Is there a step-through debugger for Haskell?

Is there a step-through debugger 开发者_JS百科or similar for Haskell?

---

GHCi has an included debugger.

Don Stewart wrote a nice introductory tutorial some time ago.

There's also hood, which lets you observe intermediate structures.

Some older projects, such as hat, seem to have fallen into bitrot/off the internet.

Note – all the above packages are text-based and platform independent.