mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-01 06:51:58 +00:00
21 lines
747 B
Rust
21 lines
747 B
Rust
// Test that Fn-family traits with lifetime parameters shouldn't compile and
|
|
// we suggest the usage of higher-rank trait bounds instead.
|
|
|
|
fn fa(_: impl Fn<'a>(&'a str) -> bool) {}
|
|
//~^ ERROR `Fn` traits cannot take lifetime parameters
|
|
|
|
fn fb(_: impl FnMut<'a, 'b>(&'a str, &'b str) -> bool) {}
|
|
//~^ ERROR `Fn` traits cannot take lifetime parameters
|
|
|
|
fn fc(_: impl std::fmt::Display + FnOnce<'a>(&'a str) -> bool + std::fmt::Debug) {}
|
|
//~^ ERROR `Fn` traits cannot take lifetime parameters
|
|
|
|
use std::ops::Fn as AliasedFn;
|
|
fn fd(_: impl AliasedFn<'a>(&'a str) -> bool) {}
|
|
//~^ ERROR `Fn` traits cannot take lifetime parameters
|
|
|
|
fn fe<F>(_: F) where F: Fn<'a>(&'a str) -> bool {}
|
|
//~^ ERROR `Fn` traits cannot take lifetime parameters
|
|
|
|
fn main() {}
|