{-# LANGUAGE GADTs #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE ViewPatterns #-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
module Ormolu.Parser
( parseModule,
manualExts,
)
where
import Control.Exception
import Control.Monad
import Control.Monad.Except (ExceptT (..), runExceptT)
import Control.Monad.IO.Class
import Data.Char (isSpace)
import Data.Functor
import Data.Generics hiding (orElse)
import Data.List qualified as L
import Data.List.NonEmpty qualified as NE
import Data.Text (Text)
import GHC.Builtin.Names (mAIN_NAME)
import GHC.Data.Bag (bagToList)
import GHC.Data.EnumSet qualified as EnumSet
import GHC.Data.FastString qualified as GHC
import GHC.Data.Maybe (orElse)
import GHC.Data.StringBuffer (StringBuffer)
import GHC.Driver.Config.Parser (initParserOpts)
import GHC.Driver.Errors.Types qualified as GHC
import GHC.Driver.Session as GHC
import GHC.DynFlags (baseDynFlags)
import GHC.Hs hiding (UnicodeSyntax)
import GHC.LanguageExtensions.Type (Extension (..))
import GHC.Parser qualified as GHC
import GHC.Parser.Annotation qualified as GHC
import GHC.Parser.Header qualified as GHC
import GHC.Parser.Lexer qualified as GHC
import GHC.Types.Error qualified as GHC
import GHC.Types.SourceError qualified as GHC
import GHC.Types.SrcLoc
import GHC.Utils.Error
import GHC.Utils.Exception (ExceptionMonad)
import GHC.Utils.Panic qualified as GHC
import Ormolu.Config
import Ormolu.Exception
import Ormolu.Fixity hiding (packageFixityMap)
import Ormolu.Fixity.Imports (applyModuleReexports, extractFixityImports)
import Ormolu.Imports (normalizeImports)
import Ormolu.Parser.CommentStream
import Ormolu.Parser.Result
import Ormolu.Processing.Common
import Ormolu.Processing.Cpp (eraseCppLines)
import Ormolu.Processing.Preprocess
import Ormolu.Utils (incSpanLine, showOutputable, textToStringBuffer)
parseModule ::
(MonadIO m) =>
Config RegionDeltas ->
PackageFixityMap ->
FilePath ->
Text ->
m
( GHC.DriverMessages,
Either (SrcSpan, String) [SourceSnippet]
)
parseModule :: forall (m :: * -> *).
MonadIO m =>
Config RegionDeltas
-> PackageFixityMap
-> String
-> Text
-> m (DriverMessages, Either (SrcSpan, String) [SourceSnippet])
parseModule config :: Config RegionDeltas
config@Config {Bool
[DynOption]
Set PackageName
ColorMode
ModuleReexports
FixityOverrides
RegionDeltas
SourceType
cfgDynOptions :: [DynOption]
cfgFixityOverrides :: FixityOverrides
cfgModuleReexports :: ModuleReexports
cfgDependencies :: Set PackageName
cfgUnsafe :: Bool
cfgDebug :: Bool
cfgCheckIdempotence :: Bool
cfgSourceType :: SourceType
cfgColorMode :: ColorMode
cfgRegion :: RegionDeltas
cfgDynOptions :: forall region. Config region -> [DynOption]
cfgFixityOverrides :: forall region. Config region -> FixityOverrides
cfgModuleReexports :: forall region. Config region -> ModuleReexports
cfgDependencies :: forall region. Config region -> Set PackageName
cfgUnsafe :: forall region. Config region -> Bool
cfgDebug :: forall region. Config region -> Bool
cfgCheckIdempotence :: forall region. Config region -> Bool
cfgSourceType :: forall region. Config region -> SourceType
cfgColorMode :: forall region. Config region -> ColorMode
cfgRegion :: forall region. Config region -> region
..} PackageFixityMap
packageFixityMap String
path Text
rawInput = IO (DriverMessages, Either (SrcSpan, String) [SourceSnippet])
-> m (DriverMessages, Either (SrcSpan, String) [SourceSnippet])
forall a. IO a -> m a
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO (DriverMessages, Either (SrcSpan, String) [SourceSnippet])
-> m (DriverMessages, Either (SrcSpan, String) [SourceSnippet]))
-> IO (DriverMessages, Either (SrcSpan, String) [SourceSnippet])
-> m (DriverMessages, Either (SrcSpan, String) [SourceSnippet])
forall a b. (a -> b) -> a -> b
$ do
let baseFlags :: DynFlags
baseFlags =
GeneralFlag -> DynFlags -> DynFlags
GHC.setGeneralFlag'
GeneralFlag
GHC.Opt_Haddock
(DynFlags -> DynFlags
setDefaultExts DynFlags
baseDynFlags)
extraOpts :: [Located String]
extraOpts = DynOption -> Located String
dynOptionToLocatedStr (DynOption -> Located String) -> [DynOption] -> [Located String]
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> [DynOption]
cfgDynOptions
rawInputStringBuffer :: StringBuffer
rawInputStringBuffer = Text -> StringBuffer
textToStringBuffer (Text -> Text
eraseCppLines Text
rawInput)
beginningLoc :: SrcSpan
beginningLoc =
SrcLoc -> SrcLoc -> SrcSpan
mkSrcSpan
(FastString -> Int -> Int -> SrcLoc
mkSrcLoc (String -> FastString
GHC.mkFastString String
path) Int
1 Int
1)
(FastString -> Int -> Int -> SrcLoc
mkSrcLoc (String -> FastString
GHC.mkFastString String
path) Int
1 Int
1)
(DriverMessages
warnings, DynFlags
dynFlags) <-
DynFlags
-> [Located String]
-> String
-> StringBuffer
-> IO (Either String (DriverMessages, DynFlags))
parsePragmasIntoDynFlags DynFlags
baseFlags [Located String]
extraOpts String
path StringBuffer
rawInputStringBuffer IO (Either String (DriverMessages, DynFlags))
