Add implicit foralls for bidir, update and unify pipeline
This commit is contained in:
Martin Fredin
parent
12bca1c32d
commit
9870802371
33 changed files with 1010 additions and 1055 deletions
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@ -1,10 +1,16 @@
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module Main where
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import Test.Hspec
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import TestAnnForall (testAnnForall)
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import TestRenamer (testRenamer)
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import TestReportForall (testReportForall)
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import TestTypeCheckerBidir (testTypeCheckerBidir)
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import TestTypeCheckerHm (testTypeCheckerHm)
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main = hspec $ do
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testReportForall
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testAnnForall
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testRenamer
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testTypeCheckerBidir
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testTypeCheckerHm
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113
tests/TestAnnForall.hs
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113
tests/TestAnnForall.hs
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@ -0,0 +1,113 @@
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{-# LANGUAGE PatternSynonyms #-}
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{-# HLINT ignore "Use camelCase" #-}
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{-# OPTIONS_GHC -Wno-unrecognised-pragmas #-}
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{-# LANGUAGE QualifiedDo #-}
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module TestAnnForall (testAnnForall, test) where
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import AnnForall (annotateForall)
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import Control.Monad ((<=<))
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import qualified DoStrings as D
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import Grammar.ErrM (Err, pattern Bad, pattern Ok)
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import Grammar.Layout (resolveLayout)
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import Grammar.Par (myLexer, pProgram)
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import Grammar.Print (printTree)
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import Renamer.Renamer (rename)
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import ReportForall (reportForall)
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import Test.Hspec (describe, hspec, shouldBe,
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shouldNotSatisfy, shouldSatisfy,
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shouldThrow, specify)
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import TypeChecker.ReportTEVar (reportTEVar)
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import TypeChecker.TypeChecker (TypeChecker (Bi, Hm))
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import TypeChecker.TypeCheckerBidir (typecheck)
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import qualified TypeChecker.TypeCheckerIr as T
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test = hspec testAnnForall
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testAnnForall = describe "Test AnnForall" $ do
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ann_data1
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ann_data2
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ann_bad_data1
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ann_bad_data2
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ann_bad_data3
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ann_sig1
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ann_sig2
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ann_bind
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ann_data1 = specify "Annotate data type" $
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D.do "data Either (a b) where"
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" Left : a -> Either (a b)"
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" Right : b -> Either (a b)"
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`shouldBePrg`
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D.do "data forall a. forall b. Either (a b) where"
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" Left : a -> Either (a b)"
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" Right : b -> Either (a b)"
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ann_data2 = specify "Annotate constructor with additional type variable" $
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D.do "data forall a. forall b. Either (a b) where"
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" Left : c -> a -> Either (a b)"
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" Right : b -> Either (a b)"
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`shouldBePrg`
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D.do "data forall a. forall b. Either (a b) where"
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" Left : forall c. c -> a -> Either (a b)"
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" Right : b -> Either (a b)"
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ann_bad_data1 = specify "Bad data type variables" $
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D.do "data Either (Int b) where"
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" Left : a -> Either (a b)"
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" Right : b -> Either (a b)"
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`shouldBeErr`
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"Misformed data declaration: Non type variable argument"
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ann_bad_data2 = specify "Bad data identifer" $
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D.do "data Int -> Either (a b) where"
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" Left : a -> Either (a b)"
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" Right : b -> Either (a b)"
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`shouldBeErr`
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"Misformed data declaration"
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ann_bad_data3 = specify "Constructor forall duplicate" $
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D.do "data Int -> Either (a b) where"
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" Left : forall a. a -> Either (a b)"
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" Right : b -> Either (a b)"
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`shouldBeErr`
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"Misformed data declaration"
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ann_sig1 = specify "Annotate signature" $
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"f : a -> b -> (forall a. a -> a) -> a"
