Comments (6)
from liquidhaskell-tutorial.
So actually I'm still kinda stuck in the Sanitization exercise in Chapter 5 to the point even I skip it and back to it from time to time. As can be seen in this code my implementation is still unsafe somehow. I think I may have to make a specification too for testList to solve the problem but as you can see by this question, I also still haven't figured out how to create that. Could you refer me a resource for this "reflection"? Thank you very much. :D
from liquidhaskell-tutorial.
from liquidhaskell-tutorial.
It is a very exciting blog! It sounds like a foundational idea of Liquid Haskell. I wonder if you get some inspiration from this writing.
I still don't succeed in creating the function. My best attempt so far is in this code but it still have the same error (apart from realizing I should change Int to Nat).
from liquidhaskell-tutorial.
from liquidhaskell-tutorial.
Oh yeah before I have changed the Just (SP dim elts')
to use the already sanitized type but then it was still not working so I changed it back. I've changed it back to your suggestion because well it makes much more sense
After some experiments and seeing your code, I've determined that the real problem is that the refiner doesn't really work around fst
function. Here is the code where I change fst xs
in favor of pattern recognision (see fromList
and fromList'
) inspired by your code, and it works perfectly. I guess it's the same problem with null
that I have discussed some time before. Thank you for your assistance!
(Btw I think I like my fromList'
more. I think it's more coherent with the spirit of the function. Also inspired by that parse don't validate article!)
from liquidhaskell-tutorial.
Related Issues (20)
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from liquidhaskell-tutorial.