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-{-|
-Module : VeriSmith.Circuit.Base
-Description : Base types for the circuit module.
-Copyright : (c) 2019, Yann Herklotz Grave
-License : GPL-3
-Maintainer : yann [at] yannherklotz [dot] com
-Stability : experimental
-Portability : POSIX
-
-Base types for the circuit module.
--}
-
-module VeriSmith.Circuit.Base
- ( Gate(..)
- , Circuit(..)
- , CNode(..)
- , CEdge(..)
- )
-where
-
-import Data.Graph.Inductive (Gr, LEdge, LNode)
-import System.Random
-
--- | The types for all the gates.
-data Gate = And
- | Or
- | Xor
- deriving (Show, Eq, Enum, Bounded, Ord)
-
--- | Newtype for the Circuit which implements a Graph from fgl.
-newtype Circuit = Circuit { getCircuit :: Gr Gate () }
-
--- | Newtype for a node in the circuit, which is an 'LNode Gate'.
-newtype CNode = CNode { getCNode :: LNode Gate }
-
--- | Newtype for a named edge which is empty, as it does not need a label.
-newtype CEdge = CEdge { getCEdge :: LEdge () }
-
-instance Random Gate where
- randomR (a, b) g =
- case randomR (fromEnum a, fromEnum b) g of
- (x, g') -> (toEnum x, g')
-
- random = randomR (minBound, maxBound)