rust-lang/rust
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

new trait alias tests

Browse Source 
Co-authored-by: Alexander Regueiro <alexreg@me.com>
This commit is contained in:
Niko Matsakis
2019-01-10 16:56:05 -05:00
parent 1336b8e8c7
commit b411994b3b
6 changed files with 122 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
src/test/ui/lint/lint-incoherent-auto-trait-objects.rs Normal file
View File

@@ -0,0 +1,21 @@
// ignore-tidy-linelength
trait Foo {}
impl Foo for dyn Send {}
impl Foo for dyn Send + Send {}
//~^ ERROR conflicting implementations
//~| hard error
impl Foo for dyn Send + Sync {}
impl Foo for dyn Sync + Send {}
//~^ ERROR conflicting implementations
//~| hard error
impl Foo for dyn Send + Sync + Send {}
//~^ ERROR conflicting implementations
//~| hard error
fn main() {}

39
src/test/ui/lint/lint-incoherent-auto-trait-objects.stderr Normal file
View File

@@ -0,0 +1,39 @@
error: conflicting implementations of trait `Foo` for type `(dyn std::marker::Send + 'static)`: (E0119)
--> $DIR/lint-incoherent-auto-trait-objects.rs:7:1
|
LL | impl Foo for dyn Send {}
| --------------------- first implementation here
LL |
LL | impl Foo for dyn Send + Send {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(dyn std::marker::Send + 'static)`
|
= note: #[deny(order_dependent_trait_objects)] on by default
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #56484 <https://github.com/rust-lang/rust/issues/56484>
error: conflicting implementations of trait `Foo` for type `(dyn std::marker::Send + std::marker::Sync + 'static)`: (E0119)
--> $DIR/lint-incoherent-auto-trait-objects.rs:13:1
|
LL | impl Foo for dyn Send + Sync {}
| ---------------------------- first implementation here
LL |
LL | impl Foo for dyn Sync + Send {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(dyn std::marker::Send + std::marker::Sync + 'static)`
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #56484 <https://github.com/rust-lang/rust/issues/56484>
error: conflicting implementations of trait `Foo` for type `(dyn std::marker::Send + std::marker::Sync + 'static)`: (E0119)
--> $DIR/lint-incoherent-auto-trait-objects.rs:17:1
|
LL | impl Foo for dyn Sync + Send {}
| ---------------------------- first implementation here
...
LL | impl Foo for dyn Send + Sync + Send {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(dyn std::marker::Send + std::marker::Sync + 'static)`
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #56484 <https://github.com/rust-lang/rust/issues/56484>
error: aborting due to 3 previous errors