69 lines
1.0 KiB
Rust
69 lines
1.0 KiB
Rust
#![warn(clippy::unused_async)]
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use std::future::Future;
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use std::pin::Pin;
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mod issue10800 {
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#![allow(dead_code, unused_must_use, clippy::no_effect)]
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use std::future::ready;
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async fn async_block_await() {
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async {
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ready(()).await;
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};
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}
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async fn normal_block_await() {
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{
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{
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ready(()).await;
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}
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}
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}
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}
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async fn foo() -> i32 {
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4
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}
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async fn bar() -> i32 {
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foo().await
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}
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struct S;
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impl S {
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async fn unused(&self) -> i32 {
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1
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}
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async fn used(&self) -> i32 {
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self.unused().await
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}
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}
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trait AsyncTrait {
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fn trait_method() -> Pin<Box<dyn Future<Output = i32>>>;
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}
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macro_rules! async_trait_impl {
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() => {
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impl AsyncTrait for S {
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fn trait_method() -> Pin<Box<dyn Future<Output = i32>>> {
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async fn unused() -> i32 {
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5
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}
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Box::pin(unused())
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}
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}
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};
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}
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async_trait_impl!();
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fn main() {
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foo();
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bar();
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}
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