diff options
Diffstat (limited to 'src/test/ui/impl-trait/object-unsafe-trait-in-return-position-impl-trait.rs')
-rw-r--r-- | src/test/ui/impl-trait/object-unsafe-trait-in-return-position-impl-trait.rs | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/test/ui/impl-trait/object-unsafe-trait-in-return-position-impl-trait.rs b/src/test/ui/impl-trait/object-unsafe-trait-in-return-position-impl-trait.rs new file mode 100644 index 000000000..503515013 --- /dev/null +++ b/src/test/ui/impl-trait/object-unsafe-trait-in-return-position-impl-trait.rs @@ -0,0 +1,46 @@ +trait NotObjectSafe { + fn foo() -> Self; +} + +trait ObjectSafe { + fn bar(&self); +} + +struct A; +struct B; + +impl NotObjectSafe for A { + fn foo() -> Self { + A + } +} + +impl NotObjectSafe for B { + fn foo() -> Self { + B + } +} + +impl ObjectSafe for A { + fn bar(&self) {} +} + +impl ObjectSafe for B { + fn bar(&self) {} +} + +fn can() -> impl NotObjectSafe { + if true { + return A; + } + B //~ ERROR mismatched types +} + +fn cat() -> impl ObjectSafe { + if true { + return A; + } + B //~ ERROR mismatched types +} + +fn main() {} |