account for doc visibility

tests/ui/doc_unsafe.rs

@@ -17,9 +17,59 @@ unsafe fn you_dont_see_me() {
     unimplemented!();
 }
 
-fn main() {
-    you_dont_see_me();
-    destroy_the_planet();
-    let mut universe = ();
-    apocalypse(&mut universe);
+mod private_mod {
+    pub unsafe fn only_crate_wide_accessible() {
+        unimplemented!();
+    }
+
+    pub unsafe fn republished() {
+        unimplemented!();
+    }
+}
+
+pub use private_mod::republished;
+
+pub trait UnsafeTrait {
+    unsafe fn woefully_underdocumented(self);
+
+    /// # Safety
+    unsafe fn at_least_somewhat_documented(self);
+}
+
+pub struct Struct;
+
+impl UnsafeTrait for Struct {
+    unsafe fn woefully_underdocumented(self) {
+        // all is well
+    }
+
+    unsafe fn at_least_somewhat_documented(self) {
+        // all is still well
+    }
+}
+
+impl Struct {
+    pub unsafe fn more_undocumented_unsafe() -> Self {
+        unimplemented!();
+    }
+
+    /// # Safety
+    pub unsafe fn somewhat_documented(&self) {
+        unimplemented!();
+    }
+
+    unsafe fn private(&self) {
+        unimplemented!();
+    }
+}
+
+#[allow(clippy::let_unit_value)]
+fn main() {
+    unsafe {
+        you_dont_see_me();
+        destroy_the_planet();
+        let mut universe = ();
+        apocalypse(&mut universe);
+        private_mod::only_crate_wide_accessible();
+    }
 }

tests/ui/doc_unsafe.stderr

@@ -8,5 +8,27 @@ LL | | }
    |
    = note: `-D clippy::missing-safety-doc` implied by `-D warnings`
 
-error: aborting due to previous error
+error: unsafe function's docs miss `# Safety` section
+  --> $DIR/doc_unsafe.rs:25:5
+   |
+LL | /     pub unsafe fn republished() {
+LL | |         unimplemented!();
+LL | |     }
+   | |_____^
+
+error: unsafe function's docs miss `# Safety` section
+  --> $DIR/doc_unsafe.rs:33:5
+   |
+LL |     unsafe fn woefully_underdocumented(self);
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: unsafe function's docs miss `# Safety` section
+  --> $DIR/doc_unsafe.rs:52:5
+   |
+LL | /     pub unsafe fn more_undocumented_unsafe() -> Self {
+LL | |         unimplemented!();
+LL | |     }
+   | |_____^
+
+error: aborting due to 4 previous errors
 

tests/ui/functions.rs

@@ -1,6 +1,6 @@
 #![warn(clippy::all)]
 #![allow(dead_code)]
-#![allow(unused_unsafe)]
+#![allow(unused_unsafe, clippy::missing_safety_doc)]
 
 // TOO_MANY_ARGUMENTS
 fn good(_one: u32, _two: u32, _three: &str, _four: bool, _five: f32, _six: f32, _seven: bool) {}

tests/ui/new_without_default.rs

@@ -1,5 +1,5 @@
 #![feature(const_fn)]
-#![allow(dead_code)]
+#![allow(dead_code, clippy::missing_safety_doc)]
 #![warn(clippy::new_without_default)]
 
 pub struct Foo;