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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 /src/test/ui/nll/issue-24535-allow-mutable-borrow-in-match-guard.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 'src/test/ui/nll/issue-24535-allow-mutable-borrow-in-match-guard.rs')
-rw-r--r--src/test/ui/nll/issue-24535-allow-mutable-borrow-in-match-guard.rs55
1 files changed, 0 insertions, 55 deletions
diff --git a/src/test/ui/nll/issue-24535-allow-mutable-borrow-in-match-guard.rs b/src/test/ui/nll/issue-24535-allow-mutable-borrow-in-match-guard.rs
deleted file mode 100644
index 7253d35ed..000000000
--- a/src/test/ui/nll/issue-24535-allow-mutable-borrow-in-match-guard.rs
+++ /dev/null
@@ -1,55 +0,0 @@
-// run-pass
-// This test illustrates that under NLL, we can remove our overly
-// conservative approach for disallowing mutations of match inputs.
-
-// See further discussion on rust-lang/rust#24535,
-// rust-lang/rfcs#1006, and rust-lang/rfcs#107
-
-fn main() {
- rust_issue_24535();
- rfcs_issue_1006_1();
- rfcs_issue_1006_2();
-}
-
-fn rust_issue_24535() {
- fn compare(a: &u8, b: &mut u8) -> bool {
- a == b
- }
-
- let a = 3u8;
-
- match a {
- 0 => panic!("nope"),
- 3 if compare(&a, &mut 3) => (),
- _ => panic!("nope"),
- }
-}
-
-fn rfcs_issue_1006_1() {
- let v = vec!["1".to_string(), "2".to_string(), "3".to_string()];
- match Some(&v) {
- Some(iv) if iv.iter().any(|x| &x[..]=="2") => true,
- _ => panic!("nope"),
- };
-}
-
-fn rfcs_issue_1006_2() {
- #[inline(always)]
- fn check<'a, I: Iterator<Item=&'a i32>>(mut i: I) -> bool {
- i.any(|&x| x == 2)
- }
-
- let slice = [1, 2, 3];
-
- match 42 {
- _ if slice.iter().any(|&x| x == 2) => { true },
- _ => { panic!("nope"); }
- };
-
- // (This match is just illustrating how easy it was to circumvent
- // the checking performed for the previous `match`.)
- match 42 {
- _ if check(slice.iter()) => { true },
- _ => { panic!("nope"); }
- };
-}