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<div class="code" style="counter-reset: line 14"><span class="line"><span><span class="code even" style="--layer: 1" title="16:20-16:22: @0[2]: _4 = &(*_1)
16:13-16:23: @0.Call: _3 = length::<T>(move _4) -> [return: bb1, unwind: bb22]
16:9-16:10: @1[1]: FakeRead(ForLet, _3)
17:8-17:9: @1[4]: _6 = _2
17:13-17:14: @1[6]: _7 = _3
17:8-17:14: @1[7]: _5 = Eq(move _6, move _7)"><span class="annotation">@0,1⦊</span>fn permutate<T: Copy + Display>(xs: &mut [T], k: usize) {</span></span>
<span class="line"><span class="code even" style="--layer: 1" title="16:20-16:22: @0[2]: _4 = &(*_1)
16:13-16:23: @0.Call: _3 = length::<T>(move _4) -> [return: bb1, unwind: bb22]
16:9-16:10: @1[1]: FakeRead(ForLet, _3)
17:8-17:9: @1[4]: _6 = _2
17:13-17:14: @1[6]: _7 = _3
17:8-17:14: @1[7]: _5 = Eq(move _6, move _7)"> let n = length(xs);</span></span>
<span class="line"><span class="code even" style="--layer: 1" title="16:20-16:22: @0[2]: _4 = &(*_1)
16:13-16:23: @0.Call: _3 = length::<T>(move _4) -> [return: bb1, unwind: bb22]
16:9-16:10: @1[1]: FakeRead(ForLet, _3)
17:8-17:9: @1[4]: _6 = _2
17:13-17:14: @1[6]: _7 = _3
17:8-17:14: @1[7]: _5 = Eq(move _6, move _7)"> if k == n<span class="annotation">⦉@0,1</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="18:17-18:19: @2[2]: _9 = &(*_1)
18:9-18:20: @2.Call: _8 = display::<T>(move _9) -> [return: bb4, unwind: bb22]
17:15-19:6: @4[2]: _0 = const ()"><span class="annotation">@2,4⦊</span>{</span></span>
<span class="line"><span class="code odd" style="--layer: 1" title="18:17-18:19: @2[2]: _9 = &(*_1)
18:9-18:20: @2.Call: _8 = display::<T>(move _9) -> [return: bb4, unwind: bb22]
17:15-19:6: @4[2]: _0 = const ()"> display(xs);</span></span>
<span class="line"><span class="code odd" style="--layer: 1" title="18:17-18:19: @2[2]: _9 = &(*_1)
18:9-18:20: @2.Call: _8 = display::<T>(move _9) -> [return: bb4, unwind: bb22]
17:15-19:6: @4[2]: _0 = const ()"> }<span class="annotation">⦉@2,4</span></span></span><span class="code" style="--layer: 0"> else if </span><span><span class="code even" style="--layer: 1" title="19:15-19:16: @3[2]: _11 = _2
19:19-19:20: @3[4]: _12 = _3
19:15-19:20: @3[5]: _10 = Lt(move _11, move _12)"><span class="annotation">@3⦊</span>k < n<span class="annotation">⦉@3</span></span></span><span class="code" style="--layer: 0"> {</span></span>
<span class="line"><span class="code" style="--layer: 0"> for </span><span><span class="code odd" style="--layer: 1" title="20:13-20:14: @14[1]: _25 = ((_21 as Some).0: usize)
20:13-20:14: @14[3]: _26 = _25
20:13-20:14: @14[4]: _19 = move _26
20:13-20:14: @14[5]: _20 = const ()
20:13-20:14: @14[13]: FakeRead(ForLet, _28)"><span class="annotation">@12,14,15,16,17,18⦊</span>i<span class="annotation">⦉@12,14,15,16,17,18</span></span></span><span class="code" style="--layer: 0"> in </span><span><span class="code even" style="--layer: 1" title="20:18-20:19: @5[3]: _15 = _2
20:21-20:22: @5[5]: _16 = _3"><span class="annotation">@5,7⦊</span>k..n<span class="annotation">⦉@5,7</span></span></span><span class="code" style="--layer: 0"> </span><span><span class="code odd" style="--layer: 1" title="21:18-21:20: @14[17]: _31 = &mut (*_1)
21:22-21:23: @14[19]: _32 = _28
21:25-21:26: @14[21]: _33 = _2
21:13-21:27: @14.Call: _30 = swap::<T>(move _31, move _32, move _33) -> [return: bb15, unwind: bb22]
22:23-22:25: @15[6]: _35 = &mut (*_1)
22:27-22:28: @15[9]: _37 = _2
22:27-22:32: @15[10]: _38 = CheckedAdd(_37, const 1_usize)
22:27-22:32: @16[0]: _36 = move (_38.0: usize)
22:13-22:33: @16.Call: _34 = permutate::<T>(move _35, move _36) -> [return: bb17, unwind: bb22]
23:18-23:20: @17[5]: _40 = &mut (*_1)
23:22-23:23: @17[7]: _41 = _28
23:25-23:26: @17[9]: _42 = _2
23:13-23:27: @17.Call: _39 = swap::<T>(move _40, move _41, move _42) -> [return: bb18, unwind: bb22]
20:23-24:10: @18[4]: _29 = const ()"><span class="annotation">@12,14,15,16,17,18⦊</span>{</span></span>
<span class="line"><span class="code odd" style="--layer: 1" title="21:18-21:20: @14[17]: _31 = &mut (*_1)
21:22-21:23: @14[19]: _32 = _28
21:25-21:26: @14[21]: _33 = _2
21:13-21:27: @14.Call: _30 = swap::<T>(move _31, move _32, move _33) -> [return: bb15, unwind: bb22]
