Interface expected

• Apr 29, 2019
• 2 minutes to read

CodeRush Classic shows the Interface expected code issue if a structure inherits a type, but not an interface.

Fix

Make sure that the current structure inherits only interfaces.

Purpose

Highlights the structure declaration statements, which would cause the Type ‘Type name’ in interface list is not an interface compilation error.

Example

C#

public class MyStructBase
{
    public virtual string Name { get; protected set; }
    public virtual int Index { get; protected set; }
    public virtual object Data { get; set; }
}
public struct MyStruct: │MyStructBase
{
    public MyStruct(string name, int index, object data)
    {
        Index = index;
        Name = name;
        Data = data;
    }
    public override string Name { get; private set; }
    public override int Index { get; private set; }
    public override object Data { get; set; }
}

Fix:

C#

public interface IMyStruct
{
    string Name { get; private set; }
    int Index { get; private set; }
    object Data { get; set; }
}
public struct MyStruct: IMyStruct
{
    public MyStruct(string name, int index, object data)
    {
        Index = index;
        Name = name;
        Data = data;
    }
    public string Name { get; private set; }
    public int Index { get; private set; }
    public object Data { get; set; }
}