Re: OP_HALT is really useful

[Dirk Laurie <dirk.laurie@...>]

2018-05-28 6:04 GMT+02:00 Sean Conner <sean@conman.org>:
> It was thus said that the Great Sven Olsen once stated:
>>
>> Your advice is very reasonable, of course.  But, I'm afraid I have already
>> started down this dark path -- and it looks like writing a data collector
>> that hooks in via luaD_poscall and luaD_precall is going to suit my own
>> purposes nicely ;)  (Functionally, there's really not much difference
>> between this approach and the debug.sethook(hook,"cr") template code you
>> posted -- but working in C++ lets me keep the instrumentation overhead a
>> bit lower.)
>
>   You can also do what I did via the Lua C API.  Then there's the advice:
> make it work, make it right, make it fast, in that order.  By doing the work
> in Lua, you can save time long term by finding out what exactly you want to
> measure (quickly in development time) and only then drop down to a lower
> level (to do it quickly at runtime).

In a TeX package I use[1], the following comment has survived regular
updates for over 20 years:

% why simple, when it can be done complicated ?

[1] musixtex