Re: Re: Conditionally override 'time' builtin with Time::HiRes::time()

[meonkeys]

Ah, perfect!

Here's what I really want, though:

#!/usr/bin/perl -w
use strict;

BEGIN {
  Time::HiRes->import('time') if eval "require Time::HiRes";
}

my $time = time;
print "$time\n";

UPDATE (Fri Apr 30 11:15:23 PDT 2004):

Your advice is well-received, chip! Changed the eval EXPR to eval BLOCK. As for letting the user know, that is also a good idea. I left that out for brevity. This is actually for a patch to Net::IRC, so I'll let Jeremy (the maintainer) decide weather he wants to emit a warning.

#!/usr/bin/perl -w
use strict;

BEGIN {
  Time::HiRes->import('time') if eval { require Time::HiRes };
}

my $time = time;
print "$time\n";

[chip]

That eval STRING could just as well be eval BLOCK.

More to the point: Having your program work differently just because a module gets installed is usually evil. People don't expect that installing a module will make apparently unrelated code start doing different things. At least print a diagnostic or something, a la CPAN and Term::ReadLine.