difft::diff::graph

Function allocate_if_new

Source 
fn allocate_if_new<'s, 'v>(
    v: Vertex<'s, 'v>,
    alloc: &'v Bump,
    seen: &mut HashMap<&Vertex<'s, 'v>, SmallVec<[&'v Vertex<'s, 'v>; 2]>, BuildHasherDefault<FxHasher>>,
) -> &'v Vertex<'s, 'v>