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| author | Vladislav Zavialov <vlad.z.4096@gmail.com> | 2018-07-16 18:46:52 -0400 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2018-07-16 18:46:53 -0400 |
| commit | 65c186f0fdde95fd7c63ab9bd9b33a0213dba7d1 (patch) | |
| tree | 92abe9e3aeab1711db0e77361c453ee49f48ef55 /testsuite/tests/polykinds/T10134.hs | |
| parent | 7fe4993673e43e5b21f38d79ecc8b5163e97ee84 (diff) | |
| download | haskell-65c186f0fdde95fd7c63ab9bd9b33a0213dba7d1.tar.gz | |
Do not imply NoStarIsType by TypeOperators/TypeInType
Implementation of the "Embrace TypeInType" proposal was done according
to the spec, which specified that TypeOperators must imply NoStarIsType.
This implication was meant to prevent breakage and to be removed in 2
releases. However, compiling head.hackage has shown that this
implication only magnified the breakage, so there is no reason to have
it in the first place.
To remain in compliance with the three-release policy, we add a
workaround to define the (*) type operator even when -XStarIsType is on.
Test Plan: ./validate
Reviewers: bgamari, RyanGlScott, goldfire, phadej, hvr
Reviewed By: bgamari, RyanGlScott
Subscribers: harpocrates, rwbarton, thomie, carter
Differential Revision: https://phabricator.haskell.org/D4865
Diffstat (limited to 'testsuite/tests/polykinds/T10134.hs')
| -rw-r--r-- | testsuite/tests/polykinds/T10134.hs | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/testsuite/tests/polykinds/T10134.hs b/testsuite/tests/polykinds/T10134.hs index 0b64625f28..746758ce2f 100644 --- a/testsuite/tests/polykinds/T10134.hs +++ b/testsuite/tests/polykinds/T10134.hs @@ -3,7 +3,7 @@ module T10134 where -import GHC.TypeLits +import GHC.TypeLits as L import T10134a import Prelude @@ -11,9 +11,9 @@ type Positive n = ((n-1)+1)~n data Dummy n d = Dummy { vec :: Vec n (Vec d Bool) } -nextDummy :: Positive (2*(n+d)) => Dummy n d -> Dummy n d +nextDummy :: Positive (2 L.* (n+d)) => Dummy n d -> Dummy n d nextDummy d = Dummy { vec = vec dFst } where (dFst,dSnd) = nextDummy' d -nextDummy' :: Positive (2*(n+d)) => Dummy n d -> ( Dummy n d, Bool ) +nextDummy' :: Positive (2 L.* (n+d)) => Dummy n d -> ( Dummy n d, Bool ) nextDummy' _ = undefined |