1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
{-# OPTIONS_GHC -Wno-orphans #-}
module Parser (
parseTestFiles,
) where
import Control.Monad
import Control.Monad.State
import Data.IORef
import Data.Map qualified as M
import Data.Maybe
import Data.Proxy
import Data.Set qualified as S
import Data.Text qualified as T
import Data.Text.Lazy qualified as TL
import Data.Text.Lazy.IO qualified as TL
import Data.Void
import Text.Megaparsec hiding (State)
import Text.Megaparsec.Char
import Text.Megaparsec.Char.Lexer qualified as L
import System.Directory
import System.Exit
import System.FilePath
import System.IO.Error
import Network
import Parser.Core
import Parser.Expr
import Parser.Statement
import Test
import Test.Builtins
parseTestDefinition :: TestParser Toplevel
parseTestDefinition = label "test definition" $ toplevel ToplevelTest $ do
localState $ do
modify $ \s -> s
{ testContext = SomeExpr $ varExpr SourceLineBuiltin rootNetworkVar
}
block (\name steps -> return $ Test name $ mconcat steps) header testStep
where
header = do
wsymbol "test"
lexeme $ TL.toStrict <$> takeWhileP (Just "test name") (/=':')
parseDefinition :: TestParser ( VarName, SomeExpr )
parseDefinition = label "symbol definition" $ do
def <- localState $ L.indentBlock scn $ do
wsymbol "def"
name <- varName
argsDecl <- functionArguments (\off _ -> return . ( off, )) varName mzero (\_ -> return . VarName)
atypes <- forM argsDecl $ \( off, vname :: VarName ) -> do
tvar <- newTypeVar
modify $ \s -> s { testVars = ( vname, ExprTypeVar tvar ) : testVars s }
return ( off, vname, tvar )
choice
[ do
osymbol ":"
let finish steps = do
atypes' <- getInferredTypes atypes
( name, ) . SomeExpr . ArgsReq atypes' . FunctionAbstraction <$> replaceDynArgs (mconcat steps)
return $ L.IndentSome Nothing finish testStep
, do
osymbol "="
SomeExpr (expr :: Expr e) <- someExpr
atypes' <- getInferredTypes atypes
L.IndentNone . ( name, ) . SomeExpr . ArgsReq atypes' . FunctionAbstraction <$> replaceDynArgs expr
]
modify $ \s -> s { testVars = fmap someExprType def : testVars s }
return def
where
getInferredTypes atypes = forM atypes $ \( off, vname, tvar@(TypeVar tvarname) ) -> do
let err msg = do
registerParseError . FancyError off . S.singleton . ErrorFail $ T.unpack msg
return ( vname, SomeArgumentType (OptionalArgument @DynamicType) )
gets (M.lookup tvar . testTypeUnif) >>= \case
Just (ExprTypePrim (_ :: Proxy a)) -> return ( vname, SomeArgumentType (RequiredArgument @a) )
Just (ExprTypeVar (TypeVar tvar')) -> err $ "ambiguous type for ‘" <> textVarName vname <> " : " <> tvar' <> "’"
Just (ExprTypeFunction {}) -> err $ "unsupported function type of ‘" <> textVarName vname <> "’"
Nothing -> err $ "ambiguous type for ‘" <> textVarName vname <> " : " <> tvarname <> "’"
replaceDynArgs :: forall a. Expr a -> TestParser (Expr a)
replaceDynArgs expr = do
unif <- gets testTypeUnif
return $ mapExpr (go unif) expr
where
go :: forall b. M.Map TypeVar SomeExprType -> Expr b -> Expr b
go unif = \case
ArgsApp args body -> ArgsApp (fmap replaceArgs args) body
where
replaceArgs (SomeExpr (DynVariable tvar sline vname))
| Just (ExprTypePrim (Proxy :: Proxy v)) <- M.lookup tvar unif
= SomeExpr (Variable sline vname :: Expr v)
replaceArgs (SomeExpr e) = SomeExpr (go unif e)
e -> e
parseExport :: TestParser [ Toplevel ]
parseExport = label "export declaration" $ toplevel id $ do
