Deserialize to ArrayString instead of String for ImageHash #2467
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This saves an allocation on creation of
ImageHash
, but adds a new dependency that is not currently in the dep tree at all.I chose the
arrayvec
crate oversmallvec
,tinyvec
, orheapless
as:smallvec
will fall over to heap allocation if length exceeds the capacitytinyvec
andsmallvec
does not include anArrayString
heapless
contains a lot of unnecessary data structures that may bloat compile time