Changes between Version 189 and Version 190 of TypeFunctionsStatus


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Timestamp:
Sep 4, 2007 3:19:29 AM (7 years ago)
Author:
chak
Comment:

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  • TypeFunctionsStatus

    v189 v190  
    77 0. Check that the restrictions on equality constraints in instance and class contexts are enforced.  We should have tests for that in the testsuite.  Document the exact restrictions on the Haskell wiki tutorial page. 
    88 0. `boxySplitTyConApp` and friends must be able to deal with `orig_ty`s that have outermost type family applications; i.e., they need to try to normalise and possibly have to defer.  They also need to defer on skolems.  Consequently, they also need to return a coercion.  This , in particular, affects the treatment of literal lists, parallel arrays, and tuples in`TcExpr.tcExpr` is fishy. 
     9 0. Can't we now allow non-left-linear declarations; e.g., `instance type F a a = ..`? 
    910 0. Fix export list problem (ie, export of data constructors introduced by orphan data instances): 
    1011   * Change `HscTypes.IfaceExport` to use `Name` instead of `OccName`.