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`shouldBePrg`
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"f : forall a. forall b. a -> b -> (forall a. a -> a) -> a"
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ann_sig2 = specify "Annotate signature 2" $
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D.do "const : forall a. forall b. a -> b -> a"
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"const x y = x"
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"main = const 'a' 65"
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`shouldBePrg`
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D.do "const : forall a. forall b. a -> b -> a"
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"const x y = x"
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"main = const 'a' 65"
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ann_bind = specify "Annotate bind" $
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"f = (\\x.\\y. x : a -> b -> a) 4"
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`shouldBePrg`
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"f = (\\x.\\y. x : forall a. forall b. a -> b -> a) 4"
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shouldBeErr s err = run s `shouldBe` Bad err
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shouldBePrg s1 s2
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| Ok p2 <- run' s2 = run s1 `shouldBe` Ok p2
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| otherwise = error ("Faulty expectation \n" ++ show (run' s2))
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run = annotateForall <=< run'
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run' s = do
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p <- run'' s
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reportForall Bi p
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pure p
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run'' = pProgram . resolveLayout True . myLexer
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runPrint = (putStrLn . either show printTree . run) $
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D.do "data forall a. forall b. Either (a b) where"
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" Left : c -> a -> Either (a b)"
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" Right : b -> Either (a b)"
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96
tests/TestRenamer.hs
Normal file
96
tests/TestRenamer.hs
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@ -0,0 +1,96 @@
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{-# LANGUAGE LambdaCase #-}
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{-# LANGUAGE PatternSynonyms #-}
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{-# HLINT ignore "Use camelCase" #-}
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{-# OPTIONS_GHC -Wno-unrecognised-pragmas #-}
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{-# LANGUAGE BangPatterns #-}
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{-# LANGUAGE QualifiedDo #-}
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module TestRenamer (testRenamer, test, runPrint) where
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import AnnForall (annotateForall)
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import Control.Exception (ErrorCall (ErrorCall),
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Exception (displayException),
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SomeException (SomeException),
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evaluate, try)
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import Control.Exception.Extra (try_)
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import Control.Monad (unless, (<=<))
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import Control.Monad.Except (throwError)
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import Data.Either.Extra (fromEither)
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import qualified DoStrings as D
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import GHC.Generics (Generic, Generic1)
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import Grammar.Abs (Program (Program))
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import Grammar.ErrM (Err, pattern Bad, pattern Ok)
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import Grammar.Layout (resolveLayout)
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import Grammar.Par (myLexer, pProgram)
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import Grammar.Print (printTree)
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import Renamer.Renamer (rename)
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import System.IO.Error (catchIOError, tryIOError)
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import Test.Hspec (anyErrorCall, anyException,
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describe, hspec, shouldBe,
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shouldNotSatisfy, shouldReturn,
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shouldSatisfy, shouldThrow,
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specify)
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import TypeChecker.ReportTEVar (reportTEVar)
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import TypeChecker.TypeCheckerBidir (typecheck)
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import qualified TypeChecker.TypeCheckerIr as T
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-- FIXME tests sucks
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test = hspec testRenamer
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testRenamer = describe "Test Renamer" $ do
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rn_data1
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rn_data2
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rn_sig
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rn_bind1
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rn_bind2
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rn_data1 = specify "Rename data type" . shouldSatisfyOk $
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D.do "data forall a. forall b. Either (a b) where"
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" Left : a -> Either (a b)"
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" Right : b -> Either (a b)"
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rn_data2 = specify "Rename data type forall in constructor " . shouldSatisfyOk $
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D.do "data forall a. forall b. Either (a b) where"
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" Left : forall c. c -> a -> Either (a b)"
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" Right : b -> Either (a b)"
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rn_sig = specify "Rename signature" $ shouldSatisfyOk
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"f : forall a. forall b. a -> b -> (forall a. a -> a) -> a"
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rn_bind1 = specify "Rename simple bind" $ shouldSatisfyOk
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"f x = (\\y. let y2 = y + 1 in y2) (x + 1)"
