[Haskell-cafe] Re: Packages and modules
wnoise at ofb.net
Thu Jul 6 16:07:16 EDT 2006
On 2006-07-06, Simon Marlow <simonmarhaskell at gmail.com> wrote:
> a. we could put package names in module names as you suggest. But
> apart from sacrificing the second principle, this doesn't let
> you import a module from a package without specifying the exact
> version of the package ==> BAD.
Right. There are occasions of course that I do want to specify
exact versions -- such as testing two versions side by side.
> b. we could add compiler options that let you graft the module
> namespace of a package into the global module namespace at
> an arbitrary location.
This seems quite workable.
> c. instead of grafting, we add language support to allow importing
> modules from a particular package (crucically, you don't have
> to specify the version).
The package still needs to be located somehow, and I don't like this
split between tools and language.
More information about the Haskell-Cafe