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proc.c: use already included ancestor iclass

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* proc.c (umethod_bind): use the ancestor iclass instead of new
  iclass to get rid of infinite recursion, if the defined module
  is already included.  [ruby-core:62014] [Bug #9721]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45585 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2014-04-14 08:20:10 +00:00
parent c2a7a091cc
commit 160b67df68
3 changed files with 31 additions and 2 deletions
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6
ChangeLog
View file

@ -1,3 +1,9 @@
Mon Apr 14 17:20:10 2014 Nobuyoshi Nakada <nobu@ruby-lang.org>
* proc.c (umethod_bind): use the ancestor iclass instead of new
iclass to get rid of infinite recursion, if the defined module
is already included. [ruby-core:62014] [Bug #9721]
Sun Apr 13 12:46:58 2014 Tanaka Akira <akr@fsij.org>
* bignum.c (SIZEOF_BDIGIT): Renamed from SIZEOF_BDIGITS.

8
proc.c
View file

@ -2044,7 +2044,13 @@ umethod_bind(VALUE method, VALUE recv)
if (bound->me->def) bound->me->def->alias_count++;
rclass = CLASS_OF(recv);
if (BUILTIN_TYPE(bound->defined_class) == T_MODULE) {
rclass = rb_include_class_new(methclass, rclass);
VALUE ic = rb_class_search_ancestor(rclass, bound->defined_class);
if (ic) {
rclass = ic;
}
else {
rclass = rb_include_class_new(methclass, rclass);
}
}
bound->recv = recv;
bound->rclass = rclass;

19
test/ruby/test_super.rb
View file

@ -469,11 +469,28 @@ class TestSuper < Test::Unit::TestCase
end
end
m = b.instance_method(:foo).bind(Object.new.extend(a))
um = b.instance_method(:foo)
m = um.bind(Object.new.extend(a))
result = []
assert_nothing_raised(NoMethodError, bug9721) do
m.call(result)
end
assert_equal(%w[B A], result, bug9721)
bug9740 = '[ruby-core:62017] [Bug #9740]'
b.module_eval do
define_method(:foo) do |result|
um.bind(self).call(result)
end
end
result.clear
o = Object.new.extend(a).extend(b)
assert_nothing_raised(NoMethodError, SystemStackError, bug9740) do
o.foo(result)
end
assert_equal(%w[B A], result, bug9721)
end
end