Well hopefully we will have error messages that also includes the filename and the contents of $!. (Like
perlstyle says to do.)
But lexically scoped filehandles have something to say for them. And you can even do it in Perl 5.005. Consider:
use Carp;
# time passes
# Takes a name to open, returns an open filehandle
sub my_open {
my $file = shift;
# Put the declaration in the open to confuse people? :-)
my $fh = do {local *FH};
open($fh, $file) or confess("Cannot open '$file': $!");
return $fh;
}
There you are. Now you can just write:
my $handle = my_open("whatever");
and you will have lexically scoped filehandles. The only gotcha is that people may get confused about why they cannot use them like this:
print $self->{handle} @stuff;
but instead must either put the handle in a scalar, turn
print into a method call, or use the syntactic trick:
print { $self->{handle} } @stuff;
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