GHC.SourceGen.Type

This module provides combinators for constructing Haskell types.

Documentation

tyPromotedVar :: RdrNameStr -> HsType'

A promoted name, for example from the DataKinds extension.

stringTy :: String -> HsType'

numTy :: Integer -> HsType'

listTy :: HsType' -> HsType'

listPromotedTy :: [HsType'] -> HsType'

(-->) :: HsType' -> HsType' -> HsType' infixr 0

A function type.

a -> b
=====
var "a" --> var "b"

forall' :: [HsTyVarBndr'] -> HsType' -> HsType'

(==>) :: [HsType'] -> HsType' -> HsType'

Qualify a type with constraints.

(F x, G x) => x
=====
[var "F" @@ var "x", var "G" @@ var "x"] ==> var "x"