A list is a sequence of expressions. How context propagates into that list has been the subject of much discussion. Here's a conversation piece: 

sub wa {
    my $place = shift @_;
    my $context = wantarray ? 'list'
                : defined wantarray ? 'scalar' : 'void';
    warn "'$context' context at '$place'\n";
}

my $x ||= (wa('oe1'),wa('oe2'),wa('oe3'));
print "\n";
my $y = (wa('e1'),wa('e2'),wa('e3'));
print "\n";
my $z = sub { (wa('s1'),wa('s2'),wa('s3')) }->();
__END__
'void' context at 'oe1'
'void' context at 'oe2'
'scalar' context at 'oe3'

'void' context at 'e1'
'void' context at 'e2'
'scalar' context at 'e3'

'scalar' context at 's1'
'scalar' context at 's2'
'scalar' context at 's3'

[download]

In reply to Re^2: ||= oddity by kyle
in thread ||= oddity by throop

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