Copyright | (C) 2015-2017 Ryan Scott |
---|---|
License | BSD-style (see the file LICENSE) |
Maintainer | Ryan Scott |
Portability | Template Haskell |
Safe Haskell | None |
Language | Haskell2010 |
Exports functions to mechanically derive EqClass
, Eq1
, and Eq2
instances.
Note: this is an internal module, and as such, the API presented here is not guaranteed to be stable, even between minor releases of this library.
EqClass
deriveEq :: Name -> Q [Dec] Source #
Generates an EqClass
instance declaration for the given data type or data
family instance.
makeEq :: Name -> Q Exp Source #
Generates a lambda expression which behaves like '(==)' (without
requiring an EqClass
instance).
makeNotEq :: Name -> Q Exp Source #
Generates a lambda expression which behaves like '(/=)' (without
requiring an EqClass
instance).
Eq1
deriveEq1 :: Name -> Q [Dec] Source #
Generates an Eq1
instance declaration for the given data type or data
family instance.
makeLiftEq :: Name -> Q Exp Source #
Generates a lambda expression which behaves like liftEq
(without
requiring an Eq1
instance).
This function is not available with transformers-0.4
.
makeEq1 :: Name -> Q Exp Source #
Generates a lambda expression which behaves like eq1
(without
requiring an Eq1
instance).
Eq2
deriveEq2 :: Name -> Q [Dec] Source #
Generates an Eq2
instance declaration for the given data type or data
family instance.
This function is not available with transformers-0.4
.