diff options
Diffstat (limited to 'src/test/ui/lint/clashing-extern-fn.stderr')
| -rw-r--r-- | src/test/ui/lint/clashing-extern-fn.stderr | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/src/test/ui/lint/clashing-extern-fn.stderr b/src/test/ui/lint/clashing-extern-fn.stderr new file mode 100644 index 000000000..4607f6849 --- /dev/null +++ b/src/test/ui/lint/clashing-extern-fn.stderr @@ -0,0 +1,236 @@ +warning: `clash` redeclared with a different signature + --> $DIR/clashing-extern-fn.rs:14:13 + | +LL | fn clash(x: u8); + | ---------------- `clash` previously declared here +... +LL | fn clash(x: u64); + | ^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | +note: the lint level is defined here + --> $DIR/clashing-extern-fn.rs:4:9 + | +LL | #![warn(clashing_extern_declarations)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + = note: expected `unsafe extern "C" fn(u8)` + found `unsafe extern "C" fn(u64)` + +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 | 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)` + +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 | / #[link_name = "some_other_new_name"] +LL | | +LL | | fn some_other_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)` + +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"] +LL | | +LL | | fn other_both_names_different(x: u32); + | |______________________________________________^ this signature doesn't match the previous declaration + | + = note: expected `unsafe extern "C" fn(i16)` + found `unsafe extern "C" fn(u32)` + +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 +... +LL | fn different_mod(x: u64); + | ^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | + = note: expected `unsafe extern "C" fn(u8)` + found `unsafe extern "C" fn(u64)` + +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 +... +LL | fn variadic_decl(x: u8); + | ^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | + = note: expected `unsafe extern "C" fn(u8, ...)` + found `unsafe extern "C" fn(u8)` + +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 +... +LL | fn weigh_banana(count: *const Banana) -> u64; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 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` + +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 +... +LL | fn draw_point(p: Point); + | ^^^^^^^^^^^^^^^^^^^^^^^^ 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)` + +warning: `origin` redeclared with a different signature + --> $DIR/clashing-extern-fn.rs:197:13 + | +LL | fn origin() -> Point3; + | ---------------------- `origin` previously declared here +... +LL | fn origin() -> Point3; + | ^^^^^^^^^^^^^^^^^^^^^^ 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` + +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 +... +LL | fn transparent_incorrect() -> isize; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | + = note: expected `unsafe extern "C" fn() -> T` + found `unsafe extern "C" fn() -> isize` + +warning: `missing_return_type` redeclared with a different signature + --> $DIR/clashing-extern-fn.rs:238:13 + | +LL | fn missing_return_type() -> usize; + | ---------------------------------- `missing_return_type` previously declared here +... +LL | fn missing_return_type(); + | ^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | + = note: expected `unsafe extern "C" fn() -> usize` + found `unsafe extern "C" fn()` + +warning: `non_zero_usize` redeclared with a different signature + --> $DIR/clashing-extern-fn.rs:256:13 + | +LL | fn non_zero_usize() -> core::num::NonZeroUsize; + | ----------------------------------------------- `non_zero_usize` previously declared here +... +LL | fn non_zero_usize() -> usize; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | + = note: expected `unsafe extern "C" fn() -> NonZeroUsize` + found `unsafe extern "C" fn() -> usize` + +warning: `non_null_ptr` redeclared with a different signature + --> $DIR/clashing-extern-fn.rs:258:13 + | +LL | fn non_null_ptr() -> core::ptr::NonNull<usize>; + | ----------------------------------------------- `non_null_ptr` previously declared here +... +LL | fn non_null_ptr() -> *const usize; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | + = note: expected `unsafe extern "C" fn() -> NonNull<usize>` + found `unsafe extern "C" fn() -> *const usize` + +warning: `option_non_zero_usize_incorrect` redeclared with a different signature + --> $DIR/clashing-extern-fn.rs:356:13 + | +LL | fn option_non_zero_usize_incorrect() -> usize; + | ---------------------------------------------- `option_non_zero_usize_incorrect` previously declared here +... +LL | fn option_non_zero_usize_incorrect() -> isize; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration + | + = note: expected `unsafe extern "C" fn() -> usize` + found `unsafe extern "C" fn() -> isize` + +warning: `option_non_null_ptr_incorrect` redeclared with a different signature + --> $DIR/clashing-extern-fn.rs:358:13 + | +LL | fn option_non_null_ptr_incorrect() -> *const usize; + | --------------------------------------------------- `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 + | + = note: expected `unsafe extern "C" fn() -> *const usize` + found `unsafe extern "C" fn() -> *const isize` + +warning: `hidden_niche_transparent_no_niche` redeclared with a different signature + --> $DIR/clashing-extern-fn.rs:408:13 + | +LL | fn hidden_niche_transparent_no_niche() -> usize; + | ------------------------------------------------ `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 + | + = note: expected `unsafe extern "C" fn() -> usize` + found `unsafe extern "C" fn() -> Option<TransparentNoNiche>` + +warning: `hidden_niche_unsafe_cell` redeclared with a different signature + --> $DIR/clashing-extern-fn.rs:412:13 + | +LL | fn hidden_niche_unsafe_cell() -> usize; + | --------------------------------------- `hidden_niche_unsafe_cell` previously declared here +... +LL | fn hidden_niche_unsafe_cell() -> Option<UnsafeCell<NonZeroUsize>>; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 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:408:55 + | +LL | fn hidden_niche_transparent_no_niche() -> Option<TransparentNoNiche>; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe + | + = note: `#[warn(improper_ctypes)]` on by default + = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum + = note: enum has no representation hint + +warning: `extern` block uses type `Option<UnsafeCell<NonZeroUsize>>`, which is not FFI-safe + --> $DIR/clashing-extern-fn.rs:412:46 + | +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 + |