by Eric Seidel, Galois intern Embedded DSLs are a bit of a double-edged sword. They have a low start-up cost because you can defer a lot of work to the host language, but producing good error messages can be challenging. People often talk about the quality of type errors produced by the host language, but […]

Abstract We will take you on a guided tour through the memory of a running Haskell program and get to peek at the raw bytes of Haskell values. We’ll see how uniformity allows for polymorphic functions and data structures, where the garbage collector finds the information it needs and learn to predict how large certain values tend to become. With […]