wsymbol "export"
choice
[ do
def@( name, _ ) <- parseDefinition
return [ ToplevelDefinition def, ToplevelExport name ]
, do
names <- listOf varName
eol >> scn
return $ map ToplevelExport names
]
parseImport :: TestParser [ Toplevel ]
parseImport = label "import declaration" $ toplevel (\() -> []) $ do
wsymbol "import"
name <- parseModuleName
importedModule <- getOrParseModule name
let importedDefs = filter ((`elem` moduleExports importedModule) . fst) (moduleDefinitions importedModule)
modify $ \s -> s { testVars = map (fmap someExprType) importedDefs ++ testVars s }
eol >> scn
parseTestModule :: FilePath -> TestParser Module
parseTestModule absPath = do
moduleName <- choice
[ label "module declaration" $ do
wsymbol "module"
off <- stateOffset <$> getParserState
name@(ModuleName tname) <- parseModuleName
when (or (zipWith (/=) (reverse tname) (reverse $ map T.pack $ splitDirectories $ dropExtension $ absPath))) $ do
registerParseError $ FancyError off $ S.singleton $ ErrorFail $ T.unpack $
"module name does not match file path"
eol >> scn
return name
, do
return $ ModuleName [ T.pack $ takeBaseName absPath ]
]
modify $ \s -> s { testCurrentModuleName = moduleName }
toplevels <- fmap concat $ many $ choice
[ (: []) <$> parseTestDefinition
, (: []) <$> toplevel ToplevelDefinition parseDefinition
, parseExport
, parseImport
]
let moduleTests = catMaybes $ map (\case ToplevelTest x -> Just x; _ -> Nothing) toplevels
moduleDefinitions = catMaybes $ map (\case ToplevelDefinition x -> Just x; _ -> Nothing) toplevels
moduleExports = catMaybes $ map (\case ToplevelExport x -> Just x; _ -> Nothing) toplevels
eof
return Module {..}
parseTestFiles :: [ FilePath ] -> IO [ Module ]
parseTestFiles paths = do
parsedModules <- newIORef []
reverse <$> foldM (go parsedModules) [] paths
where
go parsedModules res path = do
let moduleName = error "current module name should be set at the beginning of parseTestModule"
parseTestFile parsedModules moduleName path >>= \case
Left err -> do
putStr (showErrorComponent err)
exitFailure
Right cur -> do
return $ cur : res
parseTestFile :: IORef [ ( FilePath, Module ) ] -> ModuleName -> FilePath -> IO (Either CustomTestError Module)
parseTestFile parsedModules moduleName path = do
absPath <- makeAbsolute path
(lookup absPath <$> readIORef parsedModules) >>= \case
Just found -> return $ Right found
Nothing -> do
let initState = TestParserState
{ testVars = concat
[ map (fmap someVarValueType) builtins
]
, testContext = SomeExpr (Undefined "void" :: Expr Void)
, testNextTypeVar = 0
, testTypeUnif = M.empty
, testCurrentModuleName = moduleName
, testParseModule = \(ModuleName current) mname@(ModuleName imported) -> do
let projectRoot = iterate takeDirectory absPath !! length current
parseTestFile parsedModules mname $ projectRoot </> foldr (</>) "" (map T.unpack imported) <.> takeExtension absPath
}
mbContent <- (Just <$> TL.readFile path) `catchIOError` \e ->
if isDoesNotExistError e then return Nothing else ioError e
case mbContent of
Just content -> do
runTestParser path content initState (parseTestModule absPath) >>= \case
Left bundle -> do
return $ Left $ ImportModuleError bundle
Right testModule -> do
modifyIORef parsedModules (( absPath, testModule ) : )
return $ Right testModule
Nothing -> return $ Left $ ModuleNotFound moduleName
|