Fix warnings and deny warnings in CI

.github/workflows/build.yml

@@ -5,22 +5,26 @@ name: Build
 permissions:
   contents: read
 
+env:
+  RUSTFLAGS: -Dwarnings
+  RUSTDOCFLAGS: -Dwarnings
+
 jobs:
   check:
     name: Check
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
-      - run: cargo check --workspace
+      - run: cargo check --workspace --features derive
 
   test:
     name: Test Suite
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
-      - run: cargo test --workspace
+      - run: cargo test --workspace --features derive
 
   unstable:
     name: Test Suite (unstable)
@@ -47,4 +51,4 @@ jobs:
         with:
           components: clippy, rustfmt
       - run: cargo fmt --all --check
-      - run: cargo clippy --workspace
+      - run: cargo clippy --workspace --features derive

src/lib.rs

@@ -40,6 +40,7 @@
 #![cfg_attr(feature = "very_unstable", feature(fn_traits))]
 #![cfg_attr(feature = "very_unstable", feature(effects))]
 #![cfg_attr(docsrs, feature(doc_auto_cfg))]
+#![cfg_attr(feature = "unstable", allow(internal_features))]
 #![warn(missing_docs)]
 #![deny(unsafe_op_in_unsafe_fn)]
 #![doc(test(attr(deny(warnings))))]
@@ -62,7 +63,7 @@
 ///
 /// ```
 /// use volatile::access::ReadOnly;
-/// use volatile::{VolatileFieldAccess, VolatilePtr, VolatileRef};
+/// use volatile::{VolatileFieldAccess, VolatileRef};
 ///
 /// #[repr(C)]
 /// #[derive(VolatileFieldAccess, Default)]
@@ -74,7 +75,7 @@
 ///
 /// let mut device_config = DeviceConfig::default();
 /// let mut volatile_ref = VolatileRef::from_mut_ref(&mut device_config);
-/// let mut volatile_ptr = volatile_ref.as_mut_ptr();
+/// let volatile_ptr = volatile_ref.as_mut_ptr();
 ///
 /// volatile_ptr.feature_select().write(42);
 /// assert_eq!(volatile_ptr.feature_select().read(), 42);
@@ -92,6 +93,14 @@
 /// The example above results in (roughly) the following code:
 ///
 /// ```
+/// # #[repr(C)]
+/// # pub struct DeviceConfig {
+/// #     feature_select: u32,
+/// #     feature: u32,
+/// # }
+/// use volatile::access::{ReadOnly, ReadWrite};
+/// use volatile::{map_field, VolatilePtr};
+///
 /// pub trait DeviceConfigVolatileFieldAccess<'a> {
 ///     fn feature_select(self) -> VolatilePtr<'a, u32, ReadWrite>;
 ///

src/volatile_ptr/mod.rs

@@ -79,7 +79,7 @@ where
     T: ?Sized,
 {
     fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
-        Some(Ord::cmp(&self.pointer.as_ptr(), &other.pointer.as_ptr()))
+        Some(self.cmp(other))
     }
 }
 
@@ -88,6 +88,7 @@ where
     T: ?Sized,
 {
     fn cmp(&self, other: &Self) -> Ordering {
+        #[allow(ambiguous_wide_pointer_comparisons)]
         Ord::cmp(&self.pointer.as_ptr(), &other.pointer.as_ptr())
     }
 }

src/volatile_ref.rs

@@ -314,7 +314,7 @@ where
     T: ?Sized,
 {
     fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
-        Some(Ord::cmp(&self.pointer.as_ptr(), &other.pointer.as_ptr()))
+        Some(self.cmp(other))
     }
 }
 
@@ -323,6 +323,7 @@ where
     T: ?Sized,
 {
     fn cmp(&self, other: &Self) -> Ordering {
+        #[allow(ambiguous_wide_pointer_comparisons)]
         Ord::cmp(&self.pointer.as_ptr(), &other.pointer.as_ptr())
     }
 }