1072 lines
33 KiB
Prolog
Executable File
1072 lines
33 KiB
Prolog
Executable File
/*************************************************************************
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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: modules.pl *
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* Last rev: *
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* mods: *
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* comments: module support *
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* *
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*************************************************************************/
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:- system_module( '$_modules', [abolish_module/1,
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add_import_module/3,
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current_module/1,
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current_module/2,
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delete_import_module/2,
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expand_goal/2,
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export/1,
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export_list/2,
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export_resource/1,
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import_module/2,
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ls_imports/0,
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module/1,
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module_property/2,
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set_base_module/1,
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source_module/1,
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use_module/1,
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use_module/2], ['$add_to_imports'/3,
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'$clean_cuts'/2,
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'$convert_for_export'/7,
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'$do_import'/3,
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'$extend_exports'/3,
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'$get_undefined_pred'/4,
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'$imported_pred'/4,
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'$meta_expansion'/6,
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'$meta_predicate'/2,
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'$meta_predicate'/4,
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'$module'/3,
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'$module'/4,
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'$module_expansion'/5,
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'$module_transparent'/2,
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'$module_transparent'/4]).
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:- use_system_module( '$_arith', ['$c_built_in'/3]).
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:- use_system_module( '$_consult', ['$lf_opt'/3,
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'$load_files'/3]).
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:- use_system_module( '$_debug', ['$skipeol'/1]).
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:- use_system_module( '$_errors', ['$do_error'/2]).
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:- use_system_module( '$_eval', ['$full_clause_optimisation'/4]).
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:- '$purge_clauses'(module(_,_), prolog).
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:- '$purge_clauses'('$module'(_,_), prolog).
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:- '$purge_clauses'(use_module(_), prolog).
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:- '$purge_clauses'(use_module(_,_), prolog).
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%
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% start using default definition of module.
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%
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use_module(F) :-
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'$load_files'(F, [if(not_loaded),must_be_module(true)], use_module(F)).
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use_module(F,Is) :-
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'$load_files'(F, [if(not_loaded),must_be_module(true),imports(Is)], use_module(F,Is)).
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'$module'(_,N,P) :-
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'$module_dec'(N,P).
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'$module'(O,N,P,Opts) :- !,
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'$module'(O,N,P),
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'$process_module_decls_options'(Opts,module(Opts,N,P)).
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'$process_module_decls_options'(Var,Mod) :-
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var(Var), !,
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'$do_error'(instantiation_error,Mod).
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'$process_module_decls_options'([],_) :- !.
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'$process_module_decls_options'([H|L],M) :- !,
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'$process_module_decls_option'(H,M),
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'$process_module_decls_options'(L,M).
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'$process_module_decls_options'(T,M) :-
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'$do_error'(type_error(list,T),M).
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'$process_module_decls_option'(Var,M) :-
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var(Var),
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'$do_error'(instantiation_error,M).
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'$process_module_decls_option'(At,_) :-
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atom(At), !,
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'$use_module'(At).
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'$process_module_decls_option'(library(L),_) :- !,
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'$use_module'(library(L)).
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'$process_module_decls_option'(hidden(Bool),M) :- !,
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'$process_hidden_module'(Bool, M).
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'$process_module_decls_option'(Opt,M) :-
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'$do_error'(domain_error(module_decl_options,Opt),M).
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'$process_hidden_module'(TNew,M) :-
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'$convert_true_off_mod3'(TNew, New, M),
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source_mode(Old, New),
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'$prepare_restore_hidden'(Old,New).
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'$convert_true_off_mod3'(true, off, _) :- !.
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'$convert_true_off_mod3'(false, on, _) :- !.
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'$convert_true_off_mod3'(X, _, M) :-
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'$do_error'(domain_error(module_decl_options,hidden(X)),M).
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'$prepare_restore_hidden'(Old,Old) :- !.
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'$prepare_restore_hidden'(Old,New) :-
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recorda('$system_initialisation', source_mode(New,Old), _).
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module(N) :-
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var(N),
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'$do_error'(instantiation_error,module(N)).
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module(N) :-
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atom(N), !,
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% set it as current module.
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'$current_module'(_,N).
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module(N) :-
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'$do_error'(type_error(atom,N),module(N)).
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'$module_dec'(N, Ps) :-
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source_location(F, _),
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'$add_module_on_file'(N, F, Ps),
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'$current_module'(_,N).
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'$add_module_on_file'(Mod, F, Exports) :-
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recorded('$module','$module'(F0,Mod,_,_),R), !,
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'$add_preexisting_module_on_file'(F, F0, Mod, Exports, R).
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'$add_module_on_file'(Module, F, Exports) :-
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'$convert_for_export'(all, Exports, Module, Module, TranslationTab, AllExports0, load_files),
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'$add_to_imports'(TranslationTab, Module, Module), % insert ops, at least for now
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sort( AllExports0, AllExports ),
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( source_location(_, Line) -> true ; Line = 0 ),
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recorda('$module','$module'(F,Module,AllExports, Line),_).
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'$extend_exports'(F, Exps , NewF) :-
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recorded('$module','$module'(NewF,NMod, NewExports, _),_R),
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recorded('$module','$module'(F, Module,OriginalExports,Line),R),
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'$convert_for_export'(Exps, NewExports, NMod, NMod, _TranslationTab, NewExports1, load_files),
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'$add_exports'( NewExports1, OriginalExports, Exports ),
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sort( Exports, AllExports ),
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erase(R),
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recorda('$module','$module'(F,Module,AllExports,Line),_),
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fail.
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'$extend_exports'(_F, _Module, _NewExports).
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'$add_exports'( [], Exports, Exports ).
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'$add_exports'( [PI|NewExports], OriginalExports, [PI|Exports] ) :-
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% do not check for redefinitions, at least for now.
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'$add_exports'( NewExports, OriginalExports, Exports ).
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% redefining the same previously-defined file, no problem.
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'$add_preexisting_module_on_file'(F, F, Mod, Exports, R) :- !,
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erase(R),
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( recorded('$import','$import'(Mod,_,_,_,_,_),R), erase(R), fail; true),
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( source_location(_, Line) -> true ; Line = 0 ),
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recorda('$module','$module'(F,Mod,Exports, Line),_).
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'$add_preexisting_module_on_file'(F,F0,Mod,Exports,R) :-
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b_getval('$lf_status', TOpts),
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'$lf_opt'(redefine_module, TOpts, RM),
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( RM == false
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->
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'$do_error'(permission_error(module,redefined,Mod),module(Mod,Exports)), !
