summaryrefslogtreecommitdiffstats
path: root/tests/ui/traits/safety-trait-impl.rs
blob: 45258b78d01d5dfb3b8eaedb1046935e6d0c0dc4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
// Check that unsafe traits require unsafe impls and that inherent
// impls cannot be unsafe.

trait SafeTrait {
    fn foo(&self) { }
}

unsafe trait UnsafeTrait {
    fn foo(&self) { }
}

unsafe impl UnsafeTrait for u8 { } // OK

impl UnsafeTrait for u16 { } //~ ERROR requires an `unsafe impl` declaration

unsafe impl SafeTrait for u32 { } //~ ERROR the trait `SafeTrait` is not unsafe

fn main() { }