rust/tests/ui/rfcs/rfc-2396-target_feature-11/fn-traits.rs

35 lines
833 B
Rust

//@ only-x86_64
#![feature(target_feature_11)]
#[target_feature(enable = "avx")]
fn foo() {}
#[target_feature(enable = "avx")]
unsafe fn foo_unsafe() {}
fn call(f: impl Fn()) {
f()
}
fn call_mut(mut f: impl FnMut()) {
f()
}
fn call_once(f: impl FnOnce()) {
f()
}
fn main() {
call(foo); //~ ERROR expected a `Fn()` closure, found `fn() {foo}`
call_mut(foo); //~ ERROR expected a `FnMut()` closure, found `fn() {foo}`
call_once(foo); //~ ERROR expected a `FnOnce()` closure, found `fn() {foo}`
call(foo_unsafe);
//~^ ERROR expected a `Fn()` closure, found `unsafe fn() {foo_unsafe}`
call_mut(foo_unsafe);
//~^ ERROR expected a `FnMut()` closure, found `unsafe fn() {foo_unsafe}`
call_once(foo_unsafe);
//~^ ERROR expected a `FnOnce()` closure, found `unsafe fn() {foo_unsafe}`
}