Support Cairo VM input hints (#2709)

* Closes #2687 
* Adds hint support in CASM. The supported hints are `Input(var)` and
`Alloc(size)`. These are the hints currently implemented in
[juvix-cairo-vm](https://github.com/anoma/juvix-cairo-vm).
* Adds the `--program_input` option to the `juvix dev casm run` command.
* Enables private inputs via `main` arguments. In generated CASM/Cairo
code, the arguments to `main` are fetched using the `Input` hint.
* Modifies the CI to use
[juvix-cairo-vm](https://github.com/anoma/juvix-cairo-vm)

.github/workflows/ci.yml

@@ -26,7 +26,7 @@ env:
   SKIP: ormolu,format-juvix-files,typecheck-juvix-examples
   VAMPIRREPO: anoma/vamp-ir
   VAMPIRVERSION: v0.1.3
-  CAIRO_VM_VERSION: 42e04161de82d7e5381258def4b65087c8944660
+  CAIRO_VM_VERSION: ae06ba04f3b6864546b6baeeebf1b0735ddccb5d
 
 jobs:
   pre-commit:
@@ -127,7 +127,7 @@ jobs:
         id: cache-cairo-vm
         uses: actions/cache@v4
         with:
-          path: ${{ env.HOME }}/.local/bin/cairo-vm-cli
+          path: ${{ env.HOME }}/.local/bin/juvix-cairo-vm
           key: ${{ runner.os }}-cairo-vm-${{ env.CAIRO_VM_VERSION }}
 
       - name: Install Rust toolchain
@@ -138,17 +138,17 @@ jobs:
         uses: actions/checkout@v4
         if: steps.cache-cairo-vm.outputs.cache-hit != 'true'
         with:
-          repository: lambdaclass/cairo-vm
-          path: cairo-vm
+          repository: anoma/juvix-cairo-vm
+          path: juvix-cairo-vm
           ref: ${{ env.CAIRO_VM_VERSION }}
 
       - name: Install Cairo VM
         if: steps.cache-cairo-vm.outputs.cache-hit != 'true'
         shell: bash
         run: |
-          cd cairo-vm
+          cd juvix-cairo-vm
           cargo build --release
-          cp target/release/cairo-vm-cli $HOME/.local/bin/cairo-vm-cli
+          cp target/release/juvix-cairo-vm $HOME/.local/bin/juvix-cairo-vm
 
       - name: Install run_cairo_vm.sh
         shell: bash
@@ -323,7 +323,7 @@ jobs:
         id: cache-cairo-vm
         uses: actions/cache@v4
         with:
-          path: ${{ env.HOME }}/.local/bin/cairo-vm-cli
+          path: ${{ env.HOME }}/.local/bin/juvix-cairo-vm
           key: ${{ runner.os }}-cairo-vm-${{ env.CAIRO_VM_VERSION }}
 
       - name: Install Rust toolchain
@@ -334,24 +334,22 @@ jobs:
         uses: actions/checkout@v4
         if: steps.cache-cairo-vm.outputs.cache-hit != 'true'
         with:
-          repository: lambdaclass/cairo-vm
-          path: cairo-vm
+          repository: anoma/juvix-cairo-vm
+          path: juvix-cairo-vm
           ref: ${{ env.CAIRO_VM_VERSION }}
 
       - name: Install Cairo VM
         if: steps.cache-cairo-vm.outputs.cache-hit != 'true'
         shell: bash
         run: |
-          cd cairo-vm
+          cd juvix-cairo-vm
           cargo build --release
-          cp -a target/release/cairo-vm-cli $HOME/.local/bin/cairo-vm-cli
-          chmod a+x $HOME/.local/bin/cairo-vm-cli
+          cp -a target/release/juvix-cairo-vm $HOME/.local/bin/juvix-cairo-vm
 
       - name: Install run_cairo_vm.sh
         shell: bash
         run: |
           cp -a main/scripts/run_cairo_vm.sh $HOME/.local/bin/run_cairo_vm.sh
-          chmod a+x $HOME/.local/bin/run_cairo_vm.sh
 
       - name: Make runtime
         run: |

app/Commands/Dev/Casm/Run.hs

@@ -2,6 +2,7 @@ module Commands.Dev.Casm.Run where
 
 import Commands.Base
 import Commands.Dev.Casm.Run.Options
+import Juvix.Compiler.Casm.Extra.InputInfo qualified as Casm
 import Juvix.Compiler.Casm.Interpreter qualified as Casm
 import Juvix.Compiler.Casm.Translation.FromSource qualified as Casm
 import Juvix.Compiler.Casm.Validate qualified as Casm
@@ -9,13 +10,15 @@ import Juvix.Compiler.Casm.Validate qualified as Casm
 runCommand :: forall r. (Members '[EmbedIO, App] r) => CasmRunOptions -> Sem r ()
 runCommand opts = do
   afile :: Path Abs File <- fromAppPathFile file
+  dfile :: Maybe (Path Abs File) <- maybe (return Nothing) (fromAppPathFile >=> return . Just) (opts ^. casmRunDataFile)
+  inputInfo <- liftIO (Casm.readInputInfo dfile)
   s <- readFile afile
   case Casm.runParser afile s of
     Left err -> exitJuvixError (JuvixError err)
     Right (labi, code) ->
       case Casm.validate labi code of
         Left err -> exitJuvixError (JuvixError err)
-        Right () -> print (Casm.runCode labi code)
+        Right () -> print (Casm.runCode inputInfo labi code)
   where
     file :: AppPath File
     file = opts ^. casmRunInputFile

app/Commands/Dev/Casm/Run/Options.hs

@@ -2,8 +2,9 @@ module Commands.Dev.Casm.Run.Options where
 
 import CommonOptions
 
-newtype CasmRunOptions = CasmRunOptions
-  { _casmRunInputFile :: AppPath File
+data CasmRunOptions = CasmRunOptions
+  { _casmRunInputFile :: AppPath File,
+    _casmRunDataFile :: Maybe (AppPath File)
   }
   deriving stock (Data)
 
@@ -12,4 +13,5 @@ makeLenses ''CasmRunOptions
 parseCasmRunOptions :: Parser CasmRunOptions
 parseCasmRunOptions = do
   _casmRunInputFile <- parseInputFile FileExtCasm
+  _casmRunDataFile <- optional parseProgramInputFile
   pure CasmRunOptions {..}

app/CommonOptions.hs

@@ -51,6 +51,19 @@ parseInputFiles exts' = do
 parseInputFile :: FileExt -> Parser (AppPath File)
 parseInputFile = parseInputFiles . NonEmpty.singleton
 
