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Merge branch 'proper-continuations' into compile-python-calls
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ccfa49aaee
@ -14,6 +14,7 @@ import AST.Element
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import Control.Effect hiding ((:+:))
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import Control.Effect.Reader
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import Control.Monad.Fail
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import Control.Monad ((>=>))
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import Data.Coerce
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import Data.Core as Core
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import Data.Foldable
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@ -71,11 +72,11 @@ class Compile (py :: * -> *) where
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, MonadFail m
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)
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=> py Span
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-> m (t Name)
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-> m (t Name)
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-> (t Name -> m (t Name))
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-> (t Name -> m (t Name))
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default compile :: (MonadFail m, Show (py Span)) => py Span -> m (t Name) -> m (t Name)
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compile a _ = defaultCompile a
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default compile :: (MonadFail m, Show (py Span)) => py Span -> (t Name -> m (t Name)) -> (t Name -> m (t Name))
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compile a _ _ = defaultCompile a
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toplevelCompile :: ( CoreSyntax syn t
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, Member (Reader SourcePath) sig
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@ -85,7 +86,7 @@ toplevelCompile :: ( CoreSyntax syn t
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)
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=> Py.Module Span
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-> m (t Name)
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toplevelCompile = flip compile (pure none)
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toplevelCompile py = compile py pure none
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-- | TODO: This is not right, it should be a reference to a Preluded
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-- NoneType instance, but it will do for now.
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@ -177,13 +178,12 @@ instance Compile Py.Assignment where
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{ left = SingleIdentifier name
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, right = Just rhs
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, ann
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} cc = do
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} cc next = do
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p <- ask @SourcePath
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(names, val) <- desugar [Located (locFromTSSpan p ann) name] rhs
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-- BUG: ignoring the continuation here
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compile val (pure none) >>= foldr collapseDesugared (const cc) names >>= locate it
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compile val pure next >>= foldr collapseDesugared cc names >>= locate it
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compile other _ = fail ("Unhandled assignment case: " <> show other)
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compile other _ _ = fail ("Unhandled assignment case: " <> show other)
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-- End assignment compilation
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@ -192,7 +192,7 @@ instance Compile Py.Await
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instance Compile Py.BinaryOperator
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instance Compile Py.Block where
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compile it@Py.Block{ Py.extraChildren = body} cc = locate it =<< foldr compile cc body
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compile it@Py.Block{ Py.extraChildren = body} cc next = foldr compile cc body next >>= locate it
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instance Compile Py.BooleanOperator
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instance Compile Py.BreakStatement
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@ -233,17 +233,17 @@ instance Compile Py.ExpressionStatement where
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compile it@Py.ExpressionStatement
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{ Py.extraChildren = children
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} cc = do
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foldr compile cc children >>= locate it
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foldr compile cc children >=> locate it
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instance Compile Py.ExpressionList where
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compile it@Py.ExpressionList { Py.extraChildren = [child] } cc
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= compile child cc >>= locate it
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= compile child cc >=> locate it
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compile Py.ExpressionList { Py.extraChildren = items } _
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= fail ("unimplemented: ExpressionList of length " <> show items)
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= const (fail ("unimplemented: ExpressionList of length " <> show items))
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instance Compile Py.False where
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compile it _ = locate it $ bool False
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compile it cc _ = locate it (bool True) >>= cc
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instance Compile Py.Float
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instance Compile Py.ForStatement
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@ -253,17 +253,17 @@ instance Compile Py.FunctionDefinition where
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{ name = Py.Identifier _ann1 name
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, parameters = Py.Parameters _ann2 parameters
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, body
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} cc = do
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} cc next = do
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-- Compile each of the parameters, then the body.
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parameters' <- traverse param parameters
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-- BUG: ignoring the continuation here
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body' <- compile body (pure none)
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body' <- compile body pure next
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-- Build a lambda.
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located <- locate it (lams parameters' body')
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-- Give it a name (below), then augment the current continuation
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-- with the new name (with 'def'), so that calling contexts know
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-- that we have built an exportable definition.
