Auto merge of #51622 - kennytm:three-field-range-inclusive, r=SimonSapin

Change RangeInclusive to a three-field struct.

Fix #45222.

This PR also reverts #48012 (i.e. removed the `try_fold`/`try_rfold` specialization for `RangeInclusive`) because LLVM no longer has trouble recognizing a RangeInclusive loop.

1 files changed, 10 insertions, 10 deletions

diff --git a/src/libcore/slice/mod.rs b/src/libcore/slice/mod.rs
index f6ef4a79dc7..b766140ffe9 100644
--- a/src/libcore/slice/mod.rs
+++ b/src/libcore/slice/mod.rs
@@ -2265,36 +2265,36 @@ impl<T> SliceIndex<[T]> for ops::RangeInclusive<usize> {
 
     #[inline]
     fn get(self, slice: &[T]) -> Option<&[T]> {
-        if self.end == usize::max_value() { None }
-        else { (self.start..self.end + 1).get(slice) }
+        if *self.end() == usize::max_value() { None }
+        else { (*self.start()..self.end() + 1).get(slice) }
     }
 
     #[inline]
     fn get_mut(self, slice: &mut [T]) -> Option<&mut [T]> {
-        if self.end == usize::max_value() { None }
-        else { (self.start..self.end + 1).get_mut(slice) }
+        if *self.end() == usize::max_value() { None }
+        else { (*self.start()..self.end() + 1).get_mut(slice) }
     }
 
     #[inline]
     unsafe fn get_unchecked(self, slice: &[T]) -> &[T] {
-        (self.start..self.end + 1).get_unchecked(slice)
+        (*self.start()..self.end() + 1).get_unchecked(slice)
     }
 
     #[inline]
     unsafe fn get_unchecked_mut(self, slice: &mut [T]) -> &mut [T] {
-        (self.start..self.end + 1).get_unchecked_mut(slice)
+        (*self.start()..self.end() + 1).get_unchecked_mut(slice)
     }
 
     #[inline]
     fn index(self, slice: &[T]) -> &[T] {
-        if self.end == usize::max_value() { slice_index_overflow_fail(); }
-        (self.start..self.end + 1).index(slice)
+        if *self.end() == usize::max_value() { slice_index_overflow_fail(); }
+        (*self.start()..self.end() + 1).index(slice)
     }
 
     #[inline]
     fn index_mut(self, slice: &mut [T]) -> &mut [T] {
-        if self.end == usize::max_value() { slice_index_overflow_fail(); }
-        (self.start..self.end + 1).index_mut(slice)
+        if *self.end() == usize::max_value() { slice_index_overflow_fail(); }
+        (*self.start()..self.end() + 1).index_mut(slice)
     }
 }