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1 point by rocketnia 2065 days ago | link | parent

Yes, that was exactly what I was saying with 'def-extension-type, and I even mentioned that you could use 'def-extension-type verbatim too (not that the name would make sense).

I've just written my reply to "the O(n) efficiency of 'extend" over here: arclanguage.org/item?id=14374