[PBP-pm] what's the correct way to do eval

[Chris Dolan]

On Dec 25, 2007, at 11:03 PM, Randal L. Schwartz wrote:

>>>>>> "Chris" == Chris Dolan <chris at chrisdolan.net> writes:
>
> Chris> Huh?  Isn't the following equivalent?
>
> Chris>   my $has_proc_pid_file = eval "require Proc::PID::File;
> Chris> Proc::PID::File->import; 1;";
>
> It's the eval $string that P::C is complaining about.  And there's
> not a good way around that.
>

How about this:

   my $has_proc_pid_file;
   eval { require Proc::PID::File; Proc::PID::File->import;  
$has_proc_pid_file = 1; };

Or perhaps this is equivalent (untested):

   my $has_proc_pid_file = eval { require Proc::PID::File;  
Proc::PID::File->import; 1; };


Chris