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Diggsey/gist:66e162b585cc841602fd

Created May 3, 2015 18:45
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gistfile1.rs
let external = match n.nodes {
[[Node { contents: External(ref mut q @ Some(_)), .. }, Node { contents: External(None), .. }], [Node { contents: External(None), .. }, Node { contents: External(None), .. }]] |
[[Node { contents: External(None), .. }, Node { contents: External(ref mut q @ Some(_)), .. }], [Node { contents: External(None), .. }, Node { contents: External(None), .. }]] |
[[Node { contents: External(None), .. }, Node { contents: External(None), .. }], [Node { contents: External(ref mut q @ Some(_)), .. }, Node { contents: External(None), .. }]] |
[[Node { contents: External(None), .. }, Node { contents: External(None), .. }], [Node { contents: External(None), .. }, Node { contents: External(ref mut q @ Some(_)), .. }]] => {
mem::replace(q, None)
},
_ => None
};
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