+parseProgramInputFile :: Parser (AppPath File)
+parseProgramInputFile = do
+  _pathPath <-
+    option
+      somePreFileOpt
+      ( long "program_input"
+          <> metavar "JSON_FILE"
+          <> help "Path to program input json file"
+          <> completer (extCompleter FileExtJson)
+          <> action "file"
+      )
+  pure AppPath {_pathIsInput = True, ..}
+
 parseGenericInputFile :: Parser (AppPath File)
 parseGenericInputFile = do
   _pathPath <-

package.yaml

@@ -84,6 +84,7 @@ dependencies:
   - primitive == 0.8.*
   - process == 1.6.*
   - safe == 0.3.*
+  - scientific == 0.3.*
   - singletons == 3.0.*
   - singletons-base == 3.3.*
   - singletons-th == 3.3.*

scripts/run_cairo_vm.sh

@@ -2,4 +2,4 @@
 
 BASE=`basename "$1" .json`
 
-cairo-vm-cli "$1" --print_output --proof_mode --trace_file ${BASE}.trace --air_public_input=${BASE}_public_input.json --air_private_input=${BASE}_private_input.json --memory_file=${BASE}_memory.mem --layout=small
+juvix-cairo-vm "$@" --print_output --proof_mode --trace_file ${BASE}.trace --air_public_input=${BASE}_public_input.json --air_private_input=${BASE}_private_input.json --memory_file=${BASE}_memory.mem --layout=small

src/Juvix/Compiler/Backend/Cairo/Data/Result.hs

@@ -1,6 +1,8 @@
 module Juvix.Compiler.Backend.Cairo.Data.Result where
 
 import Data.Aeson as Aeson hiding (Result)
+import Data.Aeson.Types hiding (Result)
+import Data.Vector qualified as V
 import Juvix.Prelude hiding ((.=))
 
 data Result = Result
@@ -8,6 +10,7 @@ data Result = Result
     _resultStart :: Int,
     _resultEnd :: Int,
     _resultMain :: Int,
+    _resultHints :: [(Int, Text)],
     _resultBuiltins :: [Text]
   }
 
@@ -19,7 +22,7 @@ instance ToJSON Result where
       [ "data" .= toJSON _resultData,
         "attributes" .= Array mempty,
         "builtins" .= toJSON _resultBuiltins,
-        "hints" .= object [],
+        "hints" .= object (map mkHint _resultHints),
         "identifiers"
           .= object
             [ "__main__.__start__"
@@ -46,3 +49,21 @@ instance ToJSON Result where
             [ "references" .= Array mempty
             ]
       ]
+    where
+      mkHint :: (Int, Text) -> Pair
+      mkHint (pc, hintCode) = (fromString (show pc), Array $ V.fromList [hint])
+        where
+          hint =
+            object
+              [ "accessible_scopes" .= Array mempty,
+                "code" .= hintCode,
+                "flow_tracking_data"
+                  .= object
+                    [ "ap_tracking"
+                        .= object
+                          [ "group" .= Number 0,
+                            "offset" .= Number 0
+                          ],
+                      "reference_ids" .= object []
+                    ]
+              ]

src/Juvix/Compiler/Backend/Cairo/Extra/Serialization.hs

@@ -16,9 +16,21 @@ serialize elems =
       _resultStart = 0,
       _resultEnd = length initializeOutput + length elems + length finalizeOutput,
       _resultMain = 0,
+      _resultHints = hints,
       _resultBuiltins = ["output"]
     }
   where
+    hints :: [(Int, Text)]
+    hints = catMaybes $ zipWith mkHint elems [0 ..]
+
+    pcShift :: Int
+    pcShift = length initializeOutput
+
+    mkHint :: Element -> Int -> Maybe (Int, Text)
+    mkHint el pc = case el of
+      ElementHint Hint {..} -> Just (pc + pcShift, _hintCode)
+      _ -> Nothing
+
     toHexText :: Natural -> Text
     toHexText n = "0x" <> fromString (showHex n "")
 
@@ -48,6 +60,12 @@ serialize' = map goElement
     goElement = \case
       ElementInstruction i -> goInstr i
       ElementImmediate f -> fieldToNatural f
+      ElementHint h -> goHint h
+
+    goHint :: Hint -> Natural
+    goHint Hint {..}
+      | _hintIncAp = 0x481280007fff8000
+      | otherwise = 0x401280007fff8000
 
     goInstr :: Instruction -> Natural
     goInstr Instruction {..} =

src/Juvix/Compiler/Backend/Cairo/Language.hs

@@ -22,6 +22,12 @@ import Juvix.Data.Field
 data Element
   = ElementInstruction Instruction
   | ElementImmediate FField
+  | ElementHint Hint
+
+data Hint = Hint
+  { _hintCode :: Text,
+    _hintIncAp :: Bool
+  }
 
 data Instruction = Instruction
   { _instrOffDst :: Offset,
@@ -80,3 +86,4 @@ defaultInstruction =
     }
 
 makeLenses ''Instruction
+makeLenses ''Hint

src/Juvix/Compiler/Backend/Cairo/Translation/FromCasm.hs

@@ -42,6 +42,7 @@ fromCasm instrs0 =
       Casm.Call x -> goCall x
       Casm.Return -> goReturn
       Casm.Alloc x -> goAlloc x
+      Casm.Hint x -> goHint x
       Casm.Trace {} -> []
       Casm.Label {} -> []
       Casm.Nop -> []
@@ -228,3 +229,8 @@ fromCasm instrs0 =
             . updateOps False _instrAllocSize
             . set instrApUpdate ApUpdateAdd
             $ defaultInstruction
+
+        goHint :: Casm.Hint -> [Element]
+        goHint = \case
+          Casm.HintInput var -> [ElementHint (Hint ("Input(" <> var <> ")") True)]
+          Casm.HintAlloc size -> [ElementHint (Hint ("Alloc(" <> show size <> ")") True)]

