Hi Alex,
Do you have a concrete example? With the -dcore-lint flag, the Core is checked, including all the roles.
Thanks,
Richard
On Aug 16, 2015, at 7:47 AM, Alexander Eyers-Taylor
Hello
I have noticed in looking at some core that GADT type constructors are often applied with a representational role. These constructors are explicitly marked as nominal.
Is this information just ignored at a Core level or is this invalid core?
Looking at the code a see that we if we downgrade a TyConAppCo we unconditionally change it to a representational role after changing its children. I think this is where it is introduced.
Alex ET _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs