[racket-dev] [plt] Push #28919: master branch updated

From: Matthew Flatt (mflatt at cs.utah.edu)
Date: Mon Jun 23 11:15:58 EDT 2014

At Mon, 23 Jun 2014 10:45:44 -0400, Sam Tobin-Hochstadt wrote:
> On Mon, Jun 23, 2014 at 8:29 AM,  <mflatt at racket-lang.org> wrote:
> >
> > 6a5a303 Matthew Flatt <mflatt at racket-lang.org> 2014-06-23 13:23:47 +0100
> > :
> > | avoid getting stuck on non-UTF-8 symbol encodings in bytecode
> > |
> Does this fix apply to keywords as well?


> I assume that strings are handled differently.

Yes, but now that I look closely, the "fuzz.rkt" test was getting stuck
while deciding whether to use vertical-bar quoting when printing a
symbol (in an error message, I assume). I didn't fix the reading of
symbols, which means that I fixed a downstream symptom instead of the
source of the problem.

The problem remains that a ".zo" could provide an invalid UTF-8
encoding for a symbol, and then something like `symbol->string` could
go wrong. I'll push a repair to the bytecode reader so that it checks
the encoding of symbols (which doesn't seem to slow it down

Posted on the dev mailing list.