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;
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RM == true
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->
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'$add_preexisting_module_on_file'(F, F, Mod, Exports, R), !
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).
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'$add_preexisting_module_on_file'(F,F0,Mod,Exports,R) :-
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repeat,
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format(user_error, "The module ~a is being redefined.~n Old file: ~a~n New file: ~a~nDo you really want to redefine it? (y or n)",[Mod,F0,F]),
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'$mod_scan'(C), !,
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( C is "y" ->
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'$add_preexisting_module_on_file'(F, F, Mod, Exports, R)
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;
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'$do_error'(permission_error(module,redefined,Mod),module(Mod,Exports))
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).
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'$mod_scan'(C) :-
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stream_property(user_input,tty(true)),
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stream_property(user_error,tty(true)),
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!,
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repeat,
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get0(C),
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'$skipeol'(C),
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(C is "y" -> true ; C is "n" -> true ; C is "h" -> true ; C is "e" -> halt(1) ; format(user_error, ' Please answer with ''y'', ''n'', ''e'' or ''h'' ', []), fail), !.
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'$mod_scan'(C) :- C is "n".
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'$module_produced by'(M, M0, N, K) :-
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recorded('$import','$import'(M,M0,_,_,N,K),_), !.
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'$module_produced by'(M, M0, N, K) :-
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recorded('$import','$import'(MI,M0,G1,_,N,K),_),
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functor(G1, N1, K1),
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'$module_produced by'(M,MI,N1,K1).
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% expand module names in a clause
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% A1: Input Clause
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% A2: Output Class to Compiler (lives in module HM)
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% A3: Output Class to clause/2 and listing (lives in module HM)
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%
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% modules:
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% A4: module for body of clause (this is the one used in looking up predicates)
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% A5: context module (this is the current context
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% A6: head module (this is the one used in compiling and accessing).
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%
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%
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'$module_expansion'(H,H,H,_M,_HM) :- var(H), !.
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'$module_expansion'((H:-B),(H:-B1),(H:-BOO),M,HM) :- !,
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'$is_mt'(M, H, B, IB, MM),
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'$module_u_vars'(H,UVars,M), % collect head variables in
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% expanded positions
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'$module_expansion'(IB,B1,BO,M,MM,HM,UVars),
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('$full_clause_optimisation'(H, M, BO, BOO) ->
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true
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;
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BO = BOO
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).
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% do not expand bodyless clauses.
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'$module_expansion'(H,H,H,_,_).
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'$trace_module'(X) :-
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telling(F),
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tell('P0:debug'),
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write(X),nl,
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tell(F), fail.
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'$trace_module'(_).
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'$trace_module'(X,Y) :- X==Y, !.
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'$trace_module'(X,Y) :-
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telling(F),
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tell('~/.dbg.modules'),
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write('***************'), nl,
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portray_clause(X),
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portray_clause(Y),
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tell(F),fail.
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'$trace_module'(_,_).
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% expand module names in a body
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% args are:
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% goals to expand
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% code to pass to listing
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% code to pass to compiler
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% current module for looking up preds M
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% default module DM
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% head module HM
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%
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% to understand the differences, you can consider:
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%
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% a:(d:b(X) :- g:c(X), d(X), user:hello(X)).
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%
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% when we process meta-predicate c, HM=d, DM=a, BM=a, M=g and we should get:
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%
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% d:b(X) :- g:c(g:X), a:d(X), user:hello(X).
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%
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% on the other hand,
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%
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% a:(d:b(X) :- c(X), d(X), d:e(X)).
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%
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% will give
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%
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% d:b(X) :- a:c(a:X), a:d(X), e(X).
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%
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%
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% head variables.
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% goals or arguments/sub-arguments?
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% I cannot use call here because of format/3
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'$module_expansion'(V,NG,NG,_,MM,_,HVars) :-
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var(V), !,
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( '$not_in_vars'(V,HVars)
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->
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NG = call(MM:V)
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;
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NG = call(V)
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).
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'$module_expansion'((A,B),(A1,B1),(AO,BO),M,MM,HM,HVars) :- !,
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'$module_expansion'(A,A1,AO,M,MM,HM,HVars),
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'$module_expansion'(B,B1,BO,M,MM,HM,HVars).
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'$module_expansion'((A;B),(A1;B1),(AO;BO),M,MM,HM,HVars) :- var(A), !,
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'$module_expansion'(A,A1,AO,M,MM,HM,HVars),
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'$module_expansion'(B,B1,BO,M,MM,HM,HVars).
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'$module_expansion'((A*->B;C),(A1*->B1;C1),(yap_hacks:current_choicepoint(DCP),AO,yap_hacks:cut_at(DCP),BO; CO),M,MM,HM,HVars) :- !,
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'$module_expansion'(A,A1,AOO,M,MM,HM,HVars),
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'$clean_cuts'(AOO, AO),
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'$module_expansion'(B,B1,BO,M,MM,HM,HVars),
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'$module_expansion'(C,C1,CO,M,MM,HM,HVars).
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'$module_expansion'((A;B),(A1;B1),(AO;BO),M,MM,HM,HVars) :- !,
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'$module_expansion'(A,A1,AO,M,MM,HM,HVars),
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'$module_expansion'(B,B1,BO,M,MM,HM,HVars).
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'$module_expansion'((A|B),(A1|B1),(AO|BO),M,MM,HM,HVars) :- !,
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'$module_expansion'(A,A1,AO,M,MM,HM,HVars),
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'$module_expansion'(B,B1,BO,M,MM,HM,HVars).
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'$module_expansion'((A->B),(A1->B1),(AO->BO),M,MM,HM,HVars) :- !,
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'$module_expansion'(A,A1,AOO,M,MM,HM,HVars),
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'$clean_cuts'(AOO, AO),
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'$module_expansion'(B,B1,BO,M,MM,HM,HVars).
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'$module_expansion'(\+A,\+A1,\+AO,M,MM,HM,HVars) :- !,
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'$module_expansion'(A,A1,AO,M,MM,HM,HVars).
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'$module_expansion'(not(A),not(A1),not(AO),M,MM,HM,HVars) :- !,
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'$module_expansion'(A,A1,AO,M,MM,HM,HVars).
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'$module_expansion'(true,true,true,_,_,_,_) :- !.
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'$module_expansion'(fail,fail,fail,_,_,_,_) :- !.
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'$module_expansion'(false,false,false,_,_,_,_) :- !.
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% if I don't know what the module is, I cannot do anything to the goal,
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% so I just put a call for later on.
