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* ext/digest/digest.c (get_digest_base_metadata): Allow inheriting

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Digest::Base subclasses, which was unintentionally made
  impossible while restructuring Digest classes.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@11947 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
knu 2007-02-28 18:24:25 +00:00
parent 50d3ece900
commit 04cd7cc62d
2 changed files with 14 additions and 4 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
Thu Mar 1 02:55:25 2007 Akinori MUSHA <knu@iDaemons.org>
* ext/digest/digest.c (get_digest_base_metadata): Allow inheriting
Digest::Base subclasses, which was unintentionally made
impossible while restructuring Digest classes.
Thu Mar 1 02:05:17 2007 Nobuyoshi Nakada <nobu@ruby-lang.org>
* mkconfig.rb (patchlevel): read from version.h.

12
ext/digest/digest.c
View file

@ -423,15 +423,19 @@ rb_digest_class_s_hexdigest(int argc, VALUE *argv, VALUE klass)
static rb_digest_metadata_t *
get_digest_base_metadata(VALUE klass)
{
VALUE p;
VALUE obj;
rb_digest_metadata_t *algo;
if (rb_ivar_defined(klass, id_metadata) == Qfalse) {
/* This class should not be subclassed in Ruby */
rb_notimplement();
for (p = klass; p; p = RCLASS(p)->super) {
if (rb_ivar_defined(p, id_metadata)) {
obj = rb_ivar_get(p, id_metadata);
break;
}
}
obj = rb_ivar_get(klass, id_metadata);
if (!p)
rb_raise(rb_eRuntimeError, "Digest::Base cannot be inherited in Ruby");
Data_Get_Struct(obj, rb_digest_metadata_t, algo);