{-# LANGUAGE Safe #-} {-# OPTIONS_HADDOCK not-home #-} {-| This module exports: - The 'TypeError' type family, which is used to provide custom type errors. This is a type-level analogue to the term level error function. - The 'ErrorMessage' kind, used to define custom error messages. - The 'Unsatisfiable' constraint, a more principled variant of 'TypeError' which gives a more predictable way of reporting custom type errors. @since 4.17.0.0 -} module GHC.TypeError ( ErrorMessage (..) , TypeError , Assert , Unsatisfiable, unsatisfiable ) where import GHC.Internal.TypeError