Code inspection: Replace 'Slice' with range indexer

This inspection reports calls to Slice(...) that can be written more clearly with the C# range indexer syntax. It typically appears when the start and end of the slice can be expressed directly as a range, including from-start and from-end forms such as [..5], [1..], or [^5..].

Example

                Span<int> values = stackalloc[] { 1, 2, 3, 4, 5 };
                var firstPart = values.Slice(0, 3);
                var tail = values.Slice(2);
            

                Span<int> values = stackalloc[] { 1, 2, 3, 4, 5 };
                var firstPart = values[..3];
                var tail = values[2..];
            

Quick-fix

Range indexers are shorter and make the slice boundaries easier to read at a glance.

30 March 2026