Created
September 17, 2011 15:00
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context sensitiveness
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#!/usr/bin/env perl | |
use warnings; | |
use strict; | |
use Carp 'cluck'; | |
sub worker { | |
my $ctx = | |
defined wantarray. | |
? wantarray | |
? 'LIST'. | |
: 'SCALAR' | |
: 'VOID' | |
; | |
cluck "worker() has been called in $ctx context"; | |
warn "\n"; | |
my @ret = (qw/a b c/); | |
return @ret; | |
} | |
sub call_void { | |
worker(); | |
cluck "Result is: N/A"; | |
} | |
sub call_scalar { | |
my $res = worker(); | |
cluck "Result is: $res"; | |
} | |
sub call_list { | |
my @res = worker(); | |
cluck( "Result is: " . join ', ', @res ); | |
} | |
for (qw/scalar list void/) { | |
my $m = "call_$_"; | |
__PACKAGE__->$m; | |
warn "\n\n"; | |
} |
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