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1. DerivErrMustHaveExactlyOneConstructor :: TyCon -> DeriveInstanceErrReason

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

   The given TyCon must have precisely one constructor.

2. DerivErrMustHaveSomeParameters :: TyCon -> DeriveInstanceErrReason

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

   The given data type must have some parameters.

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

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

   The given data type must not have a class context.

4. DerivErrNewtypeNonDeriveableClass :: DeriveInstanceErrReason

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

   No documentation available.

5. DerivErrNoConstructors :: TyCon -> DeriveInstanceErrReason

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

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

6. DerivErrNoEtaReduce :: Type -> DeriveInstanceErrReason

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

   The instance type | We cannot derive instances in boot files

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

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

   No documentation available.

8. DerivErrNotAClass :: PredType -> DeriveInstanceErrReason

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

   The given PredType is not a class.

9. DerivErrNotDeriveable :: DeriveAnyClassEnabled -> DeriveInstanceErrReason

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

   No documentation available.

10. DerivErrNotStockDeriveable :: DeriveAnyClassEnabled -> DeriveInstanceErrReason

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

    No documentation available.

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