Cabal is a layer on Haskell
simonmar at microsoft.com
Tue Apr 26 07:30:49 EDT 2005
On 26 April 2005 04:55, S. Alexander Jacobson wrote:
> On Mon, 25 Apr 2005, John Meacham wrote:
>> You can compare Cabal's way of doing things to what specific
>> compilers have done, but not 'Haskell' because 'Haskell' doesn't
>> concern itself with these issues.
This is correct.
> Yeah Simon Marlow corrected me on this one too.
No I didn't :-p
> Cabal should be thought of Cabal is part of the Haskell source not its
> Me: My fundamental point here is that the meaning of code shouldn't
> change depending on the location where it is interpreted. [...]
> Concretely, the meaning of "import Data.List" in a
> haskell module shouldn't depend on whether the module is on my
> computer or yours.
> Simon: You can think of .cabal as part of the source if that helps.
> It really is part of the source - but implemented and specified as
> a layer on top of existing language and compiler technology, for
> convenience and so that we can share the tools.
You misinterpreted me. I'm simply saying that .cabal is part of the
source of a Cabal package, not part of the Haskell source. Of course,
since Cabal doesn't change the definition of Haskell.
I'll state this clearly (again):
Cabal is a layer on top of the Haskell language definition.
It does not change Haskell, it is not "incompatible" with Haskell.
It defines some things that are undefined in the Haskell definition.
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