f34cf92 · rowtype-yoga/purescript-native

git.iko.soy/rowtype-yoga/purescript-native

on golang help sign in

Remove runtime type checks #93

f34cf92Phil Freeman13 years ago

psc/Main.hs+1−5

compare with golang

unifiedsplit

@@ -83,10 +83,6 @@ tco :: Term Bool

83tco = value $ flag $ (optInfo [ "tco" ])

84 { optDoc = "Perform tail call optimizations" }

86−performRuntimeTypeChecks :: Term Bool

87−performRuntimeTypeChecks = value $ flag $ (optInfo [ "runtime-type-checks" ])

88− { optDoc = "Generate runtime type checks" }

89−

90noPrelude :: Term Bool

86noPrelude :: Term Bool

91noPrelude = value $ flag $ (optInfo [ "no-prelude" ])

87noPrelude = value $ flag $ (optInfo [ "no-prelude" ])

92 { optDoc = "Omit the Prelude" }

88 { optDoc = "Omit the Prelude" }

@@ -112,7 +108,7 @@ dceModules = value $ optAll [] $ (optInfo [ "m", "module" ])

112 { optDoc = "Enables dead code elimination, all code which is not a transitive dependency of a specified module will be removed. This argument can be used multiple times." }

108 { optDoc = "Enables dead code elimination, all code which is not a transitive dependency of a specified module will be removed. This argument can be used multiple times." }

113

109

114options :: Term P.Options

110options :: Term P.Options

115−options = P.Options <$> tco <*> performRuntimeTypeChecks <*> magicDo <*> runMain <*> noOpts <*> browserNamespace <*> dceModules

111+options = P.Options <$> tco <*> magicDo <*> runMain <*> noOpts <*> browserNamespace <*> dceModules

116

112

117stdInOrInputFiles :: FilePath -> Term (Maybe [FilePath])

113stdInOrInputFiles :: FilePath -> Term (Maybe [FilePath])

118stdInOrInputFiles prelude = combine <$> useStdIn <*> (not <$> noPrelude) <*> inputFiles

114stdInOrInputFiles prelude = combine <$> useStdIn <*> (not <$> noPrelude) <*> inputFiles

psci/Main.hs+1−1

@@ -195,7 +195,7 @@ completion = completeWord Nothing " \t\n\r" findCompletions

195-- | Compilation options.

196--

197options :: P.Options

198−options = P.Options True False True (Just "Main") True "PS" []

198+options = P.Options True True (Just "Main") True "PS" []

199

200-- |

201-- Makes a volatile module to execute the current expression.

src/Language/PureScript/CodeGen/JS.hs−34

@@ -135,7 +135,6 @@ valueToJs opts m e (IfThenElse cond th el) = JSConditional (valueToJs opts m e c

135valueToJs opts m e (Accessor prop val) = JSAccessor prop (valueToJs opts m e val)

136valueToJs opts m e (App val arg) = JSApp (valueToJs opts m e val) [valueToJs opts m e arg]

137valueToJs opts m e (Abs (Left arg) val) = JSFunction Nothing [identToJs arg] (JSBlock [JSReturn (valueToJs opts m (bindName m arg e) val)])

138−valueToJs opts m e (TypedValue _ (Abs (Left arg) val) ty) | optionsPerformRuntimeTypeChecks opts = let arg' = identToJs arg in JSFunction Nothing [arg'] (JSBlock $ runtimeTypeChecks arg' ty ++ [JSReturn (valueToJs opts m e val)])

139valueToJs _ m _ (Var ident) = varToJs m ident

138valueToJs _ m _ (Var ident) = varToJs m ident

140valueToJs opts m e (TypedValue _ val _) = valueToJs opts m e val

139valueToJs opts m e (TypedValue _ val _) = valueToJs opts m e val

141valueToJs _ _ _ (TypeClassDictionary _ _) = error "Type class dictionary was not replaced"

140valueToJs _ _ _ (TypeClassDictionary _ _) = error "Type class dictionary was not replaced"

@@ -173,39 +172,6 @@ bindNames m idents env = env { names = M.fromList [ ((m, ident), (noType, LocalV

173 where

172 where

174 noType = error "Temporary lambda variable type was read"

173 noType = error "Temporary lambda variable type was read"

175

174

176−

177−-- |

178−-- Generate code in the simplified Javascript intermediate representation for runtime type checks.

179−--

180−runtimeTypeChecks :: String -> Type -> [JS]

181−runtimeTypeChecks arg ty =

182− let

183− argTy = getFunctionArgumentType ty

184− in

185− maybe [] (argumentCheck (JSVar arg)) argTy

186− where

187− getFunctionArgumentType :: Type -> Maybe Type

188− getFunctionArgumentType (TypeApp (TypeApp t funArg) _) | t == tyFunction = Just funArg

189− getFunctionArgumentType (ForAll _ ty' _) = getFunctionArgumentType ty'

190− getFunctionArgumentType _ = Nothing

191− argumentCheck :: JS -> Type -> [JS]

192− argumentCheck val t | t == tyNumber = [typeCheck val "number"]

193− argumentCheck val t | t == tyString = [typeCheck val "string"]

194− argumentCheck val t | t == tyBoolean = [typeCheck val "boolean"]

195− argumentCheck val (TypeApp t _) | t == tyArray = [arrayCheck val]

196− argumentCheck val (Object row) =

197− let

198− (pairs, _) = rowToList row

199− in

200− typeCheck val "object" : concatMap (\(prop, ty') -> argumentCheck (JSAccessor prop val) ty') pairs

201− argumentCheck val (TypeApp (TypeApp t _) _) | t == tyFunction = [typeCheck val "function"]

202− argumentCheck val (ForAll _ ty' _) = argumentCheck val ty'

203− argumentCheck _ _ = []

204− typeCheck :: JS -> String -> JS

205− typeCheck js ty' = JSIfElse (JSBinary NotEqualTo (JSTypeOf js) (JSStringLiteral ty')) (JSBlock [JSThrow (JSStringLiteral $ ty' ++ " expected")]) Nothing

206− arrayCheck :: JS -> JS

207− arrayCheck js = JSIfElse (JSUnary Not (JSApp (JSAccessor "isArray" (JSVar "Array")) [js])) (JSBlock [JSThrow (JSStringLiteral "Array expected")]) Nothing

208−

209-- |

175-- |

210-- Generate code in the simplified Javascript intermediate representation for a reference to a

176-- Generate code in the simplified Javascript intermediate representation for a reference to a

211-- variable.

177-- variable.

src/Language/PureScript/Options.hs+1−5

@@ -23,10 +23,6 @@ data Options = Options {

23 -- Perform tail-call elimination

24 --

25 optionsTco :: Bool

26− -- |

27− -- Perform type checks at runtime

28− --

29− , optionsPerformRuntimeTypeChecks :: Bool

30 -- |

26 -- |

31 -- Inline calls to ret and bind for the Eff monad

27 -- Inline calls to ret and bind for the Eff monad

32 --

28 --

@@ -55,4 +51,4 @@ data Options = Options {

55-- Default compiler options

51-- Default compiler options

56--

52--

57defaultOptions :: Options

53defaultOptions :: Options

58−defaultOptions = Options False False False Nothing False "PS" []

54+defaultOptions = Options False False Nothing False "PS" []