> > The code is relying on the identical layout of the beginning > > of the v0 and v1 structs, but this can easily lead to code bugs > > if one were to try to extend this further... > > What is the concern? These structs are part of ABI, they > cannot be changed.
That is a reasonable point, but there should have at *least* been a solid comment about why this sort of cast is safe.
