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yaml --- r: 149685 b: refs/heads/try2 c: 999d55d h: refs/heads/master i: 149683: 61b73d1 v: v3
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[refs]

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refs/heads/try: 519addf6277dbafccbb4159db4b710c37eaa2ec5
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refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
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refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
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refs/heads/try2: 2cb83fdd7ea4e76d4b1c830a97480521cc405625
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refs/heads/try2: 999d55d5f6e229b8c1118ac35c8cbf3b9c59e3a1
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refs/heads/dist-snap: ba4081a5a8573875fed17545846f6f6902c8ba8d
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refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596
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refs/tags/release-0.3: b5f0d0f648d9a6153664837026ba1be43d3e2503
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// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#[deriving(Clone)]
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enum Noun
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{
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Atom(int),
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Cell(~Noun, ~Noun)
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}
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fn fas(n: &Noun) -> Noun
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{
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match n
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{
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&Cell(~Atom(2), ~Cell(ref a, _)) => (**a).clone(),
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_ => fail!("Invalid fas pattern")
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}
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}
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pub fn main() {
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fas(&Cell(~Atom(2), ~Cell(~Atom(2), ~Atom(3))));
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}

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