Elide redundant impl block lifetimes following stricter Rust 1.83 lint

Rust now points out that `impl<'a> (Trait for) Struct<'a>` is
superfluous whenever `'a` is not used anywhere else in the `impl` block.

Author: MarijnS95

android-activity/src/game_activity/input.rs

@@ -263,7 +263,7 @@ pub(crate) struct PointerImpl<'a> {
     index: usize,
 }
 
-impl<'a> PointerImpl<'a> {
+impl PointerImpl<'_> {
     #[inline]
     pub fn pointer_index(&self) -> usize {
         self.index
@@ -333,7 +333,7 @@ impl<'a> Iterator for PointersIterImpl<'a> {
     }
 }
 
-impl<'a> ExactSizeIterator for PointersIterImpl<'a> {
+impl ExactSizeIterator for PointersIterImpl<'_> {
     fn len(&self) -> usize {
         self.count - self.next_index
     }
@@ -740,7 +740,7 @@ impl<'a> KeyEvent<'a> {
     }
 }
 
-impl<'a> KeyEvent<'a> {
+impl KeyEvent<'_> {
     /// Flags associated with this [`KeyEvent`].
     ///
     /// See [the NDK docs](https://developer.android.com/ndk/reference/group/input#akeyevent_getflags)

android-activity/src/game_activity/mod.rs

@@ -84,7 +84,7 @@ impl<'a> StateSaver<'a> {
 pub struct StateLoader<'a> {
     app: &'a AndroidAppInner,
 }
-impl<'a> StateLoader<'a> {
+impl StateLoader<'_> {
     pub fn load(&self) -> Option<Vec<u8>> {
         unsafe {
             let app_ptr = self.app.native_app.as_ptr();
@@ -722,7 +722,7 @@ impl<'a> InputBuffer<'a> {
     }
 }
 
-impl<'a> Drop for InputBuffer<'a> {
+impl Drop for InputBuffer<'_> {
     fn drop(&mut self) {
         unsafe {
             ffi::android_app_clear_motion_events(self.ptr.as_ptr());
@@ -801,7 +801,7 @@ pub(crate) struct InputIteratorInner<'a> {
     text_event_checked: bool,
 }
 
-impl<'a> InputIteratorInner<'a> {
+impl InputIteratorInner<'_> {
     pub(crate) fn next<F>(&mut self, callback: F) -> bool
     where
         F: FnOnce(&input::InputEvent) -> InputStatus,
@@ -943,7 +943,7 @@ pub unsafe extern "C" fn _rust_glue_entry(native_app: *mut ffi::android_app) {
                 // code to look up non-standard Java classes.
                 android_main(app);
             })
-            .unwrap_or_else(|panic| log_panic(panic));
+            .unwrap_or_else(log_panic);
 
             // Let JVM know that our Activity can be destroyed before detaching from the JVM
             //

android-activity/src/input.rs

@@ -912,7 +912,7 @@ pub struct InputIterator<'a> {
     pub(crate) inner: crate::activity_impl::InputIteratorInner<'a>,
 }
 
-impl<'a> InputIterator<'a> {
+impl InputIterator<'_> {
     /// Reads and handles the next input event by passing it to the given `callback`
     ///
     /// `callback` should return [`InputStatus::Unhandled`] for any input events that aren't directly
@@ -932,7 +932,7 @@ pub struct Pointer<'a> {
     pub(crate) inner: PointerImpl<'a>,
 }
 
-impl<'a> Pointer<'a> {
+impl Pointer<'_> {
     #[inline]
     pub fn pointer_index(&self) -> usize {
         self.inner.pointer_index()
@@ -1026,7 +1026,7 @@ impl<'a> Iterator for PointersIter<'a> {
     }
 }
 
-impl<'a> ExactSizeIterator for PointersIter<'a> {
+impl ExactSizeIterator for PointersIter<'_> {
     fn len(&self) -> usize {
         self.inner.len()
     }

android-activity/src/native_activity/input.rs

@@ -15,7 +15,7 @@ pub struct MotionEvent<'a> {
     ndk_event: ndk::event::MotionEvent,
     _lifetime: PhantomData<&'a ndk::event::MotionEvent>,
 }
-impl<'a> MotionEvent<'a> {
+impl MotionEvent<'_> {
     pub(crate) fn new(ndk_event: ndk::event::MotionEvent) -> Self {
         Self {
             ndk_event,
@@ -248,7 +248,7 @@ pub(crate) struct PointerImpl<'a> {
     ndk_pointer: ndk::event::Pointer<'a>,
 }
 
-impl<'a> PointerImpl<'a> {
+impl PointerImpl<'_> {
     #[inline]
     pub fn pointer_index(&self) -> usize {
         self.ndk_pointer.pointer_index()
@@ -303,7 +303,7 @@ impl<'a> Iterator for PointersIterImpl<'a> {
     }
 }
 
-impl<'a> ExactSizeIterator for PointersIterImpl<'a> {
+impl ExactSizeIterator for PointersIterImpl<'_> {
     fn len(&self) -> usize {
         self.ndk_pointers_iter.len()
     }
@@ -319,7 +319,7 @@ pub struct KeyEvent<'a> {
     ndk_event: ndk::event::KeyEvent,
     _lifetime: PhantomData<&'a ndk::event::KeyEvent>,
 }
-impl<'a> KeyEvent<'a> {
+impl KeyEvent<'_> {
     pub(crate) fn new(ndk_event: ndk::event::KeyEvent) -> Self {
         Self {
             ndk_event,

android-activity/src/native_activity/mod.rs

@@ -53,7 +53,7 @@ impl<'a> StateSaver<'a> {
 pub struct StateLoader<'a> {
     app: &'a AndroidAppInner,
 }
-impl<'a> StateLoader<'a> {
+impl StateLoader<'_> {
     /// Returns whatever state was saved during the last [MainEvent::SaveState] event or `None`
     pub fn load(&self) -> Option<Vec<u8>> {
         self.app.native_activity.saved_state()
@@ -465,7 +465,7 @@ pub(crate) struct InputReceiver {
     queue: Option<InputQueue>,
 }
 
-impl<'a> From<Arc<InputReceiver>> for InputIteratorInner<'a> {
+impl From<Arc<InputReceiver>> for InputIteratorInner<'_> {
     fn from(receiver: Arc<InputReceiver>) -> Self {
         Self {
             receiver,
@@ -480,7 +480,7 @@ pub(crate) struct InputIteratorInner<'a> {
     _lifetime: PhantomData<&'a ()>,
 }
 
-impl<'a> InputIteratorInner<'a> {
+impl InputIteratorInner<'_> {
     pub(crate) fn next<F>(&self, callback: F) -> bool
     where
         F: FnOnce(&input::InputEvent) -> InputStatus,