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Diffstat (limited to 'testsuite/tests/typecheck/should_compile/HardRecordUpdate.hs')
-rw-r--r-- | testsuite/tests/typecheck/should_compile/HardRecordUpdate.hs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/testsuite/tests/typecheck/should_compile/HardRecordUpdate.hs b/testsuite/tests/typecheck/should_compile/HardRecordUpdate.hs new file mode 100644 index 0000000000..fc32f79bb3 --- /dev/null +++ b/testsuite/tests/typecheck/should_compile/HardRecordUpdate.hs @@ -0,0 +1,16 @@ +{-# LANGUAGE GADTs, TypeFamilies #-} + +module HardRecordUpdate where + +import Data.Kind + +type F :: Type -> Type +type family F a where {} + +type G :: Type -> Type -> Type -> Type +data family G a b c +data instance G a b Char where + MkG :: { bar :: F a } -> G a Bool Char + +g :: F Int -> G Float b Char -> G Int b Char +g i r = r { bar = i } |