content: {-# LANGUAGE LambdaCase, QuasiQuotes, OverloadedStrings #-}
  module PrimOpCCSSpec where
  
  import qualified Data.Text as Text
  import qualified Data.Map as Map
  import qualified Data.Set as Set
  import Data.List (sort)
  import Data.IORef
  import Test.Hspec
  import Test.QuickCheck
  import System.IO
  import Text.Show.Pretty (pPrint, ppShow)
  import Text.PrettyPrint.ANSI.Leijen
  
  import Lambda.TH
  import Lambda.ControlFlowAnalysisM
  import Grin.Pretty (PP(..))
  
  runTests :: IO ()
  runTests = hspec spec
  
  spec :: Spec
  spec = do
    ----------------------------
    usedRules <- runIO $ newIORef (Set.empty :: Set.Set [Text.Text])
  
    let filterAndSort keys m = fmap sort $ Map.restrictKeys m (Set.fromList keys)
  
        sameAs :: Show a => a -> a -> IO ()
        sameAs a b = (PP (ppShow a)) `shouldBe` (PP (ppShow b))
  
        toCCSOp = filterAndSort ["NodeOrigin", "ExternalOrigin", "TagValue"]
        addUsedM a = modifyIORef usedRules (\x -> mappend x . Set.fromList . head . Map.elems . filterAndSort ["Used"] $ a)
        printUsedM = readIORef usedRules >>= pPrint
  
    ----------------------------
  
    describe "GHC CCS PrimOps" $ do
  
      it "clearCCS#" $ do
        cfa <- controlFlowAnalysisM ["main"] [prog|
            primop effectful
              "clearCCS#" :: (tf.4 : {"State#" {RealWorld} @ t.14} @ t.13 -> {"GHC.Prim.Unit#" %a.1} @ t.15) -> {"State#" {RealWorld} @ t.17} @ t.16 -> {"GHC.Prim.Unit#" %a.1} @ t.18
  
            main =
              letS
                v00 = #T_Token "RealWorld"
                v01 = "clearCCS#" $ fun1 v00
                v02 = case v01 of
                  ("GHC.Prim.Unit#" v03) @ a00 ->
                    v03
              v02
            fun1 p10 =
              letS
                v10 = #T_Int64 0
                v11 = ["GHC.Prim.Unit#" v10]
              v11
          |]
        addUsedM cfa
        toCCSOp cfa `sameAs` Map.fromList
          [ ( "ExternalOrigin"
            , [ [ "a00" , "v01" , "t.18" ]
              , [ "v01" , "v01" , "t.18" ]
              , [ "v02" , "v01" , "a.1" ]
              , [ "v03" , "v01" , "a.1" ]
              ]
            )
          , ( "NodeOrigin"
            , [ [ "a00" , "v11" ]
              , [ "p10" , "v00" ]
              , [ "v00" , "v00" ]
              , [ "v01" , "v11" ]
              , [ "v02" , "v10" ]
              , [ "v03" , "v10" ]
              , [ "v10" , "v10" ]
              , [ "v11" , "v11" ]
              ]
            )
          , ( "TagValue"
            , [ [ "a00" , "GHC.Prim.Unit#" ]
              , [ "p10" , "lit:T_Token \"RealWorld\"" ]
              , [ "v00" , "lit:T_Token \"RealWorld\"" ]
              , [ "v01" , "GHC.Prim.Unit#" ]
              , [ "v02" , "lit:T_Int64" ]
              , [ "v03" , "lit:T_Int64" ]
              , [ "v10" , "lit:T_Int64" ]
              , [ "v11" , "GHC.Prim.Unit#" ]
              ]
            )
          ]
  
    describe "Coverage" $ do
      it "Used Rules" $ do
        printUsedM
  