GHCJS
Simon Marlow
marlowsd at gmail.com
Fri Aug 5 10:34:58 CEST 2011
On 04/08/2011 21:02, Simon Peyton-Jones wrote:
> | data LiteralDesugaring m =
> | LiteralDesugaring
> | { desugarInt :: MonadThings m => Integer -> m CoreExpr
> | , desugarWord :: MonadThings m => Integer -> m CoreExpr
> ...
>
> I am not sure why you want to control the desugaring of literals. Why literals? And why is literals enough?
>
> | But I don't still understand what can I do with foreign
> | imports/exports. DsForeign module seems to be too complicated. As I
> | can see, I shouldn't make whole dsForeigns function replaceable, but I
> | can't understand what part of it should be replaceble.
>
> I still think that the stub generation for foreign declarations should be easily separable. The desugarer generates a certainly amount of unwrapping, but you'll want that for JavaScript too. The actual calling convention is embedded inside the Id: see the FCallId constructor of IdDetails in IdInfo.lhs, and the ForeignCall type in ForiegnCall.lhs.
There's a lot that's backend-specific about the way we desugar foreign
import "wrapper" - calls to createAdjustor passing magic strings and
suchlike. It would be nice to identify the stuff that is
backend-specific and separate it out, I think.
Cheers,
Simon
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