diff options
Diffstat (limited to 'src/test/ui')
| -rw-r--r-- | src/test/ui/lint/clashing-extern-fn.rs | 22 | ||||
| -rw-r--r-- | src/test/ui/lint/clashing-extern-fn.stderr | 26 |
2 files changed, 41 insertions, 7 deletions
diff --git a/src/test/ui/lint/clashing-extern-fn.rs b/src/test/ui/lint/clashing-extern-fn.rs index e165a4f4658..d6ac7ccccc7 100644 --- a/src/test/ui/lint/clashing-extern-fn.rs +++ b/src/test/ui/lint/clashing-extern-fn.rs @@ -174,6 +174,28 @@ mod sameish_members { } } +mod same_sized_members_clash { + mod a { + #[repr(C)] + struct Point3 { + x: f32, + y: f32, + z: f32, + } + extern "C" { fn origin() -> Point3; } + } + mod b { + #[repr(C)] + struct Point3 { + x: i32, + y: i32, + z: i32, // NOTE: Incorrectly redeclared as i32 + } + extern "C" { fn origin() -> Point3; } + //~^ WARN `origin` redeclared with a different signature + } +} + mod transparent { #[repr(transparent)] struct T(usize); diff --git a/src/test/ui/lint/clashing-extern-fn.stderr b/src/test/ui/lint/clashing-extern-fn.stderr index 31810a2998a..cca0c4c59eb 100644 --- a/src/test/ui/lint/clashing-extern-fn.stderr +++ b/src/test/ui/lint/clashing-extern-fn.stderr @@ -105,8 +105,20 @@ LL | fn draw_point(p: Point); = 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:194:22 + | +LL | extern "C" { fn origin() -> Point3; } + | ---------------------- `origin` previously declared here +... +LL | extern "C" { 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:195:13 + --> $DIR/clashing-extern-fn.rs:217:13 | LL | fn transparent_incorrect() -> T; | -------------------------------- `transparent_incorrect` previously declared here @@ -118,7 +130,7 @@ LL | fn transparent_incorrect() -> isize; found `unsafe extern "C" fn() -> isize` warning: `missing_return_type` redeclared with a different signature - --> $DIR/clashing-extern-fn.rs:213:13 + --> $DIR/clashing-extern-fn.rs:235:13 | LL | fn missing_return_type() -> usize; | ---------------------------------- `missing_return_type` previously declared here @@ -130,7 +142,7 @@ LL | fn missing_return_type(); found `unsafe extern "C" fn()` warning: `non_zero_usize` redeclared with a different signature - --> $DIR/clashing-extern-fn.rs:231:13 + --> $DIR/clashing-extern-fn.rs:253:13 | LL | fn non_zero_usize() -> core::num::NonZeroUsize; | ----------------------------------------------- `non_zero_usize` previously declared here @@ -142,7 +154,7 @@ LL | fn non_zero_usize() -> usize; found `unsafe extern "C" fn() -> usize` warning: `non_null_ptr` redeclared with a different signature - --> $DIR/clashing-extern-fn.rs:233:13 + --> $DIR/clashing-extern-fn.rs:255:13 | LL | fn non_null_ptr() -> core::ptr::NonNull<usize>; | ----------------------------------------------- `non_null_ptr` previously declared here @@ -154,7 +166,7 @@ LL | fn non_null_ptr() -> *const usize; found `unsafe extern "C" fn() -> *const usize` warning: `option_non_zero_usize_incorrect` redeclared with a different signature - --> $DIR/clashing-extern-fn.rs:259:13 + --> $DIR/clashing-extern-fn.rs:281:13 | LL | fn option_non_zero_usize_incorrect() -> usize; | ---------------------------------------------- `option_non_zero_usize_incorrect` previously declared here @@ -166,7 +178,7 @@ LL | fn option_non_zero_usize_incorrect() -> isize; found `unsafe extern "C" fn() -> isize` warning: `option_non_null_ptr_incorrect` redeclared with a different signature - --> $DIR/clashing-extern-fn.rs:261:13 + --> $DIR/clashing-extern-fn.rs:283:13 | LL | fn option_non_null_ptr_incorrect() -> *const usize; | --------------------------------------------------- `option_non_null_ptr_incorrect` previously declared here @@ -177,5 +189,5 @@ LL | fn option_non_null_ptr_incorrect() -> *const isize; = note: expected `unsafe extern "C" fn() -> *const usize` found `unsafe extern "C" fn() -> *const isize` -warning: 14 warnings emitted +warning: 15 warnings emitted |