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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 18:31:44 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 18:31:44 +0000 |
commit | c23a457e72abe608715ac76f076f47dc42af07a5 (patch) | |
tree | 2772049aaf84b5c9d0ed12ec8d86812f7a7904b6 /tests/ui/rfcs/rfc-2294-if-let-guard/const-expr.rs | |
parent | Releasing progress-linux version 1.73.0+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-c23a457e72abe608715ac76f076f47dc42af07a5.tar.xz rustc-c23a457e72abe608715ac76f076f47dc42af07a5.zip |
Merging upstream version 1.74.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/rfcs/rfc-2294-if-let-guard/const-expr.rs')
-rw-r--r-- | tests/ui/rfcs/rfc-2294-if-let-guard/const-expr.rs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/const-expr.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/const-expr.rs new file mode 100644 index 000000000..5c42c0d8b --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/const-expr.rs @@ -0,0 +1,26 @@ +// Ensure if let guards can be used in constant expressions. +// build-pass + +#![feature(if_let_guard)] + +const fn match_if_let(x: Option<i32>, y: Option<i32>) -> i32 { + match x { + None if let Some(a @ 5) = y => a, + Some(z) if let (Some(_), 12) = (y, z) => 2, + _ => 3, + } +} + +const ASSERTS: usize = { + assert!(match_if_let(None, Some(5)) == 5); + assert!(match_if_let(Some(12), Some(3)) == 2); + assert!(match_if_let(None, Some(4)) == 3); + assert!(match_if_let(Some(11), Some(3)) == 3); + assert!(match_if_let(Some(12), None) == 3); + assert!(match_if_let(None, None) == 3); + 0 +}; + +fn main() { + let _: [(); ASSERTS]; +} |