using System;

using System.Collections.Generic;

​

internal ref struct CharSpanSplitter

{

    public CharSpanSplitter(ReadOnlySpan<char> value, char separator) 

    { 

        this.__unspeakable_value = value; 

        this.__unspeakable_separator = separator; 

    }

​

    // Uncomment to make the error go away

    private ReadOnlySpan<char> __unspeakable_value; //= value;

    private char __unspeakable_separator;

​

    public ReadOnlySpan<char> Current { get; private set; }

​

    public bool MoveNext()

    {

        // CS9110: Cannot use primary constructor parameter that has ref-like type inside an instance member.

        if (__unspeakable_value == ReadOnlySpan<char>.Empty)

        {

            return false;

        }

​

        // CS9110: Cannot use primary constructor parameter that has ref-like type inside an instance member.

        var index = __unspeakable_value.IndexOf(__unspeakable_separator);

        if (index == -1)

        {

            // CS9110: Cannot use primary constructor parameter that has ref-like type inside an instance member.

            Current = __unspeakable_value;

            // CS9110: Cannot use primary constructor parameter that has ref-like type inside an instance member.

            __unspeakable_value = ReadOnlySpan<char>.Empty;

            return true;

        }

​

        // CS9110: Cannot use primary constructor parameter that has ref-like type inside an instance member.

        Current = __unspeakable_value[..index];

​

​

        // CS9110: Cannot use primary constructor parameter that has ref-like type inside an instance member.

        __unspeakable_value = __unspeakable_value[(index + 1)..];

        return true;

    }

}

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

}