344 lines
22 KiB
Rust
344 lines
22 KiB
Rust
// MIR for `b::{closure#0}` 0 generator_resume
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/* generator_layout = GeneratorLayout {
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field_tys: {
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_0: GeneratorSavedTy {
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ty: impl std::future::Future<Output = ()>,
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source_info: SourceInfo {
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span: $DIR/async_await.rs:15:8: 15:14 (#8),
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scope: scope[0],
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},
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ignore_for_traits: false,
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},
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_1: GeneratorSavedTy {
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ty: impl std::future::Future<Output = ()>,
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source_info: SourceInfo {
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span: $DIR/async_await.rs:16:8: 16:14 (#11),
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scope: scope[0],
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},
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ignore_for_traits: false,
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},
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},
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variant_fields: {
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Unresumed(0): [],
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Returned (1): [],
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Panicked (2): [],
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Suspend0 (3): [_0],
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Suspend1 (4): [_1],
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},
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storage_conflicts: BitMatrix(2x2) {
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(_0, _0),
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(_1, _1),
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},
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} */
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fn b::{closure#0}(_1: Pin<&mut [async fn body@$DIR/async_await.rs:14:18: 17:2]>, _2: &mut Context<'_>) -> Poll<()> {
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debug _task_context => _38; // in scope 0 at $DIR/async_await.rs:+0:18: +3:2
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let mut _0: std::task::Poll<()>; // return place in scope 0 at $DIR/async_await.rs:+0:18: +3:2
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let _3: (); // in scope 0 at $DIR/async_await.rs:+1:5: +1:14
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let mut _4: impl std::future::Future<Output = ()>; // in scope 0 at $DIR/async_await.rs:+1:8: +1:14
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let mut _5: impl std::future::Future<Output = ()>; // in scope 0 at $DIR/async_await.rs:+1:5: +1:8
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let mut _6: impl std::future::Future<Output = ()>; // in scope 0 at $DIR/async_await.rs:+1:8: +1:14
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let mut _7: (); // in scope 0 at $DIR/async_await.rs:+0:18: +3:2
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let _8: (); // in scope 0 at $DIR/async_await.rs:+1:8: +1:14
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let mut _9: std::task::Poll<()>; // in scope 0 at $DIR/async_await.rs:+1:8: +1:14
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let mut _10: std::pin::Pin<&mut impl std::future::Future<Output = ()>>; // in scope 0 at $DIR/async_await.rs:+1:8: +1:14
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let mut _11: &mut impl std::future::Future<Output = ()>; // in scope 0 at $DIR/async_await.rs:+1:8: +1:14
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let mut _12: &mut impl std::future::Future<Output = ()>; // in scope 0 at $DIR/async_await.rs:+1:8: +1:14
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let mut _13: &mut std::task::Context<'_>; // in scope 0 at $DIR/async_await.rs:+1:5: +1:14
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let mut _14: &mut std::task::Context<'_>; // in scope 0 at $DIR/async_await.rs:+1:5: +1:14
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let mut _15: &mut std::task::Context<'_>; // in scope 0 at $DIR/async_await.rs:+1:8: +1:14
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let mut _16: isize; // in scope 0 at $DIR/async_await.rs:+1:8: +1:14
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let mut _18: !; // in scope 0 at $DIR/async_await.rs:+1:5: +1:14
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let mut _19: &mut std::task::Context<'_>; // in scope 0 at $DIR/async_await.rs:+1:8: +1:14
