mirror of
https://github.com/carp-lang/Carp.git
synced 2024-09-11 05:25:28 +03:00
All tests run, but can still confuse the type checker, see "expression_problem.carp"
This commit is contained in:
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@ -51,5 +51,5 @@
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(< (- y x) 0.00001)))
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(defn /= [x y]
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(not (= x y)))
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(not (Double.= x y)))
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)
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@ -12,7 +12,7 @@
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(register = (Fn [Float Float] Bool))
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(defn /= [x y]
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(not (= x y)))
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(not (Float.= x y)))
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(register < (Fn [Float Float] Bool))
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(register > (Fn [Float Float] Bool))
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@ -18,7 +18,7 @@
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(register copy (λ [&Long] Long)) ;; TODO: Should not be needed when refs to value types are auto-converted to non-refs.
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(defn /= [x y]
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(not (= x y)))
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(not (Long.= x y)))
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(register safe-add (λ [Long Long (Ref Long)] Bool))
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(register safe-sub (λ [Long Long (Ref Long)] Bool))
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@ -11,6 +11,8 @@
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* [0.3] Confusion with interfaces
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* When defining /= in terms of = in modules, the type becomes generic. Should it default to the = inside the module instead?
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* When one or more of the instances of a interface is generic, the final type becomes generic too
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* matching = filter (\(t, s) -> matchingSignature actualType (t, s) && not (typeIsGeneric t)) tysToPathsDict
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* [0.3] Error message with refs is wrong, see Constraints.hs:131
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## Big Language Features
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* [0.3] Allow evaluation of dynamic functions in the REPL and give access to the Commands from dynamic code
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@ -9,8 +9,14 @@
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;; Young is created later
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(deftype Young [age Int])
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;; (defmodule Confuse
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;; (defn = [a b]
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;; true))
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(defmodule Young
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(defn = [y1 y2]
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(Int.= (age y1) (age y2)))
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(defn /= [y1 y2]
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(Int.= (age y1) (age y2))))
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;; Now I want to use 'Young.=' in with 'Ur.compare'
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@ -19,3 +25,6 @@
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(defn main []
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(println &(str (f))))
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(build)
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(run)
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@ -2,13 +2,23 @@
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(use Int)
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(use Float)
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(use Double)
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;; (use Array)
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(use Array)
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;; (use System)
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;; (use String)
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;; (use Char)
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;; (use Bool)
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(defn main []
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(do
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(println &(str 3.0f))
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(println &(str 123))))
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;; (defn main []
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;; (do
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;; (println &(str 3.0f))
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;; (println &(str 123))))
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(project-set! printAST "true")
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(deftype Blah [])
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(defmodule Ur
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(defn f [x]
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(str x)))
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(defn main [] (println (ref (str (ref (Ur.f &[1 2 3]))))))
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@ -15,9 +15,9 @@ import AssignTypes
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import ManageMemory
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-- | This function performs two things:
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-- 1. Finds out which polymorphic functions that needs to be added to the environment for the calls in the function to work.
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-- 2. Changes the name of symbols at call sites so they use the polymorphic name
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-- Both of these results are returned in a tuple: (<new xobj>, <dependencies>)
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-- | 1. Finds out which polymorphic functions that needs to be added to the environment for the calls in the function to work.
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-- | 2. Changes the name of symbols at call sites so they use the polymorphic name
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-- | Both of these results are returned in a tuple: (<new xobj>, <dependencies>)
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concretizeXObj :: Bool -> TypeEnv -> Env -> [SymPath] -> XObj -> Either TypeError (XObj, [XObj])
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concretizeXObj allowAmbiguity typeEnv rootEnv visitedDefinitions root =
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case runState (visit rootEnv root) [] of
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@ -27,6 +27,7 @@ concretizeXObj allowAmbiguity typeEnv rootEnv visitedDefinitions root =
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visit :: Env -> XObj -> State [XObj] (Either TypeError XObj)
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visit env xobj@(XObj (Sym _) _ _) = visitSymbol env xobj
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visit env xobj@(XObj (MultiSym _ _) _ _) = visitMultiSym env xobj
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visit env xobj@(XObj (InterfaceSym _) _ _) = visitInterfaceSym env xobj
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visit env (XObj (Lst lst) i t) = do visited <- visitList env lst
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return $ do okVisited <- visited
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Right (XObj (Lst okVisited) i t)
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@ -110,20 +111,16 @@ concretizeXObj allowAmbiguity typeEnv rootEnv visitedDefinitions root =
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visitSymbol _ _ = error "Not a symbol."
