Merged into commit not compiling on codegen 😤
This commit is contained in:
Rakarake
commit
0d23a59f0c
7 changed files with 364 additions and 65 deletions
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@ -38,6 +38,7 @@ executable language
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Renamer.Renamer
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Codegen.Codegen
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Codegen.LlvmIr
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TreeConverter
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hs-source-dirs: src
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@ -69,6 +70,8 @@ Test-suite language-testsuite
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Auxiliary
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TypeChecker.TypeChecker
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TypeChecker.TypeCheckerIr
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Monomorpher.Monomorpher
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Monomorpher.MonomorpherIr
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Renamer.Renamer
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Compiler
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@ -85,5 +88,7 @@ Test-suite language-testsuite
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, QuickCheck
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, process
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, bytestring
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, hspec
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default-language: GHC2021
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10
llvm.ll
Normal file
10
llvm.ll
Normal file
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@ -0,0 +1,10 @@
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@.str = private unnamed_addr constant [3 x i8] c"%i
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", align 1
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declare i32 @printf(ptr noalias nocapture, ...)
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; Ident "main": EAdd (TMono (Ident "Int")) (ELit (TMono (Ident "Int")) (LInt 3)) (ELit (TMono (Ident "Int")) (LInt 3))
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define i64 @main() {
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%1 = add i64 3, 3
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call i32 (ptr, ...) @printf(ptr noundef @.str, i64 noundef %1)
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ret i64 0
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}
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6
sample-programs/good1
Normal file
6
sample-programs/good1
Normal file
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@ -0,0 +1,6 @@
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main : _Int ;
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main = (id : _Int -> _Int) 5 ;
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id : 'a -> 'a ;
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id x = (x : 'a);
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@ -1,76 +1,223 @@
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-- | For now, converts polymorphic functions to concrete ones based on usage.
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-- Assumes lambdas are lifted.
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--
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-- This step of compilation is as follows:
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--
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-- Split all function bindings into monomorphic and polymorphic binds. The
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-- monomorphic bindings will be part of this compilation step.
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-- Apply the following monomorphization function on all monomorphic binds, with
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-- their type as an additional argument.
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--
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-- The function that transforms Binds operates on both monomorphic and
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-- polymorphic functions, creates a context in which all possible polymorphic types
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-- are mapped to concrete types, created using the additional argument.
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-- Expressions are then recursively processed. The type of these expressions
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-- are changed to using the mapped generic types. The expected type provided
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-- in the recursion is changed depending on the different nodes.
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--
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-- When an external bind is encountered (with EId), it is checked whether it
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-- exists in outputed binds or not. If it does, nothing further is evaluated.
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-- If not, the bind transformer function is called on it with the
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-- expected type in this context. The result of this computation (a monomorphic
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-- bind) is added to the resulting set of binds.
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{-# LANGUAGE LambdaCase #-}
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{-# LANGUAGE OverloadedStrings #-}
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module Monomorphizer.Monomorphizer (monomorphize) where
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module Monomorphizer.Monomorphizer (monomorphize, morphExp, morphBind) where
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import qualified TypeChecker.TypeCheckerIr as T
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import TypeChecker.TypeCheckerIr (Ident (Ident))
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import qualified Monomorphizer.MonomorphizerIr as M
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import Debug.Trace
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import Control.Monad.State (MonadState, gets, modify, StateT (runStateT))
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import qualified Data.Map as Map
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import qualified Data.Set as Set
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import Data.Maybe (fromJust)
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import Control.Monad.Reader (Reader, MonadReader (local, ask), asks, runReader)
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import Data.Coerce (coerce)
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import Monomorphizer.MonomorphizerIr qualified as M
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import TypeChecker.TypeCheckerIr qualified as T
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-- | State Monad wrapper for "Env".
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newtype EnvM a = EnvM (StateT Output (Reader Env) a)
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deriving (Functor, Applicative, Monad, MonadState Output, MonadReader Env)
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type Output = Map.Map M.Ident Outputted
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-- When a bind is being processed, it is Incomplete in the state, also
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-- called marked.
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data Outputted = Incomplete | Complete M.Bind
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-- Static environment
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data Env = Env {
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-- | All binds in the program.
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input :: Map.Map Ident T.Bind,
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-- | Maps polymorphic identifiers with concrete types.
