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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/issues/issue-17718-static-unsafe-interior.rs | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/test/ui/issues/issue-17718-static-unsafe-interior.rs b/src/test/ui/issues/issue-17718-static-unsafe-interior.rs new file mode 100644 index 000000000..65a8713ba --- /dev/null +++ b/src/test/ui/issues/issue-17718-static-unsafe-interior.rs @@ -0,0 +1,52 @@ +// run-pass +#![allow(dead_code)] +#![allow(unused_variables)] +#![allow(unused_imports)] +// pretty-expanded FIXME #23616 + +use std::marker; +use std::cell::UnsafeCell; + +struct MyUnsafePack<T>(UnsafeCell<T>); + +unsafe impl<T: Send> Sync for MyUnsafePack<T> {} + +struct MyUnsafe<T> { + value: MyUnsafePack<T> +} + +impl<T> MyUnsafe<T> { + fn forbidden(&self) {} +} + +unsafe impl<T: Send> Sync for MyUnsafe<T> {} + +enum UnsafeEnum<T> { + VariantSafe, + VariantUnsafe(UnsafeCell<T>) +} + +unsafe impl<T: Send> Sync for UnsafeEnum<T> {} + +static STATIC1: UnsafeEnum<isize> = UnsafeEnum::VariantSafe; + +static STATIC2: MyUnsafePack<isize> = MyUnsafePack(UnsafeCell::new(1)); +const CONST: MyUnsafePack<isize> = MyUnsafePack(UnsafeCell::new(1)); +static STATIC3: MyUnsafe<isize> = MyUnsafe{value: CONST}; + +static STATIC4: &'static MyUnsafePack<isize> = &STATIC2; + +struct Wrap<T> { + value: T +} + +unsafe impl<T: Send> Sync for Wrap<T> {} + +static UNSAFE: MyUnsafePack<isize> = MyUnsafePack(UnsafeCell::new(2)); +static WRAPPED_UNSAFE: Wrap<&'static MyUnsafePack<isize>> = Wrap { value: &UNSAFE }; + +fn main() { + let a = &STATIC1; + + STATIC3.forbidden() +} |