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'$module_expansion'(M:G,call(M:G),'$execute_wo_mod'(G,M),_,_,_,_) :- var(M), !.
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'$module_expansion'(M:G,G1,GO,_,_CM,HM,HVars) :- !,
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'$module_expansion'(G,G1,GO,M,M,HM,HVars).
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'$module_expansion'(G, G1, GO, CurMod, MM, HM,HVars) :-
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% is this imported from some other module M1?
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'$imported_pred'(G, CurMod, GG, M1),
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!,
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'$module_expansion'(GG, G1, GO, M1, MM, HM,HVars).
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'$module_expansion'(G, G1, GO, CurMod, MM, HM,HVars) :-
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'$meta_expansion'(G, CurMod, MM, HM, GI, HVars), !,
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'$complete_goal_expansion'(GI, CurMod, MM, HM, G1, GO, HVars).
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'$module_expansion'(G, G1, GO, CurMod, MM, HM, HVars) :-
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'$complete_goal_expansion'(G, CurMod, MM, HM, G1, GO, HVars).
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expand_goal(G, G) :-
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var(G), !.
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expand_goal(M:G, M:NG) :-
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'$do_expand'(G, M, NG), !.
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expand_goal(G, NG) :-
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'$current_module'(Mod),
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'$do_expand'(G, Mod, NG), !.
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expand_goal(G, G).
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'$do_expand'(G, _, G) :- var(G), !.
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'$do_expand'(M:G, _CurMod, M:GI) :- !,
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'$do_expand'(G, M, GI).
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'$do_expand'(G, CurMod, GI) :-
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(
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'$pred_exists'(goal_expansion(G,GI), CurMod),
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call(CurMod:goal_expansion(G, GI))
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->
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true
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;
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'$pred_exists'(goal_expansion(G,GI), system),
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system:goal_expansion(G, GI)
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->
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true
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;
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user:goal_expansion(G, CurMod, GI)
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->
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true
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;
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user:goal_expansion(G, GI)
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), !.
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'$do_expand'(G, CurMod, NG) :-
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'$is_metapredicate'(G,CurMod), !,
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functor(G, Name, Arity),
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prolog:'$meta_predicate'(Name,CurMod,Arity,PredDef),
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G =.. [Name|GArgs],
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PredDef =.. [Name|GDefs],
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'$expand_args'(GArgs, CurMod, GDefs, NGArgs),
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NG =.. [Name|NGArgs].
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'$expand_args'([], _, [], []).
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'$expand_args'([A|GArgs], CurMod, [0|GDefs], [NA|NGArgs]) :-
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'$do_expand'(A, CurMod, NA), !,
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'$expand_args'(GArgs, CurMod, GDefs, NGArgs).
|
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'$expand_args'([A|GArgs], CurMod, [_|GDefs], [A|NGArgs]) :-
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'$expand_args'(GArgs, CurMod, GDefs, NGArgs).
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% args are:
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% goal to expand
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% current module for looking up pred
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% current module for looking up pred
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% current module from top-level clause
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% goal to pass to listing
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% goal to pass to compiler
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% head variables.
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'$complete_goal_expansion'(G, CurMod, MM, HM, G1, GO, HVars) :-
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% '$pred_goal_expansion_on',
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'$do_expand'(G, CurMod, GI),
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GI \== G, !,
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'$module_expansion'(GI, G1, GO, CurMod, MM, HM, HVars).
|
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'$complete_goal_expansion'(G, M, _CM, HM, G1, G2, _HVars) :-
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'$all_system_predicate'(G,M,ORIG), !,
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% make built-in processing transparent.
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'$match_mod'(G, M, ORIG, HM, G1),
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'$c_built_in'(G1, M, Gi),
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Gi = G2.
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'$complete_goal_expansion'(G, GMod, _, HM, NG, NG, _) :-
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'$match_mod'(G, GMod, GMod, HM, NG).
|
|
|
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%'$match_mod'(G, GMod, GMod, NG) :- !,
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% NG = G.
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'$match_mod'(G, _, SM, _, G) :- SM == prolog, nonvar(G), \+ '$is_multifile'(G,SM), !. % prolog: needs no module info.
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% same module as head, and body goal (I cannot get rid of qualifier before
|
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% meta-call.
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'$match_mod'(G, HMod, _, HM, G) :- HMod == HM, !.
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'$match_mod'(G, GMod, _, _, GMod:G).
|
|
|
|
|
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% be careful here not to generate an undefined exception.
|
|
'$imported_pred'(G, ImportingMod, G0, ExportingMod) :-
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'$enter_undefp',
|
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'$undefined'(G, ImportingMod),
|
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'$get_undefined_pred'(G, ImportingMod, G0, ExportingMod),
|
|
ExportingMod \= ImportingMod, !,
|
|
'$exit_undefp'.
|
|
'$imported_pred'(_G, _ImportingMod, _, _) :-
|
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'$exit_undefp',
|
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fail.
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|
|
'$get_undefined_pred'(G, ImportingMod, G0, ExportingMod) :-
|
|
recorded('$import','$import'(ExportingModI,ImportingMod,G0I,G,_,_),_),
|
|
'$continue_imported'(ExportingMod, ExportingModI, G0, G0I), !.
|
|
% SWI builtin
|
|
'$get_undefined_pred'(G, _ImportingMod, G0, ExportingMod) :-
|
|
recorded('$dialect',Dialect,_),
|
|
Dialect \= yap,
|
|
functor(G, Name, Arity),
|
|
call(Dialect:index(Name,Arity,ExportingModI,_)), !,
|
|
'$continue_imported'(ExportingMod, ExportingModI, G0, G), !.
|
|
'$get_undefined_pred'(G, _ImportingMod, G0, ExportingMod) :-
|
|
yap_flag(autoload, V),
|
|
V = true,
|
|
'$autoloader_find_predicate'(G,ExportingModI), !,
|
|
'$continue_imported'(ExportingMod, ExportingModI, G0, G).
|
|
'$get_undefined_pred'(G, ImportingMod, G0, ExportingMod) :-
|
|
prolog:'$parent_module'(ImportingMod,ExportingModI),
|
|
'$continue_imported'(ExportingMod, ExportingModI, G0, G).
|
|
|
|
|
|
'$autoloader_find_predicate'(G,ExportingModI) :-
|
|
'$nb_getval'('$autoloader_set', true, fail), !,
|
|
autoloader:find_predicate(G,ExportingModI).
