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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:20:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:20:29 +0000
commit631cd5845e8de329d0e227aaa707d7ea228b8f8f (patch)
treea1b87c8f8cad01cf18f7c5f57a08f102771ed303 /tests/ui/auto-traits
parentAdding debian version 1.69.0+dfsg1-1. (diff)
downloadrustc-631cd5845e8de329d0e227aaa707d7ea228b8f8f.tar.xz
rustc-631cd5845e8de329d0e227aaa707d7ea228b8f8f.zip
Merging upstream version 1.70.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/auto-traits')
-rw-r--r--tests/ui/auto-traits/suspicious-negative-impls-lint.rs21
-rw-r--r--tests/ui/auto-traits/suspicious-negative-impls-lint.stderr52
2 files changed, 73 insertions, 0 deletions
diff --git a/tests/ui/auto-traits/suspicious-negative-impls-lint.rs b/tests/ui/auto-traits/suspicious-negative-impls-lint.rs
new file mode 100644
index 000000000..34842e594
--- /dev/null
+++ b/tests/ui/auto-traits/suspicious-negative-impls-lint.rs
@@ -0,0 +1,21 @@
+#![feature(negative_impls)]
+#![deny(suspicious_auto_trait_impls)]
+
+use std::marker::PhantomData;
+
+struct ContainsVec<T>(Vec<T>);
+impl !Send for ContainsVec<u32> {}
+//~^ ERROR
+//~| WARNING this will change its meaning
+
+pub struct WithPhantomDataSend<T, U>(PhantomData<T>, U);
+impl<T> !Send for WithPhantomDataSend<*const T, u8> {}
+//~^ ERROR
+//~| WARNING this will change its meaning
+
+pub struct WithLifetime<'a, T>(&'a (), T);
+impl<T> !Sync for WithLifetime<'static, Option<T>> {}
+//~^ ERROR
+//~| WARNING this will change its meaning
+
+fn main() {}
diff --git a/tests/ui/auto-traits/suspicious-negative-impls-lint.stderr b/tests/ui/auto-traits/suspicious-negative-impls-lint.stderr
new file mode 100644
index 000000000..ee03ea125
--- /dev/null
+++ b/tests/ui/auto-traits/suspicious-negative-impls-lint.stderr
@@ -0,0 +1,52 @@
+error: cross-crate traits with a default impl, like `Send`, should not be specialized
+ --> $DIR/suspicious-negative-impls-lint.rs:7:1
+ |
+LL | impl !Send for ContainsVec<u32> {}
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ |
+ = warning: this will change its meaning in a future release!
+ = note: for more information, see issue #93367 <https://github.com/rust-lang/rust/issues/93367>
+ = note: `u32` is not a generic parameter
+note: try using the same sequence of generic parameters as the struct definition
+ --> $DIR/suspicious-negative-impls-lint.rs:6:1
+ |
+LL | struct ContainsVec<T>(Vec<T>);
+ | ^^^^^^^^^^^^^^^^^^^^^
+note: the lint level is defined here
+ --> $DIR/suspicious-negative-impls-lint.rs:2:9
+ |
+LL | #![deny(suspicious_auto_trait_impls)]
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: cross-crate traits with a default impl, like `Send`, should not be specialized
+ --> $DIR/suspicious-negative-impls-lint.rs:12:1
+ |
+LL | impl<T> !Send for WithPhantomDataSend<*const T, u8> {}
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ |
+ = warning: this will change its meaning in a future release!
+ = note: for more information, see issue #93367 <https://github.com/rust-lang/rust/issues/93367>
+ = note: `*const T` is not a generic parameter
+note: try using the same sequence of generic parameters as the struct definition
+ --> $DIR/suspicious-negative-impls-lint.rs:11:1
+ |
+LL | pub struct WithPhantomDataSend<T, U>(PhantomData<T>, U);
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: cross-crate traits with a default impl, like `Sync`, should not be specialized
+ --> $DIR/suspicious-negative-impls-lint.rs:17:1
+ |
+LL | impl<T> !Sync for WithLifetime<'static, Option<T>> {}
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ |
+ = warning: this will change its meaning in a future release!
+ = note: for more information, see issue #93367 <https://github.com/rust-lang/rust/issues/93367>
+ = note: `Option<T>` is not a generic parameter
+note: try using the same sequence of generic parameters as the struct definition
+ --> $DIR/suspicious-negative-impls-lint.rs:16:1
+ |
+LL | pub struct WithLifetime<'a, T>(&'a (), T);
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: aborting due to 3 previous errors
+