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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/associated-types/associated-types-struct-field-numbered.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 'src/test/ui/associated-types/associated-types-struct-field-numbered.rs')
-rw-r--r-- | src/test/ui/associated-types/associated-types-struct-field-numbered.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/test/ui/associated-types/associated-types-struct-field-numbered.rs b/src/test/ui/associated-types/associated-types-struct-field-numbered.rs new file mode 100644 index 000000000..8612911d8 --- /dev/null +++ b/src/test/ui/associated-types/associated-types-struct-field-numbered.rs @@ -0,0 +1,32 @@ +// run-pass +// Test that we correctly normalize the type of a struct field +// which has an associated type. + + +pub trait UnifyKey { + type Value; + + fn dummy(&self) { } +} + +pub struct Node<K:UnifyKey>(#[allow(unused_tuple_struct_fields)] K, K::Value); + +fn foo<K : UnifyKey<Value=Option<V>>,V : Clone>(node: &Node<K>) -> Option<V> { + node.1.clone() +} + +impl UnifyKey for i32 { + type Value = Option<u32>; +} + +impl UnifyKey for u32 { + type Value = Option<i32>; +} + +pub fn main() { + let node: Node<i32> = Node(1, Some(22)); + assert_eq!(foo(&node), Some(22)); + + let node: Node<u32> = Node(1, Some(22)); + assert_eq!(foo(&node), Some(22)); +} |