|
|
'$autoloader_find_predicate'(G,ExportingModI) :-
|
|
'$exit_undefp',
|
|
yap_flag(autoload, false),
|
|
load_files([library(autoloader),
|
|
autoloader:library('INDEX'),
|
|
swi:library('dialect/swi/INDEX')],
|
|
[autoload(true),if(not_loaded)]),
|
|
nb_setval('$autoloader_set', true),
|
|
yap_flag(autoload, true),
|
|
'$enter_undefp',
|
|
autoloader:find_predicate(G,ExportingModI).
|
|
|
|
|
|
'$continue_imported'(Mod,Mod,Pred,Pred) :-
|
|
\+ '$undefined'(Pred, Mod), !.
|
|
'$continue_imported'(FM,Mod,FPred,Pred) :-
|
|
recorded('$import','$import'(IM,Mod,IPred,Pred,_,_),_), !,
|
|
'$continue_imported'(FM, IM, FPred, IPred).
|
|
'$continue_imported'(FM,Mod,FPred,Pred) :-
|
|
prolog:'$parent_module'(Mod,IM),
|
|
'$continue_imported'(FM, IM, FPred, Pred).
|
|
|
|
|
|
% module_transparent declaration
|
|
%
|
|
|
|
:- dynamic('$module_transparent'/4).
|
|
|
|
'$module_transparent'((P,Ps), M) :- !,
|
|
'$module_transparent'(P, M),
|
|
'$module_transparent'(Ps, M).
|
|
'$module_transparent'(M:D, _) :- !,
|
|
'$module_transparent'(D, M).
|
|
'$module_transparent'(F/N, M) :-
|
|
'$module_transparent'(F,M,N,_), !.
|
|
'$module_transparent'(F/N, M) :-
|
|
functor(P,F,N),
|
|
asserta(prolog:'$module_transparent'(F,M,N,P)),
|
|
'$flags'(P, M, Fl, Fl),
|
|
NFlags is Fl \/ 0x200004,
|
|
'$flags'(P, M, Fl, NFlags).
|
|
|
|
'$is_mt'(M, H, B, (context_module(CM),B), CM) :-
|
|
'$module_transparent'(_, M, _, H), !.
|
|
'$is_mt'(M, _, B, B, M).
|
|
|
|
% meta_predicate declaration
|
|
% records $meta_predicate(SourceModule,Functor,Arity,Declaration)
|
|
|
|
% directive now meta_predicate Ps :- $meta_predicate(Ps).
|
|
|
|
:- dynamic('$meta_predicate'/4).
|
|
|
|
:- multifile '$meta_predicate'/4.
|
|
|
|
'$meta_predicate'(P, M) :-
|
|
var(P),
|
|
'$do_error'(instantiation_error,module(M)).
|
|
'$meta_predicate'((P,Ps), M) :- !,
|
|
'$meta_predicate'(P, M),
|
|
'$meta_predicate'(Ps, M).
|
|
'$meta_predicate'(M:D, _) :- !,
|
|
'$meta_predicate'(D, M).
|
|
'$meta_predicate'(P, M1) :-
|
|
'$install_meta_predicate'(P, M1).
|
|
|
|
|
|
'$install_meta_predicate'(P, M1) :-
|
|
functor(P,F,N),
|
|
( M1 = prolog -> M = _ ; M1 = M),
|
|
( retractall(prolog:'$meta_predicate'(F,M,N,_)), fail ; true),
|
|
asserta(prolog:'$meta_predicate'(F,M,N,P)),
|
|
'$flags'(P, M1, Fl, Fl),
|
|
NFlags is Fl \/ 0x200000,
|
|
'$flags'(P, M1, Fl, NFlags).
|
|
|
|
% return list of vars in expanded positions on the head of a clause.
|
|
%
|
|
% these variables should not be expanded by meta-calls in the body of the goal.
|
|
%
|
|
'$module_u_vars'(H,UVars,M) :-
|
|
functor(H,F,N),
|
|
'$meta_predicate'(F,M,N,D), !,
|
|
'$module_u_vars'(N,D,H,UVars).
|
|
'$module_u_vars'(_,[],_).
|
|
|
|
'$module_u_vars'(0,_,_,[]) :- !.
|
|
'$module_u_vars'(I,D,H,LF) :-
|
|
arg(I,D,X), ( X=':' ; integer(X)),
|
|
arg(I,H,A), '$uvar'(A, LF, L), !,
|
|
I1 is I-1,
|
|
'$module_u_vars'(I1,D,H,L).
|
|
'$module_u_vars'(I,D,H,L) :-
|
|
I1 is I-1,
|
|
'$module_u_vars'(I1,D,H,L).
|
|
|
|
'$uvar'(Y, [Y|L], L) :- var(Y), !.
|
|
% support all/3
|
|
'$uvar'(same( G, _), LF, L) :-
|
|
'$uvar'(G, LF, L).
|
|
'$uvar'('^'( _, G), LF, L) :-
|
|
'$uvar'(G, LF, L).
|
|
|
|
% expand arguments of a meta-predicate
|
|
% $meta_expansion(ModuleWhereDefined,CurrentModule,Goal,ExpandedGoal,MetaVariables)
|
|
|
|
'$meta_expansion0'(G,_Mod,MP,_HM, G1,_HVars) :-
|
|
var(G), !,
|
|
G1 = call(MP:G).
|
|
'$meta_expansion0'(M:G,_Mod,_MP,_HM,G1,_HVars) :-
|
|
var(M), !,
|
|
G1 = '$execute_wo_mod'(G,M).
|
|
% support for all/3
|
|
'$meta_expansion0'(same(G, P),Mod,MP,HM, same(G1, P),HVars) :- !,
|
|
'$meta_expansion0'(G,Mod,MP,HM,G1,HVars).
|
|
'$meta_expansion0'(G,Mod,MP,HM,M2:G2,HVars) :-
|
|
nonvar(G), G \= _:_,
|
|
'$module_expansion'(G,_,G1,MP,MP,HM,HVars), !,
|
|
strip_module(MP:G1, M2, G2).
|
|
'$meta_expansion0'(G,Mod,MP,HM,M1:G1,HVars) :-
|
|
strip_module(MP:G,M1,G1).
|
|
|
|
|
|
'$meta_expansion'(G,Mod,MP,HM,G1,HVars) :-
|
|
functor(G,F,N),
|
|
'$meta_predicate'(F,Mod,N,D), !, % we're in an argument
|
|
% format(user_error,'[ ~w ',[G]),
|
|
functor(G1,F,N),
|
|
'$meta_expansion_loop'(N, D, G, G1, HVars, Mod, MP, HM).
