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Diffstat (limited to 'testsuite/tests/roles/should_compile/T20999.hs')
| -rw-r--r-- | testsuite/tests/roles/should_compile/T20999.hs | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/testsuite/tests/roles/should_compile/T20999.hs b/testsuite/tests/roles/should_compile/T20999.hs new file mode 100644 index 0000000000..a698bb1ae2 --- /dev/null +++ b/testsuite/tests/roles/should_compile/T20999.hs @@ -0,0 +1,10 @@ +{-# LANGUAGE RoleAnnotations #-} +module T20999 where + +type T a = Int + +type role M nominal phantom +data M f a = MkM (f (T a)) + +type role N nominal phantom +data N f a = MkN (f Int) |