[rust] add len function for NodeList
#3701
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froydnj
changed the title
size function for NodeListlen function for NodeList
kddnewton
approved these changes
Nov 2, 2025
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Getting the length of a
NodeListcurrently requires usingcount():https://github.com/fables-tales/rubyfmt/blob/ab02a7888892bbc34d05a70e304d95806f8a83f4/librubyfmt/src/format_prism.rs#L659-L660
I think the compiler might be smart enough to unroll the loop and collapse down the iterations to compute the actual size in constant time, but why create work for the compiler if you don't have to?