|
|
% format(user_error,' gives ~w]`n',[G1]).
|
|
|
|
% expand argument
|
|
'$meta_expansion_loop'(0,_,_,_,_,_,_,_) :- !.
|
|
'$meta_expansion_loop'(I,D,G,NG,HVars,CurMod,M,HM) :-
|
|
arg(I,D,X), (X==':' -> true ; integer(X)),
|
|
arg(I,G,A),
|
|
'$should_expand'(A,HVars),
|
|
!,
|
|
( X ==0 ->
|
|
'$values'('$c_arith',Old, false),
|
|
'$meta_expansion0'(A,CurMod,M,HM,NA,HVars),
|
|
'$values'('$c_arith', _False, Old)
|
|
;
|
|
NA = M:A
|
|
),
|
|
arg(I,NG,NA),
|
|
I1 is I-1,
|
|
'$meta_expansion_loop'(I1, D, G, NG, HVars, CurMod, M, HM).
|
|
'$meta_expansion_loop'(I, D, G, NG, HVars, CurMod, M, HM) :-
|
|
arg(I,G,A),
|
|
arg(I,NG,A),
|
|
I1 is I-1,
|
|
'$meta_expansion_loop'(I1, D, G, NG, HVars, CurMod, M, HM).
|
|
|
|
% check if an argument should be expanded
|
|
'$should_expand'(V,HVars) :- var(V), !, '$not_in_vars'(V,HVars).
|
|
'$should_expand'(_:_,_) :- !, fail.
|
|
'$should_expand'(_,_).
|
|
|
|
'$not_in_vars'(_,[]).
|
|
'$not_in_vars'(V,[X|L]) :- X\==V, '$not_in_vars'(V,L).
|
|
|
|
current_module(Mod) :-
|
|
'$all_current_modules'(Mod),
|
|
\+ '$system_module'(Mod).
|
|
|
|
current_module(Mod,TFN) :-
|
|
'$all_current_modules'(Mod),
|
|
( recorded('$module','$module'(TFN,Mod,_Publics, _),_) -> true ; TFN = user ).
|
|
|
|
source_module(Mod) :-
|
|
'$current_module'(Mod).
|
|
|
|
% comma has its own problems.
|
|
:- '$install_meta_predicate'((0,0), prolog).
|
|
|
|
:- meta_predicate
|
|
abolish(:),
|
|
abolish(:,+),
|
|
all(?,0,-),
|
|
assert(:),
|
|
assert(:,+),
|
|
assert_static(:),
|
|
asserta(:),
|
|
asserta(:,+),
|
|
asserta_static(:),
|
|
assertz(:),
|
|
assertz(:,+),
|
|
assertz_static(:),
|
|
at_halt(0),
|
|
bagof(?,0,-),
|
|
bb_get(:,-),
|
|
bb_put(:,+),
|
|
bb_delete(:,?),
|
|
bb_update(:,?,?),
|
|
call(0),
|
|
call(1,?),
|
|
call(2,?,?),
|
|
call(3,?,?,?),
|
|
call_with_args(0),
|
|
call_with_args(1,?),
|
|
call_with_args(2,?,?),
|
|
call_with_args(3,?,?,?),
|
|
call_with_args(4,?,?,?,?),
|
|
call_with_args(5,?,?,?,?,?),
|
|
call_with_args(6,?,?,?,?,?,?),
|
|
call_with_args(7,?,?,?,?,?,?,?),
|
|
call_with_args(8,?,?,?,?,?,?,?,?),
|
|
call_with_args(9,?,?,?,?,?,?,?,?,?),
|
|
call_cleanup(0,0),
|
|
call_cleanup(0,?,0),
|
|
call_residue(0,?),
|
|
call_residue_vars(0,?),
|
|
call_shared_object_function(:,+),
|
|
catch(0,?,0),
|
|
clause(:,?),
|
|
clause(:,?,?),
|
|
compile(:),
|
|
consult(:),
|
|
current_predicate(:),
|
|
current_predicate(?,:),
|
|
db_files(:),
|
|
depth_bound_call(0,+),
|
|
discontiguous(:),
|
|
ensure_loaded(:),
|
|
exo_files(:),
|
|
findall(?,0,-),
|
|
findall(?,0,-,?),
|
|
forall(0,0),
|
|
format(+,:),
|
|
format(+,+,:),
|
|
freeze(?,0),
|
|
hide_predicate(:),
|
|
if(0,0,0),
|
|
ignore(0),
|
|
incore(0),
|
|
listing(:),
|
|
multifile(:),
|
|
nospy(:),
|
|
not(0),
|
|
notrace(0),
|
|
once(0),
|
|
phrase(2,?),
|
|
phrase(2,?,+),
|
|
predicate_property(:,?),
|
|
predicate_statistics(:,-,-,-),
|
|
on_exception(+,0,0),
|
|
qsave_program(+,:),
|
|
reconsult(:),
|
|
retract(:),
|
|
retract(:,?),
|
|
retractall(:),
|
|
reconsult(:),
|
|
setof(?,0,-),
|
|
setup_call_cleanup(0,0,0),
|
|
setup_call_catcher_cleanup(0,0,?,0),
|
|
spy(:),
|
|
stash_predicate(:),
|
|
unknown(+,:),
|
|
use_module(:),
|
|
use_module(:,?),
|
|
use_module(?,:,?),
|
|
when(+,0),
|
|
with_mutex(+,0),
|
|
with_output_to(?,0),
|
|
(0 -> 0),
|
|
(0 *-> 0),
|
|
(0 ; 0),
|
|
^(+,0),
|
|
{}(0,?,?),
|
|
','(2,2,?,?),
|
|
;(2,2,?,?),
|
|
'|'(2,2,?,?),
|
|
->(2,2,?,?),
|
|
\+(2,?,?),
|
|
\+ 0 .
|
|
|
|
%
|
|
% get rid of a module and of all predicates included in the module.
|
|
%
|
|
abolish_module(Mod) :-
|
|
recorded('$module','$module'(_,Mod,_,_),R), erase(R),
|
|
fail.
|
|
abolish_module(Mod) :-
|
|
recorded('$import','$import'(Mod,_,_,_,_,_),R), erase(R),
|
|
fail.
|
|
abolish_module(Mod) :-
|
|
'$current_predicate'(Mod,Na,Ar),
|
|
abolish(Mod:Na/Ar),
|
|
fail.
|
|
abolish_module(_).
|
|
|
|
export(Resource) :-
|
|
var(Resource),
|
|
'$do_error'(instantiation_error,export(Resource)).
|
|
export([]) :- !.
