mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-23 23:34:48 +00:00
40 lines
1.1 KiB
Rust
40 lines
1.1 KiB
Rust
// Check "unused_lifetimes" lint on both async and sync functions
|
|
// Both cases should be diagnosed the same way.
|
|
|
|
//@ edition:2018
|
|
|
|
#![deny(unused_lifetimes)]
|
|
|
|
async fn async_wrong_without_args<'a>() {} //~ ERROR lifetime parameter `'a` never used
|
|
|
|
async fn async_wrong_1_lifetime<'a>(_: &i32) {} //~ ERROR lifetime parameter `'a` never used
|
|
|
|
async fn async_wrong_2_lifetimes<'a, 'b>(_: &'a i32, _: &i32) {} //~ ERROR lifetime parameter `'b` never used
|
|
|
|
async fn async_right_1_lifetime<'a>(_: &'a i32) {}
|
|
|
|
async fn async_right_2_lifetimes<'a, 'b>(_: &'a i32, _: &'b i32) {}
|
|
|
|
async fn async_right_trait_bound_lifetime<'a, I>(_: I)
|
|
where
|
|
I: Iterator<Item = &'a i32>
|
|
{}
|
|
|
|
fn wrong_without_args<'a>() {} //~ ERROR lifetime parameter `'a` never used
|
|
|
|
fn wrong_1_lifetime<'a>(_: &i32) {} //~ ERROR lifetime parameter `'a` never used
|
|
|
|
fn wrong_2_lifetimes<'a, 'b>(_: &'a i32, _: &i32) {} //~ ERROR lifetime parameter `'b` never used
|
|
|
|
fn right_1_lifetime<'a>(_: &'a i32) {}
|
|
|
|
fn right_2_lifetimes<'a, 'b>(_: &'a i32, _: &'b i32) {}
|
|
|
|
fn right_trait_bound_lifetime<'a, I>(_: I)
|
|
where
|
|
I: Iterator<Item = &'a i32>
|
|
{}
|
|
|
|
|
|
fn main() {}
|