Hi Dean - thanks for that, you really cleared a lot up there.

"The code has @.items[3] is rw; creates a positional attribute which contains a fixed-length array with 3 elements. Thus, the array is truthy and the unless is not triggered."

I guess this is just a matter of convention and I am happy for fixed (non-zero) length arrays to be regarded as "true". That would make me right about the error message being slightly misleading, I think?

Thanks for steering me in the direction of writing my own accessor. I am aware that this is an option - though I haven't experimented with it yet. Actually I was hoping it could be done with has, as I am expecting (too much of?) Raku code to be pretty and boilerplate free. The solution you suggested is a great help - but does seem like quite a lot of code lines. I guess this is just because it's a workaround until the ability to assigning defaults to fixed length arrays gets implemented. Then it will be reduced back to a single line (I suppose).

Thanks again for your help :)

In reply to Re^2: [Raku] Assigning defaults to attributes that are fixed length lists (and other confusions) by tomgracey
in thread [Raku] Assigning defaults to attributes that are fixed length lists (and other confusions) by tomgracey

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