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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:03 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:03 +0000
commit64d98f8ee037282c35007b64c2649055c56af1db (patch)
tree5492bcf97fce41ee1c0b1cc2add283f3e66cdab0 /tests/ui/type-alias-impl-trait/not_a_defining_use.rs
parentAdding debian version 1.67.1+dfsg1-1. (diff)
downloadrustc-64d98f8ee037282c35007b64c2649055c56af1db.tar.xz
rustc-64d98f8ee037282c35007b64c2649055c56af1db.zip
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/type-alias-impl-trait/not_a_defining_use.rs')
-rw-r--r--tests/ui/type-alias-impl-trait/not_a_defining_use.rs36
1 files changed, 36 insertions, 0 deletions
diff --git a/tests/ui/type-alias-impl-trait/not_a_defining_use.rs b/tests/ui/type-alias-impl-trait/not_a_defining_use.rs
new file mode 100644
index 000000000..fa47d13f5
--- /dev/null
+++ b/tests/ui/type-alias-impl-trait/not_a_defining_use.rs
@@ -0,0 +1,36 @@
+#![feature(type_alias_impl_trait)]
+
+use std::fmt::Debug;
+
+fn main() {}
+
+type Two<T, U> = impl Debug;
+
+fn three<T: Debug, U>(t: T) -> Two<T, U> {
+ (t, 5i8)
+ //~^ ERROR `T` doesn't implement `Debug`
+}
+
+trait Bar {
+ type Blub: Debug;
+ const FOO: Self::Blub;
+}
+
+impl Bar for u32 {
+ type Blub = i32;
+ const FOO: i32 = 42;
+}
+
+fn four<T: Debug, U: Bar>(t: T) -> Two<T, U> {
+ (t, <U as Bar>::FOO)
+ //~^ ERROR `U: Bar` is not satisfied
+ //~| ERROR `T` doesn't implement `Debug`
+}
+
+fn is_sync<T: Sync>() {}
+
+fn asdfl() {
+ //FIXME(oli-obk): these currently cause cycle errors
+ //is_sync::<Two<i32, u32>>();
+ //is_sync::<Two<i32, *const i32>>();
+}