Add clashing-extern-fn.rs stderr.

1 files changed, 121 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 00000000000..7e85e38a5b8
--- /dev/null
+++ b/src/test/ui/lint/clashing-extern-fn.stderr
@@ -0,0 +1,121 @@
+warning: `clash` redeclared with a different signature
+  --> $DIR/clashing-extern-fn.rs:15:9
+   |
+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_decl)]
+   |         ^^^^^^^^^^^^^^^^^^^^
+   = note: expected  `unsafe extern "C" fn(u8)`
+              found  `unsafe extern "C" fn(u64)`
+
+warning: `extern_fn` redeclared with a different signature
+  --> $DIR/clashing-extern-fn.rs:39:9
+   |
+LL |     fn extern_fn(x: u64);
+   |     --------------------- `extern_fn` previously declared here
+...
+LL |         fn extern_fn(x: u32);
+   |         ^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration
+   |
+   = note: expected  `unsafe extern "C" fn(u64)`
+              found  `unsafe extern "C" fn(u32)`
+
+warning: `extern_link_name` redeclared with a different signature
+  --> $DIR/clashing-extern-fn.rs:64:9
+   |
+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:67:9
+   |
+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:71:9
+   |
+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:84:9
+   |
+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:94:9
+   |
+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:137:22
+   |
+LL |         extern "C" { fn weigh_banana(count: *const Banana) -> u64; }
+   |                      --------------------------------------------- `weigh_banana` previously declared here
+...
+LL |         extern "C" { fn weigh_banana(count: *const Banana) -> u64; }
+   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration
+   |
+   = note: expected  `unsafe extern "C" fn(*const banana::one::Banana) -> u64`
+              found  `unsafe extern "C" fn(*const banana::three::Banana) -> u64`
+
+warning: `draw_point` redeclared with a different signature
+  --> $DIR/clashing-extern-fn.rs:157:22
+   |
+LL |         extern "C" { fn draw_point(p: Point); }
+   |                      ------------------------ `draw_point` previously declared here
+...
+LL |         extern "C" { 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: 9 warnings emitted
+