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let mut _20: (); // in scope 0 at $DIR/async_await.rs:+1:8: +1:14
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let mut _21: impl std::future::Future<Output = ()>; // in scope 0 at $DIR/async_await.rs:+2:8: +2:14
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let mut _22: impl std::future::Future<Output = ()>; // in scope 0 at $DIR/async_await.rs:+2:5: +2:8
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let mut _23: impl std::future::Future<Output = ()>; // in scope 0 at $DIR/async_await.rs:+2:8: +2:14
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let _24: (); // in scope 0 at $DIR/async_await.rs:+2:8: +2:14
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let mut _25: std::task::Poll<()>; // in scope 0 at $DIR/async_await.rs:+2:8: +2:14
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let mut _26: std::pin::Pin<&mut impl std::future::Future<Output = ()>>; // in scope 0 at $DIR/async_await.rs:+2:8: +2:14
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let mut _27: &mut impl std::future::Future<Output = ()>; // in scope 0 at $DIR/async_await.rs:+2:8: +2:14
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let mut _28: &mut impl std::future::Future<Output = ()>; // in scope 0 at $DIR/async_await.rs:+2:8: +2:14
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let mut _29: &mut std::task::Context<'_>; // in scope 0 at $DIR/async_await.rs:+2:5: +2:14
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let mut _30: &mut std::task::Context<'_>; // in scope 0 at $DIR/async_await.rs:+2:5: +2:14
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let mut _31: &mut std::task::Context<'_>; // in scope 0 at $DIR/async_await.rs:+2:8: +2:14
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let mut _32: isize; // in scope 0 at $DIR/async_await.rs:+2:8: +2:14
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let mut _34: !; // in scope 0 at $DIR/async_await.rs:+2:5: +2:14
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let mut _35: &mut std::task::Context<'_>; // in scope 0 at $DIR/async_await.rs:+2:8: +2:14
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let mut _36: (); // in scope 0 at $DIR/async_await.rs:+2:8: +2:14
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let mut _37: (); // in scope 0 at $DIR/async_await.rs:+0:18: +3:2
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let mut _38: &mut std::task::Context<'_>; // in scope 0 at $DIR/async_await.rs:+0:18: +3:2
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let mut _39: u32; // in scope 0 at $DIR/async_await.rs:+0:18: +3:2
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scope 1 {
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debug __awaitee => (((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2])) as variant#3).0: impl std::future::Future<Output = ()>); // in scope 1 at $DIR/async_await.rs:+1:8: +1:14
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let _17: (); // in scope 1 at $DIR/async_await.rs:+1:5: +1:14
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scope 2 {
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}
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scope 3 {
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debug result => _17; // in scope 3 at $DIR/async_await.rs:+1:5: +1:14
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}
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}
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scope 4 {
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debug __awaitee => (((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2])) as variant#4).0: impl std::future::Future<Output = ()>); // in scope 4 at $DIR/async_await.rs:+2:8: +2:14
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let _33: (); // in scope 4 at $DIR/async_await.rs:+2:5: +2:14
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scope 5 {
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}
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scope 6 {
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debug result => _33; // in scope 6 at $DIR/async_await.rs:+2:5: +2:14
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}
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}
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bb0: {
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_39 = discriminant((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2]))); // scope 0 at $DIR/async_await.rs:+0:18: +3:2
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switchInt(move _39) -> [0: bb1, 1: bb28, 3: bb26, 4: bb27, otherwise: bb29]; // scope 0 at $DIR/async_await.rs:+0:18: +3:2
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}
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bb1: {
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_38 = move _2; // scope 0 at $DIR/async_await.rs:+0:18: +3:2
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StorageLive(_3); // scope 0 at $DIR/async_await.rs:+1:5: +1:14
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StorageLive(_4); // scope 0 at $DIR/async_await.rs:+1:8: +1:14
