Another alternative: The local of Data::Alias does it right (it ignores ties and such), so this works: 
alias(local $_) = @_ ? $_[0] : $_;

[download]

And it avoids localizing the entire *_

The parens here are needed because alias local $_ = ... would be parsed as alias(local $_ = ...) which means the assignment would make an alias, which isn't what you want here.

In reply to Re^2: Rethrowing with die $@ considered harmful by xmath
in thread Rethrowing with die $@ considered harmful by ysth

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