I've noticed recently that the debugger doesn't pause on elsifs, making it confusing to follow sometimes.

For instance, given this code: 

#!/your/perl/here

use strict;
use warnings;

my $rand = rand;

if ( $rand < rand ) # 1
{
    print "if 1: $rand\n";
}
elsif ( $rand < rand ) # 2
{
    print "elsif 2: $rand\n";
}
elsif ( $rand < rand ) # 3
{
    print "elsif 3: $rand\n";
}
else
{
    print "else 4: $rand\n";
}

[download]
I get the following in a debugger session: 
C:\Perl\perl\perlmonks>perl -d skip_elsif.pl

Loading DB routines from perl5db.pl version 1.19
Editor support available.

Enter h or `h h' for help, or `perldoc perldebug' for more help.

main::(skip_elsif.pl:6):        my $rand = rand;
  DB<1> s
main::(skip_elsif.pl:8):        if ( $rand < rand ) # 1
main::(skip_elsif.pl:9):        {
  DB<1> p $rand
0.63232421875
  DB<2>
main::(skip_elsif.pl:22):               print "else 4: $rand\n";
  DB<2>
else 4: 0.63232421875

[download]
I'm expecting the debugger to pause on each conditional, especially as I might want to inspect some of the variables before the next evaluation. [I wouldn't mind if it paused on elses also, but I supposed that's too much to ask?]

Why does it work this way?

-QM
--
Quantum Mechanics: The dreams stuff is made of

In reply to No Pause on Elsif in Debugger by QM

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