Changes between Version 197 and Version 198 of TypeFunctionsStatus

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Timestamp:
09/06/07 01:47:51 (6 years ago)
Author:
chak
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  • TypeFunctionsStatus

    v197 v198  
    2525    * In `TcUnify`, make all occurs checks more elaborate.  They should only '''defer''' if the checked variable occurs as part of an argument to a type family application; in other cases, still fail right away. 
    2626    * `TcGadt.tcUnifyTys` can now probably be replaced again by the non-side-effecting unifier that was in `types/Unify.hs` (recover from previous repo states). 
     27 0. What about filtering the `EqInst`s in `TcSimplify.addSCs`.  We need them, don't we?  But they give rise to `Var`s, not `Id`s, and we haven't got selectors. 
    2728 0. Emit a warning if there are two ''identical'' type instances. 
    2829