117 lines
4.3 KiB
Prolog
Executable File
117 lines
4.3 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: load_foreign.yap *
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* Last rev: 8/2/88 *
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* mods: *
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* comments: Utility predicates for load_foreign *
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* *
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*************************************************************************/
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load_foreign_files(_Objs,_Libs,_Entry) :-
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prolog_load_context(file, F),
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prolog_load_context(module, M),
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recorded( '$load_foreign_done', [F, M0], _), !,
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'$import_foreign'(F, M0, M).
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load_foreign_files(Objs,Libs,Entry) :-
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'$check_objs_for_load_foreign_files'(Objs,NewObjs,load_foreign_files(Objs,Libs,Entry)),
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'$check_libs_for_load_foreign_files'(Libs,NewLibs,load_foreign_files(Objs,Libs,Entry)),
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'$check_entry_for_load_foreign_files'(Entry,load_foreign_files(Objs,Libs,Entry)),
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'$load_foreign_files'(NewObjs,NewLibs,Entry),
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prolog_load_context(file, F),
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prolog_load_context(module, M),
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ignore( recordzifnot( '$load_foreign_done', [F, M], _) ), !.
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'$check_objs_for_load_foreign_files'(V,_,G) :- var(V), !,
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'$do_error'(instantiation_error,G).
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'$check_objs_for_load_foreign_files'([],[],_) :- !.
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'$check_objs_for_load_foreign_files'([Obj|Objs],[NObj|NewObjs],G) :- !,
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'$check_obj_for_load_foreign_files'(Obj,NObj,G),
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'$check_objs_for_load_foreign_files'(Objs,NewObjs,G).
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'$check_objs_for_load_foreign_files'(Objs,_,G) :-
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'$do_error'(type_error(list,Objs),G).
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'$check_obj_for_load_foreign_files'(V,_,G) :- var(V), !,
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'$do_error'(instantiation_error,G).
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'$check_obj_for_load_foreign_files'(Obj,NewObj,_) :- atom(Obj), !,
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'$process_obj_suffix'(Obj,NewObj).
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'$check_obj_for_load_foreign_files'(Obj,_,G) :-
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'$do_error'(type_error(atom,Obj),G).
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'$check_libs_for_load_foreign_files'(V,_,G) :- var(V), !,
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'$do_error'(instantiation_error,G).
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'$check_libs_for_load_foreign_files'([],[],_) :- !.
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'$check_libs_for_load_foreign_files'([Lib|Libs],[NLib|NLibs],G) :- !,
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'$check_lib_for_load_foreign_files'(Lib,NLib,G),
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'$check_libs_for_load_foreign_files'(Libs,NLibs,G).
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'$check_libs_for_load_foreign_files'(Libs,_,G) :-
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'$do_error'(type_error(list,Libs),G).
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'$check_lib_for_load_foreign_files'(V,_,G) :- var(V), !,
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'$do_error'(instantiation_error,G).
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'$check_lib_for_load_foreign_files'(Lib,NLib,_) :- atom(Lib), !,
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'$process_obj_suffix'(Lib,NewLib),
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'$checklib_prefix'(NewLib,NLib).
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'$check_lib_for_load_foreign_files'(Lib,_,G) :-
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'$do_error'(type_error(atom,Lib),G).
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'$process_obj_suffix'(Obj,Obj) :-
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'$swi_current_prolog_flag'(shared_object_extension, ObjSuffix),
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sub_atom(Obj, _, _, 0, ObjSuffix), !.
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'$process_obj_suffix'(Obj,NewObj) :-
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'$swi_current_prolog_flag'(shared_object_extension, ObjSuffix),
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atom_concat([Obj,'.',ObjSuffix],NewObj).
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'$checklib_prefix'(F,F) :- is_absolute_file_name(F), !.
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'$checklib_prefix'(F, F) :-
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sub_atom(F, 0, _, _, lib), !.
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'$checklib_prefix'(F, Lib) :-
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atom_concat(lib, F, Lib).
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'$import_foreign'(F, M0, M) :-
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M \= M0,
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predicate_property(M0:P,built_in),
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predicate_property(M0:P,file(F)),
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functor(P, N, K),
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'$do_import'(N/K-N/K, M0, M),
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fail.
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'$import_foreign'(_F, _M0, _M).
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'$check_entry_for_load_foreign_files'(V,G) :- var(V), !,
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'$do_error'(instantiation_error,G).
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'$check_entry_for_load_foreign_files'(Entry,_) :- atom(Entry), !.
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'$check_entry_for_load_foreign_files'(Entry,G) :-
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'$do_error'(type_error(atom,Entry),G).
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open_shared_object(File, Handle) :-
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'$open_shared_object'(File, 0, Handle).
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open_shared_object(File, Opts, Handle) :-
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'$open_shared_opts'(Opts, open_shared_object(File, Opts, Handle), OptsI),
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'$open_shared_object'(File, OptsI, Handle).
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'$open_shared_opts'(Opts, G, OptsI) :-
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var(Opts), !,
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'$do_error'(instantiation_error,G).
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'$open_shared_opts'([], _, 0) :- !.
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'$open_shared_opts'([Opt|Opts], G, V) :-
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'$open_shared_opts'(Opts, G, V0),
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'$open_shared_opt'(Opt, G, OptV),
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V0 is V \/ OptV.
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'$open_shared_opt'(Opt, G, _) :-
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var(Opt), !,
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'$do_error'(instantiation_error,G).
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'$open_shared_opt'(now, __, 1) :- !.
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'$open_shared_opt'(global, __, 2) :- !.
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'$open_shared_opt'(Opt, Goal, _) :-
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'$do_error'(domain_error(open_shared_object_option,Opt),Goal).
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