5 N3[label="local mut x"];
6 N4[label="stmt let mut x = 23;"];
8 N6[label="local mut y"];
9 N7[label="stmt let mut y = 23;"];
11 N9[label="local mut z"];
12 N10[label="stmt let mut z = 23;"];
13 N11[label="(dummy_node)"];
14 N12[label="expr while x > 0 {\l x -= 1;\l while y > 0 {\l y -= 1;\l while z > 0 { z -= 1; }\l if x > 10 { return; \"unreachable\"; }\l }\l}\l"];
17 N15[label="expr x > 0"];
20 N18[label="expr x -= 1"];
21 N19[label="stmt x -= 1;"];
22 N20[label="(dummy_node)"];
23 N21[label="expr while y > 0 {\l y -= 1;\l while z > 0 { z -= 1; }\l if x > 10 { return; \"unreachable\"; }\l}\l"];
26 N24[label="expr y > 0"];
29 N27[label="expr y -= 1"];
30 N28[label="stmt y -= 1;"];
31 N29[label="(dummy_node)"];
32 N30[label="expr while z > 0 { z -= 1; }"];
35 N33[label="expr z > 0"];
38 N36[label="expr z -= 1"];
39 N37[label="stmt z -= 1;"];
40 N38[label="block { z -= 1; }"];
41 N39[label="stmt while z > 0 { z -= 1; }"];
44 N42[label="expr x > 10"];
45 N43[label="expr return"];
46 N44[label="(dummy_node)"];
47 N45[label="stmt return;"];
48 N46[label="expr \"unreachable\""];
49 N47[label="stmt \"unreachable\";"];
50 N48[label="block { return; \"unreachable\"; }"];
51 N49[label="expr if x > 10 { return; \"unreachable\"; }"];
52 N50[label="block { y -= 1; while z > 0 { z -= 1; } if x > 10 { return; \"unreachable\"; } }"];
53 N51[label="block {\l x -= 1;\l while y > 0 {\l y -= 1;\l while z > 0 { z -= 1; }\l if x > 10 { return; \"unreachable\"; }\l }\l}\l"];
54 N52[label="block {\l let mut x = 23;\l let mut y = 23;\l let mut z = 23;\l while x > 0 {\l x -= 1;\l while y > 0 {\l y -= 1;\l while z > 0 { z -= 1; }\l if x > 10 { return; \"unreachable\"; }\l }\l }\l}\l"];
55 N53[label="expr {\l let mut x = 23;\l let mut y = 23;\l let mut z = 23;\l while x > 0 {\l x -= 1;\l while y > 0 {\l y -= 1;\l while z > 0 { z -= 1; }\l if x > 10 { return; \"unreachable\"; }\l }\l }\l}\l"];