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#![feature(generators)]
#![warn(clippy::large_futures)]
#![allow(clippy::never_loop)]
#![allow(clippy::future_not_send)]
#![allow(clippy::manual_async_fn)]
async fn big_fut(_arg: [u8; 1024 * 16]) {}
async fn wait() {
let f = async {
big_fut([0u8; 1024 * 16]).await;
//~^ ERROR: large future with a size of 16385 bytes
//~| NOTE: `-D clippy::large-futures` implied by `-D warnings`
};
f.await
//~^ ERROR: large future with a size of 16386 bytes
}
async fn calls_fut(fut: impl std::future::Future<Output = ()>) {
loop {
wait().await;
//~^ ERROR: large future with a size of 16387 bytes
if true {
return fut.await;
} else {
wait().await;
//~^ ERROR: large future with a size of 16387 bytes
}
}
}
pub async fn test() {
let fut = big_fut([0u8; 1024 * 16]);
foo().await;
//~^ ERROR: large future with a size of 65540 bytes
calls_fut(fut).await;
//~^ ERROR: large future with a size of 49159 bytes
}
pub fn foo() -> impl std::future::Future<Output = ()> {
async {
let x = [0i32; 1024 * 16];
async {}.await;
dbg!(x);
}
}
pub async fn lines() {
async {
//~^ ERROR: large future with a size of 65540 bytes
let x = [0i32; 1024 * 16];
async {}.await;
println!("{:?}", x);
}
.await;
}
pub async fn macro_expn() {
macro_rules! macro_ {
() => {
async {
let x = [0i32; 1024 * 16];
async {}.await;
println!("macro: {:?}", x);
}
};
}
macro_!().await
}
fn main() {}
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