Issue 3 2016-05-19

• Low latency, large working set, and GHC’s garbage collector: pick two of three

  We discovered in particular that [GHC’s GC’s] pause times relate linearly to the size of the working set.

• GHCVM: A JVM backend for GHC

  Compile Haskell to the JVM, with the primary goal of seamless compatibility with GHC 7.10.3’s Haskell.

• Announcing Megaparsec 5

  The most important feature in this release is well-typed and customizable error messages.

• On Ad-hoc Datatypes

  Adding quick datatypes — without all these instances and auxiliary functions — often makes code easier to read.

• Are unused import warnings harmful?

  While removing unused imports is a nice thing to do, their presence does not actually indicate any potential issues with our code.

• Reason

  Reason is a new interface to OCaml

• When to evaluate strictly in Haskell?

  Is there some way to detect when lazy evaluation will get in the way of performance?

• Who invented proxy passing and when?

  Then someone figured out the proxy idiom, and everything changed.