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polys :: Map.Map Ident M.Type,
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-- | Local variables
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locals :: Set.Set Ident
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}
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runEnvM :: Output -> Env -> EnvM () -> Output
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runEnvM o env (EnvM stateM) = snd $ runReader (runStateT stateM o) env
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-- | Creates the environment based on the input binds.
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createEnv :: [T.Bind] -> Env
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createEnv binds = Env { input = Map.fromList kvPairs,
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polys = Map.empty,
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locals = Set.empty }
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where
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kvPairs :: [(Ident, T.Bind)]
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kvPairs = map (\b@(T.Bind (ident, _) _ _) -> (ident, b)) binds
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localExists :: Ident -> EnvM Bool
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localExists ident = asks (Set.member ident . locals)
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-- | Gets a polymorphic bind from an id.
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getInputBind :: Ident -> EnvM (Maybe T.Bind)
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getInputBind ident = asks (Map.lookup ident . input)
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-- | Add monomorphic function derived from a polymorphic one, to env.
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addOutputBind :: M.Bind -> EnvM ()
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addOutputBind b@(M.Bind (ident, _) _ _) = modify (Map.insert ident (Complete b))
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-- | Marks a global bind as being processed, meaning that when encountered again,
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-- it should not be recursively processed.
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markBind :: M.Ident -> EnvM ()
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markBind ident = modify (Map.insert ident Incomplete)
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-- | Check if bind has been touched or not.
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isBindMarked :: M.Ident -> EnvM Bool
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isBindMarked ident = gets (Map.member ident)
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-- | Finds main bind
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getMain :: EnvM T.Bind
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getMain = asks (\env -> fromJust $ Map.lookup (T.Ident "main") (input env))
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-- NOTE: could make this function more optimized
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-- | Makes a kv pair list of polymorphic to monomorphic mappings, throws runtime
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-- error when encountering different structures between the two arguments.
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mapTypes :: T.Type -> M.Type -> [(Ident, M.Type)]
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mapTypes (T.TLit _) (M.TLit _) = []
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mapTypes (T.TVar (T.MkTVar i1)) tm = [(i1, tm)]
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mapTypes (T.TFun pt1 pt2) (M.TFun mt1 mt2) = mapTypes pt1 mt1 ++
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mapTypes pt2 mt2
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mapTypes _ _ = error "structure of types not the same!"
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-- | Gets the mapped monomorphic type of a polymorphic type in the current context.
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getMonoFromPoly :: T.Type -> EnvM M.Type
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getMonoFromPoly t = do env <- ask
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return $ getMono (polys env) t
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where
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getMono :: Map.Map Ident M.Type -> T.Type -> M.Type
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getMono polys t = case t of
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(T.TLit ident) -> M.TLit (convertIdent ident)
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(T.TFun t1 t2) -> M.TFun (getMono polys t1) (getMono polys t2)
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(T.TVar (T.MkTVar ident)) -> case Map.lookup ident polys of
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Just concrete -> concrete
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Nothing -> error $
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"type not found! type: " ++ show ident ++ ", error in previous compilation steps"
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_ -> error "Not implemented"
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-- | If ident not already in env's output, morphed bind to output
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-- (and all referenced binds within this bind).
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-- Returns the annotated bind name.
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-- TODO: Redundancy? btype and t should always be the same.
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morphBind :: M.Type -> T.Bind -> EnvM Ident
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morphBind expectedType b@(T.Bind (Ident _, btype) args (exp, t)) =
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local (\env -> env { locals = Set.fromList (map fst args),
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polys = Map.fromList (mapTypes btype expectedType)
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}) $ do
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-- The "new name" is used to find out if it is already marked or not.
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let name' = newName expectedType b
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bindMarked <- isBindMarked (convertIdent name')
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-- Return with right name if already marked
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if bindMarked then return name' else do
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-- Mark so that this bind will not be processed in recursive or cyclic
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-- function calls
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markBind (coerce name')
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exp' <- morphExp expectedType exp
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addOutputBind $ M.Bind (convertIdent name', expectedType)
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[] (exp', expectedType)
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return name'
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-- Morphs function applications, such as EApp and EAdd
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morphApp :: M.Type -> T.ExpT -> T.ExpT -> EnvM M.Exp
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morphApp expectedType (e1, t1) (e2, t2)= do
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t1' <- getMonoFromPoly t1
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t2' <- getMonoFromPoly t2
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e2' <- morphExp t2' e2
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e1' <- morphExp (M.TFun t2' expectedType) e1
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return $ M.EApp (e1', t1') (e2', t2')
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-- TODO: Change in tree so that these are the same.
