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