diff options
Diffstat (limited to 'testsuite/tests/hiefile/should_compile/ScopesBug.hs')
-rw-r--r-- | testsuite/tests/hiefile/should_compile/ScopesBug.hs | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/testsuite/tests/hiefile/should_compile/ScopesBug.hs b/testsuite/tests/hiefile/should_compile/ScopesBug.hs new file mode 100644 index 0000000000..ea87d308d4 --- /dev/null +++ b/testsuite/tests/hiefile/should_compile/ScopesBug.hs @@ -0,0 +1,13 @@ +{-# LANGUAGE PatternSynonyms, ViewPatterns #-} +{-# LANGUAGE ImplicitParams #-} +{-# LANGUAGE RecordWildCards #-} +{-# LANGUAGE ScopedTypeVariables #-} +{-# LANGUAGE PolyKinds #-} + +module ScopesBug where + +data Proxy (a :: k) = Proxy +data Con k (a :: k) = Con (Proxy a) + +tyApp :: Con k a -> Proxy a +tyApp (Con @kx @ax (x :: Proxy ax)) = x :: Proxy (ax :: kx) |