Changes between Version 37 and Version 38 of Commentary/Compiler/GenericDeriving


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Timestamp:
May 9, 2011 7:45:46 AM (4 years ago)
Author:
dreixel
Comment:

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  • Commentary/Compiler/GenericDeriving

    v37 v38  
    77== Main components ==
    88
    9  * `TcDeriv.tcDeriving` generates an `InstInfo` for each data type that fulfills the `isRep0` predicate. This `InstInfo` is the `Generic` instance for that type, allowing it to be handled generically (by kind-`*` generic functions).
     9 * `TcDeriv.tcDeriving` now allows deriving `Generic` instances.
    1010
    1111 * The representation types and core functionality of the library live on `GHC.Generics` (on the `ghc-prim` package).
     
    2121   * `HsNumTy` constructor from `HsType`;
    2222   * `TypePat` constructor from `Pat`.
     23
     24 * The `-XGenerics` flag is now deprecated.
    2325
    2426== What already works ==