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StorageLive(_5); // scope 0 at $DIR/async_await.rs:+1:5: +1:8
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_5 = a() -> [return: bb2, unwind unreachable]; // scope 0 at $DIR/async_await.rs:+1:5: +1:8
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// mir::Constant
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// + span: $DIR/async_await.rs:15:5: 15:6
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// + literal: Const { ty: fn() -> impl Future<Output = ()> {a}, val: Value(<ZST>) }
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}
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bb2: {
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_4 = <impl Future<Output = ()> as IntoFuture>::into_future(move _5) -> [return: bb3, unwind unreachable]; // scope 0 at $DIR/async_await.rs:+1:8: +1:14
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// mir::Constant
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// + span: $DIR/async_await.rs:15:8: 15:14
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// + literal: Const { ty: fn(impl Future<Output = ()>) -> <impl Future<Output = ()> as IntoFuture>::IntoFuture {<impl Future<Output = ()> as IntoFuture>::into_future}, val: Value(<ZST>) }
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}
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bb3: {
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StorageDead(_5); // scope 0 at $DIR/async_await.rs:+1:13: +1:14
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nop; // scope 0 at $DIR/async_await.rs:+1:8: +1:14
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(((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2])) as variant#3).0: impl std::future::Future<Output = ()>) = move _4; // scope 0 at $DIR/async_await.rs:+1:8: +1:14
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goto -> bb4; // scope 1 at $DIR/async_await.rs:+1:8: +1:14
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}
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bb4: {
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StorageLive(_8); // scope 1 at $DIR/async_await.rs:+1:8: +1:14
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StorageLive(_9); // scope 1 at $DIR/async_await.rs:+1:8: +1:14
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StorageLive(_10); // scope 2 at $DIR/async_await.rs:+1:8: +1:14
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StorageLive(_11); // scope 2 at $DIR/async_await.rs:+1:8: +1:14
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StorageLive(_12); // scope 2 at $DIR/async_await.rs:+1:8: +1:14
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_12 = &mut (((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2])) as variant#3).0: impl std::future::Future<Output = ()>); // scope 2 at $DIR/async_await.rs:+1:8: +1:14
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_11 = &mut (*_12); // scope 2 at $DIR/async_await.rs:+1:8: +1:14
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_10 = Pin::<&mut impl Future<Output = ()>>::new_unchecked(move _11) -> [return: bb5, unwind unreachable]; // scope 2 at $DIR/async_await.rs:+1:8: +1:14
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// mir::Constant
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// + span: $DIR/async_await.rs:15:8: 15:14
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// + literal: Const { ty: unsafe fn(&mut impl Future<Output = ()>) -> Pin<&mut impl Future<Output = ()>> {Pin::<&mut impl Future<Output = ()>>::new_unchecked}, val: Value(<ZST>) }
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}
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bb5: {
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StorageDead(_11); // scope 2 at $DIR/async_await.rs:+1:13: +1:14
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StorageLive(_13); // scope 2 at $DIR/async_await.rs:+1:5: +1:14
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StorageLive(_14); // scope 2 at $DIR/async_await.rs:+1:5: +1:14
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StorageLive(_15); // scope 2 at $DIR/async_await.rs:+1:8: +1:14
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_15 = _38; // scope 2 at $DIR/async_await.rs:+1:8: +1:14
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_14 = move _15; // scope 2 at $DIR/async_await.rs:+1:5: +1:14
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goto -> bb6; // scope 2 at $DIR/async_await.rs:+1:5: +1:14
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}
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bb6: {
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_13 = &mut (*_14); // scope 2 at $DIR/async_await.rs:+1:5: +1:14
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StorageDead(_15); // scope 2 at $DIR/async_await.rs:+1:13: +1:14
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_9 = <impl Future<Output = ()> as Future>::poll(move _10, move _13) -> [return: bb7, unwind unreachable]; // scope 2 at $DIR/async_await.rs:+1:8: +1:14
