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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/liveness/liveness-dead.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/liveness/liveness-dead.rs')
-rw-r--r-- | tests/ui/liveness/liveness-dead.rs | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/tests/ui/liveness/liveness-dead.rs b/tests/ui/liveness/liveness-dead.rs new file mode 100644 index 000000000..004663c85 --- /dev/null +++ b/tests/ui/liveness/liveness-dead.rs @@ -0,0 +1,39 @@ +#![allow(dead_code)] +#![deny(unused_assignments)] + +fn f1(x: &mut isize) { + *x = 1; // no error +} + +fn f2() { + let mut x: isize = 3; //~ ERROR: value assigned to `x` is never read + x = 4; + x.clone(); +} + +fn f3() { + let mut x: isize = 3; + x.clone(); + x = 4; //~ ERROR: value assigned to `x` is never read +} + +fn f4(mut x: i32) { //~ ERROR: value passed to `x` is never read + x = 4; + x.clone(); +} + +fn f5(mut x: i32) { + x.clone(); + x = 4; //~ ERROR: value assigned to `x` is never read +} + +// #22630 +fn f6() { + let mut done = false; + while !done { + done = true; // no error + continue; + } +} + +fn main() {} |