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-- Converts Lit
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convertLit :: T.Lit -> M.Lit
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convertLit (T.LInt v) = M.LInt v
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convertLit (T.LChar v) = M.LChar v
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-- Converts Ident
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convertIdent :: T.Ident -> M.Ident
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convertIdent (T.Ident str) = M.Ident str
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morphExp :: M.Type -> T.Exp -> EnvM M.Exp
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morphExp expectedType exp = case exp of
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T.ELit lit -> return $ M.ELit (convertLit lit)
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T.EApp e1 e2 -> do
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morphApp expectedType e1 e2
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T.EAdd e1 e2 -> do
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morphApp expectedType e1 e2
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T.EAbs _ _ -> do
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error "EAbs found in Monomorpher, not implemented"
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T.EId ident@(Ident str) -> do
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isLocal <- localExists ident
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if isLocal then do
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return $ M.EId (convertIdent ident)
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else do
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bind <- getInputBind ident
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case bind of
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Nothing ->
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error $ "bind of name: " ++ str ++ " not found, bug in previous compilation steps"
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Just bind' -> do
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-- New bind to process
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newBindName <- morphBind expectedType bind'
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return $ M.EId (convertIdent newBindName)
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T.ELet (T.Bind {}) _ -> error "lets not possible yet"
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_ -> error "Not implemented yet"
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-- Creates a new identifier for a function with an assigned type
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newName :: M.Type -> T.Bind -> Ident
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newName t (T.Bind (Ident bindName, _) _ _) = Ident (bindName ++ "$" ++ newName' t)
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where
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newName' :: M.Type -> String
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newName' (M.TLit (M.Ident str)) = str
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newName' (M.TFun t1 t2) = newName' t1 ++ "_" ++ newName' t2
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-- Monomorphization step
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monomorphize :: T.Program -> M.Program
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monomorphize (T.Program ds) = M.Program $ monoDefs ds
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monomorphize (T.Program defs) = M.Program $ (getDefsFromBinds . getBindsFromOutput)
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(runEnvM Map.empty (createEnv $ getBindsFromDefs defs) monomorphize')
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where
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monomorphize' :: EnvM ()
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monomorphize' = do
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main <- getMain
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morphBind (M.TLit $ M.Ident "Int") main
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return ()
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monoDefs :: [T.Def] -> [M.Def]
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monoDefs = map monoDef
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getBindsFromOutput :: Output -> [M.Bind]
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getBindsFromOutput outputMap = (map snd . Map.toList) $ fmap
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(\case
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Incomplete -> error "Internal bug in monomorphizer"
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Complete b -> b )
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outputMap
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monoDef :: T.Def -> M.Def
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monoDef (T.DBind bind) = M.DBind $ monoBind bind
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monoDef (T.DData d) = M.DData $ monoData d
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getBindsFromDefs :: [T.Def] -> [T.Bind]
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getBindsFromDefs = foldl (\bs -> \case
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T.DBind b -> b:bs
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T.DData _ -> bs
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) []
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monoBind :: T.Bind -> M.Bind
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monoBind (T.Bind name args (e, t)) = M.Bind (monoId name) (map monoId args) (monoExpr e, monoType t)
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getDefsFromBinds :: [M.Bind] -> [M.Def]
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getDefsFromBinds = foldl (\ds b -> M.DBind b : ds) []
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monoData :: T.Data -> M.Data
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monoData (T.Data (T.Ident id) cs) = M.Data (M.TLit (M.Ident id)) (map monoConstructor cs)
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monoConstructor :: T.Constructor -> M.Constructor
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monoConstructor (T.Constructor (T.Ident i) t) = M.Constructor (M.Ident i) (monoType t)
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monoExpr :: T.Exp -> M.Exp
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monoExpr = \case
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T.EId (T.Ident i) -> M.EId (M.Ident i)
