rust/tests/ui/lint/lint-ffi-safety-all-phantom.rs
Arthur Carcano 797f247997 Mark ZST as FFI-safe if all its fields are PhantomData
Modify the linting behavior and add the corresponding
regression test
2023-01-12 12:21:35 +01:00

23 lines
449 B
Rust

// This is a regression test for issue https://github.com/rust-lang/rust/issues/106629.
// It ensures that transparent types where all fields are PhantomData are marked as
// FFI-safe.
// check-pass
#[repr(transparent)]
#[derive(Copy, Clone)]
struct MyPhantom(core::marker::PhantomData<u8>);
#[repr(C)]
#[derive(Copy, Clone)]
pub struct Bar {
pub x: i32,
_marker: MyPhantom,
}
extern "C" {
pub fn foo(bar: *mut Bar);
}
fn main() {}