> 3. Rosleyn: being able to compile and potentially be as fast as C++ Roslyn is the C#/VB compiler and analysis tool. Yes, that allows you to compile C#. No, i

> 3. Rosleyn: being able to compile and potentially be as fast as C++ Roslyn is the C#/VB compiler and analysis tool. Yes, that allows you to compile C#. No, it doesn't have anything to do with performance. That's where other things come in, like RyuJIT, or .NET Native.