diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/liveness/liveness-dead.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/liveness/liveness-dead.rs')
-rw-r--r-- | src/test/ui/liveness/liveness-dead.rs | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/test/ui/liveness/liveness-dead.rs b/src/test/ui/liveness/liveness-dead.rs new file mode 100644 index 000000000..004663c85 --- /dev/null +++ b/src/test/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() {} |