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  1. DerivErrHasAssociatedDatatypes :: HasAssociatedDataFamInsts -> AssociatedTyLastVarInKind -> AssociatedTyNotParamOverLastTyVar -> DeriveInstanceErrReason

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

    No documentation available.

  2. DerivErrLangExtRequired :: Extension -> DeriveInstanceErrReason

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

    No documentation available.

  3. DerivErrLastArgMustBeApp :: DeriveInstanceErrReason

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

    Last arg must be newtype or data application

  4. DerivErrMustBeEnumType :: TyCon -> DeriveInstanceErrReason

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

    The given TyCon must be an enumeration. See Note [Enumeration types] in GHC.Core.TyCon

  5. DerivErrMustHaveExactlyOneConstructor :: TyCon -> DeriveInstanceErrReason

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

    The given TyCon must have precisely one constructor.

  6. DerivErrMustHaveSomeParameters :: TyCon -> DeriveInstanceErrReason

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

    The given data type must have some parameters.

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

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

    The given data type must not have a class context.

  8. DerivErrNewtypeNonDeriveableClass :: DeriveInstanceErrReason

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

    No documentation available.

  9. DerivErrNoConstructors :: TyCon -> DeriveInstanceErrReason

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

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

  10. DerivErrNoEtaReduce :: Type -> DeriveInstanceErrReason

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

    The instance type | We cannot derive instances in boot files

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