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// MIR for `mapped` after PreCodegen
fn mapped(_1: impl Iterator<Item = T>, _2: impl Fn(T) -> U) -> () {
debug iter => _1;
debug f => _2;
let mut _0: ();
let mut _3: std::iter::Map<impl Iterator<Item = T>, impl Fn(T) -> U>;
let mut _4: std::iter::Map<impl Iterator<Item = T>, impl Fn(T) -> U>;
let mut _5: std::iter::Map<impl Iterator<Item = T>, impl Fn(T) -> U>;
let mut _6: &mut std::iter::Map<impl Iterator<Item = T>, impl Fn(T) -> U>;
let mut _7: std::option::Option<U>;
let mut _8: isize;
let _10: ();
scope 1 {
debug iter => _5;
let _9: U;
scope 2 {
debug x => _9;
}
}
scope 3 (inlined <Map<impl Iterator<Item = T>, impl Fn(T) -> U> as IntoIterator>::into_iter) {
debug self => _3;
}
bb0: {
StorageLive(_4);
StorageLive(_3);
_3 = <impl Iterator<Item = T> as Iterator>::map::<U, impl Fn(T) -> U>(move _1, move _2) -> [return: bb1, unwind continue];
}
bb1: {
_4 = move _3;
StorageDead(_3);
StorageLive(_5);
_5 = move _4;
goto -> bb2;
}
bb2: {
StorageLive(_7);
StorageLive(_6);
_6 = &mut _5;
_7 = <Map<impl Iterator<Item = T>, impl Fn(T) -> U> as Iterator>::next(move _6) -> [return: bb3, unwind: bb9];
}
bb3: {
StorageDead(_6);
_8 = discriminant(_7);
switchInt(move _8) -> [0: bb4, 1: bb6, otherwise: bb8];
}
bb4: {
StorageDead(_7);
drop(_5) -> [return: bb5, unwind continue];
}
bb5: {
StorageDead(_5);
StorageDead(_4);
return;
}
bb6: {
_9 = move ((_7 as Some).0: U);
_10 = opaque::<U>(move _9) -> [return: bb7, unwind: bb9];
}
bb7: {
StorageDead(_7);
goto -> bb2;
}
bb8: {
unreachable;
}
bb9 (cleanup): {
drop(_5) -> [return: bb10, unwind terminate];
}
bb10 (cleanup): {
resume;
}
}
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