diff options
Diffstat (limited to 'tests/ui/lint/clashing-extern-fn.stderr')
-rw-r--r-- | tests/ui/lint/clashing-extern-fn.stderr | 124 |
1 files changed, 59 insertions, 65 deletions
diff --git a/tests/ui/lint/clashing-extern-fn.stderr b/tests/ui/lint/clashing-extern-fn.stderr index 5d457ba0e..0d269e599 100644 --- a/tests/ui/lint/clashing-extern-fn.stderr +++ b/tests/ui/lint/clashing-extern-fn.stderr @@ -1,11 +1,30 @@ +warning: `extern` block uses type `Option<TransparentNoNiche>`, which is not FFI-safe + --> $DIR/clashing-extern-fn.rs:433:55 + | +LL | fn hidden_niche_transparent_no_niche() -> Option<TransparentNoNiche>; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe + | + = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum + = note: enum has no representation hint + = note: `#[warn(improper_ctypes)]` on by default + +warning: `extern` block uses type `Option<UnsafeCell<NonZeroUsize>>`, which is not FFI-safe + --> $DIR/clashing-extern-fn.rs:437:46 + | +LL | fn hidden_niche_unsafe_cell() -> Option<UnsafeCell<NonZeroUsize>>; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe + | + = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum + = note: enum has no representation hint + warning: `clash` redeclared with a different signature --> $DIR/clashing-extern-fn.rs:14:13 | LL | fn clash(x: u8); - | ---------------- `clash` previously declared here + | --------------- `clash` previously declared here ... LL | fn clash(x: u64); - | ^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | ^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration | = note: expected `unsafe extern "C" fn(u8)` found `unsafe extern "C" fn(u64)` @@ -18,12 +37,11 @@ LL | #![warn(clashing_extern_declarations)] warning: `extern_link_name` redeclared with a different signature --> $DIR/clashing-extern-fn.rs:52:9 | -LL | / #[link_name = "extern_link_name"] -LL | | fn some_new_name(x: i16); - | |_____________________________- `extern_link_name` previously declared here +LL | #[link_name = "extern_link_name"] + | --------------------------------- `extern_link_name` previously declared here ... -LL | fn extern_link_name(x: u32); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration +LL | fn extern_link_name(x: u32); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration | = note: expected `unsafe extern "C" fn(i16)` found `unsafe extern "C" fn(u32)` @@ -31,13 +49,11 @@ LL | fn extern_link_name(x: u32); warning: `some_other_extern_link_name` redeclares `some_other_new_name` with a different signature --> $DIR/clashing-extern-fn.rs:55:9 | -LL | fn some_other_new_name(x: i16); - | ------------------------------- `some_other_new_name` previously declared here +LL | fn some_other_new_name(x: i16); + | ------------------------------ `some_other_new_name` previously declared here ... -LL | / #[link_name = "some_other_new_name"] -LL | | -LL | | fn some_other_extern_link_name(x: u32); - | |_______________________________________________^ this signature doesn't match the previous declaration +LL | #[link_name = "some_other_new_name"] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration | = note: expected `unsafe extern "C" fn(i16)` found `unsafe extern "C" fn(u32)` @@ -45,14 +61,11 @@ LL | | fn some_other_extern_link_name(x: u32); warning: `other_both_names_different` redeclares `link_name_same` with a different signature --> $DIR/clashing-extern-fn.rs:59:9 | -LL | / #[link_name = "link_name_same"] -LL | | fn both_names_different(x: i16); - | |____________________________________- `link_name_same` previously declared here +LL | #[link_name = "link_name_same"] + | ------------------------------- `link_name_same` previously declared here ... -LL | / #[link_name = "link_name_same"] -LL | | -LL | | fn other_both_names_different(x: u32); - | |______________________________________________^ this signature doesn't match the previous declaration +LL | #[link_name = "link_name_same"] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration | = note: expected `unsafe extern "C" fn(i16)` found `unsafe extern "C" fn(u32)` @@ -61,10 +74,10 @@ warning: `different_mod` redeclared with a different signature --> $DIR/clashing-extern-fn.rs:72:9 | LL | fn different_mod(x: u8); - | ------------------------ `different_mod` previously declared here + | ----------------------- `different_mod` previously declared here ... LL | fn different_mod(x: u64); - | ^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | ^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration | = note: expected `unsafe extern "C" fn(u8)` found `unsafe extern "C" fn(u64)` @@ -73,10 +86,10 @@ warning: `variadic_decl` redeclared with a different signature --> $DIR/clashing-extern-fn.rs:82:9 | LL | fn variadic_decl(x: u8, ...); - | ----------------------------- `variadic_decl` previously declared here + | ---------------------------- `variadic_decl` previously declared here ... LL | fn variadic_decl(x: u8); - | ^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | ^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration | = note: expected `unsafe extern "C" fn(u8, ...)` found `unsafe extern "C" fn(u8)` @@ -85,10 +98,10 @@ warning: `weigh_banana` redeclared with a different signature --> $DIR/clashing-extern-fn.rs:142:13 | LL | fn weigh_banana(count: *const Banana) -> u64; - | --------------------------------------------- `weigh_banana` previously declared here + | -------------------------------------------- `weigh_banana` previously declared here ... LL | fn weigh_banana(count: *const Banana) -> u64; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration | = note: expected `unsafe extern "C" fn(*const one::Banana) -> u64` found `unsafe extern "C" fn(*const three::Banana) -> u64` @@ -97,10 +110,10 @@ warning: `draw_point` redeclared with a different signature --> $DIR/clashing-extern-fn.rs:171:13 | LL | fn draw_point(p: Point); - | ------------------------ `draw_point` previously declared here + | ----------------------- `draw_point` previously declared here ... LL | fn draw_point(p: Point); - | ^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | ^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration | = note: expected `unsafe extern "C" fn(sameish_members::a::Point)` found `unsafe extern "C" fn(sameish_members::b::Point)` @@ -109,10 +122,10 @@ warning: `origin` redeclared with a different signature --> $DIR/clashing-extern-fn.rs:197:13 | LL | fn origin() -> Point3; - | ---------------------- `origin` previously declared here + | --------------------- `origin` previously declared here ... LL | fn origin() -> Point3; - | ^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | ^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration | = note: expected `unsafe extern "C" fn() -> same_sized_members_clash::a::Point3` found `unsafe extern "C" fn() -> same_sized_members_clash::b::Point3` @@ -121,10 +134,10 @@ warning: `transparent_incorrect` redeclared with a different signature --> $DIR/clashing-extern-fn.rs:220:13 | LL | fn transparent_incorrect() -> T; - | -------------------------------- `transparent_incorrect` previously declared here + | ------------------------------- `transparent_incorrect` previously declared here ... LL | fn transparent_incorrect() -> isize; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration | = note: expected `unsafe extern "C" fn() -> T` found `unsafe extern "C" fn() -> isize` @@ -133,10 +146,10 @@ warning: `missing_return_type` redeclared with a different signature --> $DIR/clashing-extern-fn.rs:259:13 | LL | fn missing_return_type() -> usize; - | ---------------------------------- `missing_return_type` previously declared here + | --------------------------------- `missing_return_type` previously declared here ... LL | fn missing_return_type(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | ^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration | = note: expected `unsafe extern "C" fn() -> usize` found `unsafe extern "C" fn()` @@ -145,10 +158,10 @@ warning: `non_zero_usize` redeclared with a different signature --> $DIR/clashing-extern-fn.rs:277:13 | LL | fn non_zero_usize() -> core::num::NonZeroUsize; - | ----------------------------------------------- `non_zero_usize` previously declared here + | ---------------------------------------------- `non_zero_usize` previously declared