rust/src/test/ui/lint/opaque-ty-ffi-unsafe.full_t...

25 lines
866 B
Plaintext

warning: the feature `type_alias_impl_trait` is incomplete and may not be safe to use and/or cause compiler crashes
--> $DIR/opaque-ty-ffi-unsafe.rs:3:32
|
LL | #![cfg_attr(full_tait, feature(type_alias_impl_trait))]
| ^^^^^^^^^^^^^^^^^^^^^
|
= note: `#[warn(incomplete_features)]` on by default
= note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
error: `extern` block uses type `impl Fn<()>`, which is not FFI-safe
--> $DIR/opaque-ty-ffi-unsafe.rs:14:17
|
LL | pub fn a(_: A);
| ^ not FFI-safe
|
note: the lint level is defined here
--> $DIR/opaque-ty-ffi-unsafe.rs:5:9
|
LL | #![deny(improper_ctypes)]
| ^^^^^^^^^^^^^^^
= note: opaque types have no C equivalent
error: aborting due to previous error; 1 warning emitted