Re^3: Function name in a variable, can't recall the concept (introspection with ->can )

> No, you shouldn't. can performs a method lookup, not a sub lookup.

->can does a sub lookup if @ISA is empty, and the content of @ISA is introspectable too.

And using a package for a module and a class is a pretty dubious concept.

Cheers Rolf
_{(addicted to the Perl Programming Language :)

Wikisyntax for the Monastery
FootballPerl is like chess, only without the dice}

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Re^4: Function name in a variable, can't recall the concept (introspection with ->can ) by ikegami (Patriarch) on Apr 16, 2019 at 19:21 UTC
If I understand correctly, you're saying it's ok to use `can` if you make sure to check that `@ISA` is empty first? 1) You didn't do that, so I guess you're saying your code is wrong too? 2) You'd need to use an alternative approach when `@ISA` isn't empty. Why not use that all the time?	[reply] [d/l] [select]
Re^5: Function name in a variable, can't recall the concept (introspection with ->can ) by LanX (Saint) on Apr 16, 2019 at 21:30 UTC
No I'm saying if one is really worried that the inspected module is a class, one can easily check @ISA. Cheers Rolf _{(addicted to the Perl Programming Language :) Wikisyntax for the Monastery FootballPerl is like chess, only without the dice}	[reply]
Re^6: Function name in a variable, can't recall the concept (introspection with ->can ) by AnomalousMonk (Archbishop) on Apr 16, 2019 at 22:22 UTC
What about a base class? Do such classes always have a declared `@ISA` that is empty? Give a man a fish: `<%-{-{-{-<`	[reply] [d/l] [select]
Re^7: Function name in a variable, can't recall the concept (introspection with ->can ) by LanX (Saint) on Apr 17, 2019 at 09:09 UTC
Re^8: Function name in a variable, can't recall the concept (introspection with ->can ) by ikegami (Patriarch) on Apr 19, 2019 at 09:03 UTC
Re^6: Function name in a variable, can't recall the concept (introspection with ->can ) by ikegami (Patriarch) on Apr 19, 2019 at 08:53 UTC
So it is as I said. You're suggesting that we use `my $sub = @{ get_array_by_name($pkg, 'ISA') } ? get_sub_by_name($pkg, $name) : $pkg->can($name);` [download] instead of `my $sub = get_sub_by_name($pkg, $name);` [download] That's ludicrous.	[reply] [d/l] [select]
Re^7: Function name in a variable, can't recall the concept (introspection with ->can ) by LanX (Saint) on Apr 19, 2019 at 12:41 UTC
Re^8: Function name in a variable, can't recall the concept (introspection with ->can ) by Veltro (Hermit) on Apr 19, 2019 at 13:51 UTC
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Re^8: Function name in a variable, can't recall the concept (introspection with ->can ) by ikegami (Patriarch) on Apr 19, 2019 at 18:03 UTC
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Re^7: Function name in a variable, can't recall the concept (introspection with ->can ) by LanX (Saint) on Apr 20, 2019 at 18:21 UTC
Re^8: Function name in a variable, can't recall the concept (introspection with ->can ) by ikegami (Patriarch) on Apr 21, 2019 at 13:13 UTC
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