On Thu, Feb 21, 2013 at 8:36 AM, SASADA Koichi <ko1 / atdot.net> wrote:
> I want to agree with you. But I feel there are worries.

How about #backtrace/#set_backtrace and
#backtrace_locations/#set_backtrace_locations are completely
*separate* representations of the backtrace? That preserves backward
compatibility while providing a path forward to the more structured
backtrace form. I think it's reasonable to expect that the
unstructured backtrace form doesn't update or break the structured
form.

- Charlie