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Split Domain into multiple effects.

This commit is contained in:
Rob Rix 2019-12-20 12:24:04 -05:00
parent 661227365a
commit c07324ff90
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5 changed files with 110 additions and 77 deletions

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@ -123,23 +123,23 @@ instance ( Applicative term
)
=> Algebra (A.Domain term Addr (Concrete term) :+: sig) (DomainC term m) where
alg = \case
L (A.Unit k) -> k Unit
L (A.Bool b k) -> k (Bool b)
L (A.AsBool c k) -> case c of
L (L (A.Unit k)) -> k Unit
L (R (L (A.Bool b k))) -> k (Bool b)
L (R (L (A.AsBool c k))) -> case c of
Bool b -> k b
_ -> fail "expected Bool"
L (A.String s k) -> k (String s)
L (A.AsString c k) -> case c of
L (R (R (L (A.String s k)))) -> k (String s)
L (R (R (L (A.AsString c k)))) -> case c of
String s -> k s
_ -> fail "expected String"
L (A.Lam b k) -> do
L (R (R (R (L (A.Lam b k))))) -> do
path <- ask
span <- ask
k (Closure path span b)
L (A.AsLam c k) -> case c of
L (R (R (R (L (A.AsLam c k))))) -> case c of
Closure _ _ b -> k b
_ -> fail "expected Closure"
L (A.Record fields k) -> do
L (R (R (R (R (A.Record fields k))))) -> do
eval <- DomainC ask
fields' <- for fields $ \ (name, t) -> do
addr <- A.alloc name
@ -147,7 +147,7 @@ instance ( Applicative term
A.assign @Addr @(Concrete term) addr v
pure (name, addr)
k (Record (Map.fromList fields'))
L (A.AsRecord c k) -> case c of
L (R (R (R (R (A.AsRecord c k))))) -> case c of
Record fields -> k (map (fmap pure) (Map.toList fields))
_ -> fail "expected Record"
R other -> DomainC (send (handleCoercible other))

