Code inspection: Empty extension block

This inspection reports empty extension blocks that might be left over after a refactoring or cleanup. For example:

            
public static class StringExtensions
{
    extension(string str)
    {
        public bool IsNullOrEmpty() => string.IsNullOrEmpty(str);

        public bool IsNullOrWhiteSpace() => string.IsNullOrWhiteSpace(str);
    }

    extension (char[] chars)
    {

    }
}

        

            
public static class StringExtensions
{
    extension(string str)
    {
        public bool IsNullOrEmpty() => string.IsNullOrEmpty(str);

        public bool IsNullOrWhiteSpace() => string.IsNullOrWhiteSpace(str);
    }
}

        

12 November 2025