content: {-# LANGUAGE LambdaCase, QuasiQuotes, OverloadedStrings #-}
  module PrimOpStablePtrSpec 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))
  
        toMVOp = filterAndSort ["NodeOrigin", "ExternalOrigin", "TagValue", "StablePtr"]
        addUsedM a = modifyIORef usedRules (\x -> mappend x . Set.fromList . head . Map.elems . filterAndSort ["Used"] $ a)
        printUsedM = readIORef usedRules >>= pPrint
  
    ----------------------------
  
    describe "GHC StablePtr PrimOps" $ do
  
      it "makeStablePtr#" $ do
        cfa <- controlFlowAnalysisM ["main"] [prog|
            primop effectful
              "makeStablePtr#" :: %a.6 -> {"State#" %s.2} @ t.107 -> {"GHC.Prim.Unit#" {"StablePtr#" %s.2 %a.6} @ t.109} @ t.108
            main =
              letS
                v01 = [Tup0]
                v02 = #T_Token "RealWorld"
                v03 = "makeStablePtr#" $ v01 v02
                v05 = case v03 of
                  ("GHC.Prim.Unit#" v04) @ a00 ->
                    v04
              v05
          |]
        addUsedM cfa
        toMVOp cfa `sameAs` Map.fromList
          [ ( "StablePtr" , [ [ "v01" ] ] )
          , ( "ExternalOrigin"
            , [ [ "a00" , "v03" , "t.108" ]
              , [ "v03" , "v03" , "t.108" ]
              , [ "v04" , "v03" , "t.109" ]
              , [ "v05" , "v03" , "t.109" ]
              ]
            )
          , ( "NodeOrigin"
            , [ [ "v01" , "v01" ]
              , [ "v02" , "v02" ]
              ]
            )
          , ( "TagValue"
            , [ [ "a00" , "GHC.Prim.Unit#" ]
              , [ "v01" , "Tup0" ]
              , [ "v02" , "lit:T_Token \"RealWorld\"" ]
              , [ "v03" , "GHC.Prim.Unit#" ]
              , [ "v04" , "StablePtr#" ]
              , [ "v05" , "StablePtr#" ]
              ]
            )
          ]
  
      it "deRefStablePtr#" $ do
        cfa <- controlFlowAnalysisM ["main"] [prog|
            primop effectful
              "makeStablePtr#" :: %a.6 -> {"State#" %s.2} @ t.107 -> {"GHC.Prim.Unit#" {"StablePtr#" %s.2 %a.6} @ t.109} @ t.108
              "deRefStablePtr#" :: {"StablePtr#" %s.21 %a.11} @ t.243 -> {"State#" %s.21} @ t.245 -> {"GHC.Prim.Unit#" %a.11} @ t.246
            main =
              letS
                v01 = [Tup0]
                v02 = #T_Token "RealWorld"
                v03 = "makeStablePtr#" $ v01 v02
                v09 = case v03 of
                  ("GHC.Prim.Unit#" v04) @ a00 ->
                    letS
                      v06 = "deRefStablePtr#" $ v04 v02
                      v08 = case v06 of
                        ("GHC.Prim.Unit#" v07) @ a01 ->
                          v07
                    v08
              v09
          |]
        addUsedM cfa
        toMVOp cfa `sameAs` Map.fromList
          [ ( "StablePtr" , [ [ "v01" ] ] )
          , ( "ExternalOrigin"
            , [ [ "a00" , "v03" , "t.108" ]
              , [ "a01" , "v06" , "t.246" ]
              , [ "v03" , "v03" , "t.108" ]
              , [ "v04" , "v03" , "t.109" ]
              , [ "v06" , "v06" , "t.246" ]
              , [ "v07" , "v06" , "a.11" ]
              , [ "v08" , "v06" , "a.11" ]
              , [ "v09" , "v06" , "a.11" ]
              ]
            )
          , ( "NodeOrigin"
            , [ [ "v01" , "v01" ]
              , [ "v02" , "v02" ]
              , [ "v07" , "v01" ]
              , [ "v08" , "v01" ]
              , [ "v09" , "v01" ]
              ]
            )
          , ( "TagValue"
            , [ [ "a00" , "GHC.Prim.Unit#" ]
              , [ "a01" , "GHC.Prim.Unit#" ]
              , [ "v01" , "Tup0" ]
              , [ "v02" , "lit:T_Token \"RealWorld\"" ]
              , [ "v03" , "GHC.Prim.Unit#" ]
              , [ "v04" , "StablePtr#" ]
              , [ "v06" , "GHC.Prim.Unit#" ]
              , [ "v07" , "Tup0" ]
              , [ "v08" , "Tup0" ]
              , [ "v09" , "Tup0" ]
              ]
            )
          ]
  
    describe "Coverage" $ do
      it "Used Rules" $ do
        printUsedM
  