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@ -1,23 +1,23 @@
{-# LANGUAGE AllowAmbiguousTypes #-}
{-# LANGUAGE DeriveFunctor #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE QuantifiedConstraints #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TypeApplications #-}
{-# LANGUAGE TypeOperators #-}
module Analysis.Effect.Domain
( -- * Domain effect
unit
, UnitDomain(..)
, bool
, asBool
, BoolDomain(..)
, string
, asString
, StringDomain(..)
, lam
, asLam
, FunctionDomain(..)
, record
, asRecord
, Domain(..)
, RecordDomain(..)
, Domain
-- * Re-exports
, Algebra
, Has
@ -30,49 +30,82 @@ import Data.Text (Text)
import GHC.Generics (Generic1)
import Syntax.Scope (Scope)
unit :: forall term addr abstract m sig . Has (Domain term addr abstract) sig m => m abstract
unit = send (Unit @term @addr pure)
unit :: Has (UnitDomain abstract) sig m => m abstract
unit = send (Unit pure)
bool :: forall term addr abstract m sig . Has (Domain term addr abstract) sig m => Bool -> m abstract
bool b = send (Bool @term @addr b pure)
data UnitDomain abstract m k
= Unit (abstract -> m k)
deriving (Functor, Generic1)
asBool :: forall term addr abstract m sig . Has (Domain term addr abstract) sig m => abstract -> m Bool
asBool v = send (AsBool @term @addr v pure)
string :: forall term addr abstract m sig . Has (Domain term addr abstract) sig m => Text -> m abstract
string s = send (String @term @addr s pure)
asString :: forall term addr abstract m sig . Has (Domain term addr abstract) sig m => abstract -> m Text
asString v = send (AsString @term @addr v pure)
instance HFunctor (UnitDomain abstract)
instance Effect (UnitDomain abstract)
lam :: Has (Domain term addr abstract) sig m => Named (Scope () term addr) -> m abstract
bool :: Has (BoolDomain abstract) sig m => Bool -> m abstract
bool b = send (Bool b pure)
asBool :: Has (BoolDomain abstract) sig m => abstract -> m Bool
asBool v = send (AsBool v pure)
data BoolDomain abstract m k
= Bool Bool (abstract -> m k)
| AsBool abstract (Bool -> m k)
deriving (Functor, Generic1)
instance HFunctor (BoolDomain abstract)
instance Effect (BoolDomain abstract)
string :: Has (StringDomain abstract) sig m => Text -> m abstract
string s = send (String s pure)
asString :: Has (StringDomain abstract) sig m => abstract -> m Text
asString v = send (AsString v pure)
data StringDomain abstract m k
= String Text (abstract -> m k)
| AsString abstract (Text -> m k)
deriving (Functor, Generic1)
instance HFunctor (StringDomain abstract)
instance Effect (StringDomain abstract)
lam :: Has (FunctionDomain term addr abstract) sig m => Named (Scope () term addr) -> m abstract
lam b = send (Lam b pure)
-- FIXME: Support partial concretization of lambdas.
asLam :: Has (Domain term addr abstract) sig m => abstract -> m (Named (Scope () term addr))
asLam :: Has (FunctionDomain term addr abstract) sig m => abstract -> m (Named (Scope () term addr))
asLam v = send (AsLam v pure)
data FunctionDomain term addr abstract m k
= Lam (Named (Scope () term addr)) (abstract -> m k)
| AsLam abstract (Named (Scope () term addr) -> m k)
deriving (Functor, Generic1)
record :: forall term addr abstract m sig . Has (Domain term addr abstract) sig m => [(Name, term addr)] -> m abstract
instance HFunctor (FunctionDomain term addr abstract)
instance Effect (FunctionDomain term addr abstract)
record :: Has (RecordDomain term addr abstract) sig m => [(Name, term addr)] -> m abstract
record fs = send (Record fs pure)
-- FIXME: Support partial concretization of records.
asRecord :: forall term addr abstract m sig . Has (Domain term addr abstract) sig m => abstract -> m [(Name, term addr)]
asRecord :: Has (RecordDomain term addr abstract) sig m => abstract -> m [(Name, term addr)]
asRecord v = send (AsRecord v pure)
data Domain term addr abstract m k
= Unit (abstract -> m k)
| Bool Bool (abstract -> m k)
| AsBool abstract (Bool -> m k)
| String Text (abstract -> m k)
| AsString abstract (Text -> m k)
| Lam (Named (Scope () term addr)) (abstract -> m k)
| AsLam abstract (Named (Scope () term addr) -> m k)
| Record [(Name, term addr)] (abstract -> m k)
data RecordDomain term addr abstract m k
= Record [(Name, term addr)] (abstract -> m k)
| AsRecord abstract ([(Name, term addr)] -> m k)
deriving (Functor, Generic1)
instance HFunctor (Domain term addr abstract)
instance Effect (Domain term addr abstract)
instance HFunctor (RecordDomain term addr abstract)
instance Effect (RecordDomain term addr abstract)
type Domain term addr abstract
= UnitDomain abstract
:+: BoolDomain abstract
:+: StringDomain abstract
:+: FunctionDomain term addr abstract
:+: RecordDomain term addr abstract

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@ -125,25 +125,25 @@ instance MonadTrans (DomainC term) where
-- FIXME: decompose into a product domain and two atomic domains
instance (Alternative m, Has (Env Addr :+: A.Heap Addr (Value (Semi term)) :+: Reader Path.AbsRelFile :+: Reader Span) sig m, MonadFail m) => Algebra (A.Domain term Addr (Value (Semi term)) :+: sig) (DomainC term m) where
alg = \case
L (A.Unit k) -> k mempty
L (A.Bool _ k) -> k mempty
L (A.AsBool _ k) -> k True <|> k False
L (A.String s k) -> k (Value (String s) mempty)
L (A.AsString _ k) -> k mempty
L (A.Lam b k) -> do
L (L (A.Unit k)) -> k mempty
L (R (L (A.Bool _ k))) -> k mempty
L (R (L (A.AsBool _ k))) -> k True <|> k False
L (R (R (L (A.String s k)))) -> k (Value (String s) mempty)
L (R (R (L (A.AsString _ k)))) -> k mempty
L (R (R (R (L (A.Lam b k))))) -> do
path <- ask
span <- ask
k (Value (Closure path span b) mempty)
L (A.AsLam (Value v _) k) -> case v of
L (R (R (R (L (A.AsLam (Value v _) k))))) -> case v of
Closure _ _ b -> k b
String _ -> fail $ "expected closure, got String"
Abstract -> fail $ "expected closure, got Abstract"
L (A.Record f k) -> do
L (R (R (R (R (A.Record f k))))) -> do
eval <- DomainC ask
fields <- for f $ \ (k, t) -> do
addr <- alloc @Addr k
v <- lift (eval t)
v <$ A.assign @Addr @(Value (Semi term)) addr v
k (fold fields)
L (A.AsRecord _ k) -> k []
L (R (R (R (R (A.AsRecord _ k))))) -> k []
R other -> DomainC (send (handleCoercible other))

