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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/regions/regions-implied-bounds-projection-gap-2.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/regions/regions-implied-bounds-projection-gap-2.rs')
-rw-r--r--src/test/ui/regions/regions-implied-bounds-projection-gap-2.rs23
1 files changed, 23 insertions, 0 deletions
diff --git a/src/test/ui/regions/regions-implied-bounds-projection-gap-2.rs b/src/test/ui/regions/regions-implied-bounds-projection-gap-2.rs
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+++ b/src/test/ui/regions/regions-implied-bounds-projection-gap-2.rs
@@ -0,0 +1,23 @@
+// Along with the other tests in this series, illustrates the
+// "projection gap": in this test, we know that `T: 'x`, and that is
+// enough to conclude that `T::Foo: 'x`.
+
+// check-pass
+#![allow(dead_code)]
+#![allow(unused_variables)]
+
+trait Trait1<'x> {
+ type Foo;
+}
+
+// calling this fn should trigger a check that the type argument
+// supplied is well-formed.
+fn wf<T>() { }
+
+fn func<'x, T:Trait1<'x>>(t: &'x T)
+{
+ wf::<&'x T::Foo>();
+}
+
+
+fn main() { }