Recursively iterates this and all referenced pointers / arrays and verifies that data is indeed contiguous.
Length getter.
Used to work with Contiguous!(S) as if it was S*:
Resets length to 0 allowing same buffer to be used as null indicator without creating new GC allocation later
Data buffer that stores deserialized struct data together with all referenced arrays in a single contiguous chunk
"Tag" struct that wraps a void[] buffer with deserialized contents for the struct of type S. Intended as type-safe tool to guarantee that any operations on such structs preserve the contiguous data layout