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assigning located <$> local (def (Name name)) cc
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assigning located <$> local (def (Name name)) (cc next)
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where param (Py.Parameter (Prj (Py.Identifier _pann pname))) = pure . named' . Name $ pname
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param x = unimplemented x
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unimplemented x = fail $ "unimplemented: " <> show x
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@ -274,18 +274,18 @@ instance Compile Py.GeneratorExpression
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instance Compile Py.GlobalStatement
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instance Compile Py.Identifier where
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compile Py.Identifier { text } _ = pure . pure . Name $ text
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compile Py.Identifier { text } cc _next = cc . pure . Name $ text
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instance Compile Py.IfStatement where
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compile it@Py.IfStatement{ condition, consequence, alternative} cc =
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compile it@Py.IfStatement{ condition, consequence, alternative} cc next =
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locate it =<< (if'
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<$> compile condition (pure none)
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<*> compile consequence cc
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<*> foldr clause cc alternative
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<$> compile condition pure next
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<*> compile consequence cc next
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<*> foldr clause (cc next) alternative
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)
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where clause (R1 Py.ElseClause{ body }) _ = compile body cc
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where clause (R1 Py.ElseClause{ body }) _ = compile body cc next
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clause (L1 Py.ElifClause{ condition, consequence }) rest =
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if' <$> compile condition (pure none) <*> compile consequence cc <*> rest
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if' <$> compile condition pure next <*> compile consequence cc next <*> rest
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instance Compile Py.ImportFromStatement
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@ -297,17 +297,17 @@ instance Compile Py.List
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instance Compile Py.ListComprehension
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instance Compile Py.Module where
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compile it@Py.Module { Py.extraChildren = stmts } _cc = do
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compile it@Py.Module { Py.extraChildren = stmts } _cc =
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-- This action gets passed to compile, which means it is the
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-- final action taken after the compiling fold finishes. It takes
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-- care of listening for the current set of bound variables (which
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-- is augmented by assignments and function definitions) and
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-- creating a record corresponding to those bindings.
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let buildRecord = do
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let buildRecord _ = do
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bindings <- asks @Bindings (toList . unBindings)
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let buildName n = (n, pure n)
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pure . record . fmap buildName $ bindings
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foldr compile buildRecord stmts >>= locate it
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in foldr compile buildRecord stmts >=> locate it
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instance Compile Py.NamedExpression
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instance Compile Py.None
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@ -319,17 +319,16 @@ instance Compile Py.ParenthesizedExpression where
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= compile extraChildren cc >>= locate it
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instance Compile Py.PassStatement where
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compile it@Py.PassStatement {} _ = locate it $ Core.unit
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compile it@Py.PassStatement {} cc _ = locate it Core.unit >>= cc
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deriving instance Compile Py.PrimaryExpression
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instance Compile Py.PrintStatement
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instance Compile Py.ReturnStatement where
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compile it@Py.ReturnStatement { Py.extraChildren = vals } _ = case vals of
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compile it@Py.ReturnStatement { Py.extraChildren = vals } _ next = case vals of
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Nothing -> locate it $ none
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-- BUG: ignoring the continuation here
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Just Py.ExpressionList { extraChildren = [val] } -> compile val (pure none) >>= locate it
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Just Py.ExpressionList { extraChildren = [val] } -> compile val pure next >>= locate it
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Just Py.ExpressionList { extraChildren = vals } -> fail ("unimplemented: return statement returning " <> show (length vals) <> " values")
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@ -343,14 +342,14 @@ instance Compile Py.String
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instance Compile Py.Subscript
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instance Compile Py.True where
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compile it _ = locate it $ bool True
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compile it cc _next = locate it (bool True) >>= cc
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instance Compile Py.TryStatement
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instance Compile Py.Tuple where
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compile it@Py.Tuple { Py.extraChildren = [] } _ = locate it unit
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compile it@Py.Tuple { Py.extraChildren = [] } cc _ = locate it unit >>= cc
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compile it _
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compile it _ _
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= fail ("Unimplemented: non-empty tuple " <> show it)
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instance Compile Py.UnaryOperator
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@ -1,3 +1,3 @@
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# CHECK-JQ: .scope == {}
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# CHECK-TREE: (#unit)
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# CHECK-TREE: #record{}
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()
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