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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/coherence/coherence_copy_like_err_struct.rs
parentInitial commit. (diff)
downloadrustc-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 'src/test/ui/coherence/coherence_copy_like_err_struct.rs')
-rw-r--r--src/test/ui/coherence/coherence_copy_like_err_struct.rs22
1 files changed, 22 insertions, 0 deletions
diff --git a/src/test/ui/coherence/coherence_copy_like_err_struct.rs b/src/test/ui/coherence/coherence_copy_like_err_struct.rs
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+++ b/src/test/ui/coherence/coherence_copy_like_err_struct.rs
@@ -0,0 +1,22 @@
+// aux-build:coherence_copy_like_lib.rs
+
+// Test that we are able to introduce a negative constraint that
+// `MyType: !MyTrait` along with other "fundamental" wrappers.
+
+extern crate coherence_copy_like_lib as lib;
+
+struct MyType { x: i32 }
+
+trait MyTrait { fn foo() {} }
+impl<T: lib::MyCopy> MyTrait for T { }
+
+// `MyStruct` is not declared fundamental, therefore this would
+// require that
+//
+// MyStruct<MyType>: !MyTrait
+//
+// which we cannot approve.
+impl MyTrait for lib::MyStruct<MyType> { }
+//~^ ERROR E0119
+
+fn main() { }