src/Juvix/Compiler/Casm/Data/InputInfo.hs

@@ -0,0 +1,38 @@
+module Juvix.Compiler.Casm.Data.InputInfo where
+
+import Data.Aeson
+import Data.Aeson.Key
+import Data.Aeson.KeyMap qualified as KeyMap
+import Data.Aeson.Types
+import Data.HashMap.Strict qualified as HashMap
+import Data.Scientific
+import Juvix.Data.Field
+import Juvix.Prelude
+
+newtype InputInfo = InputInfo
+  { _inputInfoMap :: HashMap Text FField
+  }
+  deriving stock (Generic, Show)
+
+makeLenses ''InputInfo
+
+instance FromJSON InputInfo where
+  parseJSON = \case
+    Object obj -> do
+      lst <-
+        forM (KeyMap.toList obj) $ \(k, v) -> do
+          v' <- parseFField v
+          return (toText k, v')
+      return
+        . InputInfo
+        . HashMap.fromList
+        $ lst
+    v -> typeMismatch "Object" v
+    where
+      parseFField :: Value -> Parser FField
+      parseFField = \case
+        Number x
+          | isInteger x ->
+              return $ fieldFromInteger cairoFieldSize (fromRight 0 $ floatingOrInteger @Double x)
+        v ->
+          typeMismatch "Integer" v

src/Juvix/Compiler/Casm/Extra/InputInfo.hs

@@ -0,0 +1,12 @@
+module Juvix.Compiler.Casm.Extra.InputInfo where
+
+import Juvix.Compiler.Casm.Data.InputInfo
+import Juvix.Prelude
+import Juvix.Prelude.Aeson
+
+readInputInfo :: Maybe (Path Abs File) -> IO InputInfo
+readInputInfo inputFile = case inputFile of
+  Just file ->
+    fromJust <$> readJSONFile (toFilePath file)
+  Nothing ->
+    return $ InputInfo mempty

src/Juvix/Compiler/Casm/Interpreter.hs

@@ -11,6 +11,7 @@ import Data.HashMap.Strict qualified as HashMap
 import Data.Vector qualified as Vec
 import Data.Vector.Mutable qualified as MV
 import GHC.IO qualified as GHC
+import Juvix.Compiler.Casm.Data.InputInfo
 import Juvix.Compiler.Casm.Data.LabelInfo
 import Juvix.Compiler.Casm.Error
 import Juvix.Compiler.Casm.Interpreter.Error
@@ -19,12 +20,12 @@ import Juvix.Data.Field
 
 type Memory s = MV.MVector s (Maybe FField)
 
-runCode :: LabelInfo -> [Instruction] -> FField
+runCode :: InputInfo -> LabelInfo -> [Instruction] -> FField
 runCode = hRunCode stderr
 
 -- | Runs Cairo Assembly. Returns the value of `[ap - 1]` at program exit.
-hRunCode :: Handle -> LabelInfo -> [Instruction] -> FField
-hRunCode hout (LabelInfo labelInfo) instrs0 = runST goCode
+hRunCode :: Handle -> InputInfo -> LabelInfo -> [Instruction] -> FField
+hRunCode hout inputInfo (LabelInfo labelInfo) instrs0 = runST goCode
   where
     instrs :: Vec.Vector Instruction
     instrs = Vec.fromList instrs0
@@ -61,6 +62,7 @@ hRunCode hout (LabelInfo labelInfo) instrs0 = runST goCode
             Return -> goReturn pc ap fp mem
             Alloc x -> goAlloc x pc ap fp mem
             Trace x -> goTrace x pc ap fp mem
+            Hint x -> goHint x pc ap fp mem
             Label {} -> go (pc + 1) ap fp mem
             Nop -> go (pc + 1) ap fp mem
 
@@ -241,6 +243,18 @@ hRunCode hout (LabelInfo labelInfo) instrs0 = runST goCode
       GHC.unsafePerformIO (hPrint hout v >> return (pure ()))
       go (pc + 1) ap fp mem
 
+    goHint :: Hint -> Address -> Address -> Address -> Memory s -> ST s FField
+    goHint hint pc ap fp mem = case hint of
+      HintInput var -> do
+        let val =
+              fromMaybe (throwRunError "invalid input") $
+                HashMap.lookup var (inputInfo ^. inputInfoMap)
+        mem' <- writeMem mem ap val
+        go (pc + 1) (ap + 1) fp mem'
+      HintAlloc size -> do
+        mem' <- writeMem mem ap (fieldFromInteger fsize (fromIntegral ap + 1))
+        go (pc + 1) (ap + size + 1) fp mem'
+
     goFinish :: Address -> Memory s -> ST s FField
     goFinish ap mem = do
       checkGaps mem

src/Juvix/Compiler/Casm/Language.hs

@@ -74,6 +74,10 @@ data ExtraOpcode
   | -- | Sets the result to zero if arg1 < arg2, or to non-zero otherwise
     IntLt
 
+data Hint
+  = HintInput Text
+  | HintAlloc Int
+
 data Instruction
   = Assign InstrAssign
   | -- | Extra binary operation not directly available in Cairo Assembly bytecode,
@@ -85,6 +89,7 @@ data Instruction
   | Return
   | Alloc InstrAlloc
   | Trace InstrTrace
+  | Hint Hint
   | Label LabelRef
   | Nop
 

src/Juvix/Compiler/Casm/Pretty/Base.hs

@@ -96,6 +96,11 @@ instance PrettyCode LoadValue where
     src' <- ppWithOffset _loadValueOff src
     return $ brackets src'
 
+instance PrettyCode Hint where
+  ppCode = \case
+    HintInput var -> return $ "%{ Input(" <> pretty var <> ") %}"
+    HintAlloc size -> return $ "%{ Alloc(" <> show size <> ") %}"
+
 instance PrettyCode InstrAssign where
   ppCode InstrAssign {..} = do
     v <- ppCode _instrAssignValue
@@ -163,5 +168,6 @@ instance PrettyCode Instruction where
     Return -> return Str.ret
     Alloc x -> ppCode x
     Trace x -> ppCode x
+    Hint x -> ppCode x
     Label x -> (<> colon) <$> ppCode x
     Nop -> return Str.nop

