diff options
Diffstat (limited to 'testsuite/tests/deriving/should_fail/T7148a.stderr')
| -rw-r--r-- | testsuite/tests/deriving/should_fail/T7148a.stderr | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/testsuite/tests/deriving/should_fail/T7148a.stderr b/testsuite/tests/deriving/should_fail/T7148a.stderr new file mode 100644 index 0000000000..f2a938c0a7 --- /dev/null +++ b/testsuite/tests/deriving/should_fail/T7148a.stderr @@ -0,0 +1,7 @@ + +T7148a.hs:19:50: + Can't make a derived instance of ‛Convert (IS_NO_LONGER a)’ + (even with cunning newtype deriving): + it is not type-safe to use GeneralizedNewtypeDeriving on this class; + the last parameter of ‛Convert’ is at role N + In the newtype declaration for ‛IS_NO_LONGER’ |