|
|
export([Resource| Resources]) :- !,
|
|
export_resource(Resource),
|
|
export(Resources).
|
|
export(Resource) :-
|
|
export_resource(Resource).
|
|
|
|
export_resource(Resource) :-
|
|
var(Resource),
|
|
'$do_error'(instantiation_error,export(Resource)).
|
|
export_resource(P) :-
|
|
P = F/N, atom(F), number(N), N >= 0, !,
|
|
'$current_module'(Mod),
|
|
( recorded('$module','$module'(File,Mod,ExportedPreds,Line),R) ->
|
|
erase(R),
|
|
recorda('$module','$module'(File,Mod,[P|ExportedPreds],Line),_)
|
|
; prolog_load_context(file, File) ->
|
|
recorda('$module','$module'(File,Mod,[P],Line),_)
|
|
; recorda('$module','$module'(user_input,Mod,[P],1),_)
|
|
).
|
|
export_resource(P0) :-
|
|
P0 = F//N, atom(F), number(N), N >= 0, !,
|
|
N1 is N+2, P = F/N1,
|
|
'$current_module'(Mod),
|
|
( recorded('$module','$module'(File,Mod,ExportedPreds,Line),R) ->
|
|
erase(R),
|
|
recorda('$module','$module'(File,Mod,[P|ExportedPreds],Line ),_)
|
|
; prolog_load_context(file, File) ->
|
|
recorda('$module','$module'(File,Mod,[P],Line),_)
|
|
; recorda('$module','$module'(user_input,Mod,[P],1),_)
|
|
).
|
|
export_resource(op(Prio,Assoc,Name)) :- !,
|
|
op(Prio,Assoc,prolog:Name).
|
|
export_resource(Resource) :-
|
|
'$do_error'(type_error(predicate_indicator,Resource),export(Resource)).
|
|
|
|
export_list(Module, List) :-
|
|
recorded('$module','$module'(_,Module,List,_),_).
|
|
|
|
'$convert_for_export'(all, Exports, _Module, _ContextModule, Tab, MyExports, _) :-
|
|
'$simple_conversion'(Exports, Tab, MyExports).
|
|
'$convert_for_export'([], Exports, Module, ContextModule, Tab, MyExports, Goal) :-
|
|
'$clean_conversion'([], Exports, Module, ContextModule, Tab, MyExports, Goal).
|
|
'$convert_for_export'([P1|Ps], Exports, Module, ContextModule, Tab, MyExports, Goal) :-
|
|
'$clean_conversion'([P1|Ps], Exports, Module, ContextModule, Tab, MyExports, Goal).
|
|
'$convert_for_export'(except(Excepts), Exports, Module, ContextModule, Tab, MyExports, Goal) :-
|
|
'$neg_conversion'(Excepts, Exports, Module, ContextModule, MyExports, Goal),
|
|
'$simple_conversion'(MyExports, Tab, _).
|
|
|
|
'$simple_conversion'([], [], []).
|
|
'$simple_conversion'([F/N|Exports], [F/N-F/N|Tab], [F/N|E]) :-
|
|
'$simple_conversion'(Exports, Tab, E).
|
|
'$simple_conversion'([F//N|Exports], [F/N2-F/N2|Tab], [F/N2|E]) :-
|
|
N2 is N+1,
|
|
'$simple_conversion'(Exports, Tab, E).
|
|
'$simple_conversion'([F/N as NF|Exports], [F/N-NF/N|Tab], [NF/N|E]) :-
|
|
'$simple_conversion'(Exports, Tab, E).
|
|
'$simple_conversion'([F//N as BF|Exports], [F/N2-NF/N2|Tab], [NF/N2|E]) :-
|
|
N2 is N+1,
|
|
'$simple_conversion'(Exports, Tab, E).
|
|
'$simple_conversion'([op(Prio,Assoc,Name)|Exports], [op(Prio,Assoc,Name)|Tab], [op(Prio,Assoc,Name)|E]) :-
|
|
'$simple_conversion'(Exports, Tab, E).
|
|
|
|
'$clean_conversion'([], _, _, _, [], [], _).
|
|
'$clean_conversion'([(N1/A1 as N2)|Ps], List, Module, ContextModule, [N1/A1-N2/A1|Tab], [N2/A1|MyExports], Goal) :- !,
|
|
( lists:memberchk(N1/A1, List)
|
|
->
|
|
true
|
|
;
|
|
'$bad_export'((N1/A1 as A2), Module, ContextModule)
|
|
),
|
|
'$clean_conversion'(Ps, List, Module, ContextModule, Tab, MyExports, Goal).
|
|
'$clean_conversion'([N1/A1|Ps], List, Module, ContextModule, [N1/A1-N1/A1|Tab], [N1/A1|MyExports], Goal) :- !,
|
|
(
|
|
lists:memberchk(N1/A1, List)
|
|
->
|
|
true
|
|
;
|
|
'$bad_export'(N1/A1, Module, ContextModule)
|
|
),
|
|
'$clean_conversion'(Ps, List, Module, ContextModule, Tab, MyExports, Goal).
|
|
'$clean_conversion'([N1//A1|Ps], List, Module, ContextModule, [N1/A2-N1/A2|Tab], [N1/A2|MyExports], Goal) :- !,
|
|
A2 is A1+2,
|
|
(
|
|
lists:memberchk(N1/A2, List)
|
|
->
|
|
true
|
|
;
|
|
'$bad_export'(N1//A1, Module, ContextModule)
|
|
|
|
),
|
|
'$clean_conversion'(Ps, List, Module, ContextModule, Tab, MyExports, Goal).
|
|
'$clean_conversion'([N1//A1 as N2|Ps], List, Module, ContextModule, [N2/A2-N1/A2|Tab], [N2/A2|MyExports], Goal) :- !,
|
|
A2 is A1+2,
|
|
(
|
|
lists:memberchk(N2/A2, List)
|
|
->
|
|
true
|
|
;
|
|
'$bad_export'((N1//A1 as A2), Module, ContextModule)
|
|
),
|
|
'$clean_conversion'(Ps, List, Module, ContextModule, Tab, MyExports, Goal).
|
|
'$clean_conversion'([op(Prio,Assoc,Name)|Ps], List, Module, ContextModule, [op(Prio,Assoc,Name)|Tab], [op(Prio,Assoc,Name)|MyExports], Goal) :- !,
|
|
(
|
|
lists:memberchk(op(Prio,Assoc,Name), List)
|
|
->
|
|
true
|
|
;
|
|
'$bad_export'(op(Prio,Assoc,Name), Module, ContextModule)
|
|
),
|
|
'$clean_conversion'(Ps, List, Module, ContextModule, Tab, MyExports, Goal).
