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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/union/union-fields-1.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/union/union-fields-1.rs')
-rw-r--r-- | src/test/ui/union/union-fields-1.rs | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/test/ui/union/union-fields-1.rs b/src/test/ui/union/union-fields-1.rs new file mode 100644 index 000000000..cf2ef4c03 --- /dev/null +++ b/src/test/ui/union/union-fields-1.rs @@ -0,0 +1,35 @@ +// revisions: mirunsafeck thirunsafeck +// [thirunsafeck]compile-flags: -Z thir-unsafeck + +#![deny(dead_code)] + +union U1 { + a: u8, // should not be reported + b: u8, // should not be reported + c: u8, //~ ERROR field `c` is never read +} +union U2 { + a: u8, //~ ERROR field `a` is never read + b: u8, // should not be reported + c: u8, // should not be reported +} +union NoDropLike { a: u8 } //~ ERROR field `a` is never read + +union U { + a: u8, // should not be reported + b: u8, // should not be reported + c: u8, //~ ERROR field `c` is never read +} +type A = U; + +fn main() { + let u = U1 { a: 0 }; + let _a = unsafe { u.b }; + + let u = U2 { c: 0 }; + let _b = unsafe { u.b }; + + let _u = NoDropLike { a: 10 }; + let u = A { a: 0 }; + let _b = unsafe { u.b }; +} |