src/Juvix/Compiler/Casm/Translation/FromReg.hs

@@ -18,7 +18,11 @@ import Juvix.Data.Field
 
 fromReg :: Reg.InfoTable -> Result
 fromReg tab = uncurry Result $ run $ runLabelInfoBuilderWithNextId (Reg.getNextSymbolId tab) $ do
-  let initialOffset :: Int = 2
+  let mainSym = fromJust $ tab ^. Reg.infoMainFunction
+      mainInfo = fromJust (HashMap.lookup mainSym (tab ^. Reg.infoFunctions))
+      mainName = mainInfo ^. Reg.functionName
+      mainArgs = getInputArgs (mainInfo ^. Reg.functionArgsNum) (mainInfo ^. Reg.functionArgNames)
+      initialOffset = length mainArgs + 2
   (blts, binstrs) <- addStdlibBuiltins initialOffset
   let cinstrs = concatMap (mkFunCall . fst) $ sortOn snd $ HashMap.toList (info ^. Reg.extraInfoFUIDs)
   endSym <- freshSymbol
@@ -28,15 +32,20 @@ fromReg tab = uncurry Result $ run $ runLabelInfoBuilderWithNextId (Reg.getNextS
   eassert (addr == length instrs + length cinstrs + length binstrs + initialOffset)
   registerLabelName endSym endName
   registerLabelAddress endSym addr
-  let mainSym = fromJust $ tab ^. Reg.infoMainFunction
-      mainName = fromJust (HashMap.lookup mainSym (tab ^. Reg.infoFunctions)) ^. Reg.functionName
-      callInstr = mkCallRel (Lab $ LabelRef mainSym (Just mainName))
+  let callInstr = mkCallRel (Lab $ LabelRef mainSym (Just mainName))
       jmpInstr = mkJumpRel (Val $ Lab endLab)
-  return $ callInstr : jmpInstr : binstrs ++ cinstrs ++ instrs ++ [Label endLab]
+      margs = reverse $ map (Hint . HintInput) mainArgs
+  return $ margs ++ callInstr : jmpInstr : binstrs ++ cinstrs ++ instrs ++ [Label endLab]
   where
     info :: Reg.ExtraInfo
     info = Reg.computeExtraInfo tab
 
+    getInputArgs :: Int -> [Maybe Text] -> [Text]
+    getInputArgs n argnames = zipWith fromMaybe args (argnames ++ repeat Nothing)
+      where
+        args :: [Text]
+        args = if n == 1 then ["in"] else map (\k -> "in" <> show k) [1 .. n]
+
     mkFunCall :: Symbol -> [Instruction]
     mkFunCall sym =
       [ mkCallRel $ Lab $ LabelRef sym (Just $ quoteName $ Reg.lookupFunInfo tab sym ^. Reg.functionName),

src/Juvix/Compiler/Casm/Translation/FromSource.hs

@@ -68,7 +68,33 @@ label addr = P.try $ do
 
 instruction :: (Member LabelInfoBuilder r) => ParsecS r Instruction
 instruction =
-  parseNop <|> parseAlloc <|> parseJump <|> parseCall <|> parseReturn <|> parseTrace <|> parseAssign
+  parseHint
+    <|> parseNop
+    <|> parseAlloc
+    <|> parseJump
+    <|> parseCall
+    <|> parseReturn
+    <|> parseTrace
+    <|> parseAssign
+
+parseHint :: ParsecS r Instruction
+parseHint = do
+  symbol "%{"
+  h <- parseHintInput <|> parseHintAlloc
+  symbol "%}"
+  return $ Hint h
+
+parseHintInput :: ParsecS r Hint
+parseHintInput = do
+  symbol "Input"
+  var <- parens identifier
+  return $ HintInput var
+
+parseHintAlloc :: ParsecS r Hint
+parseHintAlloc = do
+  symbol "Alloc"
+  (size, _) <- parens integer
+  return $ HintAlloc (fromInteger size)
 
 parseNop :: ParsecS r Instruction
 parseNop = do

src/Juvix/Compiler/Casm/Validate.hs

@@ -19,6 +19,7 @@ validate labi instrs = mapM_ go instrs
       Return -> return ()
       Alloc x -> goAlloc x
       Trace x -> goTrace x
+      Hint {} -> return ()
       Label {} -> return ()
       Nop -> return ()
 

src/Juvix/Compiler/Core/Extra/Base.hs

@@ -249,6 +249,11 @@ isTypeInteger = \case
   NPrim (TypePrim _ (PrimInteger _)) -> True
   _ -> False
 
+isTypeField :: Type -> Bool
+isTypeField = \case
+  NPrim (TypePrim _ PrimField) -> True
+  _ -> False
+
 isTypeBool :: Type -> Bool
 isTypeBool = \case
   NPrim (TypePrim _ (PrimBool _)) -> True

src/Juvix/Compiler/Core/Transformation/Check/Cairo.hs

@@ -4,10 +4,32 @@ import Juvix.Compiler.Core.Error
 import Juvix.Compiler.Core.Extra
 import Juvix.Compiler.Core.Transformation.Base
 import Juvix.Compiler.Core.Transformation.Check.Base
+import Juvix.Data.PPOutput
 
 checkCairo :: forall r. (Member (Error CoreError) r) => Module -> Sem r Module
 checkCairo md = do
   checkMainExists md
+  checkMainType
   checkNoAxioms md
   mapAllNodesM checkNoIO md
   mapAllNodesM (checkBuiltins' [OpStrConcat, OpStrToInt, OpShow] [PrimString]) md
+  where
+    checkMainType :: Sem r ()
+    checkMainType =
+      unless (checkType (ii ^. identifierType)) $
+        throw
+          CoreError
+            { _coreErrorMsg = ppOutput "for this target the arguments and the result of the `main` function must be numbers or field elements",
+              _coreErrorLoc = fromMaybe defaultLoc (ii ^. identifierLocation),
+              _coreErrorNode = Nothing
+            }
+      where
+        ii = lookupIdentifierInfo md (fromJust (getInfoMain md))
+
+    checkType :: Node -> Bool
+    checkType ty =
+      let (tyargs, tgt) = unfoldPi' ty
+       in all isPrimIntegerOrField (tgt : tyargs)
+      where
+        isPrimIntegerOrField ty' =
+          isTypeInteger ty' || isTypeField ty' || isDynamic ty'

src/Juvix/Compiler/Tree/Translation/FromSource/Base.hs

@@ -142,8 +142,6 @@ statementFunction = do
   args <- functionArguments @t @e @d
   let argtys = map snd args
       argnames = map fst args
-  when (txt == "main" && not (null argtys)) $
-    parseFailure off "the 'main' function must take zero arguments"
   mrty <- optional $ typeAnnotation @t @e @d
   ec <- lift $ emptyCode @t @e @d
   ee <- lift $ emptyExtra @t @e @d

src/Juvix/Prelude/Aeson.hs

@@ -8,9 +8,15 @@ where
 import Data.Aeson
 import Data.Aeson.KeyMap qualified as KeyMap
 import Data.Aeson.Text
+import Data.ByteString.Lazy qualified as BS
 import Data.Text.Lazy qualified as Lazy
 import Juvix.Prelude.Base
 