|
|
'$clean_conversion'([P|_], _List, _, _, _, _, Goal) :-
|
|
'$do_error'(domain_error(module_export_predicates,P), Goal).
|
|
|
|
'$bad_export'(_, _Module, _ContextModule) :- !.
|
|
'$bad_export'(Name/Arity, Module, ContextModule) :-
|
|
functor(P, Name, Arity),
|
|
predicate_property(Module:P, _), !,
|
|
print_message(warning, declaration(Name/Arity, Module, ContextModule, private)).
|
|
'$bad_export'(Name//Arity, Module, ContextModule) :-
|
|
Arity2 is Arity+2,
|
|
functor(P, Name, Arity2),
|
|
predicate_property(Module:P, _), !,
|
|
print_message(warning, declaration(Name/Arity, Module, ContextModule, private)).
|
|
'$bad_export'(Indicator, Module, ContextModule) :- !,
|
|
print_message(warning, declaration( Indicator, Module, ContextModule, undefined)).
|
|
|
|
'$neg_conversion'([], Exports, _, _, Exports, _).
|
|
'$neg_conversion'([N1/A1|Ps], List, Module, ContextModule, MyExports, Goal) :- !,
|
|
(
|
|
lists:delete(List, N1/A1, RList)
|
|
->
|
|
'$neg_conversion'(Ps, RList, Module, ContextModule, MyExports, Goal)
|
|
;
|
|
'$bad_export'(N1/A1, Module, ContextModule)
|
|
).
|
|
'$neg_conversion'([N1//A1|Ps], List, Module, ContextModule, MyExports, Goal) :- !,
|
|
A2 is A1+2,
|
|
(
|
|
lists:delete(List, N1/A2, RList)
|
|
->
|
|
'$neg_conversion'(Ps, RList, Module, ContextModule, MyExports, Goal)
|
|
;
|
|
'$bad_export'(N1//A1, Module, ContextModule)
|
|
).
|
|
'$neg_conversion'([op(Prio,Assoc,Name)|Ps], List, Module, ContextModule, MyExports, Goal) :- !,
|
|
(
|
|
lists:delete(List, op(Prio,Assoc,Name), RList)
|
|
->
|
|
'$neg_conversion'(Ps, RList, Module, ContextModule, MyExports, Goal)
|
|
;
|
|
'$bad_export'(op(Prio,Assoc,Name), Module, ContextModule)
|
|
).
|
|
'$clean_conversion'([P|_], _List, _, _, _, Goal) :-
|
|
'$do_error'(domain_error(module_export_predicates,P), Goal).
|
|
|
|
|
|
'$add_to_imports'([], _, _).
|
|
% no need to import from the actual module
|
|
'$add_to_imports'([T|Tab], Module, ContextModule) :-
|
|
'$do_import'(T, Module, ContextModule),
|
|
'$add_to_imports'(Tab, Module, ContextModule).
|
|
|
|
'$do_import'(op(Prio,Assoc,Name), _Mod, ContextMod) :-
|
|
op(Prio,Assoc,ContextMod:Name).
|
|
'$do_import'(N0/K0-N0/K0, Mod, Mod) :- !.
|
|
'$do_import'(_N/K-N1/K, _Mod, ContextMod) :-
|
|
recorded('$module','$module'(_F, ContextMod, MyExports,_),_),
|
|
once(lists:member(N1/K, MyExports)),
|
|
functor(S, N1, K),
|
|
% reexport predicates if they are undefined in the current module.
|
|
\+ '$undefined'(S,ContextMod), !.
|
|
'$do_import'( N/K-N1/K, Mod, ContextMod) :-
|
|
functor(G,N,K),
|
|
'$follow_import_chain'(Mod,G,M0,G0),
|
|
G0=..[N0|Args],
|
|
G1=..[N1|Args],
|
|
( '$check_import'(M0,ContextMod,N1,K) ->
|
|
( ContextMod = user ->
|
|
( recordzifnot('$import','$import'(M0,user,G0,G1,N1,K),_) -> true ; true)
|
|
;
|
|
( recordaifnot('$import','$import'(M0,ContextMod,G0,G1,N1,K),_) -> true ; true )
|
|
)
|
|
;
|
|
true
|
|
).
|
|
|
|
'$follow_import_chain'(M,G,M0,G0) :-
|
|
recorded('$import','$import'(M1,M,G1,G,_,_),_), M \= M1, !,
|
|
'$follow_import_chain'(M1,G1,M0,G0).
|
|
'$follow_import_chain'(M,G,M,G).
|
|
|
|
% trying to import Mod:N/K into ContextM
|
|
'$check_import'(Mod, ContextM, N, K) :-
|
|
recorded('$import','$import'(MI, ContextM, _, _, N,K),_R),
|
|
% dereference MI to M1, in order to find who
|
|
% is actually generating
|
|
( '$module_produced by'(M1, MI, N, K) -> true ; MI = M1 ),
|
|
( '$module_produced by'(M2, Mod, N, K) -> true ; M = M2 ),
|
|
M2 \= M1, !,
|
|
b_getval('$lf_status', TOpts),
|
|
'$lf_opt'(redefine_module, TOpts, Action),
|
|
'$redefine_action'(Action, M1, M2, M, N/K).
|
|
'$check_import'(_,_,_,_).
|
|
|
|
'$redefine_action'(ask, M1, M2, M, N/K) :-
|
|
stream_property(user_input,tty(true)), !,
|
|
format(user_error,'NAME CLASH: ~w was already imported to module ~w;~n',[M1:N/K,M2]),
|
|
format(user_error,' Do you want to import it from ~w ? [y, n, e or h] ',M),
|
|
'$mod_scan'(C),
|
|
( C =:= 0'e -> halt(1) ;
|
|
C =:= 0'y ).
|
|
'$redefine_action'(true, M1, _, _, _) :- !,
|
|
recorded('$module','$module'(F, M1, _MyExports,_Line),_),
|
|
unload_file(F).
|
|
'$redefine_action'(false, M1,M2, M, N/K) :-
|
|
'$do_error'(permission_error(import,M1:N/K,redefined,M2),module(M)).
|
|
|
|
% I assume the clause has been processed, so the
|
|
% var case is long gone! Yes :)
|
|
'$clean_cuts'(G,(yap_hacks:current_choicepoint(DCP),NG)) :-
|
|
'$conj_has_cuts'(G,DCP,NG,OK), OK == ok, !.
