new

static VALUE
name_err_initialize(int argc, VALUE *argv, VALUE self)
{
    VALUE name;
    VALUE iseqw = Qnil;

    name = (argc > 1) ? argv[--argc] : Qnil;
    rb_call_super(argc, argv);
    rb_ivar_set(self, id_name, name);
    {
        rb_thread_t *th = GET_THREAD();
        rb_control_frame_t *cfp =
            rb_vm_get_ruby_level_next_cfp(th, RUBY_VM_PREVIOUS_CONTROL_FRAME(th->cfp));
        if (cfp) iseqw = rb_iseqw_new(cfp->iseq);
    }
    rb_ivar_set(self, id_iseq, iseqw);
    return self;
}