}
ty::Array(ty, len) => {
- let len = len.try_eval_usize(tcx, ParamEnv::reveal_all()).unwrap();
+ let len =
+ len.try_eval_usize(tcx, ParamEnv::reveal_all()).ok_or(Err::Unspecified)?;
let elt = Tree::from_ty(*ty, tcx)?;
Ok(std::iter::repeat(elt)
.take(len as usize)
// finally: padding
let padding_span = trace_span!("adding trailing padding").entered();
- let padding_needed = layout_summary.total_size - variant_layout.size();
- if padding_needed > 0 {
+ if layout_summary.total_size > variant_layout.size() {
+ let padding_needed = layout_summary.total_size - variant_layout.size();
tree = tree.then(Self::padding(padding_needed));
};
drop(padding_span);