I've noticed recently that the debugger doesn't pause on elsif
s, making it confusing to follow sometimes.
For instance, given this code:
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";
print "else 4: $rand\n";
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;
main::(skip_elsif.pl:8): if ( $rand < rand ) # 1
DB<1> p $rand
main::(skip_elsif.pl:22): print "else 4: $rand\n";
else 4: 0.63232421875
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 else
s also, but I supposed that's too much to ask?]
Why does it work this way?
Quantum Mechanics: The dreams stuff is made of
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