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visitMultiSym :: Env -> XObj -> State [XObj] (Either TypeError XObj)
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visitMultiSym env xobj@(XObj (MultiSym originalSymbolName paths_not_needed_anymore) i t) =
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visitMultiSym env xobj@(XObj (MultiSym originalSymbolName paths) i t) =
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let Just actualType = t
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paths = case lookupInEnv (SymPath [] originalSymbolName) (getTypeEnv typeEnv) of
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Just (_, Binder (XObj (Lst [XObj (Interface interfaceSignature interfacePaths) _ _, _]) _ _)) ->
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interfacePaths
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Nothing ->
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paths_not_needed_anymore -- TODO: Remove?!
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tys = map (typeFromPath env) paths
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tysToPathsDict = zip tys paths
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in case filter (matchingSignature actualType) tysToPathsDict of
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[] ->
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if allowAmbiguity
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then return (Right xobj)
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else return (Left (NoMatchingSignature xobj originalSymbolName actualType tysToPathsDict))
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--if allowAmbiguity
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--then return (Right xobj)
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--else
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return (Left (NoMatchingSignature xobj originalSymbolName actualType tysToPathsDict))
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[(theType, singlePath)] -> let Just t' = t
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fake1 = XObj (Sym (SymPath [] "theType")) Nothing Nothing
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fake2 = XObj (Sym (SymPath [] "xobjType")) Nothing Nothing
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@ -144,11 +141,50 @@ concretizeXObj allowAmbiguity typeEnv rootEnv visitedDefinitions root =
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severalPaths -> if allowAmbiguity
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then return (Right xobj)
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else return (Left (CantDisambiguate xobj originalSymbolName actualType severalPaths))
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where matchingSignature :: Ty -> (Ty, SymPath) -> Bool
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matchingSignature tA (tB, _) = areUnifiable tA tB
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visitMultiSym _ _ = error "Not a multi symbol."
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visitInterfaceSym :: Env -> XObj -> State [XObj] (Either TypeError XObj)
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visitInterfaceSym env xobj@(XObj (InterfaceSym name) i t) =
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case lookupInEnv (SymPath [] name) (getTypeEnv typeEnv) of
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Just (_, Binder (XObj (Lst [XObj (Interface interfaceSignature interfacePaths) _ _, _]) _ _)) ->
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let Just actualType = t
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tys = map (typeFromPath env) interfacePaths
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tysToPathsDict = zip tys interfacePaths
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in case filter (matchingSignature actualType) tysToPathsDict of
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[] -> return $ --(trace ("No matching signatures for interface lookup of " ++ name ++ " of type " ++ show actualType ++ " " ++ prettyInfoFromXObj xobj ++ ", options are:\n" ++ joinWith "\n" (map show tysToPathsDict)))
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(Right xobj)
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[(theType, singlePath)] -> let Just t' = t
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fake1 = XObj (Sym (SymPath [] "theType")) Nothing Nothing
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fake2 = XObj (Sym (SymPath [] "xobjType")) Nothing Nothing
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in case solve [Constraint theType t' fake1 fake2 OrdMultiSym] of
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Right mappings ->
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let replaced = replaceTyVars mappings t'
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normalSymbol = XObj (Sym singlePath) i (Just replaced)
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in visitSymbol env $ --(trace ("Disambiguated interface symbol " ++ pretty xobj ++ prettyInfoFromXObj xobj ++ " to " ++ show singlePath ++ " : " ++ show replaced ++ ", options were:\n" ++ joinWith "\n" (map show tysToPathsDict)))
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normalSymbol
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Left failure@(UnificationFailure _ _) ->
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return $ Left (UnificationFailed
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(unificationFailure failure)
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(unificationMappings failure)
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[])
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Left (Holes holes) ->
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return $ Left (HolesFound holes)
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severalPaths ->
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return $ --(trace ("Several matching signatures for interface lookup of '" ++ name ++ "' of type " ++ show actualType ++ " " ++ prettyInfoFromXObj xobj ++ ", options are:\n" ++ joinWith "\n" (map show tysToPathsDict) ++ "\n Filtered paths are:\n" ++ (joinWith "\n" (map show severalPaths))))
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--(Left (CantDisambiguateInterfaceLookup xobj name interfaceType severalPaths)) -- TODO unnecessary error?
