Can anyone tell me what the Finfo flags field means and is used for?
The C runtime defines this enum, which I assume is related:
enum FInfoFlags { FFL_NONE = 0x00, FFL_INVIS = 0x01, FFL_LAMBDA = 0x02, FFL_PRIM_APPLY = 0x04 };
They were added in about May, and seem to relate to Hat, based on patch comments.
Sorry Rob, Took me a while to spot this email. It's entirely Hat related, FFL_INVIS means treat this function as though it didn't exist from a tracing point of view. FFL_LAMBDA means this is a lambda function so don't try to trace it's name or anything. FFL_PRIM_APPLY means this is the special inbuilt apply function that is so special you can't even write it in Haskell. So please trace it specially. Thanks Tom