diff options
Diffstat (limited to 'testsuite/tests/typecheck/should_fail/tcfail190.hs')
| -rw-r--r-- | testsuite/tests/typecheck/should_fail/tcfail190.hs | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/testsuite/tests/typecheck/should_fail/tcfail190.hs b/testsuite/tests/typecheck/should_fail/tcfail190.hs new file mode 100644 index 0000000000..7cc768af65 --- /dev/null +++ b/testsuite/tests/typecheck/should_fail/tcfail190.hs @@ -0,0 +1,13 @@ + +-- Checks that the ordering constraint on the implicit groupWith is respected + +{-# OPTIONS_GHC -XTransformListComp #-} + +module ShouldFail where + +data Unorderable = Gnorf | Pinky | Brain + +foo = [ () + | x <- [Gnorf, Brain] + , then group by x + ] |