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(Right xobj)
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Nothing ->
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error ("No interface named '" ++ name ++ "' found.")
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matchingSignature :: Ty -> (Ty, SymPath) -> Bool
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matchingSignature tA (tB, _) =
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areUnifiable tA tB
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-- matchingNonGenericSignature :: Ty -> (Ty, SymPath) -> Bool
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-- matchingNonGenericSignature actualType (t, s) =
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-- matchingSignature actualType (t, s) && not (typeIsGeneric t)
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-- | Get the type of a symbol at a given path.
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typeFromPath :: Env -> SymPath -> Ty
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typeFromPath env p =
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@ -176,7 +212,7 @@ concretizeDefinition allowAmbiguity typeEnv globalEnv visitedDefinitions definit
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in case assignTypes mappings withNewPath of
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Right typed ->
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if newPath `elem` visitedDefinitions
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then return (withNewPath, [])
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then return (trace ("Already visited " ++ show newPath) (withNewPath, []))
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else do (concrete, deps) <- concretizeXObj allowAmbiguity typeEnv globalEnv (newPath : visitedDefinitions) typed
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managed <- manageMemory typeEnv globalEnv concrete
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return (managed, deps)
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@ -15,6 +15,7 @@ import Obj
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import Types
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data ConstraintOrder = OrdNo
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| OrdFuncAppArg
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| OrdArrHead
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| OrdArg
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| OrdDefnBody
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@ -33,8 +34,8 @@ data ConstraintOrder = OrdNo
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| OrdFuncAppVarTy
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| OrdArrBetween
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| OrdMultiSym
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| OrdInterfaceSym
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| OrdFuncAppRet
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| OrdFuncAppArg
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deriving (Show, Ord, Eq)
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data Constraint = Constraint Ty Ty XObj XObj ConstraintOrder deriving Eq
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@ -49,7 +50,7 @@ data UnificationFailure = UnificationFailure { unificationFailure ::Constraint
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deriving (Eq, Show)
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instance Show Constraint where
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show (Constraint a b _ _ ord) = "{" ++ show a ++ " == " ++ show b ++ " (ord " ++ show ord ++ ")}"
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show (Constraint a b xa xb ord) = "{" ++ show a ++ " == " ++ show b ++ " (ord " ++ show ord ++ ")} " ++ show (fmap infoLine (info xa)) ++ ", " ++ show (fmap infoLine (info xb))
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-- Finds the symbol with the "lowest name" (first in alphabetical order)
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recursiveLookup :: TypeMappings -> String -> Maybe Ty
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@ -127,6 +128,7 @@ solveOneInternal mappings constraint =
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in solveOneInternal mappings (Constraint a b i1 i2 ord)
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-- Ref types
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-- TODO: This messes up the error message since the constraint is between non-reffed types so the refs don't show in the error message!!!
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Constraint (RefTy a) (RefTy b) _ _ _ ->
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let (Constraint _ _ i1 i2 ord) = constraint
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in solveOneInternal mappings (Constraint a b i1 i2 ord)
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@ -25,6 +25,7 @@ data ToCError = InvalidParameter XObj
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| CannotEmitModKeyword
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| BinderIsMissingType Binder
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| UnresolvedMultiSymbol XObj
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| UnresolvedInterfaceSymbol XObj
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| UnresolvedGenericType XObj
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instance Show ToCError where
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@ -39,6 +40,9 @@ instance Show ToCError where
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"Found ambiguous symbol '" ++ symName ++
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"' (alternatives are " ++ joinWithComma (map show symPaths) ++ ")" ++
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" at " ++ prettyInfoFromXObj xobj
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show (UnresolvedInterfaceSymbol xobj@(XObj (InterfaceSym symName) _ _)) =
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"Found unresolved use of interface '" ++ symName ++ "'" ++
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" at " ++ prettyInfoFromXObj xobj
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show (UnresolvedGenericType xobj@(XObj _ _ (Just t))) =
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"Found unresolved generic type '" ++ show t ++ "' at " ++ prettyInfoFromXObj xobj
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@ -77,6 +81,7 @@ toC root = emitterSrc (execState (visit 0 root) (EmitterState ""))
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e@(Instantiate _) -> error (show (DontVisitObj e))
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e@(Defalias _) -> error (show (DontVisitObj e))
