Michael Müller wrote:
I'm not sure if somebody else mentioned this already but I have the feeling
that Giuliano thinks that he has to decide to use try-finally OR try-except but
there are situations where you need both. One of the criteria is if the object
is local or global since for a global object it is likely that you place the
.Free (or for a global object better FreeAndNil()) into a destructor or
finalization section (which means that you have to stop the program in case of
an error and not continue showing just a dialog) so you'll need only the
try-except if you want to catch the exception. In case of a local object you'll
ALWAYS have the lines
Obj := Class.Create;
try
try
// do some code
finally
Obj.Free;
end;
except
writeln('We have a problem);
halt the program or reraise the exception or raise a new one
end;
I tried to make that point but I'm not sure the message reached its mark.
It's possibly unfortunate that Borland chose to use "try" for both
constructs, rather than having distinct try-except-end and
start-finally-end forms.
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
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