-> (Either String (DriverMessages, DynFlags)
-> IO (DriverMessages, DynFlags))
-> IO (DriverMessages, DynFlags)
forall a b. IO a -> (a -> IO b) -> IO b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= \case
Right (DriverMessages, DynFlags)
res -> (DriverMessages, DynFlags) -> IO (DriverMessages, DynFlags)
forall a. a -> IO a
forall (f :: * -> *) a. Applicative f => a -> f a
pure (DriverMessages, DynFlags)
res
Left String
err -> OrmoluException -> IO (DriverMessages, DynFlags)
forall e a. Exception e => e -> IO a
throwIO (SrcSpan -> String -> OrmoluException
OrmoluParsingFailed SrcSpan
beginningLoc String
err)
let cppEnabled :: Bool
cppEnabled = Extension -> EnumSet Extension -> Bool
forall a. Enum a => a -> EnumSet a -> Bool
EnumSet.member Extension
Cpp (DynFlags -> EnumSet Extension
GHC.extensionFlags DynFlags
dynFlags)
implicitPrelude :: Bool
implicitPrelude = Extension -> EnumSet Extension -> Bool
forall a. Enum a => a -> EnumSet a -> Bool
EnumSet.member Extension
ImplicitPrelude (DynFlags -> EnumSet Extension
GHC.extensionFlags DynFlags
dynFlags)
[FixityImport]
fixityImports <-
DynFlags
-> Bool
-> String
-> StringBuffer
-> IO (Either String [LImportDecl GhcPs])
parseImports DynFlags
dynFlags Bool
implicitPrelude String
path StringBuffer
rawInputStringBuffer IO (Either String [GenLocated SrcSpanAnnA (ImportDecl GhcPs)])
-> (Either String [GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
-> IO [FixityImport])
-> IO [FixityImport]
forall a b. IO a -> (a -> IO b) -> IO b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= \case
Right [GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
res ->
[FixityImport] -> IO [FixityImport]
forall a. a -> IO a
forall (f :: * -> *) a. Applicative f => a -> f a
pure (ModuleReexports -> [FixityImport] -> [FixityImport]
applyModuleReexports ModuleReexports
cfgModuleReexports ([LImportDecl GhcPs] -> [FixityImport]
extractFixityImports [LImportDecl GhcPs]
[GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
res))
Left String
err ->
OrmoluException -> IO [FixityImport]
forall e a. Exception e => e -> IO a
throwIO (SrcSpan -> String -> OrmoluException
OrmoluParsingFailed SrcSpan
beginningLoc String
err)
let modFixityMap :: ModuleFixityMap
modFixityMap =
FixityOverrides -> ModuleFixityMap -> ModuleFixityMap
applyFixityOverrides
FixityOverrides
cfgFixityOverrides
(PackageFixityMap -> [FixityImport] -> ModuleFixityMap
moduleFixityMap PackageFixityMap
packageFixityMap [FixityImport]
fixityImports)
Either (SrcSpan, String) [SourceSnippet]
snippets <- ExceptT (SrcSpan, String) IO [SourceSnippet]
-> IO (Either (SrcSpan, String) [SourceSnippet])
forall e (m :: * -> *) a. ExceptT e m a -> m (Either e a)
runExceptT (ExceptT (SrcSpan, String) IO [SourceSnippet]
-> IO (Either (SrcSpan, String) [SourceSnippet]))
-> ((Either Text RegionDeltas
-> ExceptT (SrcSpan, String) IO SourceSnippet)
-> ExceptT (SrcSpan, String) IO [SourceSnippet])
-> (Either Text RegionDeltas
-> ExceptT (SrcSpan, String) IO SourceSnippet)
-> IO (Either (SrcSpan, String) [SourceSnippet])
forall b c a. (b -> c) -> (a -> b) -> a -> c
. [Either Text RegionDeltas]
-> (Either Text RegionDeltas
-> ExceptT (SrcSpan, String) IO SourceSnippet)
-> ExceptT (SrcSpan, String) IO [SourceSnippet]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
t a -> (a -> m b) -> m (t b)
forM (Bool -> RegionDeltas -> Text -> [Either Text RegionDeltas]
preprocess Bool
cppEnabled RegionDeltas
cfgRegion Text
rawInput) ((Either Text RegionDeltas
-> ExceptT (SrcSpan, String) IO SourceSnippet)
-> IO (Either (SrcSpan, String) [SourceSnippet]))
-> (Either Text RegionDeltas
-> ExceptT (SrcSpan, String) IO SourceSnippet)
-> IO (Either (SrcSpan, String) [SourceSnippet])
forall a b. (a -> b) -> a -> b
$ \case
Right RegionDeltas
region ->
(ParseResult -> SourceSnippet)
-> ExceptT (SrcSpan, String) IO ParseResult
-> ExceptT (SrcSpan, String) IO SourceSnippet
forall a b.
(a -> b)
-> ExceptT (SrcSpan, String) IO a -> ExceptT (SrcSpan, String) IO b
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap ParseResult -> SourceSnippet
ParsedSnippet (ExceptT (SrcSpan, String) IO ParseResult
-> ExceptT (SrcSpan, String) IO SourceSnippet)
-> (IO (Either (SrcSpan, String) ParseResult)
-> ExceptT (SrcSpan, String) IO ParseResult)
-> IO (Either (SrcSpan, String) ParseResult)
-> ExceptT (SrcSpan, String) IO SourceSnippet
forall b c a. (b -> c) -> (a -> b) -> a -> c
. IO (Either (SrcSpan, String) ParseResult)
-> ExceptT (SrcSpan, String) IO ParseResult
forall e (m :: * -> *) a. m (Either e a) -> ExceptT e m a
ExceptT (IO (Either (SrcSpan, String) ParseResult)
-> ExceptT (SrcSpan, String) IO SourceSnippet)
-> IO (Either (SrcSpan, String) ParseResult)
-> ExceptT (SrcSpan, String) IO SourceSnippet
forall a b. (a -> b) -> a -> b
$
Config RegionDeltas
-> ModuleFixityMap
-> DynFlags
-> String
-> Text
-> IO (Either (SrcSpan, String) ParseResult)
forall (m :: * -> *).