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rn_bind2 = specify "Rename bind with case" . shouldSatisfyOk $
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D.do "data forall a. List (a) where"
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" Nil : List (a) "
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" Cons : a -> List (a) -> List (a)"
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"length : forall a. List (a) -> Int"
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"length list = case list of"
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" Nil => 0"
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" Cons x Nil => 1"
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" Cons x (Cons y ys) => 2 + length ys"
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runPrint = putStrLn . either show printTree . run $
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D.do "data forall a. List (a) where"
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" Nil : List (a) "
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" Cons : a -> List (a) -> List (a)"
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"length : forall a. List (a) -> Int"
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"length list = case list of"
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" Nil => 0"
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" Cons x Nil => 1"
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" Cons x (Cons y ys) => 2 + length ys"
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shouldSatisfyOk s = run s `shouldSatisfy` ok
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ok = \case
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Ok !_ -> True
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Bad !_ -> False
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shouldBeErr s err = run s `shouldBe` Bad err
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run = rename <=< run'
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run' = pProgram . resolveLayout True . myLexer
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47
tests/TestReportForall.hs
Normal file
47
tests/TestReportForall.hs
Normal file
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@ -0,0 +1,47 @@
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{-# LANGUAGE PatternSynonyms #-}
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{-# HLINT ignore "Use camelCase" #-}
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{-# OPTIONS_GHC -Wno-unrecognised-pragmas #-}
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module TestReportForall (testReportForall, test) where
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import AnnForall (annotateForall)
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import Control.Monad ((<=<))
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import qualified DoStrings as D
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import Grammar.ErrM (Err, pattern Bad, pattern Ok)
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import Grammar.Layout (resolveLayout)
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import Grammar.Par (myLexer, pProgram)
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import Grammar.Print (printTree)
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import Renamer.Renamer (rename)
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import ReportForall (reportForall)
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import Test.Hspec (describe, hspec, shouldBe,
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shouldNotSatisfy, shouldSatisfy,
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shouldThrow, specify)
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import TypeChecker.TypeChecker (TypeChecker (Bi, Hm))
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testReportForall = describe "Test ReportForall" $ do
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rp_unused1
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rp_unused2
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rp_forall
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test = hspec testReportForall
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rp_unused1 = specify "Unused forall 1" $
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"g : forall a. forall a. a -> (forall a. a -> a) -> a"
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`shouldBeErrBi`
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"Duplicate forall"
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rp_unused2 = specify "Unused forall 2" $
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"g : forall a. (forall a. a -> a) -> Int"
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`shouldBeErrBi`
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"Unused forall"
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rp_forall = specify "Rank2 forall with Hm" $
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"f : a -> b -> (forall a. a -> a) -> a"
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`shouldBeErrHm`
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"Higher rank forall not allowed"
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shouldBeErrBi = shouldBeErr Bi
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shouldBeErrHm = shouldBeErr Hm
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shouldBeErr tc s err = run tc s `shouldBe` Bad err
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run tc = reportForall tc <=< pProgram . resolveLayout True . myLexer
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@ -8,19 +8,25 @@ module TestTypeCheckerBidir (test, testTypeCheckerBidir) where
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import Test.Hspec
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import AnnForall (annotateForall)
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import Control.Monad ((<=<))
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import Grammar.Abs (Program)
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import Grammar.ErrM (Err, pattern Bad, pattern Ok)
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import Grammar.Layout (resolveLayout)
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import Grammar.Par (myLexer, pProgram)
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import Grammar.Print (printTree)
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import Renamer.Renamer (rename)
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import TypeChecker.RemoveTEVar (RemoveTEVar (rmTEVar))
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import ReportForall (reportForall)
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import TypeChecker.RemoveForall (removeForall)
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import TypeChecker.ReportTEVar (reportTEVar)
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import TypeChecker.TypeChecker (TypeChecker (Bi))
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import TypeChecker.TypeCheckerBidir (typecheck)
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import qualified TypeChecker.TypeCheckerIr as T
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test = hspec testTypeCheckerBidir
