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Re^2: [Raku] Assigning defaults to attributes that are fixed length lists (and other confusions)by tomgracey (Scribe) |
on Apr 28, 2021 at 20:00 UTC ( [id://11131819]=note: print w/replies, xml ) | Need Help?? |
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 :)
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