22:23-22:25: @15[6]: _35 = &mut (*_1)
22:27-22:28: @15[9]: _37 = _2
22:27-22:32: @15[10]: _38 = CheckedAdd(_37, const 1_usize)
22:27-22:32: @16[0]: _36 = move (_38.0: usize)
22:13-22:33: @16.Call: _34 = permutate::<T>(move _35, move _36) -> [return: bb17, unwind: bb22]
23:18-23:20: @17[5]: _40 = &mut (*_1)
23:22-23:23: @17[7]: _41 = _28
23:25-23:26: @17[9]: _42 = _2
23:13-23:27: @17.Call: _39 = swap::<T>(move _40, move _41, move _42) -> [return: bb18, unwind: bb22]
20:23-24:10: @18[4]: _29 = const ()"> swap(xs, i, k);</span></span>
<span class="line"><span class="code odd" style="--layer: 1" title="21:18-21:20: @14[17]: _31 = &mut (*_1)
21:22-21:23: @14[19]: _32 = _28
21:25-21:26: @14[21]: _33 = _2
21:13-21:27: @14.Call: _30 = swap::<T>(move _31, move _32, move _33) -> [return: bb15, unwind: bb22]
22:23-22:25: @15[6]: _35 = &mut (*_1)
22:27-22:28: @15[9]: _37 = _2
22:27-22:32: @15[10]: _38 = CheckedAdd(_37, const 1_usize)
22:27-22:32: @16[0]: _36 = move (_38.0: usize)
22:13-22:33: @16.Call: _34 = permutate::<T>(move _35, move _36) -> [return: bb17, unwind: bb22]
23:18-23:20: @17[5]: _40 = &mut (*_1)
23:22-23:23: @17[7]: _41 = _28
23:25-23:26: @17[9]: _42 = _2
23:13-23:27: @17.Call: _39 = swap::<T>(move _40, move _41, move _42) -> [return: bb18, unwind: bb22]
20:23-24:10: @18[4]: _29 = const ()"> permutate(xs, k + 1);</span></span>
<span class="line"><span class="code odd" style="--layer: 1" title="21:18-21:20: @14[17]: _31 = &mut (*_1)
21:22-21:23: @14[19]: _32 = _28
21:25-21:26: @14[21]: _33 = _2
21:13-21:27: @14.Call: _30 = swap::<T>(move _31, move _32, move _33) -> [return: bb15, unwind: bb22]
22:23-22:25: @15[6]: _35 = &mut (*_1)
22:27-22:28: @15[9]: _37 = _2
22:27-22:32: @15[10]: _38 = CheckedAdd(_37, const 1_usize)
22:27-22:32: @16[0]: _36 = move (_38.0: usize)
22:13-22:33: @16.Call: _34 = permutate::<T>(move _35, move _36) -> [return: bb17, unwind: bb22]
23:18-23:20: @17[5]: _40 = &mut (*_1)
23:22-23:23: @17[7]: _41 = _28
23:25-23:26: @17[9]: _42 = _2
23:13-23:27: @17.Call: _39 = swap::<T>(move _40, move _41, move _42) -> [return: bb18, unwind: bb22]
20:23-24:10: @18[4]: _29 = const ()"> swap(xs, i, k);</span></span>
<span class="line"><span class="code odd" style="--layer: 1" title="21:18-21:20: @14[17]: _31 = &mut (*_1)
21:22-21:23: @14[19]: _32 = _28
21:25-21:26: @14[21]: _33 = _2
21:13-21:27: @14.Call: _30 = swap::<T>(move _31, move _32, move _33) -> [return: bb15, unwind: bb22]
22:23-22:25: @15[6]: _35 = &mut (*_1)
22:27-22:28: @15[9]: _37 = _2
22:27-22:32: @15[10]: _38 = CheckedAdd(_37, const 1_usize)
22:27-22:32: @16[0]: _36 = move (_38.0: usize)
22:13-22:33: @16.Call: _34 = permutate::<T>(move _35, move _36) -> [return: bb17, unwind: bb22]
23:18-23:20: @17[5]: _40 = &mut (*_1)
23:22-23:23: @17[7]: _41 = _28
23:25-23:26: @17[9]: _42 = _2
23:13-23:27: @17.Call: _39 = swap::<T>(move _40, move _41, move _42) -> [return: bb18, unwind: bb22]
20:23-24:10: @18[4]: _29 = const ()"> }<span class="annotation">⦉@12,14,15,16,17,18</span></span></span><span class="code" style="--layer: 0"></span></span>
<span class="line"><span class="code" style="--layer: 0"> } else </span><span><span class="code even" style="--layer: 1" title="26:9-26:16: @6.Call: _43 = error() -> [return: bb19, unwind: bb22]
25:12-27:6: @19[1]: _0 = const ()"><span class="annotation">@6,19⦊</span>{</span></span>
<span class="line"><span class="code even" style="--layer: 1" title="26:9-26:16: @6.Call: _43 = error() -> [return: bb19, unwind: bb22]
25:12-27:6: @19[1]: _0 = const ()"> error();</span></span>
<span class="line"><span class="code even" style="--layer: 1" title="26:9-26:16: @6.Call: _43 = error() -> [return: bb19, unwind: bb22]
25:12-27:6: @19[1]: _0 = const ()"> }<span class="annotation">⦉@6,19</span></span></span><span class="code" style="--layer: 0"></span></span>
<span class="line"><span class="code" style="--layer: 0">}</span><span><span class="code odd" style="--layer: 1" title="28:2-28:2: @21.Return: return"><span class="annotation">@21⦊</span>‸<span class="annotation">⦉@21</span></span></span></span></div>
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