On Tue, Mar 10, 2009 at 03:40:20AM -0700, Vasily Chekalkin wrote:
> +    multi method reduce(Code $expression) {
> +        my Int $arity = $expression.count;
> +        die('Cannot reduce() using a unary or nullary function.') if $arity 
> < 2;
> +
> +        my $list := @.list or fail('Cannot reduce() empty list');

Why is one condition 'die' and the other condition 'fail'?

> +        my $res = $list.shift;

Note that $list might not be something that can be shifted -- 'shift'
is only available for Arrays and Iterators.

So, patch rejected, at least this version of it.

Pm

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