diff options
| -rw-r--r-- | enumerator.c | 1 | ||||
| -rw-r--r-- | test/ruby/test_enumerator.rb | 5 |
2 files changed, 6 insertions, 0 deletions
diff --git a/enumerator.c b/enumerator.c index 54cbdc482b..aa961851bf 100644 --- a/enumerator.c +++ b/enumerator.c @@ -1178,6 +1178,7 @@ generator_init(VALUE obj, VALUE proc) { struct generator *ptr; + rb_check_frozen(obj); TypedData_Get_Struct(obj, struct generator, &generator_data_type, ptr); if (!ptr) { diff --git a/test/ruby/test_enumerator.rb b/test/ruby/test_enumerator.rb index 07f10dd041..e3270f3d6a 100644 --- a/test/ruby/test_enumerator.rb +++ b/test/ruby/test_enumerator.rb @@ -419,6 +419,11 @@ class TestEnumerator < Test::Unit::TestCase a = [] assert_equal(:foo, g2.each {|x| a << x }) assert_equal([1, 2, 3], a) + + g.freeze + assert_raise(RuntimeError) { + g.__send__ :initialize, proc { |y| y << 4 << 5 } + } end def test_generator_args |