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