Dear GHC experts,
say I have
module A where
class C a where ...
f :: C a = String - a
module B where
import A
data T = ...
instance C T where ...
g :: String - SomeOtherType
g s = doSomethingWith (f s)
Is it possible to SPECIALIZE `f` for the type `T`?
If
On 28 July 2010 13:57, Sebastian Fischer s...@informatik.uni-kiel.de wrote:
In my case, I don't want to put everything in a single module because I
cannot know what other B-like modules people will implement.Are they bound
to use `f` unspecialized for their types?
Yes. GHC might inline f into
On Jul 28, 2010, at 5:40 PM, Max Bolingbroke wrote:
SPECIALISE pragmas are not supported in any but the defining module
because the Core for a function to specialise is not guaranteed to be
available in any other module.
Would it be reasonable (and possible) to reject specialization only if
| SPECIALISE pragmas are not supported in any but the defining module
| because the Core for a function to specialise is not guaranteed to be
| available in any other module. I don't think there is any other
| barrier.
Yes, exactly.
| It is possible to imagine implementing a remedy for this by