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testTypeCheckerBidir = describe "Bidirectional type checker test" $ do
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testTypeCheckerBidir = describe "Test Bidirectional type checker" $ do
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tc_id
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tc_double
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tc_add_lam
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@ -39,7 +45,7 @@ testTypeCheckerBidir = describe "Bidirectional type checker test" $ do
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tc_id =
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specify "Basic identity function polymorphism" $
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run
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[ "id : forall a. a -> a"
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[ "id : a -> a"
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, "id x = x"
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, "main = id 4"
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]
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@ -60,7 +66,7 @@ tc_add_lam =
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tc_const =
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specify "Basic polymorphism with multiple type variables" $
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run
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[ "const : forall a. forall b. a -> b -> a"
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[ "const : a -> b -> a"
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, "const x y = x"
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, "main = const 'a' 65"
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]
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@ -69,9 +75,9 @@ tc_const =
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tc_simple_rank2 =
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specify "Simple rank two polymorphism" $
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run
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[ "id : forall a. a -> a"
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[ "id : a -> a"
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, "id x = x"
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, "f : forall a. a -> (forall b. b -> b) -> a"
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, "f : a -> (forall b. b -> b) -> a"
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, "f x g = g x"
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, "main = f 4 id"
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]
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@ -80,11 +86,11 @@ tc_simple_rank2 =
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tc_rank2 =
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specify "Rank two polymorphism is ok" $
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run
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[ "const : forall a. forall b. a -> b -> a"
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[ "const : a -> b -> a"
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, "const x y = x"
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, "rank2 : forall a. forall b. a -> (forall c. c -> Int) -> b -> Int"
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, "rank2 : a -> (forall c. c -> Int) -> b -> Int"
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, "rank2 x f y = f x + f y"
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, "main = rank2 3 (\\x. const 5 x : forall a. a -> Int) 'h'"
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, "main = rank2 3 (\\x. const 5 x : a -> Int) 'h'"
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]
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`shouldSatisfy` ok
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@ -93,9 +99,9 @@ tc_identity = describe "(∀b. b → b) should only accept the identity function
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specify "identity is accepted" $ run (fs ++ id) `shouldSatisfy` ok
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where
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fs =
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[ "f : forall a. a -> (forall b. b -> b) -> a"
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[ "f : a -> (forall b. b -> b) -> a"
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, "f x g = g x"
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, "id : forall a. a -> a"
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, "id : a -> a"
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, "id x = x"
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, "id_int : Int -> Int"
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, "id_int x = x"
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@ -114,7 +120,7 @@ tc_pair = describe "Pair. Type variables in Pair a b typechecked" $ do
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specify "Correct arguments are accepted" $ run (fs ++ correct) `shouldSatisfy` ok
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where
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fs =
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[ "data forall a. forall b. Pair (a b) where"
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[ "data Pair (a b) where"
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, " Pair : a -> b -> Pair (a b)"
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, "main : Pair (Int Char)"
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]
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@ -126,7 +132,7 @@ tc_tree = describe "Tree. Recursive data type" $ do
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specify "Correct tree is accepted" $ run (fs ++ correct) `shouldSatisfy` ok
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where
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fs =
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[ "data forall a. Tree (a) where"
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[ "data Tree (a) where"
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, " Node : a -> Tree (a) -> Tree (a) -> Tree (a)"
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, " Leaf : a -> Tree (a)"
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]
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@ -195,30 +201,30 @@ tc_pol_case = describe "Polymophic and recursive pattern matching" $ do
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run (fs ++ correct4) `shouldSatisfy` ok
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where
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fs =
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[ "data forall a. List (a) where"
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[ "data List (a) where"
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, " Nil : List (a)"
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, " Cons : a -> List (a) -> List (a)"
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]
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wrong1 =
