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Perl's tokenizer classifies some keywords as "weak keywords" such that you can override them with user-defined functions. (Calling them is another matter.) delete is a weak keyword and each is not. our is weak, but sub is not:

use strict; use warnings; sub each { warn 'main::each() was called' } sub delete { warn 'main::delete() was called' } sub dump { warn 'main::dump() was called' } sub chop { warn 'main::chop() was called' } sub our { warn 'main::our() was called' } my %person = ( name => 'Ken Takakura' ); while ( my ($key, $val) = each %person ) { print "$key: $val\n"; } &our( $person{name} ); delete $person{name}; chop $person{name}; dump( $person{name} );

I don't know how to make a list of weak and normal keywords without reading the source code (keywords.c or regen/keywords.pl).


In reply to Re: 'Ambiguous call' diagnosis seems ambiguous by chromatic
in thread 'Ambiguous call' diagnosis seems ambiguous by anazawa

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