diff options
Diffstat (limited to 'src/test/ui/derives/deriving-with-repr-packed.rs')
-rw-r--r-- | src/test/ui/derives/deriving-with-repr-packed.rs | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/src/test/ui/derives/deriving-with-repr-packed.rs b/src/test/ui/derives/deriving-with-repr-packed.rs deleted file mode 100644 index 3884e3977..000000000 --- a/src/test/ui/derives/deriving-with-repr-packed.rs +++ /dev/null @@ -1,45 +0,0 @@ -#![deny(unaligned_references)] - -// Check that deriving certain builtin traits on certain packed structs cause -// errors. This happens when the derived trait would need to use a potentially -// misaligned reference. But there are two cases that are allowed: -// - If all the fields within the struct meet the required alignment: 1 for -// `repr(packed)`, or `N` for `repr(packed(N))`. -// - If `Default` is the only trait derived, because it doesn't involve any -// references. - -#[derive(Copy, Clone, Default, PartialEq, Eq)] -//~^ ERROR `Clone` can't be derived on this `#[repr(packed)]` struct with type or const parameters -//~| hard error -//~^^^ ERROR `PartialEq` can't be derived on this `#[repr(packed)]` struct with type or const parameters -//~| hard error -#[repr(packed)] -pub struct Foo<T>(T, T, T); - -#[derive(Default, Hash)] -//~^ ERROR `Hash` can't be derived on this `#[repr(packed)]` struct that does not derive `Copy` -//~| hard error -#[repr(packed)] -pub struct Bar(u32, u32, u32); - -// This one is fine because the field alignment is 1. -#[derive(Default, Hash)] -#[repr(packed)] -pub struct Bar2(u8, i8, bool); - -// This one is fine because the field alignment is 2, matching `packed(2)`. -#[derive(Default, Hash)] -#[repr(packed(2))] -pub struct Bar3(u16, i16, bool); - -// This one is fine because it's not packed. -#[derive(Debug, Default)] -struct Y(usize); - -#[derive(Debug, Default)] -//~^ ERROR `Debug` can't be derived on this `#[repr(packed)]` struct that does not derive `Copy` -//~| hard error -#[repr(packed)] -struct X(Y); - -fn main() {} |