Small Basic, from Microsoft Dev Labs, is a minimal implementation of BASIC, employing only 14 keywords, aimed at beginners. In the last 2 articles I described building an internal DSL and parser to build an abstract syntax tree (AST) representation of the program with an interpreter for execution. In this article I’ll describe how to transform the AST to executable .Net IL code, thus building a compiler. Small Basic is an imperative programming language where programs are built up of procedures containing[...]