Quote Originally Posted by VilleK
As far as I know, both VS and Delphi IDEs are still written in native code and although some extensions are .NET-based, the editor is not. And IMO .NET performance is good enough for making a code-completion feature, as long as you design your code carefully with performance in mind. But I don't want to start a native code vs. managed code-war here
No argument there. However, there is no reason to mix native and managed code. You use more memory (for .NET assemblies) and have to wait when certain feature is loaded. It's like they couldn't write refactoring code on the native platform.