Operator cannot be abstract

• Apr 29, 2019

CodeRush Classic shows the Operator cannot be abstract code issue if an operator declaration contains an abstract keyword.

Fix

Remove the abstract keyword from the operator declaration.

Purpose

Highlights the operator declarations, which would cause the The modifier ‘abstract’ is not valid for this item compilation error.

Example

C#

public class MyData
{
    public MyData(string name, List<string> data)
    {
        Name = name;
        Data = data;
    }
    public string Name { get; set; }
    public List<string> Data { get; set; }
    public static abstract MyData operator │+(MyData d1, MyData d2);
}

Fix:

C#

public class MyData
{
    public MyData(string name, List<string> data)
    {
        Name = name;
        Data = data;
    }
    public string Name { get; set; }
    public List<string> Data { get; set; }
    public static MyData operator +(MyData d1, MyData d2)
    {
        string newName = String.Format("{0}&{1}", d1.Name, d2.Name);
        List<string> newData = d1.Data;
        newData.AddRange(d2.Data);
        return new MyData(newName, newData);
    }
}