Issue #7995 has been reported by mmeltner (Michael Meltner). ---------------------------------------- Backport #7995: RubyVM::InstructionSequence to_a not working for blocks https://bugs.ruby-lang.org/issues/7995 Author: mmeltner (Michael Meltner) Status: Open Priority: Normal Assignee: Category: Target version: Hello, I try to convert this code into an array via RubyVM::InstructionSequence: ----- def test yield end test do puts "hi there" end ----- then read it back via "iseq_s_load". This causes an error that there is no block defined: <compiled>:in `test': no block given (yield) (LocalJumpError) from <compiled>:in `<compiled>' I assume there is a bug in iseq.c, line 1778: rb_hash_aset(e, ID2SYM(rb_intern("blockptr")), ci->blockiseq ? seq_data_to_ary(ci->blockiseq) : Qnil); as the corresponding line in compile.c is this: VALUE vblock = rb_hash_aref(op, ID2SYM(rb_intern("block"))); so is the symbol name mixed up between "block" and "blockptr" ? - Michael -- http://bugs.ruby-lang.org/