208 lines
8.9 KiB
Prolog
208 lines
8.9 KiB
Prolog
/**
|
|
@pred module(+M) is det
|
|
set the type-in module
|
|
|
|
|
|
Defines _M_ to be the current working or type-in module. All files
|
|
which are not bound to a module are assumed to belong to the working
|
|
module (also referred to as type-in module). To compile a non-module
|
|
file into a module which is not the working one, prefix the file name
|
|
with the module name, in the form ` _Module_: _File_`, when
|
|
loading the file.
|
|
|
|
**/
|
|
module(N) :-
|
|
var(N),
|
|
'$do_error'(instantiation_error,module(N)).
|
|
module(N) :-
|
|
atom(N), !,
|
|
% set it as current module.
|
|
'$current_module'(_,N).
|
|
module(N) :-
|
|
'$do_error'(type_error(atom,N),module(N)).
|
|
|
|
/**
|
|
\pred module(+ Module:atom, +ExportList:list) is directive
|
|
define a new module
|
|
|
|
This directive defines the file where it appears as a _module file_;
|
|
it must be the first declaration in the file. _Module_ must be an
|
|
atom specifying the module name; _ExportList_ must be a list
|
|
containing the module's public predicates specification, in the form
|
|
`[predicate_name/arity,...]`. The _ExportList_ can include
|
|
operator declarations for operators that are exported by the module.
|
|
|
|
The public predicates of a module file can be made accessible to other
|
|
files through loading the source file, using the directives
|
|
use_module/1 or use_module/2,
|
|
ensure_loaded/1 and the predicates
|
|
consult/1 or reconsult/1. The
|
|
non-public predicates of a module file are not supposed to be visible
|
|
to other modules; they can, however, be accessed by prefixing the module
|
|
name with the `:/2` operator.
|
|
|
|
**/
|
|
'$module_dec'(system(N), Ps) :- !,
|
|
new_system_module(N),
|
|
recordz('$system_initialization', prolog:'$mk_system_predicates'( Ps , N ), _),
|
|
'$current_module'(_,N).
|
|
'$module_dec'(N, Ps) :-
|
|
source_location(F,_Line),
|
|
'$nb_getval'( '$user_source_file', F0 , fail),
|
|
'$add_module_on_file'(N, F, F0, Ps),
|
|
'$current_module'(_,N).
|
|
|
|
'$mk_system_predicates'( Ps, N ) :-
|
|
lists:member(Name/A , Ps),
|
|
functor(P,Name,A),
|
|
'$mk_system_predicate'(P, N),
|
|
fail.
|
|
'$mk_system_predicates'( _Ps, _N ).
|
|
|
|
'$module'(_,N,P) :-
|
|
'$module_dec'(N,P).
|
|
|
|
'$add_module_on_file'(DonorMod, DonorF, SourceF, Exports) :-
|
|
recorded('$module','$module'(OtherF, DonorMod, _, _, _),R),
|
|
% the module has been found, are we reconsulting?
|
|
(
|
|
DonorF \= OtherF
|
|
->
|
|
'$do_error'(permission_error(module,redefined,DonorMod, OtherF, DonorF),module(DonorMod,Exports))
|
|
;
|
|
recorded('$module','$module'(DonorF,DonorMod, SourceF, _, _), R),
|
|
erase( R ),
|
|
fail
|
|
).
|
|
'$add_module_on_file'(DonorM, DonorF, SourceF, Exports) :-
|
|
'$current_module'( HostM ),
|
|
( recorded('$module','$module'( HostF, HostM, _, _, _),_) -> true ; HostF = user_input ),
|
|
% first build the initial export table
|
|
'$convert_for_export'(all, Exports, DonorM, HostM, TranslationTab, AllExports0, load_files),
|
|
sort( AllExports0, AllExports ),
|
|
( source_location(_, Line) -> true ; Line = 0 ),
|
|
'$add_to_imports'(TranslationTab, DonorM, DonorM), % insert ops, at least for now
|
|
% last, export everything to the host: if the loading crashed you didn't actually do
|
|
% no evil.
|
|
recorda('$module','$module'(DonorF,DonorM,SourceF, AllExports, Line),_),
|
|
( recorded('$source_file','$source_file'( DonorF, Time, _), R), erase(R),
|
|
recorda('$source_file','$source_file'( DonorF, Time, DonorM), _) ).
|
|
|
|
|
|
'$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 NF|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 N2), 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).
|