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  1. DerivErrMustNotHaveClassContext :: TyCon -> ThetaType -> DeriveInstanceErrReason

    ghc-lib-parser GHC.Tc.Errors.Types

    The given data type must not have a class context.

  2. DerivErrNewtypeNonDeriveableClass :: DeriveInstanceErrReason

    ghc-lib-parser GHC.Tc.Errors.Types

    No documentation available.

  3. DerivErrNoConstructors :: TyCon -> DeriveInstanceErrReason

    ghc-lib-parser GHC.Tc.Errors.Types

    The given (representation of the) TyCon has no data constructors.

  4. DerivErrNoEtaReduce :: Type -> DeriveInstanceErrReason

    ghc-lib-parser GHC.Tc.Errors.Types

    The instance type | We cannot derive instances in boot files

  5. DerivErrNoFamilyInstance :: TyCon -> [Type] -> DeriveInstanceErrReason

    ghc-lib-parser GHC.Tc.Errors.Types

    No documentation available.

  6. DerivErrNotAClass :: PredType -> DeriveInstanceErrReason

    ghc-lib-parser GHC.Tc.Errors.Types

    The given PredType is not a class.

  7. DerivErrNotDeriveable :: DeriveAnyClassEnabled -> DeriveInstanceErrReason

    ghc-lib-parser GHC.Tc.Errors.Types

    No documentation available.

  8. DerivErrNotStockDeriveable :: DeriveAnyClassEnabled -> DeriveInstanceErrReason

    ghc-lib-parser GHC.Tc.Errors.Types

    No documentation available.

  9. DerivErrNotWellKinded :: TyCon -> Kind -> Int -> DeriveInstanceErrReason

    ghc-lib-parser GHC.Tc.Errors.Types

    The typeclass instance is not well-kinded.

  10. DerivErrNullaryClasses :: DeriveInstanceErrReason

    ghc-lib-parser GHC.Tc.Errors.Types

    We cannot derive instances of nullary classes

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