[m-rev.] for review: specialize all calls to {string, io}.format

[Zoltan Somogyi]

On Sun, 30 Nov 2014 18:36:55 +1100 (AEDT), Julien Fischer <jfischer at opturion.com> wrote:
> > Do you have code that I can use as a more substantial test of correctness,
> > even if it doesn't help decide which implementation approach to pick?
> 
> Looking through the libraries I have written that use streams I only
> found two calls to string_writer.format.  I can construct an artifical
> test case based on the tests we already have for string.format which
> will probably more useful here.

I can do that myself enough, so don't bother. I was after more real
tests, but it seems that these are out of reach.

> One other thing: do you specialize format calls in debugging grades?

At the moment, yes.

I agree with your implicit point about this probably not being what
users expect, so I will turn off optimize_format_calls when debugging
is enabled. We could add yet another option to turn it on even in
debugging grades, but I don't think there is much point in that.

Zoltan.