[mariusmg]

>It makes full use of the existing ReSharper code base.

R# is written in C# while their IDEs is in Java. Most likely they "convert" some of the C# code to Java. It'll be ugly...

[nskvortsov]

Yet it indeed makes full use of resharper:

"instead of reimplementing ReSharper’s features on the IntellIJ Platform, which runs on the JVM, we’re using ReSharper in a headless mode, out of process, and communicating with it via a very fast custom binary protocol. "

[dfkf]

No, it's mentioned in the article that their new IDE is just a frontend for R#.