[Swift-devel] Problem using @extractint() on derived file

[Mihael Hategan]

Sorry. Didn't look properly.

Yes, this happens because @f can be resolved before f can be, so swift
will happily do the extractint before echo finishes.

I don't have a solution yet.

On Tue, 2009-02-24 at 15:24 -0600, Michael Wilde wrote:
> The file doesnt exist - its created in the script, and hence I would 
> expect it to be placed back in the dir that I ran swift from.
> 
> (But Ive been testing further, in my original scripts, and am seeing 
> confusing results, so I need to sort out and isolate.
> 
> I do this "y=f(x); rc=extractint(y)" pattern in a loop, thus I needed to 
> make the file name unique (else I get the "file already in cache" 
> error). So I switched to an anonymous file, and then started getting the 
> "no such file" error.
> 
> Whats confusing is I may have seen a csae similar to whats below that 
> did work, so I need to do more testing to isolate when it works and when 
> it fails.
> 
> Can you duplicate the failure with the simple script below?
> 
> - Mike
> 
> 
> On 2/24/09 3:12 PM, Mihael Hategan wrote:
> > Where is that file with respect to:
> > - the script
> > - the place you are running this from
> > 
> > On Tue, 2009-02-24 at 15:07 -0600, Michael Wilde wrote:
> >> This script:
> >>
> >> ---
> >>
> >> type file;
> >>
> >> app (file out) echo (string s) { echo s stdout=@out; }
> >>
> >> file f<"a">;
> >> int i;
> >>
> >> f = echo("123");
> >> i = @extractint(@f);
> >> trace("i=", i);
> >>
> >> ---
> >>
> >> produces:
> >>
> >> Swift svn swift-r2552 cog-r2303 
> >>
> >>  
> >>
> >> RunID: 20090224-1455-k1vj4uy7 
> >>
> >> Progress: 
> >>
> >> Execution failed: 
> >>
> >>          Reading integer content of file 
> >>
> >> Caused by: 
> >>
> >>          a (No such file or directory) 
> >>
> >>
> >>
> >> ---
> >>
> >> I seem to get the same behavior from readData, and the same if I 
> >> explicitly specify "a" as the argument to @extractint();
> >>
> >> Is this because @extractint() is not waiting for "f" to get produced?
> >>
> >> Ive extracted this example while debugging a script that uses an app to 
> >> test the termination condition of an iterate loop.
> >>
> >> - Mike
> >> _______________________________________________
> >> Swift-devel mailing list
> >> Swift-devel at ci.uchicago.edu
> >> http://mail.ci.uchicago.edu/mailman/listinfo/swift-devel
> >