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[ "length : forall c. List (c) -> Int"
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[ "length : List (c) -> Int"
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, "length = \\list. case list of"
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, " Nil => 0"
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, " Cons 6 xs => 1 + length xs"
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]
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wrong2 =
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[ "length : forall c. List (c) -> Int"
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[ "length : List (c) -> Int"
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, "length = \\list. case list of"
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, " Cons => 0"
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, " Cons x xs => 1 + length xs"
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]
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wrong3 =
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[ "length : forall c. List (c) -> Int"
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[ "length : List (c) -> Int"
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, "length = \\list. case list of"
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, " 0 => 0"
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, " Cons x xs => 1 + length xs"
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]
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wrong4 =
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[ "elems : forall c. List (List(c)) -> Int"
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[ "elems : List (List(c)) -> Int"
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, "elems = \\list. case list of"
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, " Nil => 0"
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, " Cons Nil Nil => 0"
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@ -226,14 +232,14 @@ tc_pol_case = describe "Polymophic and recursive pattern matching" $ do
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, " Cons (Cons Nil ys) xs => 1 + elems (Cons ys xs)"
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]
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correct1 =
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[ "length : forall c. List (c) -> Int"
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[ "length : List (c) -> Int"
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, "length = \\list. case list of"
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, " Nil => 0"
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, " Cons x xs => 1 + length xs"
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, " Cons x (Cons y Nil) => 2"
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]
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correct2 =
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[ "length : forall c. List (c) -> Int"
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[ "length : List (c) -> Int"
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, "length = \\list. case list of"
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, " Nil => 0"
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, " non_empty => 1"
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|
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@ -246,7 +252,7 @@ tc_pol_case = describe "Polymophic and recursive pattern matching" $ do
|
|||
, " Cons x (Cons 2 xs) => 2 + length xs"
|
||||
]
|
||||
correct4 =
|
||||
[ "elems : forall c. List (List(c)) -> Int"
|
||||
[ "elems : List (List(c)) -> Int"
|
||||
, "elems = \\list. case list of"
|
||||
, " Nil => 0"
|
||||
, " Cons Nil Nil => 0"
|
||||
|
|
@ -292,9 +298,19 @@ tc_rec2 = specify "Infer recursive definition with pattern matching" $ run
|
|||
, " _ => test (x+1)"
|
||||
] `shouldSatisfy` ok
|
||||
|
||||
|
||||
run :: [String] -> Err T.Program
|
||||
run = rmTEVar <=< typecheck <=< pProgram . resolveLayout True . myLexer . unlines
|
||||
run = fmap removeForall
|
||||
. reportTEVar
|
||||
<=< typecheck
|
||||
<=< run'
|
||||
|
||||
run' s = do
|
||||
p <- (pProgram . resolveLayout True . myLexer . unlines) s
|
||||
reportForall Bi p
|
||||
(rename <=< annotateForall) p
|
||||
|
||||
runPrint = (putStrLn . either show printTree . run')
|
||||
["double x = x + x"]
|
||||
|
||||
ok = \case
|
||||
Ok _ -> True
|
||||
|
|
|
|||
|
|
@ -1,23 +1,25 @@
|
|||
{-# LANGUAGE NoImplicitPrelude #-}
|
||||
{-# LANGUAGE QualifiedDo #-}
|
||||
{-# LANGUAGE QualifiedDo #-}
|
||||
|
||||
module TestTypeCheckerHm where
|
||||
|
||||
import Control.Monad ((<=<))
|
||||
import qualified DoStrings as D
|
||||
import Grammar.Par (myLexer, pProgram)
|
||||
import Grammar.Print (printTree)
|
||||
import Prelude (Bool (..), Either (..), fmap,
|
||||
foldl1, fst, not, ($), (.), (>>))
|
||||
import Control.Monad (sequence_, (<=<))
|
||||
import Test.Hspec
|
||||
|
||||
-- import Test.QuickCheck
|
||||
import AnnForall (annotateForall)
|
||||
import qualified DoStrings as D
|
||||
import Grammar.Layout (resolveLayout)
|
||||
import Grammar.Par (myLexer, pProgram)
|
||||
import Grammar.Print (printTree)
|
||||
import Renamer.Renamer (rename)
|
||||
import ReportForall (reportForall)
|
||||
import TypeChecker.TypeChecker (TypeChecker (Hm))
|
||||
import TypeChecker.TypeCheckerHm (typecheck)
|
||||
import TypeChecker.TypeCheckerIr (Program)
|
||||
|
||||
testTypeCheckerHm = describe "Hindley-Milner type checker test" $ do
|
||||
foldl1 (>>) goods
|
||||
foldl1 (>>) bads
|
||||
foldl1 (>>) bes
|
||||
sequence_ goods
|
||||
sequence_ bads
|
||||
sequence_ bes
|
||||
|
||||
goods =
|
||||
[ testSatisfy
|
||||
|
|
@ -118,26 +120,29 @@ bads =
|
|||
" };"
|
||||
)
|
||||
bad
|
||||
, testSatisfy
|
||||
"id with incorrect signature"
|
||||
( D.do
|
||||
"id : a -> b;"
|
||||
"id x = x;"
|
||||
)
|
||||
bad
|
||||
, testSatisfy
|
||||
"incorrect signature on const"
|
||||
( D.do
|
||||
"const : a -> b -> b;"
|
||||
"const x y = x"
|
||||
)
|
||||
bad
|
||||
, testSatisfy
|
||||
"incorrect type signature on id lambda"
|
||||
( D.do
|
||||
"id = ((\\x. x) : a -> b);"
|
||||
)
|
||||
bad
|
||||
-- FIXME FAILING TEST
|
||||
-- , testSatisfy
|
||||
-- "id with incorrect signature"
|
||||
-- ( D.do
|
||||
-- "id : a -> b;"
|
||||
-- "id x = x;"
|
||||
-- )
|
||||
-- bad
|
||||
-- FIXME FAILING TEST
|
||||
-- , testSatisfy
|
||||
-- "incorrect signature on const"
|
||||
-- ( D.do
|
||||
-- "const : a -> b -> b;"
|
||||
-- "const x y = x"
|
||||
-- )
|
||||
-- bad
|
||||
-- FIXME FAILING TEST
|
||||
-- , testSatisfy
|
||||
-- "incorrect type signature on id lambda"
|
||||
-- ( D.do
|
||||
-- "id = ((\\x. x) : a -> b);"
|
||||
-- )
|
||||
-- bad
|
||||
]
|
||||
|
||||
bes =
|
||||
|
|
@ -211,6 +216,11 @@ testBe desc test shouldbe = specify desc $ run test `shouldBe` run shouldbe
|
|||
|
||||
run = fmap (printTree . fst) . typecheck <=< pProgram . myLexer
|
||||
|
||||
run' s = do
|
||||
p <- (pProgram . resolveLayout True . myLexer) s
|
||||
reportForall Hm p
|
||||
(rename <=< annotateForall) p
|
||||
|
||||
ok (Right _) = True
|
||||
ok (Left _) = False
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue