character_escape_modes'(0,cprolog).
|
|
'$transl_to_character_escape_modes'(1,on) :- !.
|
|
'$transl_to_character_escape_modes'(1,iso).
|
|
'$transl_to_character_escape_modes'(2,sicstus).
|
|
|
|
'$convert_upd_sem'(0,immediate).
|
|
'$convert_upd_sem'(1,logical).
|
|
'$convert_upd_sem'(2,logical_assert).
|
|
|
|
'$transl_to_true_false'(0,false).
|
|
'$transl_to_true_false'(1,true).
|
|
|
|
'$transl_to_on_off'(0,off).
|
|
'$transl_to_on_off'(1,on).
|
|
|
|
'$transl_to_arity'(X1,X) :- X1 < 0, !, X = unbounded.
|
|
'$transl_to_arity'(X,X).
|
|
|
|
'$transl_to_rounding_function'(0,down).
|
|
'$transl_to_rounding_function'(1,toward_zero).
|
|
|
|
'$transl_to_trl_types'(0,chars).
|
|
'$transl_to_trl_types'(1,codes).
|
|
'$transl_to_trl_types'(2,atom).
|
|
|
|
'$yap_flag_show_tracing'(true, _, on) :- !.
|
|
'$yap_flag_show_tracing'(_, true, verbose) :- !.
|
|
'$yap_flag_show_tracing'(_, _, off).
|
|
|
|
'$flag_check_alias'(OUT, Alias) :-
|
|
stream_property(OUT,[alias(Alias)]), !.
|
|
|
|
current_prolog_flag(V,Out) :-
|
|
(var(V) ; atom(V) ), !,
|
|
'$show_yap_flag_opts'(V,NOut),
|
|
NOut = Out.
|
|
current_prolog_flag(V,Out) :-
|
|
throw(error(type_error(atom,V),current_prolog_flag(V,Out))).
|
|
|
|
set_prolog_flag(F,V) :-
|
|
var(F), !,
|
|
throw(error(instantiation_error,set_prolog_flag(F,V))).
|
|
set_prolog_flag(F,V) :-
|
|
var(V), !,
|
|
throw(error(instantiation_error,set_prolog_flag(F,V))).
|
|
set_prolog_flag(F,V) :-
|
|
\+ atom(F), !,
|
|
throw(error(type_error(atom,F),set_prolog_flag(F,V))).
|
|
set_prolog_flag(F,V) :-
|
|
yap_flag(F,V).
|
|
|
|
prolog_flag(F, Old, New) :-
|
|
var(F), !,
|
|
throw(error(instantiation_error,prolog_flag(F,Old,New))).
|
|
prolog_flag(F, Old, New) :-
|
|
current_prolog_flag(F, Old),
|
|
set_prolog_flag(F, New).
|
|
|
|
prolog_flag(F, Old) :-
|
|
current_prolog_flag(F, Old).
|
|
|
|
% if source_mode is on, then the source for the predicates
|
|
% is stored with the code
|
|
source_mode(Old,New) :-
|
|
'$access_yap_flags'(11,X),
|
|
'$transl_to_on_off'(X,Old),
|
|
'$transl_to_on_off'(XN,New),
|
|
'$set_yap_flags'(11,XN).
|
|
|
|
source :- '$set_yap_flags'(11,1).
|
|
no_source :- '$set_yap_flags'(11,0).
|
|
|