future_moves: move out and_then
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@ -545,7 +545,8 @@ impl FutureMoves {
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.map(|mut node| {
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node.parent = node
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.parent
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.and_then(|parent| index_map.get(parent).and_then(|&x| x));
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.and_then(|parent| index_map.get(parent))
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.and_then(|&x| x);
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for c in node.children.as_mut_slice() {
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*c = index_map
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