|
|
'$clean_cuts'(G,G).
|
|
|
|
'$conj_has_cuts'(V,_,V, _) :- var(V), !.
|
|
'$conj_has_cuts'(!,DCP,'$$cut_by'(DCP), ok) :- !.
|
|
'$conj_has_cuts'((G1,G2),DCP,(NG1,NG2), OK) :- !,
|
|
'$conj_has_cuts'(G1, DCP, NG1, OK),
|
|
'$conj_has_cuts'(G2, DCP, NG2, OK).
|
|
'$conj_has_cuts'((G1;G2),DCP,(NG1;NG2), OK) :- !,
|
|
'$conj_has_cuts'(G1, DCP, NG1, OK),
|
|
'$conj_has_cuts'(G2, DCP, NG2, OK).
|
|
'$conj_has_cuts'((G1->G2),DCP,(G1;NG2), OK) :- !,
|
|
% G1: the system must have done it already
|
|
'$conj_has_cuts'(G2, DCP, NG2, OK).
|
|
'$conj_has_cuts'((G1*->G2),DCP,(G1;NG2), OK) :- !,
|
|
% G1: the system must have done it already
|
|
'$conj_has_cuts'(G2, DCP, NG2, OK).
|
|
'$conj_has_cuts'(if(G1,G2,G3),DCP,if(G1,NG2,NG3), OK) :- !,
|
|
% G1: the system must have done it already
|
|
'$conj_has_cuts'(G2, DCP, NG2, OK),
|
|
'$conj_has_cuts'(G3, DCP, NG3, OK).
|
|
'$conj_has_cuts'(G,_,G, _).
|
|
|
|
set_base_module(ExportingModule) :-
|
|
var(ExportingModule),
|
|
'$do_error'(instantiation_error,set_base_module(ExportingModule)).
|
|
set_base_module(ExportingModule) :-
|
|
atom(ExportingModule), !,
|
|
'$current_module'(Mod),
|
|
retractall(prolg:'$parent_module'(Mod,_)),
|
|
asserta(prolog:'$parent_module'(Mod,ExportingModule)).
|
|
set_base_module(ExportingModule) :-
|
|
'$do_error'(type_error(atom,ExportingModule),set_base_module(ExportingModule)).
|
|
|
|
import_module(Mod, ImportModule) :-
|
|
var(Mod),
|
|
'$do_error'(instantiation_error,import_module(Mod, ImportModule)).
|
|
import_module(Mod, ImportModule) :-
|
|
atom(Mod), !,
|
|
prolog:'$parent_module'(Mod,ImportModule).
|
|
import_module(Mod, EM) :-
|
|
'$do_error'(type_error(atom,Mod),import_module(Mod, EM)).
|
|
|
|
add_import_module(Mod, ImportModule, Pos) :-
|
|
var(Mod),
|
|
'$do_error'(instantiation_error,add_import_module(Mod, ImportModule, Pos)).
|
|
add_import_module(Mod, ImportModule, Pos) :-
|
|
var(Pos),
|
|
'$do_error'(instantiation_error,add_import_module(Mod, ImportModule, Pos)).
|
|
add_import_module(Mod, ImportModule, start) :-
|
|
atom(Mod), !,
|
|
retractall(prolog:'$parent_module'(Mod,ImportModule)),
|
|
asserta(prolog:'$parent_module'(Mod,ImportModule)).
|
|
add_import_module(Mod, ImportModule, end) :-
|
|
atom(Mod), !,
|
|
retractall(prolog:'$parent_module'(Mod,ImportModule)),
|
|
assertz(prolog:'$parent_module'(Mod,ImportModule)).
|
|
add_import_module(Mod, ImportModule, Pos) :-
|
|
\+ atom(Mod), !,
|
|
'$do_error'(type_error(atom,Mod),add_import_module(Mod, ImportModule, Pos)).
|
|
add_import_module(Mod, ImportModule, Pos) :-
|
|
'$do_error'(domain_error(start_end,Pos),add_import_module(Mod, ImportModule, Pos)).
|
|
|
|
delete_import_module(Mod, ImportModule) :-
|
|
var(Mod),
|
|
'$do_error'(instantiation_error,delete_import_module(Mod, ImportModule)).
|
|
delete_import_module(Mod, ImportModule) :-
|
|
var(ImportModule),
|
|
'$do_error'(instantiation_error,delete_import_module(Mod, ImportModule)).
|
|
delete_import_module(Mod, ImportModule) :-
|
|
atom(Mod),
|
|
atom(ImportModule), !,
|
|
retractall(prolog:'$parent_module'(Mod,ImportModule)).
|
|
delete_import_module(Mod, ImportModule) :-
|
|
\+ atom(Mod), !,
|
|
'$do_error'(type_error(atom,Mod),delete_import_module(Mod, ImportModule)).
|
|
delete_import_module(Mod, ImportModule) :-
|
|
'$do_error'(type_error(atom,ImportModule),delete_import_module(Mod, ImportModule)).
|
|
|
|
'$set_source_module'(Source0, SourceF) :-
|
|
prolog_load_context(module, Source0), !,
|
|
module(SourceF).
|
|
'$set_source_module'(Source0, SourceF) :-
|
|
current_module(Source0, SourceF).
|
|
|
|
/** '$declare_module'(+Module, +Super, +File, +Line, +Redefine) is det.
|
|
|
|
Start a new (source-)module
|
|
|
|
@param Module is the name of the module to declare
|
|
@param File is the canonical name of the file from which the module
|
|
is loaded
|
|
@param Line is the line-number of the :- module/2 directive.
|
|
@param Redefine If =true=, allow associating the module to a new file
|
|
*/
|
|
'$declare_module'(Name, _Test, Context, _File, _Line) :-
|
|
add_import_module(Name, Context, start).
|
|
|
|
module_property(Mod, line_count(L)) :-
|
|
recorded('$module','$module'(_F,Mod,_,L),_).
|
|
module_property(Mod, file(F)) :-
|
|
recorded('$module','$module'(F,Mod,_,_),_).
|
|
module_property(Mod, exports(Es)) :-
|
|
recorded('$module','$module'(_,Mod,Es,_),_).
|
|
|
|
ls_imports :-
|
|
recorded('$import','$import'(M0,M,G0,G,_N,_K),_R),
|
|
numbervars(G0+G, 0, _),
|
|
format('~a:~w <- ~a:~w~n', [M, G, M0, G0]),
|
|
fail.
|
|
ls_imports.
|
|
|
|
|