Re^3: How to map function name to coderef?

You can use can to return a coderef:

use strict;
use warnings;

my $doFoo = main->can ('foo');

print $doFoo ? $doFoo->() : "Can't foo\n";

sub foo {
    return 1;
}
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Prints:

1
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True laziness is hard work

Comment on Re^3: How to map function name to coderef? Select or Download Code

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Re^4: How to map function name to coderef? by ikegami (Patriarch) on Jan 07, 2012 at 00:37 UTC
`can` searches the inheritance tree. It should be used for methods, not functions.	[reply] [d/l]
Re^5: How to map function name to coderef? by Anonymous Monk on Jan 07, 2012 at 01:30 UTC
And yet can works, and as there is no @main::ISA, and you shouldn't pollute UNIVERSAL, `main->can( $foo )` is perfectly legit	[reply] [d/l]
Re^6: How to map function name to coderef? by ikegami (Patriarch) on Jan 07, 2012 at 02:49 UTC
How do you know there's no @ISA?	[reply]