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iseq.c: undef allocator

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* iseq.c (Init_ISeq): undefine allocator of InstructionSequence,
  to get rid of segfaults at method call on uninitialized object.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55981 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2016-08-22 00:02:59 +00:00
parent 02a30129a1
commit 36b9a37a80
3 changed files with 10 additions and 0 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Mon Aug 22 09:02:56 2016 Nobuyoshi Nakada <nobu@ruby-lang.org>
* iseq.c (Init_ISeq): undefine allocator of InstructionSequence,
to get rid of segfaults at method call on uninitialized object.
Sat Aug 21 05:47:00 2016 Kenta Murata <mrkn@mrkn.jp>
* enum.c (enum_sort): prevent wasteful array duplication.

1
iseq.c
View file

@ -2419,6 +2419,7 @@ Init_ISeq(void)
{
/* declare ::RubyVM::InstructionSequence */
rb_cISeq = rb_define_class_under(rb_cRubyVM, "InstructionSequence", rb_cObject);
rb_undef_alloc_func(rb_cISeq);
rb_define_method(rb_cISeq, "inspect", iseqw_inspect, 0);
rb_define_method(rb_cISeq, "disasm", iseqw_disasm, 0);
rb_define_method(rb_cISeq, "disassemble", iseqw_disasm, 0);

4
test/ruby/test_iseq.rb
View file

@ -19,6 +19,10 @@ class TestISeq < Test::Unit::TestCase
body.find_all{|e| e.kind_of? Integer}
end
def test_allocate
assert_raise(TypeError) {ISeq.allocate}
end
def test_to_a_lines
src = <<-EOS
p __LINE__ # 1