MonadIO m =>
Config RegionDeltas
-> ModuleFixityMap
-> DynFlags
-> String
-> Text
-> m (Either (SrcSpan, String) ParseResult)
parseModuleSnippet (Config RegionDeltas
config Config RegionDeltas -> RegionDeltas -> Config RegionDeltas
forall (f :: * -> *) a b. Functor f => f a -> b -> f b
$> RegionDeltas
region) ModuleFixityMap
modFixityMap DynFlags
dynFlags String
path Text
rawInput
Left Text
raw -> SourceSnippet -> ExceptT (SrcSpan, String) IO SourceSnippet
forall a. a -> ExceptT (SrcSpan, String) IO a
forall (f :: * -> *) a. Applicative f => a -> f a
pure (SourceSnippet -> ExceptT (SrcSpan, String) IO SourceSnippet)
-> SourceSnippet -> ExceptT (SrcSpan, String) IO SourceSnippet
forall a b. (a -> b) -> a -> b
$ Text -> SourceSnippet
RawSnippet Text
raw
(DriverMessages, Either (SrcSpan, String) [SourceSnippet])
-> IO (DriverMessages, Either (SrcSpan, String) [SourceSnippet])
forall a. a -> IO a
forall (f :: * -> *) a. Applicative f => a -> f a
pure (DriverMessages
warnings, Either (SrcSpan, String) [SourceSnippet]
snippets)
parseModuleSnippet ::
(MonadIO m) =>
Config RegionDeltas ->
ModuleFixityMap ->
DynFlags ->
FilePath ->
Text ->
m (Either (SrcSpan, String) ParseResult)
parseModuleSnippet :: forall (m :: * -> *).
MonadIO m =>
Config RegionDeltas
-> ModuleFixityMap
-> DynFlags
-> String
-> Text
-> m (Either (SrcSpan, String) ParseResult)
parseModuleSnippet Config {Bool
[DynOption]
Set PackageName
ColorMode
ModuleReexports
FixityOverrides
RegionDeltas
SourceType
cfgDynOptions :: forall region. Config region -> [DynOption]
cfgFixityOverrides :: forall region. Config region -> FixityOverrides
cfgModuleReexports :: forall region. Config region -> ModuleReexports
cfgDependencies :: forall region. Config region -> Set PackageName
cfgUnsafe :: forall region. Config region -> Bool
cfgDebug :: forall region. Config region -> Bool
cfgCheckIdempotence :: forall region. Config region -> Bool
cfgSourceType :: forall region. Config region -> SourceType
cfgColorMode :: forall region. Config region -> ColorMode
cfgRegion :: forall region. Config region -> region
cfgDynOptions :: [DynOption]
cfgFixityOverrides :: FixityOverrides
cfgModuleReexports :: ModuleReexports
cfgDependencies :: Set PackageName
cfgUnsafe :: Bool
cfgDebug :: Bool
cfgCheckIdempotence :: Bool
cfgSourceType :: SourceType
cfgColorMode :: ColorMode
cfgRegion :: RegionDeltas
..} ModuleFixityMap
modFixityMap DynFlags
dynFlags String
path Text
rawInput = IO (Either (SrcSpan, String) ParseResult)
-> m (Either (SrcSpan, String) ParseResult)
forall a. IO a -> m a
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO (Either (SrcSpan, String) ParseResult)
-> m (Either (SrcSpan, String) ParseResult))
-> IO (Either (SrcSpan, String) ParseResult)
-> m (Either (SrcSpan, String) ParseResult)
forall a b. (a -> b) -> a -> b
$ do
let (Text
input, Int
indent) = Text -> (Text, Int)
removeIndentation (Text -> (Text, Int)) -> (Text -> Text) -> Text -> (Text, Int)
forall b c a. (b -> c) -> (a -> b) -> a -> c
. RegionDeltas -> Text -> Text
linesInRegion RegionDeltas
cfgRegion (Text -> (Text, Int)) -> Text -> (Text, Int)
forall a b. (a -> b) -> a -> b
$ Text
rawInput
let pStateErrors :: PState -> Maybe (SrcSpan, String)
pStateErrors PState
pstate =
let errs :: [MsgEnvelope PsMessage]
errs = Bag (MsgEnvelope PsMessage) -> [MsgEnvelope PsMessage]
forall a. Bag a -> [a]
bagToList (Bag (MsgEnvelope PsMessage) -> [MsgEnvelope PsMessage])
-> (Messages PsMessage -> Bag (MsgEnvelope PsMessage))
-> Messages PsMessage
-> [MsgEnvelope PsMessage]
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Messages PsMessage -> Bag (MsgEnvelope PsMessage)
forall e. Messages e -> Bag (MsgEnvelope e)
GHC.getMessages (Messages PsMessage -> [MsgEnvelope PsMessage])
-> Messages PsMessage -> [MsgEnvelope PsMessage]
forall a b. (a -> b) -> a -> b
$ PState -> Messages PsMessage
GHC.getPsErrorMessages PState
pstate
fixupErrSpan :: SrcSpan -> SrcSpan
fixupErrSpan = Int -> SrcSpan -> SrcSpan
incSpanLine (RegionDeltas -> Int
regionPrefixLength RegionDeltas
cfgRegion)
rateSeverity :: Severity -> Int
rateSeverity = \case
Severity
SevError -> Int
1 :: Int
Severity
SevWarning -> Int
2
Severity
SevIgnore -> Int
3
showErr :: MsgEnvelope a -> String
showErr (MsgEnvelope a -> a
forall e. MsgEnvelope e -> e
errMsgDiagnostic -> a
err) = String
codeMsg String -> String -> String
forall a. Semigroup a => a -> a -> a
<> String
msg
where
codeMsg :: String
codeMsg = case a -> Maybe DiagnosticCode
forall a. Diagnostic a => a -> Maybe DiagnosticCode
diagnosticCode a
err of
Just DiagnosticCode
code -> String
"[" String -> String -> String
forall a. Semigroup a => a -> a -> a
<> DiagnosticCode -> String
forall o. Outputable o => o -> String
showOutputable DiagnosticCode
code String -> String -> String
forall a. Semigroup a => a -> a -> a
<> String
"] "
Maybe DiagnosticCode
Nothing -> String
""
msg :: String
msg =
SDoc -> String
forall o. Outputable o => o -> String
showOutputable
(SDoc -> String) -> (a -> SDoc) -> a -> String
forall b c a. (b -> c) -> (a -> b) -> a -> c
. DecoratedSDoc -> SDoc
formatBulleted
(DecoratedSDoc -> SDoc) -> (a -> DecoratedSDoc) -> a -> SDoc
forall b c a. (b -> c) -> (a -> b) -> a -> c
. DiagnosticOpts a -> a -> DecoratedSDoc
forall a. Diagnostic a => DiagnosticOpts a -> a -> DecoratedSDoc
diagnosticMessage NoDiagnosticOpts
DiagnosticOpts a
GHC.NoDiagnosticOpts
(a -> String) -> a -> String
forall a b. (a -> b) -> a -> b
$ a
err
in case (MsgEnvelope PsMessage -> Int)
-> [MsgEnvelope PsMessage] -> [MsgEnvelope PsMessage]
forall b a. Ord b => (a -> b) -> [a] -> [a]
L.sortOn (Severity -> Int
rateSeverity (Severity -> Int)
-> (MsgEnvelope PsMessage -> Severity)
-> MsgEnvelope PsMessage
-> Int
forall b c a. (b -> c) -> (a -> b) -> a -> c
. MsgEnvelope PsMessage -> Severity
forall e. MsgEnvelope e -> Severity
errMsgSeverity) [MsgEnvelope PsMessage]
errs of
[] -> Maybe (SrcSpan, String)
forall a. Maybe a
Nothing
MsgEnvelope PsMessage
err : [MsgEnvelope PsMessage]
_ ->
(SrcSpan, String) -> Maybe (SrcSpan, String)
forall a. a -> Maybe a
Just (SrcSpan -> SrcSpan
fixupErrSpan (MsgEnvelope PsMessage -> SrcSpan
forall e. MsgEnvelope e -> SrcSpan
errMsgSpan MsgEnvelope PsMessage
err), MsgEnvelope PsMessage -> String
forall {a}.
