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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:20:39 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:20:39 +0000 |
commit | 1376c5a617be5c25655d0d7cb63e3beaa5a6e026 (patch) | |
tree | 3bb8d61aee02bc7a15eab3f36e3b921afc2075d0 /tests/ui/variance-intersection-of-ref-and-opt-ref.rs | |
parent | Releasing progress-linux version 1.69.0+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-1376c5a617be5c25655d0d7cb63e3beaa5a6e026.tar.xz rustc-1376c5a617be5c25655d0d7cb63e3beaa5a6e026.zip |
Merging upstream version 1.70.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/variance-intersection-of-ref-and-opt-ref.rs')
-rw-r--r-- | tests/ui/variance-intersection-of-ref-and-opt-ref.rs | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/tests/ui/variance-intersection-of-ref-and-opt-ref.rs b/tests/ui/variance-intersection-of-ref-and-opt-ref.rs deleted file mode 100644 index 74707a98d..000000000 --- a/tests/ui/variance-intersection-of-ref-and-opt-ref.rs +++ /dev/null @@ -1,25 +0,0 @@ -// run-pass -// Elaborated version of the opening example from RFC 738. This failed -// to compile before variance because invariance of `Option` prevented -// us from approximating the lifetimes of `field1` and `field2` to a -// common intersection. - -#![allow(dead_code)] - -struct List<'l> { - field1: &'l i32, - field2: Option<&'l i32>, -} - -fn foo(field1: &i32, field2: Option<&i32>) -> i32 { - let list = List { field1: field1, field2: field2 }; - *list.field1 + list.field2.cloned().unwrap_or(0) -} - -fn main() { - let x = 22; - let y = Some(3); - let z = None; - assert_eq!(foo(&x, y.as_ref()), 25); - assert_eq!(foo(&x, z.as_ref()), 22); -} |