// MIR for `ezmap` after PreCodegen fn ezmap(_1: Option) -> Option { debug x => _1; // in scope 0 at $DIR/simple_option_map_e2e.rs:+0:14: +0:15 let mut _0: std::option::Option; // return place in scope 0 at $DIR/simple_option_map_e2e.rs:+0:33: +0:44 scope 1 (inlined map::) { // at $DIR/simple_option_map_e2e.rs:14:5: 14:22 debug slf => _1; // in scope 1 at $DIR/simple_option_map_e2e.rs:2:17: 2:20 debug f => const ZeroSized: [closure@$DIR/simple_option_map_e2e.rs:14:12: 14:15]; // in scope 1 at $DIR/simple_option_map_e2e.rs:2:33: 2:34 let mut _2: isize; // in scope 1 at $DIR/simple_option_map_e2e.rs:7:9: 7:16 let _3: i32; // in scope 1 at $DIR/simple_option_map_e2e.rs:7:14: 7:15 let mut _4: i32; // in scope 1 at $DIR/simple_option_map_e2e.rs:7:25: 7:29 scope 2 { debug x => _3; // in scope 2 at $DIR/simple_option_map_e2e.rs:7:14: 7:15 scope 3 (inlined ezmap::{closure#0}) { // at $DIR/simple_option_map_e2e.rs:7:25: 7:29 debug n => _3; // in scope 3 at $DIR/simple_option_map_e2e.rs:+1:13: +1:14 } } } bb0: { _2 = discriminant(_1); // scope 1 at $DIR/simple_option_map_e2e.rs:6:11: 6:14 switchInt(move _2) -> [0: bb1, 1: bb3, otherwise: bb2]; // scope 1 at $DIR/simple_option_map_e2e.rs:6:5: 6:14 } bb1: { _0 = Option::::None; // scope 1 at $DIR/simple_option_map_e2e.rs:8:17: 8:21 return; // scope 1 at $DIR/simple_option_map_e2e.rs:8:17: 8:21 } bb2: { unreachable; // scope 1 at $DIR/simple_option_map_e2e.rs:6:11: 6:14 } bb3: { _3 = ((_1 as Some).0: i32); // scope 1 at $DIR/simple_option_map_e2e.rs:7:14: 7:15 StorageLive(_4); // scope 2 at $DIR/simple_option_map_e2e.rs:7:25: 7:29 _4 = Add(_3, const 1_i32); // scope 3 at $DIR/simple_option_map_e2e.rs:+1:16: +1:21 _0 = Option::::Some(move _4); // scope 2 at $DIR/simple_option_map_e2e.rs:7:20: 7:30 StorageDead(_4); // scope 2 at $DIR/simple_option_map_e2e.rs:7:29: 7:30 return; // scope 1 at $DIR/simple_option_map_e2e.rs:10:1: 10:2 } }