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// mir::Constant
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// + span: $DIR/async_await.rs:15:8: 15:14
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// + literal: Const { ty: for<'a, 'b, 'c> fn(Pin<&'a mut impl Future<Output = ()>>, &'b mut Context<'c>) -> Poll<<impl Future<Output = ()> as Future>::Output> {<impl Future<Output = ()> as Future>::poll}, val: Value(<ZST>) }
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}
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bb7: {
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StorageDead(_13); // scope 2 at $DIR/async_await.rs:+1:13: +1:14
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StorageDead(_10); // scope 2 at $DIR/async_await.rs:+1:13: +1:14
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_16 = discriminant(_9); // scope 1 at $DIR/async_await.rs:+1:8: +1:14
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switchInt(move _16) -> [0: bb10, 1: bb8, otherwise: bb9]; // scope 1 at $DIR/async_await.rs:+1:8: +1:14
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}
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bb8: {
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_8 = const (); // scope 1 at $DIR/async_await.rs:+1:8: +1:14
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StorageDead(_14); // scope 1 at $DIR/async_await.rs:+1:13: +1:14
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StorageDead(_12); // scope 1 at $DIR/async_await.rs:+1:13: +1:14
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StorageDead(_9); // scope 1 at $DIR/async_await.rs:+1:13: +1:14
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StorageDead(_8); // scope 1 at $DIR/async_await.rs:+1:13: +1:14
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StorageLive(_19); // scope 1 at $DIR/async_await.rs:+1:8: +1:14
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StorageLive(_20); // scope 1 at $DIR/async_await.rs:+1:8: +1:14
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_20 = (); // scope 1 at $DIR/async_await.rs:+1:8: +1:14
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_0 = Poll::<()>::Pending; // scope 1 at $DIR/async_await.rs:+1:8: +1:14
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discriminant((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2]))) = 3; // scope 1 at $DIR/async_await.rs:+1:8: +1:14
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return; // scope 1 at $DIR/async_await.rs:+1:8: +1:14
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}
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bb9: {
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unreachable; // scope 1 at $DIR/async_await.rs:+1:8: +1:14
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}
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bb10: {
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StorageLive(_17); // scope 1 at $DIR/async_await.rs:+1:5: +1:14
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_17 = ((_9 as Ready).0: ()); // scope 1 at $DIR/async_await.rs:+1:5: +1:14
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_3 = _17; // scope 3 at $DIR/async_await.rs:+1:5: +1:14
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StorageDead(_17); // scope 1 at $DIR/async_await.rs:+1:13: +1:14
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StorageDead(_14); // scope 1 at $DIR/async_await.rs:+1:13: +1:14
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StorageDead(_12); // scope 1 at $DIR/async_await.rs:+1:13: +1:14
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StorageDead(_9); // scope 1 at $DIR/async_await.rs:+1:13: +1:14
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StorageDead(_8); // scope 1 at $DIR/async_await.rs:+1:13: +1:14
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goto -> bb12; // scope 0 at $DIR/async_await.rs:+1:13: +1:14
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}
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bb11: {
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StorageDead(_20); // scope 1 at $DIR/async_await.rs:+1:13: +1:14
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_38 = move _19; // scope 1 at $DIR/async_await.rs:+1:8: +1:14
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StorageDead(_19); // scope 1 at $DIR/async_await.rs:+1:13: +1:14
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_7 = const (); // scope 1 at $DIR/async_await.rs:+1:8: +1:14
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goto -> bb4; // scope 1 at $DIR/async_await.rs:+1:8: +1:14
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}
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bb12: {
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nop; // scope 0 at $DIR/async_await.rs:+1:13: +1:14
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goto -> bb13; // scope 0 at $DIR/async_await.rs:+1:14: +1:15
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}
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bb13: {