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e@(MultiSym _ _) -> error (show (DontVisitObj e))
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e@(InterfaceSym _) -> error (show (DontVisitObj e))
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Address -> error (show (DontVisitObj Address))
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SetBang -> error (show (DontVisitObj SetBang))
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Macro -> error (show (DontVisitObj Macro))
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@ -488,6 +493,7 @@ checkForUnresolvedSymbols = visit
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(Lst _) -> visitList xobj
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(Arr _) -> visitArray xobj
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(MultiSym _ _) -> Left (UnresolvedMultiSymbol xobj)
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(InterfaceSym _) -> Left (UnresolvedInterfaceSymbol xobj)
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_ -> return ()
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visitList :: XObj -> Either ToCError ()
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@ -45,7 +45,7 @@ annotate typeEnv globalEnv xobj =
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annotateOne :: TypeEnv -> Env -> XObj -> Bool -> Either TypeError (XObj, [XObj])
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annotateOne typeEnv env xobj allowAmbiguity = do
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constraints <- genConstraints xobj
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mappings <- solveConstraintsAndConvertErrorIfNeeded constraints
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mappings <- solveConstraintsAndConvertErrorIfNeeded constraints --(trace ("CONSTRAINTS:\n" ++ joinWith "\n" (map show constraints)) constraints)
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typed <- assignTypes mappings xobj
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concretizeXObj allowAmbiguity typeEnv env [] typed
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@ -69,6 +69,7 @@ initialTypes typeEnv rootEnv root = evalState (visit rootEnv root) 0
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(Arr _) -> visitArray env xobj
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(Sym symPath) -> visitSymbol env xobj symPath
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(MultiSym _ paths) -> visitMultiSym env xobj paths
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(InterfaceSym _) -> visitInterfaceSym env xobj
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Defn -> return (Left (InvalidObj Defn xobj))
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Def -> return (Left (InvalidObj Def xobj))
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Let -> return (Left (InvalidObj Let xobj))
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@ -108,6 +109,11 @@ initialTypes typeEnv rootEnv root = evalState (visit rootEnv root) 0
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visitMultiSym :: Env -> XObj -> [SymPath] -> State Integer (Either TypeError XObj)
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visitMultiSym _ xobj@(XObj (MultiSym name _) _ _) _ =
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do freshTy <- genVarTy
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return (Right xobj { ty = Just freshTy })
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visitInterfaceSym :: Env -> XObj -> State Integer (Either TypeError XObj)
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visitInterfaceSym env xobj@(XObj (InterfaceSym name) _ _) =
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do freshTy <- case lookupInEnv (SymPath [] name) (getTypeEnv typeEnv) of
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Just (_, Binder (XObj (Lst [XObj (Interface interfaceSignature _) _ _, _]) _ _)) -> renameVarTys interfaceSignature
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Just (_, Binder x) -> error ("A non-interface named '" ++ name ++ "' was found in the type environment: " ++ show x)
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|
14
src/Obj.hs
14
src/Obj.hs
@ -12,7 +12,8 @@ import Debug.Trace
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-- | The canonical Lisp object.
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data Obj = Sym SymPath
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| MultiSym String [SymPath]
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| MultiSym String [SymPath] -- refering to multiple functions with the same name
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| InterfaceSym String -- refering to an interface. TODO: rename to InterfaceLookupSym?
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| Num Ty Double
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| Str String
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| Chr Char
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@ -144,6 +145,7 @@ pretty = visit 0
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Chr c -> '\\' : c : ""
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Sym path -> show path
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MultiSym originalName paths -> originalName ++ "{" ++ joinWithComma (map show paths) ++ "}"
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InterfaceSym name -> "(InterfaceSym " ++ name ++ ")"
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Bol b -> if b then "true" else "false"
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Defn -> "defn"
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Def -> "def"
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@ -502,21 +504,21 @@ setFullyQualifiedSymbols typeEnv env xobj@(XObj (Sym path) i t) =
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case lookupInEnv path env of
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Just (foundEnv, _) ->
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if envIsExternal foundEnv
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then emptyMultiSym name
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then createInterfaceSym name
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else doesNotBelongToAnInterface
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Nothing ->
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--trace ("Will turn " ++ show path ++ " into an empty multi sym (found no local symbol with same name)")
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emptyMultiSym name
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--trace ("Will turn '" ++ show path ++ "' " ++ prettyInfoFromXObj xobj ++ " into an interface symbol.")
