I’m a little confused here, to me it looks like the second contract violation
is completely different from the first one.
You were expecting `foo` to raise a contract violation but in your executable
example it appears that contract violation is being raised by the `build-path`
function not
On Thursday, November 1, 2018 at 7:38:29 PM UTC+8, Alexander McLin wrote:
>
> I’m a little confused here, to me it looks like the second contract
> violation is completely different from the first one.
>
My program is only seven lines of code and does not call `build-path`.
Also, if I fix
Is it possible to create a temporary file, write to it, run a command on it,
and the possibly delete the file from within a macro? Or is it possible to run
a command (as in `system`) in a context where it pretends that some file exists?
And, how does this play with DrRacket's background
DrRacket disallows network and filesystem access during its online
expansion. Partly for security reasons and partly because it seems unlikely
that the code one writes that does that would be kill safe. You might be
able to bike the abstractions you news via the FFI but I guess it will be
hard to
On 11/1/2018 8:32 PM, Robby Findler wrote:
DrRacket disallows network and filesystem access during its online
expansion. Partly for security reasons and partly because it seems
unlikely that the code one writes that does that would be kill safe.
You might be able to bike the abstractions you
*Resurrecting an old thread.*
I recently tried to see what would happen if I changed the
interactions-canvas% and definitions-canvas% to be the following:
(define interactions-canvas%
(class editor-canvas%
(init [style '(transparent)])
(super-new (style (cons 'auto-hscroll
Thanks for catching this! This is a bug in the setup/dirs library,
which the contract system transitively depends on to compute the path
in the error message. I opened a pull request and let's see how it
goes (#2352).
On Thu, Nov 1, 2018 at 5:23 PM Alex Harsanyi wrote:
>
>
>
> On Thursday,
> On Nov 1, 2018, at 8:32 PM, Robby Findler wrote:
>
> DrRacket disallows network and filesystem access during its online expansion.
> Partly for security reasons and partly because it seems unlikely that the
> code one writes that does that would be kill safe. You might be able to bike
>
Hi Alex,
On 11/1/2018 6:57 PM, Alex Knauth wrote:
Is it possible to create a temporary file, write to it, run a command
on it, and the possibly delete the file from within a macro?
Yes it is possible [see below]. What you need to do depends on whether
you want to keep the file open in
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