Mark Fielder writes:
| How does Haskell provide encapsulation? What mechanisms does it
| use?
The ways that spring to mind are modules and nested declarations:
http://haskell.cs.yale.edu/onlinereport/modules.html
http://haskell.cs.yale.edu/onlinereport/decls.html#sect4.4
| What are Haskell's encapsulation strengths and weaknesses?
That's a matter of opinion. It's strong in all the areas I care
about, but someone else may find it a pain that there's no way to
prevent a module from exporting all its evidence declarations.
| Thanks for the help!
| Mark
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