120 lines
3.1 KiB
Rust
120 lines
3.1 KiB
Rust
// MIR for `mapped` after PreCodegen
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fn mapped(_1: impl Iterator<Item = T>, _2: impl Fn(T) -> U) -> () {
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debug iter => _1;
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debug f => _2;
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let mut _0: ();
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let mut _3: std::iter::Map<impl Iterator<Item = T>, impl Fn(T) -> U>;
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let mut _4: std::iter::Map<impl Iterator<Item = T>, impl Fn(T) -> U>;
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let mut _5: &mut std::iter::Map<impl Iterator<Item = T>, impl Fn(T) -> U>;
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let mut _13: std::option::Option<U>;
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let _15: ();
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scope 1 {
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debug iter => _4;
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let _14: U;
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scope 2 {
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debug x => _14;
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}
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scope 4 (inlined <Map<impl Iterator<Item = T>, impl Fn(T) -> U> as Iterator>::next) {
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debug self => _5;
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let mut _6: &mut impl Iterator<Item = T>;
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let mut _7: std::option::Option<T>;
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let mut _8: &mut impl Fn(T) -> U;
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scope 5 (inlined Option::<T>::map::<U, &mut impl Fn(T) -> U>) {
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debug self => _7;
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debug f => _8;
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let mut _9: isize;
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let _10: T;
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let mut _11: (T,);
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let mut _12: U;
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scope 6 {
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debug x => _10;
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}
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}
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}
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}
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scope 3 (inlined <Map<impl Iterator<Item = T>, impl Fn(T) -> U> as IntoIterator>::into_iter) {
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debug self => _3;
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}
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bb0: {
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_3 = <impl Iterator<Item = T> as Iterator>::map::<U, impl Fn(T) -> U>(move _1, move _2) -> [return: bb1, unwind continue];
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}
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bb1: {
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StorageLive(_4);
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_4 = copy _3;
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goto -> bb2;
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}
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bb2: {
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StorageLive(_13);
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_5 = &mut _4;
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StorageLive(_8);
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StorageLive(_7);
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StorageLive(_6);
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_6 = &mut (_4.0: impl Iterator<Item = T>);
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_7 = <impl Iterator<Item = T> as Iterator>::next(move _6) -> [return: bb3, unwind: bb10];
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}
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bb3: {
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StorageDead(_6);
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_8 = &mut (_4.1: impl Fn(T) -> U);
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StorageLive(_9);
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StorageLive(_10);
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_9 = discriminant(_7);
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switchInt(move _9) -> [0: bb4, 1: bb6, otherwise: bb9];
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}
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bb4: {
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StorageDead(_10);
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StorageDead(_9);
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StorageDead(_7);
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StorageDead(_8);
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StorageDead(_13);
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drop(_4) -> [return: bb5, unwind continue];
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}
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bb5: {
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StorageDead(_4);
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return;
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}
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bb6: {
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_10 = move ((_7 as Some).0: T);
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StorageLive(_12);
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StorageLive(_11);
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_11 = (copy _10,);
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_12 = <&mut impl Fn(T) -> U as FnOnce<(T,)>>::call_once(move _8, move _11) -> [return: bb7, unwind: bb10];
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}
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bb7: {
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StorageDead(_11);
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_13 = Option::<U>::Some(move _12);
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StorageDead(_12);
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StorageDead(_10);
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StorageDead(_9);
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StorageDead(_7);
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StorageDead(_8);
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_14 = move ((_13 as Some).0: U);
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_15 = opaque::<U>(move _14) -> [return: bb8, unwind: bb10];
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}
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bb8: {
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StorageDead(_13);
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goto -> bb2;
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}
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bb9: {
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unreachable;
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}
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bb10 (cleanup): {
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drop(_4) -> [return: bb11, unwind terminate(cleanup)];
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}
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bb11 (cleanup): {
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resume;
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}
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}
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