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Add a frozenness check to Enumerator#initialize.

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* enumerator.c (enumerator_init): Add a frozenness check to
  prevent a frozen Enumerator object from being reinitialized with
  a different enumerable object.  This is the least we should do,
  and more fixes will follow. [Fixes GH-368] Patch by Kenichi
  Kamiya.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42233 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
knu 2013-07-29 12:06:39 +00:00
parent ef01a5a649
commit 8cb0de91c4
3 changed files with 19 additions and 0 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
Mon Jul 29 20:53:24 2013 Akinori MUSHA <knu@iDaemons.org>
* enumerator.c (enumerator_init): Add a frozenness check to
prevent a frozen Enumerator object from being reinitialized with
a different enumerable object. This is the least we should do,
and more fixes will follow. [Fixes GH-368] Patch by Kenichi
Kamiya.
Mon Jul 29 20:14:24 2013 Masaki Matsushita <glass.saga@gmail.com>
* hash.c (rb_hash_assoc): revert r42224. table->type->compare is

1
enumerator.c
View file

@ -270,6 +270,7 @@ enumerator_init(VALUE enum_obj, VALUE obj, VALUE meth, int argc, VALUE *argv, rb
{
struct enumerator *ptr;
rb_check_frozen(enum_obj);
TypedData_Get_Struct(enum_obj, struct enumerator, &enumerator_data_type, ptr);
if (!ptr) {

10
test/ruby/test_enumerator.rb
View file

@ -67,6 +67,16 @@ class TestEnumerator < Test::Unit::TestCase
assert_match 'Enumerator.new without a block is deprecated', err
assert_equal([1, 2, 3], Enumerator.new { |y| i = 0; loop { y << (i += 1) } }.take(3))
assert_raise(ArgumentError) { Enumerator.new }
enum = @obj.to_enum
assert_raise(NoMethodError) { enum.each {} }
enum.freeze
assert_raise(RuntimeError) {
capture_io do
# warning: Enumerator.new without a block is deprecated; use Object#to_enum
enum.__send__(:initialize, @obj, :foo)
end
}
end
def test_initialize_copy