[Haskell-cafe] Re: Top Level <-

Ganesh Sittampalam wrote:

Suppose I am writing something that I intend to be used as part of a plug-in that is reloaded in different forms again and again. And I see module K which does something I want, so I use it. It so happens that K uses M, which has a <-. If I knew that using K in my plug-in would cause a memory leak, I would avoid doing so; but since the whole point of <- is to avoid making the need for some state visible in the API.

The results from the <- in M will only be stored once for the life of the RTS, no matter how many times your plug-ins are reloaded. -- Ashley Yakeley