+readJSONFile :: (FromJSON a) => FilePath -> IO (Maybe a)
+readJSONFile f = do
+  bs <- BS.readFile f
+  return $ decode bs
+
 encodeToText :: (ToJSON a) => a -> Text
 encodeToText = Lazy.toStrict . encodeToLazyText
 

test/Casm/Compilation/Base.hs

@@ -42,4 +42,4 @@ compileAssertionEntry adjustEntry root' bRunVM optLevel mainFile expectedFile st
             step "Pretty print"
             writeFileEnsureLn tmpFile (toPlainText $ ppProgram _resultCode)
         )
-      casmRunAssertion' bRunVM _resultLabelInfo _resultCode expectedFile step
+      casmRunAssertion' bRunVM _resultLabelInfo _resultCode Nothing expectedFile step

test/Casm/Reg/Base.hs

@@ -4,25 +4,31 @@ import Base
 import Casm.Run.Base qualified as Run
 import Data.Aeson
 import Juvix.Compiler.Casm.Data.Result
+import Juvix.Compiler.Casm.Error
 import Juvix.Compiler.Casm.Interpreter
 import Juvix.Compiler.Reg.Data.InfoTable qualified as Reg
 import Juvix.Data.PPOutput
 import Reg.Run.Base qualified as Reg
 
-compileAssertion' :: Path Abs Dir -> Path Abs File -> Symbol -> Reg.InfoTable -> (String -> IO ()) -> Assertion
-compileAssertion' _ outputFile _ tab step = do
+compileAssertion' :: Maybe (Path Abs File) -> Path Abs Dir -> Path Abs File -> Symbol -> Reg.InfoTable -> (String -> IO ()) -> Assertion
+compileAssertion' inputFile _ outputFile _ tab step = do
   step "Translate to CASM"
   case run $ runError @JuvixError $ regToCasm tab of
     Left err -> assertFailure (show (pretty (fromJuvixError @GenericError err)))
     Right Result {..} -> do
       step "Interpret"
       hout <- openFile (toFilePath outputFile) WriteMode
-      let v = hRunCode hout _resultLabelInfo _resultCode
-      hPrint hout v
-      hClose hout
+      rv <- Run.doRun hout _resultLabelInfo _resultCode inputFile
+      case rv of
+        Left e -> do
+          hClose hout
+          assertFailure (show (pretty (fromJuvixError @GenericError (JuvixError @CasmError e))))
+        Right v -> do
+          hPrint hout v
+          hClose hout
 
-cairoAssertion' :: Path Abs Dir -> Path Abs File -> Symbol -> Reg.InfoTable -> (String -> IO ()) -> Assertion
-cairoAssertion' dirPath outputFile _ tab step = do
+cairoAssertion' :: Maybe (Path Abs File) -> Path Abs Dir -> Path Abs File -> Symbol -> Reg.InfoTable -> (String -> IO ()) -> Assertion
+cairoAssertion' inputFile dirPath outputFile _ tab step = do
   step "Translate to Cairo"
   case run $ runError @JuvixError $ regToCairo tab of
     Left err -> assertFailure (show (pretty (fromJuvixError @GenericError err)))
@@ -30,13 +36,13 @@ cairoAssertion' dirPath outputFile _ tab step = do
       step "Serialize to Cairo bytecode"
       encodeFile (toFilePath outputFile) res
       step "Execute in Cairo VM"
-      actualOutput <- Run.casmRunVM' dirPath outputFile
+      actualOutput <- Run.casmRunVM' dirPath outputFile inputFile
       writeFileEnsureLn outputFile actualOutput
 
-regToCasmAssertion :: Path Abs File -> Path Abs File -> (String -> IO ()) -> Assertion
-regToCasmAssertion mainFile expectedFile step =
-  Reg.regRunAssertionParam compileAssertion' mainFile expectedFile [] (const (return ())) step
+regToCasmAssertion :: Path Abs File -> Maybe (Path Abs File) -> Path Abs File -> (String -> IO ()) -> Assertion
+regToCasmAssertion mainFile inputFile expectedFile step =
+  Reg.regRunAssertionParam (compileAssertion' inputFile) mainFile expectedFile [] (const (return ())) step
 
-regToCairoAssertion :: Path Abs File -> Path Abs File -> (String -> IO ()) -> Assertion
-regToCairoAssertion mainFile expectedFile step =
-  Reg.regRunAssertionParam cairoAssertion' mainFile expectedFile [] (const (return ())) step
+regToCairoAssertion :: Path Abs File -> Maybe (Path Abs File) -> Path Abs File -> (String -> IO ()) -> Assertion
+regToCairoAssertion mainFile inputFile expectedFile step =
+  Reg.regRunAssertionParam (cairoAssertion' inputFile) mainFile expectedFile [] (const (return ())) step

test/Casm/Reg/Cairo.hs

@@ -9,10 +9,11 @@ testDescr P.PosTest {..} =
   let tRoot = P.root <//> _relDir
       file' = tRoot <//> _file
       expected' = tRoot <//> _expectedFile
+      input' = fmap (tRoot <//>) _inputFile
    in TestDescr
         { _testName = _name,
           _testRoot = tRoot,
-          _testAssertion = Steps $ regToCairoAssertion file' expected'
+          _testAssertion = Steps $ regToCairoAssertion file' input' expected'
         }
 
 allTests :: TestTree

test/Casm/Reg/Positive.hs

@@ -7,7 +7,8 @@ data PosTest = PosTest
   { _name :: String,
     _relDir :: Path Rel Dir,
     _file :: Path Rel File,
-    _expectedFile :: Path Rel File
+    _expectedFile :: Path Rel File,
+    _inputFile :: Maybe (Path Rel File)
   }
 
 root :: Path Abs Dir
@@ -18,10 +19,11 @@ testDescr PosTest {..} =
   let tRoot = root <//> _relDir
       file' = tRoot <//> _file
       expected' = tRoot <//> _expectedFile
+      input' = fmap (tRoot <//>) _inputFile
    in TestDescr
         { _testName = _name,
           _testRoot = tRoot,
-          _testAssertion = Steps $ regToCasmAssertion file' expected'
+          _testAssertion = Steps $ regToCasmAssertion file' input' expected'
         }
 
