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module Grasp.GNode (
GNode,
Instruction,
mkGNode,
mkInst,
toNode,
toInst,
toLNode,
instToFloat
) where
import Grasp.Graph( Node, LNode )
import Text.Read( readMaybe )
newtype Instruction = Instruction String
deriving (Show, Eq)
newtype GNode = GNode (LNode Instruction)
deriving (Show, Eq)
mkGNode :: LNode Instruction -> GNode
mkGNode = GNode
mkInst :: String -> Instruction
mkInst = Instruction
toNode :: GNode -> Node
toNode (GNode n) = fst n
toInst :: GNode -> Instruction
toInst (GNode n) = snd n
toLNode :: GNode -> LNode Instruction
toLNode (GNode n) = n
instToFloat :: Instruction -> Maybe Float
instToFloat (Instruction i) = readMaybe i
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