Microsoft's Shared Source CLI (code-named "Rotor") is the publicly available implementation of the ECMA Common Language Infrastructure (CLI) and the ECMA C# language specification. Loaded with three million lines of source code, it presents a wealth of programming language technology that targets developers interested in the internal workings of the Microsoft .NET Framework, academics working with advanced compiler technology, and people developing their own CLI implementations. The CLI, at its heart, is an approach to building software that enables code from many independent sources to...