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StorageDead(_4); // scope 0 at $DIR/async_await.rs:+1:14: +1:15
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StorageDead(_3); // scope 0 at $DIR/async_await.rs:+1:14: +1:15
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StorageLive(_21); // scope 0 at $DIR/async_await.rs:+2:8: +2:14
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StorageLive(_22); // scope 0 at $DIR/async_await.rs:+2:5: +2:8
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_22 = a() -> [return: bb14, unwind unreachable]; // scope 0 at $DIR/async_await.rs:+2:5: +2:8
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// mir::Constant
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// + span: $DIR/async_await.rs:16:5: 16:6
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// + literal: Const { ty: fn() -> impl Future<Output = ()> {a}, val: Value(<ZST>) }
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}
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bb14: {
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_21 = <impl Future<Output = ()> as IntoFuture>::into_future(move _22) -> [return: bb15, unwind unreachable]; // scope 0 at $DIR/async_await.rs:+2:8: +2:14
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// mir::Constant
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// + span: $DIR/async_await.rs:16:8: 16:14
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// + literal: Const { ty: fn(impl Future<Output = ()>) -> <impl Future<Output = ()> as IntoFuture>::IntoFuture {<impl Future<Output = ()> as IntoFuture>::into_future}, val: Value(<ZST>) }
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}
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bb15: {
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StorageDead(_22); // scope 0 at $DIR/async_await.rs:+2:13: +2:14
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nop; // scope 0 at $DIR/async_await.rs:+2:8: +2:14
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(((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2])) as variant#4).0: impl std::future::Future<Output = ()>) = move _21; // scope 0 at $DIR/async_await.rs:+2:8: +2:14
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goto -> bb16; // scope 4 at $DIR/async_await.rs:+2:8: +2:14
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}
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bb16: {
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StorageLive(_24); // scope 4 at $DIR/async_await.rs:+2:8: +2:14
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StorageLive(_25); // scope 4 at $DIR/async_await.rs:+2:8: +2:14
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StorageLive(_26); // scope 5 at $DIR/async_await.rs:+2:8: +2:14
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StorageLive(_27); // scope 5 at $DIR/async_await.rs:+2:8: +2:14
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StorageLive(_28); // scope 5 at $DIR/async_await.rs:+2:8: +2:14
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_28 = &mut (((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2])) as variant#4).0: impl std::future::Future<Output = ()>); // scope 5 at $DIR/async_await.rs:+2:8: +2:14
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_27 = &mut (*_28); // scope 5 at $DIR/async_await.rs:+2:8: +2:14
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_26 = Pin::<&mut impl Future<Output = ()>>::new_unchecked(move _27) -> [return: bb17, unwind unreachable]; // scope 5 at $DIR/async_await.rs:+2:8: +2:14
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// mir::Constant
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// + span: $DIR/async_await.rs:16:8: 16:14
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// + literal: Const { ty: unsafe fn(&mut impl Future<Output = ()>) -> Pin<&mut impl Future<Output = ()>> {Pin::<&mut impl Future<Output = ()>>::new_unchecked}, val: Value(<ZST>) }
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}
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bb17: {
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StorageDead(_27); // scope 5 at $DIR/async_await.rs:+2:13: +2:14
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StorageLive(_29); // scope 5 at $DIR/async_await.rs:+2:5: +2:14
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StorageLive(_30); // scope 5 at $DIR/async_await.rs:+2:5: +2:14
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StorageLive(_31); // scope 5 at $DIR/async_await.rs:+2:8: +2:14
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_31 = _38; // scope 5 at $DIR/async_await.rs:+2:8: +2:14
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_30 = move _31; // scope 5 at $DIR/async_await.rs:+2:5: +2:14
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goto -> bb18; // scope 5 at $DIR/async_await.rs:+2:5: +2:14
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}
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bb18: {
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_29 = &mut (*_30); // scope 5 at $DIR/async_await.rs:+2:5: +2:14