(DiagnosticOpts a ~ NoDiagnosticOpts, Diagnostic a) =>
MsgEnvelope a -> String
showErr MsgEnvelope PsMessage
err)
parser :: P (Located (HsModule GhcPs))
parser = case SourceType
cfgSourceType of
SourceType
ModuleSource -> P (Located (HsModule GhcPs))
GHC.parseModule
SourceType
SignatureSource -> P (Located (HsModule GhcPs))
GHC.parseSignature
r :: Either (SrcSpan, String) ParseResult
r = case P (Located (HsModule GhcPs))
-> DynFlags
-> String
-> Text
-> ParseResult (Located (HsModule GhcPs))
forall a. P a -> DynFlags -> String -> Text -> ParseResult a
runParser P (Located (HsModule GhcPs))
parser DynFlags
dynFlags String
path Text
input of
GHC.PFailed PState
pstate ->
case PState -> Maybe (SrcSpan, String)
pStateErrors PState
pstate of
Just (SrcSpan, String)
err -> (SrcSpan, String) -> Either (SrcSpan, String) ParseResult
forall a b. a -> Either a b
Left (SrcSpan, String)
err
Maybe (SrcSpan, String)
Nothing -> String -> Either (SrcSpan, String) ParseResult
forall a. HasCallStack => String -> a
error String
"PFailed does not have an error"
GHC.POk PState
pstate (L SrcSpan
_ (HsModule GhcPs -> HsModule GhcPs
normalizeModule -> HsModule GhcPs
hsModule)) ->
case PState -> Maybe (SrcSpan, String)
pStateErrors PState
pstate of
Just (SrcSpan, String)
err -> (SrcSpan, String) -> Either (SrcSpan, String) ParseResult
forall a b. a -> Either a b
Left (SrcSpan, String)
err
Maybe (SrcSpan, String)
Nothing ->
let (Maybe LComment
stackHeader, [([LComment], Pragma)]
pragmas, CommentStream
comments) =
Text
-> HsModule GhcPs
-> (Maybe LComment, [([LComment], Pragma)], CommentStream)
mkCommentStream Text
input HsModule GhcPs
hsModule
in ParseResult -> Either (SrcSpan, String) ParseResult
forall a b. b -> Either a b
Right
ParseResult
{ prParsedSource :: HsModule GhcPs
prParsedSource = HsModule GhcPs
hsModule,
prSourceType :: SourceType
prSourceType = SourceType
cfgSourceType,
prStackHeader :: Maybe LComment
prStackHeader = Maybe LComment
stackHeader,
prPragmas :: [([LComment], Pragma)]
prPragmas = [([LComment], Pragma)]
pragmas,
prCommentStream :: CommentStream
prCommentStream = CommentStream
comments,
prExtensions :: EnumSet Extension
prExtensions = DynFlags -> EnumSet Extension
GHC.extensionFlags DynFlags
dynFlags,
prModuleFixityMap :: ModuleFixityMap
prModuleFixityMap = ModuleFixityMap
modFixityMap,
prIndent :: Int
prIndent = Int
indent
}
Either (SrcSpan, String) ParseResult
-> IO (Either (SrcSpan, String) ParseResult)
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Either (SrcSpan, String) ParseResult
r
normalizeModule :: HsModule GhcPs -> HsModule GhcPs
normalizeModule :: HsModule GhcPs -> HsModule GhcPs
normalizeModule HsModule GhcPs
hsmod =
(forall a. Data a => a -> a) -> forall a. Data a => a -> a
everywhere
((GenLocated SrcSpanAnnA (HsType GhcPs)
-> GenLocated SrcSpanAnnA (HsType GhcPs))
-> a -> a
forall a b. (Typeable a, Typeable b) => (b -> b) -> a -> a
mkT GenLocated SrcSpanAnnA (HsType GhcPs)
-> GenLocated SrcSpanAnnA (HsType GhcPs)
dropBlankTypeHaddocks (a -> a) -> (ConDecl GhcPs -> ConDecl GhcPs) -> a -> a
forall a b.
(Typeable a, Typeable b) =>
(a -> a) -> (b -> b) -> a -> a
`extT` ConDecl GhcPs -> ConDecl GhcPs
dropBlankDataDeclHaddocks (a -> a)
-> (GenLocated SrcSpanAnnC [GenLocated SrcSpanAnnA (HsType GhcPs)]
-> GenLocated SrcSpanAnnC [GenLocated SrcSpanAnnA (HsType GhcPs)])
-> a
-> a
forall a b.