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createInterfaceSym name
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Nothing ->
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doesNotBelongToAnInterface
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-- Qualified:
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_ ->
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doesNotBelongToAnInterface
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where
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emptyMultiSym name = XObj (MultiSym name []) i t -- TODO: Should be it's own kind of Sym maybe?
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createInterfaceSym name = XObj (InterfaceSym name) i t
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doesNotBelongToAnInterface =
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case multiLookupQualified path env of
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[] -> xobj
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[] -> xobj -- Nothing found, leave the symbol as is
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[(_, Binder foundOne)] ->
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XObj (Sym (getPath foundOne)) i t
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multiple ->
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|
@ -22,6 +22,7 @@ data TypeError = SymbolMissingType XObj Env
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| LeadingColon XObj
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| UnificationFailed Constraint TypeMappings [Constraint]
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| CantDisambiguate XObj String Ty [(Ty, SymPath)]
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| CantDisambiguateInterfaceLookup XObj String Ty [(Ty, SymPath)]
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| NoMatchingSignature XObj String Ty [(Ty, SymPath)]
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| HolesFound [(String, Ty)]
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| FailedToExpand XObj EvalError
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@ -62,17 +63,25 @@ instance Show TypeError where
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show (NoFormsInBody xobj) =
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"No expressions in body position at " ++ prettyInfoFromXObj xobj ++ "."
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show (UnificationFailed constraint@(Constraint a b aObj bObj _) mappings constraints) =
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"Can't unify \n\n" ++ --show aObj ++ " WITH " ++ show bObj ++ "\n\n" ++
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" " ++ pretty aObj ++ " : " ++ show (recursiveLookupTy mappings a) ++ "\n " ++ prettyInfoFromXObj aObj ++ "" ++
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"Can't unify " ++ show (recursiveLookupTy mappings a) ++ " with " ++ show (recursiveLookupTy mappings b) ++ "\n\n" ++
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--show aObj ++ " WITH " ++ show bObj ++ "\n\n" ++
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" " ++ pretty aObj ++ " : " ++ showTypeFromXObj aObj ++ "\n " ++ prettyInfoFromXObj aObj ++ "" ++
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"\n\nwith \n\n" ++
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" " ++ pretty bObj ++ " : " ++ show (recursiveLookupTy mappings b) ++ "\n " ++ prettyInfoFromXObj bObj ++ "\n\n"
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" " ++ pretty bObj ++ " : " ++ showTypeFromXObj bObj ++ "\n " ++ prettyInfoFromXObj bObj ++ "\n\n"
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-- ++
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-- "Constraint: " ++ show constraint ++ "\n\n" ++
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-- "All constraints:\n" ++ show constraints ++ "\n\n" ++
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-- "Mappings: \n" ++ show mappings ++ "\n\n"
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where showTypeFromXObj :: XObj -> String
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showTypeFromXObj xobj = case ty xobj of
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Just t -> show t
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Nothing -> "No type on " ++ show xobj
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show (CantDisambiguate xobj originalName theType options) =
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"Can't disambiguate symbol '" ++ originalName ++ "' of type " ++ show theType ++ " at " ++ prettyInfoFromXObj xobj ++
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"\nPossibilities:\n " ++ joinWith "\n " (map (\(t, p) -> show p ++ " : " ++ show t) options)
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show (CantDisambiguateInterfaceLookup xobj name theType options) =
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"Can't disambiguate interface lookup symbol '" ++ name ++ "' of type " ++ show theType ++ " at " ++ prettyInfoFromXObj xobj ++
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"\nPossibilities:\n " ++ joinWith "\n " (map (\(t, p) -> show p ++ " : " ++ show t) options)
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show (NoMatchingSignature xobj originalName theType options) =
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"Can't find matching lookup for symbol '" ++ originalName ++
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"' of type " ++ show theType ++ " at " ++ prettyInfoFromXObj xobj ++
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|
@ -6,7 +6,7 @@
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(use Statistics)
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|
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(defn all-eq [a b]
|
||||
(if (Double./= (Array.count a) (Array.count b))
|
||||
(if (Int./= (Array.count a) (Array.count b))
|
||||
false
|
||||
(let [res true]
|
||||
(do
|
||||
|
Loading…
Reference in New Issue
Block a user