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StorageDead(_31); // scope 5 at $DIR/async_await.rs:+2:13: +2:14
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_25 = <impl Future<Output = ()> as Future>::poll(move _26, move _29) -> [return: bb19, unwind unreachable]; // scope 5 at $DIR/async_await.rs:+2:8: +2:14
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// mir::Constant
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// + span: $DIR/async_await.rs:16:8: 16:14
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// + literal: Const { ty: for<'a, 'b, 'c> fn(Pin<&'a mut impl Future<Output = ()>>, &'b mut Context<'c>) -> Poll<<impl Future<Output = ()> as Future>::Output> {<impl Future<Output = ()> as Future>::poll}, val: Value(<ZST>) }
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}
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bb19: {
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StorageDead(_29); // scope 5 at $DIR/async_await.rs:+2:13: +2:14
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StorageDead(_26); // scope 5 at $DIR/async_await.rs:+2:13: +2:14
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_32 = discriminant(_25); // scope 4 at $DIR/async_await.rs:+2:8: +2:14
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switchInt(move _32) -> [0: bb21, 1: bb20, otherwise: bb9]; // scope 4 at $DIR/async_await.rs:+2:8: +2:14
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}
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bb20: {
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_24 = const (); // scope 4 at $DIR/async_await.rs:+2:8: +2:14
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StorageDead(_30); // scope 4 at $DIR/async_await.rs:+2:13: +2:14
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StorageDead(_28); // scope 4 at $DIR/async_await.rs:+2:13: +2:14
|
|
StorageDead(_25); // scope 4 at $DIR/async_await.rs:+2:13: +2:14
|
|
StorageDead(_24); // scope 4 at $DIR/async_await.rs:+2:13: +2:14
|
|
StorageLive(_35); // scope 4 at $DIR/async_await.rs:+2:8: +2:14
|
|
StorageLive(_36); // scope 4 at $DIR/async_await.rs:+2:8: +2:14
|
|
_36 = (); // scope 4 at $DIR/async_await.rs:+2:8: +2:14
|
|
_0 = Poll::<()>::Pending; // scope 4 at $DIR/async_await.rs:+2:8: +2:14
|
|
discriminant((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2]))) = 4; // scope 4 at $DIR/async_await.rs:+2:8: +2:14
|
|
return; // scope 4 at $DIR/async_await.rs:+2:8: +2:14
|
|
}
|
|
|
|
bb21: {
|
|
StorageLive(_33); // scope 4 at $DIR/async_await.rs:+2:5: +2:14
|
|
_33 = ((_25 as Ready).0: ()); // scope 4 at $DIR/async_await.rs:+2:5: +2:14
|
|
_37 = _33; // scope 6 at $DIR/async_await.rs:+2:5: +2:14
|
|
StorageDead(_33); // scope 4 at $DIR/async_await.rs:+2:13: +2:14
|
|
StorageDead(_30); // scope 4 at $DIR/async_await.rs:+2:13: +2:14
|
|
StorageDead(_28); // scope 4 at $DIR/async_await.rs:+2:13: +2:14
|
|
StorageDead(_25); // scope 4 at $DIR/async_await.rs:+2:13: +2:14
|
|
StorageDead(_24); // scope 4 at $DIR/async_await.rs:+2:13: +2:14
|
|
goto -> bb23; // scope 0 at $DIR/async_await.rs:+2:13: +2:14
|
|
}
|
|
|
|
bb22: {
|
|
StorageDead(_36); // scope 4 at $DIR/async_await.rs:+2:13: +2:14
|
|
_38 = move _35; // scope 4 at $DIR/async_await.rs:+2:8: +2:14
|
|
StorageDead(_35); // scope 4 at $DIR/async_await.rs:+2:13: +2:14
|
|
_7 = const (); // scope 4 at $DIR/async_await.rs:+2:8: +2:14
|
|
goto -> bb16; // scope 4 at $DIR/async_await.rs:+2:8: +2:14
|
|
}
|
|
|
|
bb23: {
|
|
nop; // scope 0 at $DIR/async_await.rs:+2:13: +2:14
|
|
goto -> bb24; // scope 0 at $DIR/async_await.rs:+3:1: +3:2
|
|
}
|
|
|
|
bb24: {
|
|
StorageDead(_21); // scope 0 at $DIR/async_await.rs:+3:1: +3:2
|
|
goto -> bb25; // scope 0 at $DIR/async_await.rs:+3:1: +3:2
|
|
}
|
|
|
|
bb25: {
|
|
_0 = Poll::<()>::Ready(move _37); // scope 0 at $DIR/async_await.rs:+3:2: +3:2
|
|
discriminant((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2]))) = 1; // scope 0 at $DIR/async_await.rs:+3:2: +3:2
|
|
return; // scope 0 at $DIR/async_await.rs:+3:2: +3:2
|
|
}
|
|
|
|
bb26: {
|
|
StorageLive(_3); // scope 0 at $DIR/async_await.rs:+0:18: +3:2
|
|
StorageLive(_4); // scope 0 at $DIR/async_await.rs:+0:18: +3:2
|
|
StorageLive(_19); // scope 0 at $DIR/async_await.rs:+0:18: +3:2
|
|
StorageLive(_20); // scope 0 at $DIR/async_await.rs:+0:18: +3:2
|
|
_19 = move _2; // scope 0 at $DIR/async_await.rs:+0:18: +3:2
|
|
goto -> bb11; // scope 0 at $DIR/async_await.rs:+0:18: +3:2
|
|
}
|
|
|
|
bb27: {
|
|
StorageLive(_21); // scope 0 at $DIR/async_await.rs:+0:18: +3:2
|
|
StorageLive(_35); // scope 0 at $DIR/async_await.rs:+0:18: +3:2
|
|
StorageLive(_36); // scope 0 at $DIR/async_await.rs:+0:18: +3:2
|
|
_35 = move _2; // scope 0 at $DIR/async_await.rs:+0:18: +3:2
|
|
goto -> bb22; // scope 0 at $DIR/async_await.rs:+0:18: +3:2
|
|
}
|
|
|
|
bb28: {
|
|
assert(const false, "`async fn` resumed after completion") -> bb28; // scope 0 at $DIR/async_await.rs:+0:18: +3:2
|
|
}
|
|
|
|
bb29: {
|
|
unreachable; // scope 0 at $DIR/async_await.rs:+0:18: +3:2
|
|
}
|
|
}
|