DevExpress CodeRush Tips&Tricks

The Declare Interface code provider generates a new definition of an interface and adds interface referenced members to it, if any. The declaring provider is available on an undeclared type reference, that starts with an upper-case letter I, e.g. ILogger.

For example, declaring an Interface from the ILogger reference in this code:

class Log
{
  private static ILogger logger = new Logger();

  public static void SendMessage(string msg)
  {
    logger.SendMessage(msg);
  }
  public static string GetMessage(int index)
  {
    return logger.GetMessage(index);
  }
}

Will result in the following Interface declaration:

public interface ILogger
{
  void GetMessage(int index);
  void SendMessage(string msg);
}

The interface declaration is placed above the current type in the same file, and the marker is dropped at the source starting position over the interface reference.

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