diff options
Diffstat (limited to 'src/test/ui/traits/safety-trait-impl.rs')
-rw-r--r-- | src/test/ui/traits/safety-trait-impl.rs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/test/ui/traits/safety-trait-impl.rs b/src/test/ui/traits/safety-trait-impl.rs new file mode 100644 index 000000000..45258b78d --- /dev/null +++ b/src/test/ui/traits/safety-trait-impl.rs @@ -0,0 +1,18 @@ +// 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() { } |