focal (3) Perl::Critic::Policy::Freenode::AmpersandSubCalls.3pm.gz

Provided by: libperl-critic-freenode-perl_0.032-1_all bug

NAME
       Perl::Critic::Policy::Freenode::AmpersandSubCalls - Don't use & to call subroutines


DESCRIPTION
       Ampersands ("&") were once needed to call subroutines, but in modern Perl they are not only unnecessary
       but actually change the behavior from what you may expect. Calling a subroutine with an ampersand ignores
       the subroutine's prototype if any, which may change what arguments the subroutine receives.
       Additionally, calling a subroutine as "&foo;" with no arguments will pass on the contents of @_ from the
       current subroutine, which may be quite surprising. Unless used intentionally for this behavior, the
       ampersand should simply be omitted.

         my $value = &foo();  # not ok
         my $sum = &foo(1,2); # not ok
         my $value = foo();   # ok
         my $sum = foo 1,2;   # ok

       This policy is a subclass of the core policy Perl::Critic::Policy::Subroutines::ProhibitAmpersandSigils,
       and performs the same function but in the "freenode" theme.


AFFILIATION
       This policy is part of Perl::Critic::Freenode.


CONFIGURATION
       This policy is not configurable except for the standard options.


AUTHOR
       Dan Book, "dbook@cpan.org"


       Copyright 2015, Dan Book.

       This library is free software; you may redistribute it and/or modify it under the terms of the Artistic
       License version 2.0.


SEE ALSO
       Perl::Critic

perl v5.30.0                                       2019-11Perl::Critic::Policy::Freenode::AmpersandSubCalls(3pm)