122 lines
3.7 KiB
Prolog
122 lines
3.7 KiB
Prolog
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:- module(autoloader,[make_library_index/0]).
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:- use_module(library(lists),[append/3]).
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:- dynamic exported/3, loaded/1.
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make_library_index :-
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scan_library_exports,
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scan_swi_exports.
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scan_library_exports :-
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% init table file.
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open('INDEX.pl', write, W),
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close(W),
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scan_exports('../GPL/aggregate', library(aggregate)),
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scan_exports(apply, library(apply)),
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scan_exports(arg, library(arg)),
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scan_exports(assoc, library(assoc)),
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scan_exports(avl, library(avl)),
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scan_exports(bhash, library(bhash)),
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scan_exports(charsio, library(charsio)),
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scan_exports('../packages/chr/chr_swi', library(chr)),
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scan_exports(clp/clpfd, library(clpfd)),
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scan_exports('../packages/clpqr/clpr', library(clpr)),
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scan_exports(gensym, library(gensym)),
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scan_exports(heaps, library(heaps)),
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scan_exports('../packages/jpl/jpl', library(jpl)),
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scan_exports(lists, library(lists)),
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scan_exports(nb, library(nb)),
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scan_exports(occurs, library(occurs)),
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scan_exports('../LGPL/option', library(option)),
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scan_exports(ordsets, library(ordsets)),
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scan_exports(pairs, library(pairs)),
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scan_exports('../LGPL/prolog_xref', library(prolog_xref)),
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scan_exports('../packages/plunit/plunit', library(plunit)),
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scan_exports(queues, library(queues)),
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scan_exports(random, library(random)),
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scan_exports(rbtrees, library(rbtrees)),
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scan_exports('../LGPL/readutil', library(readutil)),
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scan_exports(regexp, library(regexp)),
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scan_exports('../LGPL/shlib', library(shlib)),
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scan_exports(system, library(system)),
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scan_exports(terms, library(terms)),
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scan_exports(timeout, library(timeout)),
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scan_exports(trees, library(trees)).
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scan_exports(Library, CallName) :-
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absolute_file_name(Library, Path,
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[ file_type(prolog),
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access(read),
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file_errors(fail)
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]),
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open(Path, read, O),
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!,
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get_exports(O, Exports, Module),
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close(O),
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open('INDEX.pl', append, W),
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publish_exports(Exports, W, CallName, Module),
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close(W).
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scan_exports(Library) :-
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format(user_error,'[ warning: library ~w not defined ]~n',[Library]).
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%
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% SWI is the only language that uses autoload.
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%
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scan_swi_exports :-
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retractall(exported(_,_,_)),
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absolute_file_name(dialect/swi, Path,
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[ file_type(prolog),
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access(read),
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file_errors(fail)
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]),
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open(Path, read, O),
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get_exports(O, Exports, Module),
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get_reexports(O, Reexports, Exports),
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close(O),
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open('dialect/swi/INDEX.pl', write, W),
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publish_exports(Reexports, W, library(dialect/swi), Module),
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close(W).
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get_exports(O, Exports, Module) :-
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read(O, (:- module(Module,Exports))), !.
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get_exports(O, Exports, Module) :-
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get_exports(O, Exports, Module).
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get_reexports(O, Exports, ExportsL) :-
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read(O, (:- reexport(_File,ExportsI))), !,
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get_reexports(O, Exports0, ExportsL),
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append(ExportsI, Exports0, Exports).
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get_reexports(_, Exports, Exports).
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publish_exports([], _, _, _).
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publish_exports([F/A|Exports], W, Path, Module) :-
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publish_export(F, A, W, Path, Module),
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publish_exports(Exports, W, Path, Module).
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publish_exports([F//A0|Exports], W, Path, Module) :-
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A is A0+2,
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publish_export(F, A, W, Path, Module),
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publish_exports(Exports, W, Path, Module).
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publish_exports([op(_,_,_)|Exports], W, Path, Module) :-
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publish_exports(Exports, W, Path, Module).
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publish_export(F, A, _, _, Module) :-
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exported(F, A, M), !,
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format(user_error,'[ warning: clash between ~a and ~a over ~a/~d ]~n',[Module,M,F,A]).
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publish_export(F, A, W, Path, Module) :-
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assert(exported(F, A, Module)), !,
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portray_clause(W, index(F, A, Module, Path)).
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find_predicate(G,ExportingModI) :-
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functor(G, Name, Arity),
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index(Name,Arity,ExportingModI,File),
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ensure_file_loaded(File).
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ensure_file_loaded(File) :-
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loaded(File), !.
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ensure_file_loaded(File) :-
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load_files(autoloader:File,[silent(true),if(not_loaded)]),
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assert(loaded(File)).
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