Re:After your personal info... (Score 1)

You're not getting it right either though that's most likely the summary's fault. Unless to read the entire article I don't think one would get what this is about.

Today's commercial compilers are black boxes, Hejlsberg said. A compiler is a program that converts source code into binary executable program. Internally, a compiler generates a lot of information about the program it is building, he explained, although typically the developer doesn't have access to that data. Roslyn can offer access to this data, Hejlsberg said. The data can then be used by Visual Studio to generate more options for programmers.

It is a service to you, the developper, by providing you with information that normally only lives in the compiler. You can then you this data to have a better understanding of your code, how it is going to compile and various other operations.

Developers could also use the output of such software to do tasks like refactor, or reorganize, their code more easily, to add C# and Visual Basic functionality to programs written in other languages. It also adds dynamic typing to the statically typed C# and Visual Basic, allowing developers to add objects and new variables to a program on the fly. [...] He also demonstrated how Roslyn could convert Visual Basic code to C# code, and vice versa, much to the delight of the audience.