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vm_method.c: should not modify frozen objects

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* vm_method.c (rb_method_entry_make, remove_method): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47551 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2014-09-12 08:13:28 +00:00
parent 94ee7c47cd
commit b41909f603
4 changed files with 19 additions and 2 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
Fri Sep 12 17:13:29 2014 Nobuyoshi Nakada <nobu@ruby-lang.org>
* vm_method.c (rb_method_entry_make, remove_method): ditto.
Fri Sep 12 14:39:55 2014 SHIBATA Hiroshi <shibata.hiroshi@gmail.com>
* gems/bundled_gems: Upgraded to test-unit-3.0.1 and minitest-5.4.1

4
eval.c
View file

@ -409,6 +409,10 @@ rb_frozen_class_p(VALUE klass)
noclass:
Check_Type(klass, T_CLASS);
}
if (FL_TEST(klass, FL_SINGLETON)) {
VALUE obj = rb_ivar_get(klass, id__attached__);
if (OBJ_FROZEN(obj)) OBJ_FREEZE(klass);
}
if (OBJ_FROZEN(klass)) {
const char *desc;

9
test/ruby/test_class.rb
View file

@ -384,4 +384,13 @@ class TestClass < Test::Unit::TestCase
Class.new.freeze.clone.to_s
}
end
def test_singleton_class_of_frozen_object
obj = Object.new
c = obj.singleton_class
obj.freeze
assert_raise(RuntimeError, /frozen object/) {
c.class_eval {def f; end}
}
end
end

4
vm_method.c
View file

@ -271,7 +271,7 @@ rb_method_entry_make(VALUE klass, ID mid, rb_method_type_t type,
}
}
rb_check_frozen(klass);
rb_frozen_class_p(klass);
#if NOEX_NOREDEF
rklass = klass;
#endif
@ -746,7 +746,7 @@ remove_method(VALUE klass, ID mid)
VALUE self = klass;
klass = RCLASS_ORIGIN(klass);
rb_check_frozen(klass);
rb_frozen_class_p(klass);
if (mid == object_id || mid == id__send__ || mid == idInitialize) {
rb_warn("removing `%s' may cause serious problems", rb_id2name(mid));
}