about Jacks' functioning
Tom Tromey
tromey@redhat.com
Thu May 18 16:18:00 GMT 2006
>>>>> "Toni" == Toni Masse <toni.masse@ateji.com> writes:
Sorry about the big delay in my reply.
Toni> My team and me would like to use Jacks to test our own java compiler,
Toni> however I'm not very experienced with Tcl;
Toni> so I'd like to know how Jacks determines the compilation result (I've
Toni> looked in jacks.tcl but I'm not sure about the exact behavior of
Toni> Jacks),
The proc named _exec_impl is used to actually invoke the compiler.
This chunk invokes it:
set cmd "exec $prog $prog_flags $prog_args > exec.out 2> exec.err"
if {[info exists ::env(JACKS_EXEC_DEBUG)]} {
puts stderr "JACKS_EXEC_DEBUG: $cmd"
}
eval $cmd
This is wrapped in a 'catch' clause; Tcl's exec command throws an
exception if the exec "fails", which in Tcl means that either it
really fails (command not found or something) or that the command
returns a non-zero exit status. I'm not sure how this works on other
platforms.
Toni> and why is a cvs client needed to generate the change file (with
Toni> "jacks loggen" command)? Could I deactivate it?
Yeah, I've always wondered about this myself. The jacks logging stuff
seems a bit user-unfriendly. I'm sure it can be deactivated somehow.
Tom
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