X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fly-module.cc;h=2b91e8583ec8b81633a2814c8ebd7a1c5b918ba4;hb=47db9a3883d726ca53e2133a3b2298f78dd6a32e;hp=ceb26ad85d91ae9835a103e45dd399b5fc44cd16;hpb=38d7d319eabc906e82fb42002678c6d42a23b6f7;p=lilypond.git diff --git a/lily/ly-module.cc b/lily/ly-module.cc index ceb26ad85d..2b91e8583e 100644 --- a/lily/ly-module.cc +++ b/lily/ly-module.cc @@ -1,9 +1,20 @@ /* - ly-module.cc -- implement guile module stuff. + This file is part of LilyPond, the GNU music typesetter. - source file of the GNU LilyPond music typesetter + Copyright (C) 2002--2015 Han-Wen Nienhuys - (c) 2002--2009 Han-Wen Nienhuys + LilyPond is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + LilyPond is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with LilyPond. If not, see . */ #include "lily-guile.hh" @@ -12,81 +23,68 @@ #include "std-string.hh" #include "protected-scm.hh" -#ifdef MODULE_GC_KLUDGE -Protected_scm anonymous_modules = SCM_EOL; -bool perform_gc_kludge; -#endif - -void -clear_anonymous_modules () -{ -#ifdef MODULE_GC_KLUDGE - for (SCM s = anonymous_modules; - scm_is_pair (s); - s = scm_cdr (s)) - { - SCM module = scm_car (s); - SCM closure = SCM_MODULE_EVAL_CLOSURE (module); - SCM prop = scm_procedure_property (closure, ly_symbol2scm ("module")); - - if (ly_is_module (prop)) - { - scm_set_procedure_property_x (closure, ly_symbol2scm ("module"), - SCM_BOOL_F); - } - } - - anonymous_modules = SCM_EOL; -#endif -} - SCM -ly_make_anonymous_module (bool safe) +ly_make_module (bool safe) { SCM mod = SCM_EOL; if (!safe) { - SCM maker = ly_lily_module_constant ("make-module"); - - SCM scm_module = ly_lily_module_constant ("the-scm-module"); + /* Look up (evaluate) Scheme make-module function and call it */ + SCM maker = ly_lily_module_constant ("make-module"); mod = scm_call_0 (maker); - scm_module_define (mod, ly_symbol2scm ("%module-public-interface"), - mod); - + /* + Look up and call Guile module-export-all! or, when using + Guile V1.8, the compatible shim defined in lily.scm. + */ + SCM module_export_all_x = ly_lily_module_constant ("module-export-all!"); + scm_call_1 (module_export_all_x, mod); + + /* + Evaluate Guile module "the-root-module", + and ensure we inherit definitions from it and the "lily" module + N.B. this used to be "the-scm-module" and is deprecated in + Guile V1.9/2.0 + */ + SCM scm_module = ly_lily_module_constant ("the-root-module"); ly_use_module (mod, scm_module); ly_use_module (mod, global_lily_module); } else { + /* Evaluate and call make-safe-lilypond-module */ SCM proc = ly_lily_module_constant ("make-safe-lilypond-module"); mod = scm_call_0 (proc); } -#ifdef MODULE_GC_KLUDGE - if (perform_gc_kludge) - anonymous_modules = scm_cons (mod, anonymous_modules); -#endif - return mod; } SCM ly_use_module (SCM mod, SCM used) { - SCM expr - = scm_list_3 (ly_symbol2scm ("module-use!"), - mod, - scm_list_2 (ly_symbol2scm ("module-public-interface"), - used)); - + /* + Pick up the module's interface definition. + TODO - Replace inline evaluations (interpreted) + with guile API calls if these become available. + */ + SCM scm_module_use = ly_symbol2scm ("module-use!"); + SCM scm_module_public_interface = ly_symbol2scm ("module-public-interface"); + SCM iface = scm_list_2 (scm_module_public_interface, used); + /* + Set up to interpret + '(module_use! (module-public-interface ))' + */ + SCM expr = scm_list_3 (scm_module_use, mod, iface); + /* + Now return SCM value, this is the result of interpreting + '(eval (module-use! (module-public-interface )) "lily")' + */ return scm_eval (expr, global_lily_module); } #define FUNC_NAME __FUNCTION__ - - SCM ly_module_symbols (SCM mod) { @@ -98,9 +96,9 @@ ly_module_symbols (SCM mod) static SCM entry_to_alist (void * /* closure */, - SCM key, - SCM val, - SCM result) + SCM key, + SCM val, + SCM result) { if (scm_variable_bound_p (val) == SCM_BOOL_T) return scm_cons (scm_cons (key, scm_variable_ref (val)), result); @@ -109,13 +107,14 @@ entry_to_alist (void * /* closure */, } LY_DEFINE (ly_module_2_alist, "ly:module->alist", - 1, 0, 0, (SCM mod), - "Dump the contents of module @var{mod} as an alist.") + 1, 0, 0, (SCM mod), + "Dump the contents of module @var{mod} as an alist.") { SCM_VALIDATE_MODULE (1, mod); SCM obarr = SCM_MODULE_OBARRAY (mod); - return scm_internal_hash_fold ((Hash_closure_function) & entry_to_alist, NULL, SCM_EOL, obarr); + return scm_internal_hash_fold ((scm_t_hash_fold_fn) &entry_to_alist, + NULL, SCM_EOL, obarr); } void @@ -133,57 +132,3 @@ ly_reexport_module (SCM mod) { ly_export (mod, ly_module_symbols (mod)); } - -#ifdef MODULE_GC_KLUDGE -static SCM -redefine_keyval (void * /* closure */, - SCM key, - SCM val, - SCM result) -{ - SCM new_tab = result; - scm_hashq_set_x (new_tab, key, val); - return new_tab; -} - -/* - UGH UGH. - Kludge for older GUILE 1.6 versions. -*/ -void -make_stand_in_procs_weak () -{ - /* - Ugh, ABI breakage for 1.6.5: scm_stand_in_procs is a hashtab from - 1.6.5 on. - */ - if (scm_is_pair (scm_stand_in_procs)) - { - return; - } - - if (scm_weak_key_hash_table_p (scm_stand_in_procs) == SCM_BOOL_T) - { -#if (SCM_MINOR_VERSION == 7) - perform_gc_kludge = false; -#endif - return; - } - - - perform_gc_kludge = true; - - - SCM old_tab = scm_stand_in_procs; - SCM new_tab = scm_make_weak_key_hash_table (scm_from_int (257)); - - new_tab = scm_internal_hash_fold ((Hash_closure_function) & redefine_keyval, - NULL, - new_tab, - old_tab); - - scm_stand_in_procs = new_tab; -} - -ADD_SCM_INIT_FUNC (make_stand_in_procs_weak, make_stand_in_procs_weak); -#endif