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Re: Function name in a variable, can't recall the concept

by mpersico (Monk)
on Apr 02, 2019 at 15:00 UTC ( [id://1232020]=note: print w/replies, xml ) Need Help??


in reply to Function name in a variable, can't recall the concept

Today is not my day. When it was mentioned that what I demonstrated in my examples wouldn't work under use strict; I went back and looked at the code again and realized my example was wrong. Here's what I am really doing: 
my $funcname = ( $someCondition ? 'foo' : 'bar' );
$someObject->$funcname($arg1, $arg2);

[download]
It's not "Function name in variable", it's "Method name in variable", and a relevant reference to same is https://perldoc.perl.org/perlobj.html#Method-Call-Variations

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Re^2: Function name in a variable, can't recall the concept
by VinsWorldcom (Prior) on Apr 02, 2019 at 21:28 UTC

    That's OK, from examples above:

    use strict;
use warnings;

package Object;
sub new { return bless \{} }
sub foo { printf "hello foo = %s\n", ( caller(0) )[3]; }
sub bar { printf "hello bar = %s\n", ( caller(0) )[3]; }

package main;

my $someObject    = Object->new();

my $someCondition = 0;
my $funcname      = ( $someCondition ? 'foo' : 'bar' );
$someObject->$funcname($funcname);

$someCondition = 1;
$funcname = ( $someCondition ? 'foo' : 'bar' );
$someObject->$funcname($funcname);

    [download]
[reply]
[d/l]

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