2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2002--2010 Han-Wen Nienhuys <hanwen@xs4all.nl>
6 LilyPond is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 LilyPond is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
20 #include "lily-guile.hh"
23 #include "std-string.hh"
24 #include "protected-scm.hh"
26 #ifdef MODULE_GC_KLUDGE
27 Protected_scm anonymous_modules = SCM_EOL;
28 bool perform_gc_kludge;
32 clear_anonymous_modules ()
34 #ifdef MODULE_GC_KLUDGE
35 for (SCM s = anonymous_modules;
39 SCM module = scm_car (s);
40 SCM closure = SCM_MODULE_EVAL_CLOSURE (module);
41 SCM prop = scm_procedure_property (closure, ly_symbol2scm ("module"));
43 if (ly_is_module (prop))
45 scm_set_procedure_property_x (closure, ly_symbol2scm ("module"),
50 anonymous_modules = SCM_EOL;
55 ly_make_anonymous_module (bool safe)
60 SCM maker = ly_lily_module_constant ("make-module");
62 SCM scm_module = ly_lily_module_constant ("the-scm-module");
64 mod = scm_call_0 (maker);
65 scm_module_define (mod, ly_symbol2scm ("%module-public-interface"),
68 ly_use_module (mod, scm_module);
69 ly_use_module (mod, global_lily_module);
73 SCM proc = ly_lily_module_constant ("make-safe-lilypond-module");
74 mod = scm_call_0 (proc);
77 #ifdef MODULE_GC_KLUDGE
78 if (perform_gc_kludge)
79 anonymous_modules = scm_cons (mod, anonymous_modules);
86 ly_use_module (SCM mod, SCM used)
89 = scm_list_3 (ly_symbol2scm ("module-use!"),
91 scm_list_2 (ly_symbol2scm ("module-public-interface"),
94 return scm_eval (expr, global_lily_module);
97 #define FUNC_NAME __FUNCTION__
102 ly_module_symbols (SCM mod)
104 SCM_VALIDATE_MODULE (1, mod);
106 SCM obarr = SCM_MODULE_OBARRAY (mod);
107 return ly_hash_table_keys (obarr);
111 entry_to_alist (void * /* closure */,
116 if (scm_variable_bound_p (val) == SCM_BOOL_T)
117 return scm_cons (scm_cons (key, scm_variable_ref (val)), result);
118 programming_error ("unbound variable in module");
122 LY_DEFINE (ly_module_2_alist, "ly:module->alist",
124 "Dump the contents of module @var{mod} as an alist.")
126 SCM_VALIDATE_MODULE (1, mod);
127 SCM obarr = SCM_MODULE_OBARRAY (mod);
129 return scm_internal_hash_fold ((scm_t_hash_fold_fn) &entry_to_alist,
130 NULL, SCM_EOL, obarr);
134 ly_export (SCM module, SCM namelist)
136 static SCM export_function;
137 if (!export_function)
138 export_function = scm_permanent_object (scm_c_lookup ("module-export!"));
140 scm_call_2 (SCM_VARIABLE_REF (export_function), module, namelist);
144 ly_reexport_module (SCM mod)
146 ly_export (mod, ly_module_symbols (mod));