Re: [Haskell-cafe] Syntax extension - adding import support to let/where bindings

On Thu, Aug 6, 2015 at 6:19 AM Vlatko Basic wrote:

The old Turbo Pascal keyword "with" (used for records) popped up in my mind. It's rather clear for namespace resolution and would look something like this:

with Data.ByteString $ do map f ...

with Prelude $ do map f ...

or more explicit

withImport Data.ByteString $ do ....

One problem with this is that it forces an ordering on statements. Sometimes you might want to push the imports to the side, by moving them to a where clause, rather than a let binding. I'm hoping that whatever we propose would allow you to do this. That's why I think the syntax construct needs to be something that appears at the time of doing bindings. *ocharles*