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T.ELit lit -> M.ELit $ monoLit lit
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T.ELet bind expt -> M.ELet (monoBind bind) (monoexpt expt)
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T.EApp expt1 expt2 -> M.EApp (monoexpt expt1) (monoexpt expt2)
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T.EAdd expt1 expt2 -> M.EAdd (monoexpt expt1) (monoexpt expt2)
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T.EAbs _i _expt -> error "BUG"
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T.ECase expt injs -> M.ECase (monoexpt expt) (monoInjs injs)
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monoAbsType :: T.Type -> M.Type
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monoAbsType (T.TLit u) = M.TLit (coerce u)
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monoAbsType (T.TVar _v) = M.TLit "Int"
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monoAbsType (T.TAll _v _t) = error "NOT ALL TYPES"
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monoAbsType (T.TFun t1 t2) = M.TFun (monoAbsType t1) (monoAbsType t2)
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monoAbsType (T.TData _ _) = error "NOT INDEXED TYPES"
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monoType :: T.Type -> M.Type
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monoType (T.TAll _ t) = monoType t
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monoType (T.TVar (T.MkTVar i)) = M.TLit "Int"
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monoType (T.TLit (T.Ident i)) = M.TLit (M.Ident i)
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monoType (T.TFun t1 t2) = M.TFun (monoType t1) (monoType t2)
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monoType (T.TData (T.Ident n) t) = M.TLit (M.Ident (n ++ concatMap show t))
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monoexpt :: T.ExpT -> M.ExpT
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monoexpt (e, t) = (monoExpr e, monoType t)
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monoId :: T.Id -> M.Id
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monoId (n, t) = (coerce n, monoType t)
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monoLit :: T.Lit -> M.Lit
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monoLit (T.LInt i) = M.LInt i
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monoLit (T.LChar c) = M.LChar c
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monoInjs :: [T.Branch] -> [M.Branch]
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monoInjs = map monoInj
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monoInj :: T.Branch -> M.Branch
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monoInj (T.Branch (init, t) expt) = M.Branch (monoInit init, monoType t) (monoexpt expt)
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monoInit :: T.Pattern -> M.Pattern
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monoInit (T.PVar (id, t)) = M.PVar (coerce id, monoType t)
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monoInit (T.PLit (lit, t)) = M.PLit (monoLit lit, monoType t)
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monoInit (T.PInj id ps) = M.PInj (coerce id) (monoInit <$> ps)
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-- DO NOT DO THIS FOR REAL THOUGH
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monoInit (T.PEnum (T.Ident i)) = M.PInj (M.Ident i) []
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monoInit T.PCatch = M.PCatch
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|
|
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13
src/TreeConverter.hs
Normal file
13
src/TreeConverter.hs
Normal file
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@ -0,0 +1,13 @@
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module TreeConverter where
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--import qualified Grammar.Abs as G
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--import qualified TypeChecker.TypeCheckerIr as T
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--
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--convertToTypecheckerIR :: G.Program -> Either String T.Program
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--convertToTypecheckerIR (G.Program defs) = T.Program (map convertDef defs)
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--
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--convertDef :: G.Bind -> T.Bind
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--convertDef (G.Bind name t _ args exp) = T.Bind (name, t) (map (\i -> (i, T.TMono "Int"))) (convertExp exp)
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--
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--
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6
test_program
Normal file
6
test_program
Normal file
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|
@ -0,0 +1,6 @@
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main : _Int ;
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main = double 3 ;
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double : _Int -> _Int ;
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double x = x + x ;
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112
tests/Tests.hs
Normal file
112
tests/Tests.hs
Normal file
|
|
@ -0,0 +1,112 @@
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{-# LANGUAGE OverloadedStrings #-}
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{-# OPTIONS_GHC -Wno-unrecognised-pragmas #-}
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{-# HLINT ignore "Use <$>" #-}
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module Main where
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import Grammar.Abs (Ident (Ident), Literal (LInt))
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import qualified TypeChecker.TypeCheckerIr as T
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import Monomorpher.Monomorpher (monomorphize)
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import Grammar.Print (printTree)
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import System.IO (stderr)
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import GHC.IO.Handle.Text (hPutStrLn)
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printToErr :: String -> IO ()
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printToErr = hPutStrLn stderr
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main :: IO ()
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main = do
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-- Only demonstrations for now, will fail if error is thrown.