here ... LL | fn non_zero_usize() -> usize; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration | = note: expected `unsafe extern "C" fn() -> NonZeroUsize` found `unsafe extern "C" fn() -> usize` @@ -157,10 +170,10 @@ warning: `non_null_ptr` redeclared with a different signature --> $DIR/clashing-extern-fn.rs:279:13 | LL | fn non_null_ptr() -> core::ptr::NonNull<usize>; - | ----------------------------------------------- `non_null_ptr` previously declared here + | ---------------------------------------------- `non_null_ptr` previously declared here ... LL | fn non_null_ptr() -> *const usize; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration | = note: expected `unsafe extern "C" fn() -> NonNull<usize>` found `unsafe extern "C" fn() -> *const usize` @@ -169,10 +182,10 @@ warning: `option_non_zero_usize_incorrect` redeclared with a different signature --> $DIR/clashing-extern-fn.rs:377:13 | LL | fn option_non_zero_usize_incorrect() -> usize; - | ---------------------------------------------- `option_non_zero_usize_incorrect` previously declared here + | --------------------------------------------- `option_non_zero_usize_incorrect` previously declared here ... LL | fn option_non_zero_usize_incorrect() -> isize; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration | = note: expected `unsafe extern "C" fn() -> usize` found `unsafe extern "C" fn() -> isize` @@ -181,10 +194,10 @@ warning: `option_non_null_ptr_incorrect` redeclared with a different signature --> $DIR/clashing-extern-fn.rs:379:13 | LL | fn option_non_null_ptr_incorrect() -> *const usize; - | --------------------------------------------------- `option_non_null_ptr_incorrect` previously declared here + | -------------------------------------------------- `option_non_null_ptr_incorrect` previously declared here ... LL | fn option_non_null_ptr_incorrect() -> *const isize; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration | = note: expected `unsafe extern "C" fn() -> *const usize` found `unsafe extern "C" fn() -> *const isize` @@ -193,10 +206,10 @@ warning: `hidden_niche_transparent_no_niche` redeclared with a different signatu --> $DIR/clashing-extern-fn.rs:433:13 | LL | fn hidden_niche_transparent_no_niche() -> usize; - | ------------------------------------------------ `hidden_niche_transparent_no_niche` previously declared here + | ----------------------------------------------- `hidden_niche_transparent_no_niche` previously declared here ... LL | fn hidden_niche_transparent_no_niche() -> Option<TransparentNoNiche>; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration | = note: expected `unsafe extern "C" fn() -> usize` found `unsafe extern "C" fn() -> Option<TransparentNoNiche>` @@ -205,32 +218,13 @@ warning: `hidden_niche_unsafe_cell` redeclared with a different signature --> $DIR/clashing-extern-fn.rs:437:13 | LL | fn hidden_niche_unsafe_cell() -> usize; - | --------------------------------------- `hidden_niche_unsafe_cell` previously declared here + | -------------------------------------- `hidden_niche_unsafe_cell` previously declared here ... LL | fn hidden_niche_unsafe_cell() -> Option<UnsafeCell<NonZeroUsize>>; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration | = note: expected `unsafe extern "C" fn() -> usize` found `unsafe extern "C" fn() -> Option<UnsafeCell<NonZeroUsize>>` -warning: `extern` block uses type `Option<TransparentNoNiche>`, which is not FFI-safe - --> $DIR/clashing-extern-fn.rs:433:55 - | -LL | fn hidden_niche_transparent_no_niche() -> Option<TransparentNoNiche>; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe - | - = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum - = note: enum has no representation hint - = note: `#[warn(improper_ctypes)]` on by default - -warning: `extern` block uses type `Option<UnsafeCell<NonZeroUsize>>`, which is not FFI-safe - --> $DIR/clashing-extern-fn.rs:437:46 - | -LL | fn hidden_niche_unsafe_cell() -> Option<UnsafeCell<NonZeroUsize>>; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe - | - = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum - = note: enum has no representation hint - warning: 19 warnings emitted |