\section[PrelInfo]{The @PrelInfo@ interface to the compiler's prelude knowledge}
\begin{code}
-{-# OPTIONS -w #-}
--- The above warning supression flag is a temporary kludge.
--- While working on this module you are encouraged to remove it and fix
--- any warnings in the module. See
--- http://hackage.haskell.org/trac/ghc/wiki/CodingStyle#Warnings
--- for details
-
module PrelInfo (
module MkId,
Notes about wired in things
~~~~~~~~~~~~~~~~~~~~~~~~~~~
-* Wired-in things are Ids/TyCons that are completely known to the compiler.
+* Wired-in things are Ids\/TyCons that are completely known to the compiler.
They are global values in GHC, (e.g. listTyCon :: TyCon).
* A wired in Name contains the thing itself inside the Name:
isNumericClass clas = classKey clas `is_elem` numericClassKeys
isStandardClass clas = classKey clas `is_elem` standardClassKeys
+
+is_elem :: Eq a => a -> [a] -> Bool
is_elem = isIn "is_X_Class"
\end{code}