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simpleDemo
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||||
-- A simple demo
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||||
simpleDemo = do
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demo "main = f 5" $ simpleProgram [f]
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(mainApp (T.EId ("f", typeIntToInt)) lit5)
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demo "main = bigId 5" $ simpleProgram [bigId]
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(mainApp (T.EId ("bigId", typeIntToInt)) lit5)
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demo "main = g 5" $ simpleProgram [g, bigId]
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(mainApp (T.EId ("g", typeIntToInt)) lit5)
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demo "main = (bigConst 5) ((bigConst 5) True)" $ simpleProgram [bigConst]
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(T.EApp typeInt
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-- (bigConst 5)
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(T.EApp typeIntToInt (T.EId ("bigConst", typeIntToIntToInt)) lit5)
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-- ((bigConst 5) True)
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(T.EApp typeInt
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(T.EApp typeBoolToInt
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(T.EId ("bigConst", typeIntToBoolToInt))
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lit5
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)
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litTrue
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||||
)
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)
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||||
-- Nice demo 👍
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||||
demo :: String -> T.Program -> IO ()
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demo label prg = do
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printToErr $ "#### " ++ label ++ " ####"
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printToErr " * Lifted Tree * "
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||||
printToErr $ printTree prg
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||||
printToErr " * Monomorphized Tree * "
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printToErr $ printTree (monomorphize prg)
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printToErr "##########\n"
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||||
|
||||
-- Programs in the form of "main = 'func' 'x'"
|
||||
simpleProgram :: [T.Bind] -> T.Exp -> T.Program
|
||||
simpleProgram binds input = T.Program (T.Bind ("main", typeInt) [] input:binds)
|
||||
|
||||
-- Applies two expressions, has type Int
|
||||
mainApp :: T.Exp -> T.Exp -> T.Exp
|
||||
mainApp = T.EApp typeInt
|
||||
|
||||
-- f :: Int -> Int
|
||||
-- f x = x + x
|
||||
f = T.Bind ("f", typeIntToInt) [("x", typeInt)] fExp
|
||||
fExp = T.EAdd typeInt (T.EId ("x", typeInt)) (T.EId ("x", typeInt))
|
||||
|
||||
-- bigId :: a -> a
|
||||
-- bigId x = x
|
||||
bigId = T.Bind (Ident "bigId", typeAToA) [(Ident "x", typeA)] bigIdExp
|
||||
bigIdExp = T.EAdd typeA (T.EId (Ident "x", typeA)) (T.EId ("x", typeA))
|
||||
|
||||
-- bigConst :: a -> a -> a
|
||||
-- bigConst x y = x
|
||||
bigConst = T.Bind ("bigConst", typeAToAToA) [("x", typeA), ("y", typeA)] bigConstExp
|
||||
bigConstExp = T.EId ("x", typeA)
|
||||
|
||||
-- g :: a -> a
|
||||
-- g x = x + (bigId x)
|
||||
g = T.Bind ("g", typeAToA) [("x", typeA)] gExp
|
||||
gExp = T.EAdd typeA (T.EId ("x", typeA)) (T.EApp typeA (T.EId ("bigId", typeAToA)) (T.EId ("x", typeA)))
|
||||
|
||||
-- | Reusable test constructs for Monomorpher.
|
||||
typeInt = T.TMono "Int"
|
||||
|
||||
typeIntToInt = T.TArr typeInt typeInt
|
||||
|
||||
typeIntToIntToInt = T.TArr typeInt typeIntToInt
|
||||
|
||||
|
||||
typeA = T.TPol $ Ident "a"
|
||||
|
||||
typeAToA = T.TArr typeA typeA
|
||||
|
||||
typeAToAToA = T.TArr typeA typeAToA
|
||||
|
||||
|
||||
typeBool = T.TMono "Bool"
|
||||
|
||||
typeBoolToBool = T.TArr typeBool typeBool
|
||||
|
||||
typeBoolToBoolToBool = T.TArr typeBool typeBoolToBool
|
||||
|
||||
|
||||
lit5 = T.ELit typeInt $ T.LInt 5
|
||||
|
||||
litTrue = T.ELit typeBool T.LBool
|
||||
|
||||
|
||||
typeBoolToInt = T.TArr typeBool typeInt
|
||||
typeIntToBoolToInt = T.TArr typeInt typeBoolToInt
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue