2061e95efe
This feature enables the ability to anonomously create an array (such as with `UnknownArrayHandle::NewInstance()`) and then use that as an output array. Although resizing `ArrayHandleStride` is a little wonky, it allows worklets to resize them after creation rather than having to know what size to make and allocating the array.
955 B
Added ability to resize strided arrays from ArrayExtractComponent
Previously, it was not possible to resize an ArrayHandleStride because
the operation is a bit ambiguous. The actual array is likely to be padded
by some amount, and there could be an unknown amount of space skipped at
the beginning.
However, there is a good reason to want to resize ArrayHandleStride. This
is the array used to implement the ArrayExtractComponent feature, and
this in turn is used when extracting arrays from an UnknownArrayHandle
whether independent or as an ArrayHandleRecombineVec.
The problem really happens when you create an array of an unknown type in
an UnknownArrayHandle (such as with NewInstance) and then use that as
an output to a worklet. Sure, you could use ArrayHandle::Allocate to
resize before getting the array, but that is awkward for programers.
Instead, allow the extracted arrays to be resized as normal output arrays
would be.