e03aa71b33
Since Perl allows us to provide a subroutine reference or a method name to the -> operator when used as a method call, and a subroutine doesn't require the invocant to actually be an object, we can create safe versions of isa, can and friends by using a subroutine reference that only tries to call the method if it's used on an object. e.g. my $isa_Foo = $maybe_an_object->$_call_if_object(isa => 'Foo'); Note that we don't handle trying class names, because many things are valid class names that you might not want to treat as one (like say "Matt") - the is_module_name function from Module::Runtime is a good way to check for something you might be able to call methods on if you want to do that. WWW: http://search.cpan.org/dist/Safe-Isa/
5 lines
204 B
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5 lines
204 B
Text
%%SITE_PERL%%/Safe/Isa.pm
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%%SITE_PERL%%/%%PERL_ARCH%%/auto/Safe/Isa/.packlist
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@dirrm %%SITE_PERL%%/%%PERL_ARCH%%/auto/Safe/Isa
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@dirrmtry %%SITE_PERL%%/%%PERL_ARCH%%/auto/Safe
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@dirrmtry %%SITE_PERL%%/Safe
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