Merge #84

84: Make Mapper trait object safe by adding `Self: Sized` bounds on generic functions r=phil-opp a=phil-opp

See #80 for more information

I'm not quite sure whether this is a **breaking change**, but I think it is.

Co-authored-by: Philipp Oppermann <dev@phil-opp.com>

src/structures/paging/mapper/mod.rs

@@ -92,6 +92,7 @@ pub trait Mapper<S: PageSize> {
         frame_allocator: &mut A,
     ) -> Result<MapperFlush<S>, MapToError>
     where
+        Self: Sized,
         A: FrameAllocator<Size4KiB>;
 
     /// Removes a mapping from the page table and returns the frame that used to be mapped.
@@ -123,6 +124,7 @@ pub trait Mapper<S: PageSize> {
         frame_allocator: &mut A,
     ) -> Result<MapperFlush<S>, MapToError>
     where
+        Self: Sized,
         A: FrameAllocator<Size4KiB>,
         S: PageSize,
         Self: Mapper<S>,
@@ -203,3 +205,5 @@ pub enum TranslateError {
     /// The page table entry for the given page points to an invalid physical address.
     InvalidFrameAddress(PhysAddr),
 }
+
+static _ASSERT_OBJECT_SAFE: Option<&(dyn MapperAllSizes + Sync)> = None;