(Typeable a, Typeable b) =>
(a -> a) -> (b -> b) -> a -> a
`extT` LHsContext GhcPs -> LHsContext GhcPs
GenLocated SrcSpanAnnC [GenLocated SrcSpanAnnA (HsType GhcPs)]
-> GenLocated SrcSpanAnnC [GenLocated SrcSpanAnnA (HsType GhcPs)]
patchContext)
HsModule GhcPs
hsmod
{ hsmodImports =
normalizeImports (hsmodImports hsmod),
hsmodDecls =
filter (not . isBlankDocD . unLoc) (hsmodDecls hsmod),
hsmodExt =
(hsmodExt hsmod)
{ hsmodHaddockModHeader =
mfilter (not . isBlankDocString) (hsmodHaddockModHeader (hsmodExt hsmod))
},
hsmodExports =
(fmap . fmap) (filter (not . isBlankDocIE . unLoc)) (hsmodExports hsmod)
}
where
isBlankDocString :: GenLocated l (WithHsDocIdentifiers HsDocString pass) -> Bool
isBlankDocString = (Char -> Bool) -> String -> Bool
forall (t :: * -> *) a. Foldable t => (a -> Bool) -> t a -> Bool
all Char -> Bool
isSpace (String -> Bool)
-> (GenLocated l (WithHsDocIdentifiers HsDocString pass) -> String)
-> GenLocated l (WithHsDocIdentifiers HsDocString pass)
-> Bool
forall b c a. (b -> c) -> (a -> b) -> a -> c
. HsDocString -> String
renderHsDocString (HsDocString -> String)
-> (GenLocated l (WithHsDocIdentifiers HsDocString pass)
-> HsDocString)
-> GenLocated l (WithHsDocIdentifiers HsDocString pass)
-> String
forall b c a. (b -> c) -> (a -> b) -> a -> c
. WithHsDocIdentifiers HsDocString pass -> HsDocString
forall a pass. WithHsDocIdentifiers a pass -> a
hsDocString (WithHsDocIdentifiers HsDocString pass -> HsDocString)
-> (GenLocated l (WithHsDocIdentifiers HsDocString pass)
-> WithHsDocIdentifiers HsDocString pass)
-> GenLocated l (WithHsDocIdentifiers HsDocString pass)
-> HsDocString
forall b c a. (b -> c) -> (a -> b) -> a -> c
. GenLocated l (WithHsDocIdentifiers HsDocString pass)
-> WithHsDocIdentifiers HsDocString pass
forall l e. GenLocated l e -> e
unLoc
isBlankDocD :: HsDecl pass -> Bool
isBlankDocD = \case
DocD XDocD pass
_ DocDecl pass
s -> GenLocated SrcSpan (WithHsDocIdentifiers HsDocString pass) -> Bool
forall {l} {pass}.
GenLocated l (WithHsDocIdentifiers HsDocString pass) -> Bool
isBlankDocString (GenLocated SrcSpan (WithHsDocIdentifiers HsDocString pass)
-> Bool)
-> GenLocated SrcSpan (WithHsDocIdentifiers HsDocString pass)
-> Bool
forall a b. (a -> b) -> a -> b
$ DocDecl pass
-> GenLocated SrcSpan (WithHsDocIdentifiers HsDocString pass)
forall pass. DocDecl pass -> LHsDoc pass
docDeclDoc DocDecl pass
s
HsDecl pass
_ -> Bool
False
isBlankDocIE :: IE pass -> Bool
isBlankDocIE = \case
IEGroup XIEGroup pass
_ Int
_ LHsDoc pass
s -> LHsDoc pass -> Bool
forall {l} {pass}.
GenLocated l (WithHsDocIdentifiers HsDocString pass) -> Bool
isBlankDocString LHsDoc pass
s
IEDoc XIEDoc pass
_ LHsDoc pass
s -> LHsDoc pass -> Bool
forall {l} {pass}.
GenLocated l (WithHsDocIdentifiers HsDocString pass) -> Bool
isBlankDocString LHsDoc pass
s
IE pass
_ -> Bool
False
dropBlankTypeHaddocks :: LHsType GhcPs -> LHsType GhcPs
dropBlankTypeHaddocks = \case
L SrcSpanAnnA
_ (HsDocTy XDocTy GhcPs
_ LHsType GhcPs
ty LHsDoc GhcPs
s) :: LHsType GhcPs
| LHsDoc GhcPs -> Bool
forall {l} {pass}.
GenLocated l (WithHsDocIdentifiers HsDocString pass) -> Bool
isBlankDocString LHsDoc GhcPs
s -> LHsType GhcPs
ty
LHsType GhcPs
a -> LHsType GhcPs
a
dropBlankDataDeclHaddocks :: ConDecl GhcPs -> ConDecl GhcPs
dropBlankDataDeclHaddocks = \case
ConDeclGADT {con_doc :: forall pass. ConDecl pass -> Maybe (LHsDoc pass)
con_doc = Just LHsDoc GhcPs
s, Maybe (LHsContext GhcPs)
NonEmpty (LIdP GhcPs)
XConDeclGADT GhcPs
LHsUniToken "::" "\8759" GhcPs
LHsType GhcPs
XRec GhcPs (HsOuterSigTyVarBndrs GhcPs)
HsConDeclGADTDetails GhcPs
con_g_ext :: XConDeclGADT GhcPs
con_names :: NonEmpty (LIdP GhcPs)
con_dcolon :: LHsUniToken "::" "\8759" GhcPs
con_bndrs :: XRec GhcPs (HsOuterSigTyVarBndrs GhcPs)
con_mb_cxt :: Maybe (LHsContext GhcPs)
con_g_args :: HsConDeclGADTDetails GhcPs
con_res_ty :: LHsType GhcPs
con_g_ext :: forall pass. ConDecl pass -> XConDeclGADT pass
con_names :: forall pass. ConDecl pass -> NonEmpty (LIdP pass)
con_dcolon :: forall pass. ConDecl pass -> LHsUniToken "::" "\8759" pass
con_bndrs :: forall pass. ConDecl pass -> XRec pass (HsOuterSigTyVarBndrs pass)
con_mb_cxt :: forall pass. ConDecl pass -> Maybe (LHsContext pass)
con_g_args :: forall pass. ConDecl pass -> HsConDeclGADTDetails pass
con_res_ty :: forall pass. ConDecl pass -> LHsType pass
..} :: ConDecl GhcPs
| LHsDoc GhcPs -> Bool
forall {l} {pass}.
