From 64d98f8ee037282c35007b64c2649055c56af1db Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:03 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/union/union-with-drop-fields.rs | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 tests/ui/union/union-with-drop-fields.rs (limited to 'tests/ui/union/union-with-drop-fields.rs') diff --git a/tests/ui/union/union-with-drop-fields.rs b/tests/ui/union/union-with-drop-fields.rs new file mode 100644 index 000000000..a7a8b69e7 --- /dev/null +++ b/tests/ui/union/union-with-drop-fields.rs @@ -0,0 +1,31 @@ +// revisions: mirunsafeck thirunsafeck +// [thirunsafeck]compile-flags: -Z thir-unsafeck + +#![allow(dead_code)] + +union U { + a: u8, // OK +} + +union W { + a: String, //~ ERROR unions cannot contain fields that may need dropping + b: String, // OK, only one field is reported +} + +struct S(String); + +// `S` doesn't implement `Drop` trait, but still has non-trivial destructor +union Y { + a: S, //~ ERROR unions cannot contain fields that may need dropping +} + +// We don't know if `T` is trivially-destructable or not until trans +union J { + a: T, //~ ERROR unions cannot contain fields that may need dropping +} + +union H { + a: T, // OK, `T` is `Copy`, no destructor +} + +fn main() {} -- cgit v1.2.3