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scm_[current_]module_transformer returns the %pre-modules-transformer, if set

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* libguile/modules.c (scm_module_transformer)
  (scm_current_module_transformer): So, if the module system hasn't yet
  booted, take the current transformer from a variable named
  %pre-modules-transformer from the %pre-modules-obarray. This is a
  prequel to booting syncase early in boot-9.
This commit is contained in:
Andy Wingo 2009-03-09 20:49:54 +01:00
parent dec62b5ef8
commit b7e6589fff
1 changed files with 12 additions and 6 deletions
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14
libguile/modules.c
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@ -577,11 +577,20 @@ scm_current_module_lookup_closure ()
return SCM_BOOL_F;
}
SCM_SYMBOL (sym_sys_pre_modules_transformer, "%pre-modules-transformer");
SCM
scm_module_transformer (SCM module)
{
if (scm_is_false (module))
if (SCM_UNLIKELY (scm_is_false (module)))
{ SCM v = scm_hashq_ref (scm_pre_modules_obarray,
sym_sys_pre_modules_transformer,
SCM_BOOL_F);
if (scm_is_false (v))
return SCM_BOOL_F;
else
return SCM_VARIABLE_REF (v);
}
else
return SCM_MODULE_TRANSFORMER (module);
}
@ -589,10 +598,7 @@ scm_module_transformer (SCM module)
SCM
scm_current_module_transformer ()
{
if (scm_module_system_booted_p)
return scm_module_transformer (scm_current_module ());
else
return SCM_BOOL_F;
}
SCM_DEFINE (scm_module_import_interface, "module-import-interface", 2, 0, 0,