GenLocated l (WithHsDocIdentifiers HsDocString pass) -> Bool
isBlankDocString LHsDoc GhcPs
s -> ConDeclGADT {con_doc :: Maybe (LHsDoc GhcPs)
con_doc = Maybe (LHsDoc GhcPs)
forall a. Maybe a
Nothing, Maybe (LHsContext GhcPs)
NonEmpty (LIdP GhcPs)
XConDeclGADT GhcPs
LHsUniToken "::" "\8759" GhcPs
LHsType GhcPs
XRec GhcPs (HsOuterSigTyVarBndrs GhcPs)
HsConDeclGADTDetails GhcPs
con_g_ext :: XConDeclGADT GhcPs
con_names :: NonEmpty (LIdP GhcPs)
con_dcolon :: LHsUniToken "::" "\8759" GhcPs
con_bndrs :: XRec GhcPs (HsOuterSigTyVarBndrs GhcPs)
con_mb_cxt :: Maybe (LHsContext GhcPs)
con_g_args :: HsConDeclGADTDetails GhcPs
con_res_ty :: LHsType GhcPs
con_g_ext :: XConDeclGADT GhcPs
con_names :: NonEmpty (LIdP GhcPs)
con_dcolon :: LHsUniToken "::" "\8759" GhcPs
con_bndrs :: XRec GhcPs (HsOuterSigTyVarBndrs GhcPs)
con_mb_cxt :: Maybe (LHsContext GhcPs)
con_g_args :: HsConDeclGADTDetails GhcPs
con_res_ty :: LHsType GhcPs
..}
ConDeclH98 {con_doc :: forall pass. ConDecl pass -> Maybe (LHsDoc pass)
con_doc = Just LHsDoc GhcPs
s, Bool
[LHsTyVarBndr Specificity GhcPs]
Maybe (LHsContext GhcPs)
XConDeclH98 GhcPs
LIdP GhcPs
HsConDeclH98Details GhcPs
con_mb_cxt :: forall pass. ConDecl pass -> Maybe (LHsContext pass)
con_ext :: XConDeclH98 GhcPs
con_name :: LIdP GhcPs
con_forall :: Bool
con_ex_tvs :: [LHsTyVarBndr Specificity GhcPs]
con_mb_cxt :: Maybe (LHsContext GhcPs)
con_args :: HsConDeclH98Details GhcPs
con_ext :: forall pass. ConDecl pass -> XConDeclH98 pass
con_name :: forall pass. ConDecl pass -> LIdP pass
con_forall :: forall pass. ConDecl pass -> Bool
con_ex_tvs :: forall pass. ConDecl pass -> [LHsTyVarBndr Specificity pass]
con_args :: forall pass. ConDecl pass -> HsConDeclH98Details pass
..} :: ConDecl GhcPs
| LHsDoc GhcPs -> Bool
forall {l} {pass}.
GenLocated l (WithHsDocIdentifiers HsDocString pass) -> Bool
isBlankDocString LHsDoc GhcPs
s -> ConDeclH98 {con_doc :: Maybe (LHsDoc GhcPs)
con_doc = Maybe (LHsDoc GhcPs)
forall a. Maybe a
Nothing, Bool
[LHsTyVarBndr Specificity GhcPs]
Maybe (LHsContext GhcPs)
XConDeclH98 GhcPs
LIdP GhcPs
HsConDeclH98Details GhcPs
con_mb_cxt :: Maybe (LHsContext GhcPs)
con_ext :: XConDeclH98 GhcPs
con_name :: LIdP GhcPs
con_forall :: Bool
con_ex_tvs :: [LHsTyVarBndr Specificity GhcPs]
con_mb_cxt :: Maybe (LHsContext GhcPs)
con_args :: HsConDeclH98Details GhcPs
con_ext :: XConDeclH98 GhcPs
con_name :: LIdP GhcPs
con_forall :: Bool
con_ex_tvs :: [LHsTyVarBndr Specificity GhcPs]
con_args :: HsConDeclH98Details GhcPs
..}
ConDecl GhcPs
a -> ConDecl GhcPs
a
patchContext :: LHsContext GhcPs -> LHsContext GhcPs
patchContext :: LHsContext GhcPs -> LHsContext GhcPs
patchContext = ([GenLocated SrcSpanAnnA (HsType GhcPs)]
-> [GenLocated SrcSpanAnnA (HsType GhcPs)])
-> GenLocated SrcSpanAnnC [GenLocated SrcSpanAnnA (HsType GhcPs)]
-> GenLocated SrcSpanAnnC [GenLocated SrcSpanAnnA (HsType GhcPs)]
forall a b.
(a -> b) -> GenLocated SrcSpanAnnC a -> GenLocated SrcSpanAnnC b
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap (([GenLocated SrcSpanAnnA (HsType GhcPs)]
-> [GenLocated SrcSpanAnnA (HsType GhcPs)])
-> GenLocated SrcSpanAnnC [GenLocated SrcSpanAnnA (HsType GhcPs)]
-> GenLocated SrcSpanAnnC [GenLocated SrcSpanAnnA (HsType GhcPs)])
-> ([GenLocated SrcSpanAnnA (HsType GhcPs)]
-> [GenLocated SrcSpanAnnA (HsType GhcPs)])
-> GenLocated SrcSpanAnnC [GenLocated SrcSpanAnnA (HsType GhcPs)]
-> GenLocated SrcSpanAnnC [GenLocated SrcSpanAnnA (HsType GhcPs)]
forall a b. (a -> b) -> a -> b
$ \case
[x :: GenLocated SrcSpanAnnA (HsType GhcPs)
x@(L SrcSpanAnnA
_ (HsParTy XParTy GhcPs
_ LHsType GhcPs
_))] -> [GenLocated SrcSpanAnnA (HsType GhcPs)
x]
[x :: GenLocated SrcSpanAnnA (HsType GhcPs)
x@(L SrcSpanAnnA
lx HsType GhcPs
_)] -> [SrcSpanAnnA
-> HsType GhcPs -> GenLocated SrcSpanAnnA (HsType GhcPs)
forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
lx (XParTy GhcPs -> LHsType GhcPs -> HsType GhcPs
forall pass. XParTy pass -> LHsType pass -> HsType pass
HsParTy XParTy GhcPs
EpAnn AnnParen
forall ann. EpAnn ann
EpAnnNotUsed LHsType GhcPs
GenLocated SrcSpanAnnA (HsType GhcPs)
x)]
[GenLocated SrcSpanAnnA (HsType GhcPs)]
xs -> [GenLocated SrcSpanAnnA (HsType GhcPs)]
xs
setDefaultExts :: DynFlags -> DynFlags
setDefaultExts :: DynFlags -> DynFlags
setDefaultExts DynFlags
flags = (DynFlags -> Extension -> DynFlags)
-> DynFlags -> [Extension] -> DynFlags
forall b a. (b -> a -> b) -> b -> [a] -> b
forall (t :: * -> *) b a.
