Changes between Version 70 and Version 71 of TypeFunctionsStatus

Timestamp:

08/26/06 18:51:41 (7 years ago)

Author:

chak

Comment:

--

TypeFunctionsStatus

@@ -30 +30 @@
  * Check that the arguments of AT instances coincide with the respective instance arguments of their class.
  * Check that each class instance has a definition for every AT and conversely that that all defined associated types are, in fact, part of the class. (Do this in the type checker - GHC does the corresponding checks for methods in the type checker, too.)
- * Families declared as an AT, may not receive toplevel type instances.
  * For each case scrutinising an associated data type, check that all constructors have been defined in a single instance.  (Maybe we can just extend the existing check that ensures that case expressions don't mix constructors of different data types.)
  * RHS of a `type instance` must be a tau type.