 filterOutTests :: [String] -> [PosTest] -> [PosTest]
@@ -39,150 +41,186 @@ tests =
       "Test001: Arithmetic opcodes"
       $(mkRelDir ".")
       $(mkRelFile "test001.jvr")
-      $(mkRelFile "out/test001.out"),
+      $(mkRelFile "out/test001.out")
+      Nothing,
     PosTest
       "Test002: Direct call"
       $(mkRelDir ".")
       $(mkRelFile "test002.jvr")
-      $(mkRelFile "out/test002.out"),
+      $(mkRelFile "out/test002.out")
+      Nothing,
     PosTest
       "Test003: Indirect call"
       $(mkRelDir ".")
       $(mkRelFile "test003.jvr")
-      $(mkRelFile "out/test003.out"),
+      $(mkRelFile "out/test003.out")
+      Nothing,
     PosTest
       "Test004: Tail calls"
       $(mkRelDir ".")
       $(mkRelFile "test004.jvr")
-      $(mkRelFile "out/test004.out"),
+      $(mkRelFile "out/test004.out")
+      Nothing,
     PosTest
       "Test008: Branch"
       $(mkRelDir ".")
       $(mkRelFile "test008.jvr")
-      $(mkRelFile "out/test008.out"),
+      $(mkRelFile "out/test008.out")
+      Nothing,
     PosTest
       "Test009: Case"
       $(mkRelDir ".")
       $(mkRelFile "test009.jvr")
-      $(mkRelFile "out/test009.out"),
+      $(mkRelFile "out/test009.out")
+      Nothing,
     PosTest
       "Test010: Recursion"
       $(mkRelDir ".")
       $(mkRelFile "test010.jvr")
-      $(mkRelFile "out/test010.out"),
+      $(mkRelFile "out/test010.out")
+      Nothing,
     PosTest
       "Test011: Tail recursion"
       $(mkRelDir ".")
       $(mkRelFile "test011.jvr")
-      $(mkRelFile "out/test011.out"),
+      $(mkRelFile "out/test011.out")
+      Nothing,
     PosTest
       "Test012: Temporary stack"
       $(mkRelDir ".")
       $(mkRelFile "test012.jvr")
-      $(mkRelFile "out/test012.out"),
+      $(mkRelFile "out/test012.out")
+      Nothing,
     PosTest
       "Test013: Fibonacci numbers in linear time"
       $(mkRelDir ".")
       $(mkRelFile "test013.jvr")
-      $(mkRelFile "out/test013.out"),
+      $(mkRelFile "out/test013.out")
+      Nothing,
     PosTest
       "Test014: Trees"
       $(mkRelDir ".")
       $(mkRelFile "test014.jvr")
-      $(mkRelFile "out/test014.out"),
+      $(mkRelFile "out/test014.out")
+      Nothing,
     PosTest
       "Test015: Functions returning functions"
       $(mkRelDir ".")
       $(mkRelFile "test015.jvr")
-      $(mkRelFile "out/test015.out"),
+      $(mkRelFile "out/test015.out")
+      Nothing,
     PosTest
       "Test016: Arithmetic"
       $(mkRelDir ".")
       $(mkRelFile "test016.jvr")
-      $(mkRelFile "out/test016.out"),
+      $(mkRelFile "out/test016.out")
+      Nothing,
     PosTest
       "Test017: Closures as arguments"
       $(mkRelDir ".")
       $(mkRelFile "test017.jvr")
-      $(mkRelFile "out/test017.out"),
+      $(mkRelFile "out/test017.out")
+      Nothing,
     PosTest
       "Test018: Closure extension"
       $(mkRelDir ".")
       $(mkRelFile "test018.jvr")
-      $(mkRelFile "out/test018.out"),
+      $(mkRelFile "out/test018.out")
+      Nothing,
     PosTest
       "Test019: Recursion through higher-order functions"
       $(mkRelDir ".")
       $(mkRelFile "test019.jvr")
-      $(mkRelFile "out/test019.out"),
+      $(mkRelFile "out/test019.out")
+      Nothing,
     PosTest
       "Test020: Tail recursion through higher-order functions"
       $(mkRelDir ".")
       $(mkRelFile "test020.jvr")
-      $(mkRelFile "out/test020.out"),
+      $(mkRelFile "out/test020.out")
+      Nothing,
     PosTest
       "Test021: Higher-order functions and recursion"
       $(mkRelDir ".")
       $(mkRelFile "test021.jvr")
-      $(mkRelFile "out/test021.out"),
+      $(mkRelFile "out/test021.out")
+      Nothing,
     PosTest
       "Test023: McCarthy's 91 function"
       $(mkRelDir ".")
       $(mkRelFile "test023.jvr")
-      $(mkRelFile "out/test023.out"),
+      $(mkRelFile "out/test023.out")
+      Nothing,
     PosTest
       "Test024: Higher-order recursive functions"
       $(mkRelDir ".")
       $(mkRelFile "test024.jvr")
-      $(mkRelFile "out/test024.out"),
+      $(mkRelFile "out/test024.out")
+      Nothing,
     PosTest
       "Test026: Currying & uncurrying"
       $(mkRelDir ".")
       $(mkRelFile "test026.jvr")
-      $(mkRelFile "out/test026.out"),
+      $(mkRelFile "out/test026.out")
+      Nothing,
     PosTest
       "Test027: Fast exponentiation"
       $(mkRelDir ".")
       $(mkRelFile "test027.jvr")
-      $(mkRelFile "out/test027.out"),
+      $(mkRelFile "out/test027.out")
+      Nothing,
     PosTest
       "Test028: Lists"
       $(mkRelDir ".")
       $(mkRelFile "test028.jvr")
-      $(mkRelFile "out/test028.out"),
+      $(mkRelFile "out/test028.out")
+      Nothing,
     PosTest
       "Test030: Mutual recursion"
       $(mkRelDir ".")
       $(mkRelFile "test030.jvr")
-      $(mkRelFile "out/test030.out"),
+      $(mkRelFile "out/test030.out")
+      Nothing,
     PosTest
       "Test031: Temporary stack with branching"
       $(mkRelDir ".")
       $(mkRelFile "test031.jvr")
-      $(mkRelFile "out/test031.out"),
+      $(mkRelFile "out/test031.out")
+      Nothing,
     PosTest
       "Test033: Ackermann function"
       $(mkRelDir ".")
       $(mkRelFile "test033.jvr")
-      $(mkRelFile "out/test033.out"),
+      $(mkRelFile "out/test033.out")
+      Nothing,
     PosTest
       "Test034: Higher-order function composition"
       $(mkRelDir ".")
       $(mkRelFile "test034.jvr")
-      $(mkRelFile "out/test034.out"),
+      $(mkRelFile "out/test034.out")
+      Nothing,
     PosTest
       "Test036: Streams without memoization"
       $(mkRelDir ".")
       $(mkRelFile "test036.jvr")
-      $(mkRelFile "out/test036.out"),
+      $(mkRelFile "out/test036.out")
+      Nothing,
     PosTest
       "Test038: Apply & argsnum"
       $(mkRelDir ".")
       $(mkRelFile "test038.jvr")
-      $(mkRelFile "out/test038.out"),
+      $(mkRelFile "out/test038.out")
+      Nothing,
     PosTest
       "Test039: Calls in a branch"
       $(mkRelDir ".")
       $(mkRelFile "test039.jvr")
       $(mkRelFile "out/test039.out")
+      Nothing,
+    PosTest
+      "Test040: Input"
+      $(mkRelDir ".")
+      $(mkRelFile "test040.jvr")
+      $(mkRelFile "out/test040.out")
+      (Just $(mkRelFile "in/test040.json"))
   ]