Foldable t =>
(b -> a -> b) -> b -> t a -> b
L.foldl' DynFlags -> Extension -> DynFlags
xopt_set (DynFlags -> Maybe Language -> DynFlags
lang_set DynFlags
flags (Language -> Maybe Language
forall a. a -> Maybe a
Just Language
Haskell2010)) [Extension]
autoExts
where
autoExts :: [Extension]
autoExts = [Extension]
allExts [Extension] -> [Extension] -> [Extension]
forall a. Eq a => [a] -> [a] -> [a]
L.\\ [Extension]
manualExts
allExts :: [Extension]
allExts = [Extension
forall a. Bounded a => a
minBound .. Extension
forall a. Bounded a => a
maxBound]
manualExts :: [Extension]
manualExts :: [Extension]
manualExts =
[ Extension
Arrows,
Extension
Cpp,
Extension
BangPatterns,
Extension
PatternSynonyms,
Extension
RecursiveDo,
Extension
StaticPointers,
Extension
TransformListComp,
Extension
UnboxedTuples,
Extension
MagicHash,
Extension
AlternativeLayoutRule,
Extension
AlternativeLayoutRuleTransitional,
Extension
MonadComprehensions,
Extension
UnboxedSums,
Extension
UnicodeSyntax,
Extension
TemplateHaskell,
Extension
TemplateHaskellQuotes,
Extension
ImportQualifiedPost,
Extension
NegativeLiterals,
Extension
LexicalNegation,
Extension
LinearTypes,
Extension
OverloadedRecordDot,
Extension
OverloadedRecordUpdate,
Extension
OverloadedLabels,
Extension
ExtendedLiterals
]
runParser ::
GHC.P a ->
GHC.DynFlags ->
FilePath ->
Text ->
GHC.ParseResult a
runParser :: forall a. P a -> DynFlags -> String -> Text -> ParseResult a
runParser P a
parser DynFlags
flags String
filename Text
input = P a -> PState -> ParseResult a
forall a. P a -> PState -> ParseResult a
GHC.unP P a
parser PState
parseState
where
location :: RealSrcLoc
location = FastString -> Int -> Int -> RealSrcLoc
mkRealSrcLoc (String -> FastString
GHC.mkFastString String
filename) Int
1 Int
1
buffer :: StringBuffer
buffer = Text -> StringBuffer
textToStringBuffer Text
input
parseState :: PState
parseState = ParserOpts -> StringBuffer -> RealSrcLoc -> PState
GHC.initParserState (DynFlags -> ParserOpts
initParserOpts DynFlags
flags) StringBuffer
buffer RealSrcLoc
location
parsePragmasIntoDynFlags ::
DynFlags ->
[Located String] ->
FilePath ->
StringBuffer ->
IO (Either String (GHC.DriverMessages, DynFlags))
parsePragmasIntoDynFlags :: DynFlags
-> [Located String]
-> String
-> StringBuffer
-> IO (Either String (DriverMessages, DynFlags))
parsePragmasIntoDynFlags DynFlags
flags [Located String]
extraOpts String
filepath StringBuffer
input =
IO (Either String (DriverMessages, DynFlags))
-> IO (Either String (DriverMessages, DynFlags))
forall (m :: * -> *) a.
ExceptionMonad m =>
m (Either String a) -> m (Either String a)
catchGhcErrors (IO (Either String (DriverMessages, DynFlags))
-> IO (Either String (DriverMessages, DynFlags)))
-> IO (Either String (DriverMessages, DynFlags))
-> IO (Either String (DriverMessages, DynFlags))
forall a b. (a -> b) -> a -> b
$ do
let (Messages PsMessage
_warnings, [Located String]
fileOpts) =
ParserOpts
-> StringBuffer -> String -> (Messages PsMessage, [Located String])
GHC.getOptions
(DynFlags -> ParserOpts
initParserOpts DynFlags
flags)
StringBuffer
input
String
filepath
(DynFlags
flags', [Located String]
leftovers, DriverMessages
warnings) <-
DynFlags
-> [Located String]
-> IO (DynFlags, [Located String], DriverMessages)
forall (m :: * -> *).
