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alive.insert(*vertex);stack.truncate(elt_index);break;
if *vertex == vertex0 {assert!(alive.is_empty());return Ok(alive)} else {alive.insert(*vertex);stack.truncate(elt_index);break;}
// `to_self` tells whether we've already marked a vertex alive// along the path from `vertex0`. This can happen if the only// vertices alive are from change `change`.while let Some((elt, mut to_self)) = stack.pop() {
while let Some(elt) = stack.pop() {
if v.introduced_by() != change {alive.insert(vertex);stack.truncate(elt_index);break;} else if !to_self {
if vertex != vertex0 {