c48cdfe8ee
`Waker::noop()` now returns a `&'static Waker` reference, so it can be passed directly to `Context` creation with no temporary lifetime issue.
54 lines
1.8 KiB
Plaintext
54 lines
1.8 KiB
Plaintext
LL| |#![feature(coverage_attribute)]
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LL| |#![feature(noop_waker)]
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LL| |// edition: 2018
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LL| |
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LL| 1|fn non_async_func() {
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LL| 1| println!("non_async_func was covered");
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LL| 1| let b = true;
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LL| 1| if b {
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LL| 1| println!("non_async_func println in block");
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LL| 1| }
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^0
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LL| 1|}
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LL| |
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LL| 1|async fn async_func() {
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LL| 1| println!("async_func was covered");
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LL| 1| let b = true;
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LL| 1| if b {
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LL| 1| println!("async_func println in block");
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LL| 1| }
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^0
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LL| 1|}
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LL| |
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LL| 1|async fn async_func_just_println() {
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LL| 1| println!("async_func_just_println was covered");
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LL| 1|}
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LL| |
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LL| 1|fn main() {
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LL| 1| println!("codecovsample::main");
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LL| 1|
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LL| 1| non_async_func();
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LL| 1|
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LL| 1| executor::block_on(async_func());
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LL| 1| executor::block_on(async_func_just_println());
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LL| 1|}
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LL| |
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LL| |mod executor {
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LL| | use core::future::Future;
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LL| | use core::pin::pin;
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LL| | use core::task::{Context, Poll, Waker};
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LL| |
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LL| | #[coverage(off)]
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LL| | pub fn block_on<F: Future>(mut future: F) -> F::Output {
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LL| | let mut future = pin!(future);
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LL| | let mut context = Context::from_waker(Waker::noop());
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LL| |
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LL| | loop {
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LL| | if let Poll::Ready(val) = future.as_mut().poll(&mut context) {
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LL| | break val;
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LL| | }
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LL| | }
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LL| | }
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LL| |}
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