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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/typeck/typeck-default-trait-impl-negation-sync.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/test/ui/typeck/typeck-default-trait-impl-negation-sync.rs | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/test/ui/typeck/typeck-default-trait-impl-negation-sync.rs b/src/test/ui/typeck/typeck-default-trait-impl-negation-sync.rs new file mode 100644 index 000000000..b9042188a --- /dev/null +++ b/src/test/ui/typeck/typeck-default-trait-impl-negation-sync.rs @@ -0,0 +1,41 @@ +#![feature(negative_impls)] + +struct Managed; +impl !Send for Managed {} +impl !Sync for Managed {} + +use std::cell::UnsafeCell; + +struct MySync { + t: *mut u8 +} + +unsafe impl Sync for MySync {} + +struct MyNotSync { + t: *mut u8 +} + +impl !Sync for MyNotSync {} + +struct MyTypeWUnsafe { + t: UnsafeCell<u8> +} + +struct MyTypeManaged { + t: Managed +} + +fn is_sync<T: Sync>() {} + +fn main() { + is_sync::<MySync>(); + is_sync::<MyNotSync>(); + //~^ ERROR `MyNotSync` cannot be shared between threads safely [E0277] + + is_sync::<MyTypeWUnsafe>(); + //~^ ERROR `UnsafeCell<u8>` cannot be shared between threads safely [E0277] + + is_sync::<MyTypeManaged>(); + //~^ ERROR `Managed` cannot be shared between threads safely [E0277] +} |