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@ -230,23 +230,23 @@ instance ( Alternative m
)
=> Algebra (A.Domain term Addr Type :+: sig) (DomainC term m) where
alg = \case
L (A.Unit k) -> k (Alg Unit)
L (A.Bool _ k) -> k (Alg Bool)
L (A.AsBool t k) -> do
L (L (A.Unit k)) -> k (Alg Unit)
L (R (L (A.Bool _ k))) -> k (Alg Bool)
L (R (L (A.AsBool t k))) -> do
unify t (Alg Bool)
k True <|> k False
L (A.String _ k) -> k (Alg String)
L (A.AsString t k) -> do
L (R (R (L (A.String _ k)))) -> k (Alg String)
L (R (R (L (A.AsString t k)))) -> do
unify t (Alg String)
k mempty
L (A.Lam (Named n b) k) -> do
L (R (R (R (L (A.Lam (Named n b) k))))) -> do
eval <- DomainC ask
addr <- alloc @Name n
arg <- meta
A.assign addr arg
ty <- lift (eval (instantiate1 (pure n) b))
k (Alg (arg :-> ty))
L (A.AsLam t k) -> do
L (R (R (R (L (A.AsLam t k))))) -> do
arg <- meta
ret <- meta
unify t (Alg (arg :-> ret))
@ -259,7 +259,7 @@ instance ( Alternative m
Alg (_ :-> b) -> send . Intro.Lam . Named (Name mempty) . lift <$> concretize b
Alg (Record t) -> Intro.record <$> traverse (traverse concretize) (Map.toList t)
t -> fail $ "cant concretize " <> show t -- FIXME: concretize type variables by incrementally solving constraints
L (A.Record fields k) -> do
L (R (R (R (R (A.Record fields k))))) -> do
eval <- DomainC ask
fields' <- for fields $ \ (k, t) -> do
addr <- alloc @Addr k
@ -267,7 +267,7 @@ instance ( Alternative m
(k, v) <$ A.assign addr v
-- FIXME: should records reference types by address instead?
k (Alg (Record (Map.fromList fields')))
L (A.AsRecord t k) -> do
L (R (R (R (R (A.AsRecord t k))))) -> do
unify t (Alg (Record mempty))
k mempty -- FIXME: return whatever fields we have, when its actually a Record

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@ -74,19 +74,19 @@ eval eval = \case
A.assign addr a'
A.bind n addr (eval (instantiate1 (pure addr) b))
If c t e -> do
c' <- eval c >>= A.asBool @Term @address
c' <- eval c >>= A.asBool
if c' then eval t else eval e
Load p -> eval p >>= A.asString @Term @address >> A.unit @Term @address -- FIXME: add a load command or something
Unit -> A.unit @Term @address
Bool b -> A.bool @Term @address b
String s -> A.string @Term @address s
Load p -> eval p >>= A.asString >> A.unit -- FIXME: add a load command or something
Unit -> A.unit
Bool b -> A.bool b
String s -> A.string s
Record fields -> A.record fields
a :. b -> do
a' <- eval a >>= A.asRecord @Term @address
a' <- eval a >>= A.asRecord
maybe (freeVariable (show b)) eval (lookup b a')
a :? b -> do
a' <- eval a >>= A.asRecord @Term @address
A.bool @Term @address (isJust (lookup b a'))
A.bool (isJust (lookup b a'))
a := b -> do
b' <- eval b
@ -103,10 +103,10 @@ eval eval = \case
Term.Var n -> pure n
Term.Alg (R c) -> case c of
If c t e -> do
c' <- eval c >>= A.asBool @Term @address
c' <- eval c >>= A.asBool
if c' then ref t else ref e
a :. b -> do
a' <- eval a >>= A.asRecord @Term @address
a' <- eval a >>= A.asRecord
maybe (freeVariable (show b)) ref (lookup b a')
c -> invalidRef (show c)
Term.Alg (L (Ann span c)) -> local (const span) (ref c)