test/Casm/Run/Base.hs

@@ -4,6 +4,7 @@ import Base
 import Data.Aeson
 import Juvix.Compiler.Casm.Data.Result qualified as Casm
 import Juvix.Compiler.Casm.Error
+import Juvix.Compiler.Casm.Extra.InputInfo
 import Juvix.Compiler.Casm.Interpreter
 import Juvix.Compiler.Casm.Translation.FromSource
 import Juvix.Compiler.Casm.Validate
@@ -12,13 +13,13 @@ import Juvix.Data.PPOutput
 import Juvix.Parser.Error
 import Runtime.Base qualified as R
 
-casmRunVM' :: Path Abs Dir -> Path Abs File -> IO Text
-casmRunVM' dirPath outputFile = do
-  out0 <- R.readProcessCwd (toFilePath dirPath) "run_cairo_vm.sh" [toFilePath outputFile] ""
-  return $ fromString $ unlines $ drop 1 $ lines (fromText out0)
+casmRunVM' :: Path Abs Dir -> Path Abs File -> Maybe (Path Abs File) -> IO Text
+casmRunVM' dirPath outputFile inputFile = do
+  let args = maybe [] (\f -> ["--program_input", toFilePath f]) inputFile
+  R.readProcessCwd (toFilePath dirPath) "run_cairo_vm.sh" (toFilePath outputFile : args) ""
 
-casmRunVM :: LabelInfo -> Code -> Path Abs File -> (String -> IO ()) -> Assertion
-casmRunVM labi instrs expectedFile step = do
+casmRunVM :: LabelInfo -> Code -> Maybe (Path Abs File) -> Path Abs File -> (String -> IO ()) -> Assertion
+casmRunVM labi instrs inputFile expectedFile step = do
   step "Check run_cairo_vm.sh is on path"
   assertCmdExists $(mkRelFile "run_cairo_vm.sh")
   withTempDir'
@@ -28,14 +29,14 @@ casmRunVM labi instrs expectedFile step = do
             outputFile = dirPath <//> $(mkRelFile "out.json")
         encodeFile (toFilePath outputFile) res
         step "Run Cairo VM"
-        actualOutput <- casmRunVM' dirPath outputFile
+        actualOutput <- casmRunVM' dirPath outputFile inputFile
         step "Compare expected and actual program output"
         expected <- readFile expectedFile
         assertEqDiffText ("Check: RUN output = " <> toFilePath expectedFile) actualOutput expected
     )
 
-casmRunAssertion' :: Bool -> LabelInfo -> Code -> Path Abs File -> (String -> IO ()) -> Assertion
-casmRunAssertion' bRunVM labi instrs expectedFile step =
+casmRunAssertion' :: Bool -> LabelInfo -> Code -> Maybe (Path Abs File) -> Path Abs File -> (String -> IO ()) -> Assertion
+casmRunAssertion' bRunVM labi instrs inputFile expectedFile step =
   case validate labi instrs of
     Left err -> do
       assertFailure (show (pretty err))
@@ -45,7 +46,7 @@ casmRunAssertion' bRunVM labi instrs expectedFile step =
             let outputFile = dirPath <//> $(mkRelFile "out.out")
             step "Interpret"
             hout <- openFile (toFilePath outputFile) WriteMode
-            r' <- doRun hout labi instrs
+            r' <- doRun hout labi instrs inputFile
             case r' of
               Left err -> do
                 hClose hout
@@ -59,15 +60,15 @@ casmRunAssertion' bRunVM labi instrs expectedFile step =
                 assertEqDiffText ("Check: RUN output = " <> toFilePath expectedFile) actualOutput expected
         )
       when bRunVM $
-        casmRunVM labi instrs expectedFile step
+        casmRunVM labi instrs inputFile expectedFile step
 
-casmRunAssertion :: Bool -> Path Abs File -> Path Abs File -> (String -> IO ()) -> Assertion
-casmRunAssertion bRunVM mainFile expectedFile step = do
+casmRunAssertion :: Bool -> Path Abs File -> Maybe (Path Abs File) -> Path Abs File -> (String -> IO ()) -> Assertion
+casmRunAssertion bRunVM mainFile inputFile expectedFile step = do
   step "Parse"
   r <- parseFile mainFile
   case r of
     Left err -> assertFailure (show (pretty err))
-    Right (labi, instrs) -> casmRunAssertion' bRunVM labi instrs expectedFile step
+    Right (labi, instrs) -> casmRunAssertion' bRunVM labi instrs inputFile expectedFile step
 
 casmRunErrorAssertion :: Path Abs File -> (String -> IO ()) -> Assertion
 casmRunErrorAssertion mainFile step = do
@@ -81,7 +82,7 @@ casmRunErrorAssertion mainFile step = do
         Left {} -> assertBool "" True
         Right () -> do
           step "Interpret"
-          r' <- doRun stderr labi instrs
+          r' <- doRun stderr labi instrs Nothing
           case r' of
             Left _ -> assertBool "" True
             Right _ -> assertFailure "no error"
@@ -95,5 +96,8 @@ doRun ::
   Handle ->
   LabelInfo ->
   Code ->
+  Maybe (Path Abs File) ->
   IO (Either CasmError FField)
-doRun hout labi instrs = catchRunErrorIO (hRunCode hout labi instrs)
+doRun hout labi instrs inputFile = do
+  inputInfo <- readInputInfo inputFile
+  catchRunErrorIO (hRunCode hout inputInfo labi instrs)

test/Casm/Run/Positive.hs

@@ -8,7 +8,8 @@ data PosTest = PosTest
     _runVM :: Bool,
     _relDir :: Path Rel Dir,
     _file :: Path Rel File,
-    _expectedFile :: Path Rel File
+    _expectedFile :: Path Rel File,
+    _inputFile :: Maybe (Path Rel File)
   }
 
 root :: Path Abs Dir
@@ -19,10 +20,11 @@ testDescr PosTest {..} =
   let tRoot = root <//> _relDir
       file' = tRoot <//> _file
       expected' = tRoot <//> _expectedFile
+      input' = fmap (tRoot <//>) _inputFile
    in TestDescr
         { _testName = _name,
           _testRoot = tRoot,
-          _testAssertion = Steps $ casmRunAssertion _runVM file' expected'
+          _testAssertion = Steps $ casmRunAssertion _runVM file' input' expected'
         }
 
 filterTests :: [String] -> [PosTest] -> [PosTest]
@@ -41,83 +43,104 @@ tests =
       True
       $(mkRelDir ".")
       $(mkRelFile "test001.casm")
-      $(mkRelFile "out/test001.out"),
+      $(mkRelFile "out/test001.out")
+      Nothing,
     PosTest
       "Test002: Factorial"
       True
       $(mkRelDir ".")
       $(mkRelFile "test002.casm")
-      $(mkRelFile "out/test002.out"),
+      $(mkRelFile "out/test002.out")
+      Nothing,
     PosTest
       "Test003: Direct call"
       True
       $(mkRelDir ".")
       $(mkRelFile "test003.casm")
-      $(mkRelFile "out/test003.out"),
+      $(mkRelFile "out/test003.out")
+      Nothing,
     PosTest
       "Test004: Indirect call"
       True
       $(mkRelDir ".")
       $(mkRelFile "test004.casm")
-      $(mkRelFile "out/test004.out"),
+      $(mkRelFile "out/test004.out")
+      Nothing,
     PosTest
       "Test005: Exp function"
       True
       $(mkRelDir ".")
       $(mkRelFile "test005.casm")
-      $(mkRelFile "out/test005.out"),
+      $(mkRelFile "out/test005.out")
+      Nothing,
     PosTest
       "Test006: Branch"
       True
       $(mkRelDir ".")
       $(mkRelFile "test006.casm")
-      $(mkRelFile "out/test006.out"),
+      $(mkRelFile "out/test006.out")
+      Nothing,
     PosTest
       "Test007: Closure extension"
       True
       $(mkRelDir ".")
       $(mkRelFile "test007.casm")
-      $(mkRelFile "out/test007.out"),
+      $(mkRelFile "out/test007.out")
+      Nothing,
     PosTest
       "Test008: Integer arithmetic"
       False -- integer division not yet supported
       $(mkRelDir ".")
       $(mkRelFile "test008.casm")
-      $(mkRelFile "out/test008.out"),
+      $(mkRelFile "out/test008.out")
+      Nothing,
     PosTest
       "Test009: Recursion"
       True
       $(mkRelDir ".")
       $(mkRelFile "test009.casm")
-      $(mkRelFile "out/test009.out"),
+      $(mkRelFile "out/test009.out")
+      Nothing,
     PosTest
       "Test010: Functions returning functions"
       True
       $(mkRelDir ".")
       $(mkRelFile "test010.casm")
-      $(mkRelFile "out/test010.out"),
+      $(mkRelFile "out/test010.out")
+      Nothing,
     PosTest
       "Test011: Lists"
       True
       $(mkRelDir ".")
       $(mkRelFile "test011.casm")
-      $(mkRelFile "out/test011.out"),
+      $(mkRelFile "out/test011.out")
+      Nothing,
     PosTest
       "Test012: Recursion through higher-order functions"
       True
       $(mkRelDir ".")
       $(mkRelFile "test012.casm")
-      $(mkRelFile "out/test012.out"),
+      $(mkRelFile "out/test012.out")
+      Nothing,
     PosTest
       "Test013: Currying and uncurrying"
       True
       $(mkRelDir ".")
       $(mkRelFile "test013.casm")
-      $(mkRelFile "out/test013.out"),
+      $(mkRelFile "out/test013.out")
+      Nothing,
     PosTest
       "Test014: Field arithmetic"
       True
       $(mkRelDir ".")
       $(mkRelFile "test014.casm")
       $(mkRelFile "out/test014.out")
+      Nothing,
+    PosTest
+      "Test015: Input"
+      True
+      $(mkRelDir ".")
+      $(mkRelFile "test015.casm")
+      $(mkRelFile "out/test015.out")
+      (Just $(mkRelFile "in/test015.json"))
   ]

tests/Casm/Reg/positive/in/test040.json

@@ -0,0 +1,4 @@
+{
+  "x": 12,
+  "y": 2
+}

tests/Casm/Reg/positive/out/test040.out

@@ -0,0 +1 @@
+84

tests/Casm/Reg/positive/test040.jvr

@@ -0,0 +1,23 @@
+-- input
+
+function sum(field) : field {
+  tmp[0] = eq arg[0] 0;
+  br tmp[0] {
+    true: {
+      ret 0;
+    };
+    false: {
+      tmp[1] = fsub arg[0] 1;
+      tmp[2] = call sum (tmp[1]);
+      tmp[3] = fadd tmp[2] arg[0];
+      ret tmp[3];
+    };
+  };
+}
+
+function main(x : field, y : field) : field {
+  tmp[0] = fdiv arg[0] arg[1];
+  tmp[1] = call sum (arg[0]);
+  tmp[2] = fadd tmp[0] tmp[1];
+  ret tmp[2];
+}

tests/Casm/positive/in/test015.json

@@ -0,0 +1,4 @@
+{
+  "X": 7,
+  "Y": 983
+}

tests/Casm/positive/out/test015.out

@@ -0,0 +1 @@
+990

tests/Casm/positive/test015.casm

@@ -0,0 +1,5 @@
+-- input hints
+
+%{ Input(X) %}
+%{ Input(Y) %}
+[ap] = [ap - 1] + [ap - 2]; ap++