20 lines
516 B
Rust
20 lines
516 B
Rust
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#![feature(coverage_attribute, noop_waker)]
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//@ edition: 2021
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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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/// Dummy "executor" that just repeatedly polls a future until it's ready.
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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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