Changes between Version 90 and Version 91 of TypeFunctionsStatus


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Timestamp:
Sep 15, 2006 1:07:30 AM (9 years ago)
Author:
chak
Comment:

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  • TypeFunctionsStatus

    v90 v91  
    55'''Current:'''
    66 * Overlap check for data/newtype instances.
    7    1. Routine that checks two `FamInst`s for overlap.  Use it as part of the implementation of `addFamInsts`, called in `TcInstDcls.tcInstDecls1`.  (Also extend `TcRnTypes.TcGblEnv` by a field containing a family instance environment.)
     7   1. Routine that checks two `FamInst`s for overlap.  See comment in `FamInst.addLocalFamInst` for what is missing.
    88   2. In `M.hi` store the names of all modules below (and including `M`) that contain family instances.  Invariant: if `M` compiles, then none of those modlues have overlaps.
    99   3. When compiling a new module `K`, union the sets from direct imports, plus `K` itself if it has family instances.  If that union is a subset of any of the incoming ones, nothing to do!  Otherwise, further checking needed.