It's exposed through Roslyn (I was technically wrong in that it's not included in the language, but in Visual Studio). It's not very well-documented (to give yo

It's exposed through Roslyn (I was technically wrong in that it's not included in the language, but in Visual Studio). It's not very well-documented (to give you some idea of how not well-documented it is, some of the most useful documentation is in a Word file[1]). The code is Open Source[2]. I found out about Roslyn through hearing Erik Meijer speak at a conference. A quick search shows that the content of his talk at the conference I went to is probably covered in his C9 lectures[3], probably in Chapter 8[4]. But I'm pretty sure that will only cover the parser combinators, which is the algorithm, but not the specifics, of how C# is parsed. When I was doing C# parsing I was working with the CodeDom[5]. If you just need the AST I think ExpressionTrees[6] are now the idiomatic way to generate it, but I'm not sure how that relates to Roslyn. Disclaimer: My day-to-day development switched over to primarily C/Python/JS about a year and a half ago, so it's been a while since I fired up Visual Studio. My knowledge is probably out of date, and might be flat wrong--nobody's memory is great after a year and a half. [1] http://msdn.microsoft.com/en-us/hh543916 http://msdn.microsoft.com/en-us/hh543916 [2] https://github.com/dotnet/roslyn https://github.com/dotnet/roslyn [3] https://channel9.msdn.com/Series/C9-Lectures-Erik-Meijer-Functional-Programming-Fundamentals https://channel9.msdn.com/Series/C9-Lectures-Erik-Meijer-Fun... [4] https://channel9.msdn.com/Series/C9-Lectures-Erik-Meijer-Functional-Programming-Fundamentals/C9-Lectures-Dr-Erik-Meijer-Functional-Programming-Fundamentals-Chapter-8-of-13 https://channel9.msdn.com/Series/C9-Lectures-Erik-Meijer-Fun... [5] https://msdn.microsoft.com/en-us/library/y2k85ax6.aspx https://msdn.microsoft.com/en-us/library/y2k85ax6.aspx [6] https://msdn.microsoft.com/en-us/library/bb397951.aspx https://msdn.microsoft.com/en-us/library/bb397951.aspx