diff options
Diffstat (limited to 'testsuite/tests/deriving/should_fail/drvfail013.stderr')
| -rw-r--r-- | testsuite/tests/deriving/should_fail/drvfail013.stderr | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/testsuite/tests/deriving/should_fail/drvfail013.stderr b/testsuite/tests/deriving/should_fail/drvfail013.stderr new file mode 100644 index 0000000000..94927cd790 --- /dev/null +++ b/testsuite/tests/deriving/should_fail/drvfail013.stderr @@ -0,0 +1,18 @@ + +drvfail013.hs:4:70: + No instance for (Eq (m (Maybe a))) + arising from the 'deriving' clause of a data type declaration + Possible fix: + add an instance declaration for (Eq (m (Maybe a))) + or use a standalone 'deriving instance' declaration, + so you can specify the instance context yourself + When deriving the instance for (Eq (MaybeT m a)) + +drvfail013.hs:6:70: + No instance for (Eq (m (Maybe a))) + arising from the 'deriving' clause of a data type declaration + Possible fix: + add an instance declaration for (Eq (m (Maybe a))) + or use a standalone 'deriving instance' declaration, + so you can specify the instance context yourself + When deriving the instance for (Eq (MaybeT' m a)) |