ucsd-progsys/liquidhaskell
Vedi su GitHubCannot parse the unit value in refinement bounds
Open
#1300 aperta il 17 apr 2018
easygood first issueparser
Metriche repository
- Star
- (1306 star)
- Metriche merge PR
- (Merge medio 2g 18h) (12 PR mergiate in 30 g)
Descrizione
I'm not really sure it's by design or not, LH fails to parse bounds which include the unit literal ().
{-@
testee :: forall <
p :: Int -> () -> Int -> Bool
, q :: Int -> () -> Int -> Bool
>.
{ n :: Int |- Int<p n ()> <: Int<q n ()> }
Int
@-}
testee :: Int
testee = 42
Literals of the types other than () look okay, e.g. in the case of Int or Bool, the code is compilable.
{-@
testee :: forall <
p :: Int -> Int -> Int -> Bool
, q :: Int -> Int -> Int -> Bool
>.
{ n :: Int |- Int<p n 42> <: Int<q n 42> }
Int
@-}
testee :: Int
testee = 42