MonadIO m =>
DynFlags
-> [Located String]
-> m (DynFlags, [Located String], DriverMessages)
parseDynamicFilePragma DynFlags
flags ([Located String]
extraOpts [Located String] -> [Located String] -> [Located String]
forall a. Semigroup a => a -> a -> a
<> [Located String]
fileOpts)
case [Located String] -> Maybe (NonEmpty (Located String))
forall a. [a] -> Maybe (NonEmpty a)
NE.nonEmpty [Located String]
leftovers of
Maybe (NonEmpty (Located String))
Nothing -> () -> IO ()
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return ()
Just NonEmpty (Located String)
unrecognizedOpts ->
OrmoluException -> IO ()
forall e a. Exception e => e -> IO a
throwIO (NonEmpty String -> OrmoluException
OrmoluUnrecognizedOpts (Located String -> String
forall l e. GenLocated l e -> e
unLoc (Located String -> String)
-> NonEmpty (Located String) -> NonEmpty String
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> NonEmpty (Located String)
unrecognizedOpts))
let flags'' :: DynFlags
flags'' = DynFlags
flags' DynFlags -> GeneralFlag -> DynFlags
`gopt_set` GeneralFlag
Opt_KeepRawTokenStream
Either String (DriverMessages, DynFlags)
-> IO (Either String (DriverMessages, DynFlags))
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return (Either String (DriverMessages, DynFlags)
-> IO (Either String (DriverMessages, DynFlags)))
-> Either String (DriverMessages, DynFlags)
-> IO (Either String (DriverMessages, DynFlags))
forall a b. (a -> b) -> a -> b
$ (DriverMessages, DynFlags)
-> Either String (DriverMessages, DynFlags)
forall a b. b -> Either a b
Right (DriverMessages
warnings, DynFlags
flags'')
parseImports ::
DynFlags ->
Bool ->
FilePath ->
StringBuffer ->
IO (Either String [LImportDecl GhcPs])
parseImports :: DynFlags
-> Bool
-> String
-> StringBuffer
-> IO (Either String [LImportDecl GhcPs])
parseImports DynFlags
flags Bool
implicitPrelude String
filepath StringBuffer
input =
case P (Located (HsModule GhcPs))
-> PState -> ParseResult (Located (HsModule GhcPs))
forall a. P a -> PState -> ParseResult a
GHC.unP P (Located (HsModule GhcPs))
GHC.parseHeader (ParserOpts -> StringBuffer -> RealSrcLoc -> PState
GHC.initParserState ParserOpts
popts StringBuffer
input RealSrcLoc
loc) of
GHC.PFailed PState
pst ->
Either String [LImportDecl GhcPs]
-> IO (Either String [LImportDecl GhcPs])
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return (Either String [LImportDecl GhcPs]
-> IO (Either String [LImportDecl GhcPs]))
-> Either String [LImportDecl GhcPs]
-> IO (Either String [LImportDecl GhcPs])
forall a b. (a -> b) -> a -> b
$ String -> Either String [GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
forall a b. a -> Either a b
Left (Messages PsMessage -> String
forall o. Outputable o => o -> String
showOutputable (PState -> Messages PsMessage
GHC.getPsErrorMessages PState
pst))
GHC.POk PState
pst Located (HsModule GhcPs)
rdr_module ->
Either String [LImportDecl GhcPs]
-> IO (Either String [LImportDecl GhcPs])
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return (Either String [LImportDecl GhcPs]
-> IO (Either String [LImportDecl GhcPs]))
-> Either String [LImportDecl GhcPs]
-> IO (Either String [LImportDecl GhcPs])
forall a b. (a -> b) -> a -> b
$
let (Messages PsMessage
_warnings, Messages PsMessage
errors) = PState -> (Messages PsMessage, Messages PsMessage)
GHC.getPsMessages PState
pst
in if Bool -> Bool
not (Messages PsMessage -> Bool
forall e. Messages e -> Bool
isEmptyMessages Messages PsMessage
errors)
then String -> Either String [GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
forall a b. a -> Either a b
Left (Messages GhcMessage -> String
forall o. Outputable o => o -> String
showOutputable (PsMessage -> GhcMessage
GHC.GhcPsMessage (PsMessage -> GhcMessage)
-> Messages PsMessage -> Messages GhcMessage
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Messages PsMessage
errors))
else
let hsmod :: HsModule GhcPs
hsmod = Located (HsModule GhcPs) -> HsModule GhcPs
forall l e. GenLocated l e -> e
unLoc Located (HsModule GhcPs)
rdr_module
mmoduleName :: Maybe (XRec GhcPs ModuleName)
mmoduleName = HsModule GhcPs -> Maybe (XRec GhcPs ModuleName)
forall p. HsModule p -> Maybe (XRec p ModuleName)
hsmodName HsModule GhcPs
hsmod
main_loc :: SrcSpan
main_loc = SrcLoc -> SrcSpan
srcLocSpan (FastString -> Int -> Int -> SrcLoc
mkSrcLoc (String -> FastString
GHC.mkFastString String
filepath) Int
1 Int
1)
mod' :: GenLocated SrcSpanAnnA ModuleName
mod' = Maybe (XRec GhcPs ModuleName)
Maybe (GenLocated SrcSpanAnnA ModuleName)
mmoduleName Maybe (GenLocated SrcSpanAnnA ModuleName)
-> GenLocated SrcSpanAnnA ModuleName
-> GenLocated SrcSpanAnnA ModuleName
forall a. Maybe a -> a -> a
`orElse` SrcSpanAnnA -> ModuleName -> GenLocated SrcSpanAnnA ModuleName
forall l e. l -> e -> GenLocated l e
L (SrcSpan -> SrcSpanAnnA
forall ann. SrcSpan -> SrcAnn ann
GHC.noAnnSrcSpan SrcSpan
main_loc) ModuleName
mAIN_NAME
explicitImports :: [LImportDecl GhcPs]
explicitImports = HsModule GhcPs -> [LImportDecl GhcPs]
forall p. HsModule p -> [LImportDecl p]
hsmodImports HsModule GhcPs
hsmod
implicitImports :: [LImportDecl GhcPs]
implicitImports =
ModuleName
-> SrcSpan -> Bool -> [LImportDecl GhcPs] -> [LImportDecl GhcPs]
GHC.mkPrelImports (GenLocated SrcSpanAnnA ModuleName -> ModuleName
forall l e. GenLocated l e -> e
unLoc GenLocated SrcSpanAnnA ModuleName
mod') SrcSpan
main_loc Bool
implicitPrelude [LImportDecl GhcPs]
explicitImports
in [GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
-> Either String [GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
forall a b. b -> Either a b
Right ([LImportDecl GhcPs]
[GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
explicitImports [GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
-> [GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
-> [GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
forall a. [a] -> [a] -> [a]
++ [LImportDecl GhcPs]
[GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
implicitImports)
where
popts :: ParserOpts
popts = DynFlags -> ParserOpts
initParserOpts DynFlags
flags
loc :: RealSrcLoc
loc = FastString -> Int -> Int -> RealSrcLoc
mkRealSrcLoc (String -> FastString
GHC.mkFastString String
filepath) Int
1 Int
1
catchGhcErrors :: (ExceptionMonad m) => m (Either String a) -> m (Either String a)
catchGhcErrors :: forall (m :: * -> *) a.
ExceptionMonad m =>
m (Either String a) -> m (Either String a)
catchGhcErrors m (Either String a)
m =
(GhcException -> m (Either String a))
-> m (Either String a) -> m (Either String a)
forall (m :: * -> *) a.
ExceptionMonad m =>
(GhcException -> m a) -> m a -> m a
GHC.handleGhcException
GhcException -> m (Either String a)
forall {m :: * -> *} {a} {b}.
(Monad m, Show a) =>
a -> m (Either String b)
reportErr
((SourceError -> m (Either String a))
-> m (Either String a) -> m (Either String a)
forall (m :: * -> *) a.
MonadCatch m =>
(SourceError -> m a) -> m a -> m a
GHC.handleSourceError SourceError -> m (Either String a)
forall {m :: * -> *} {a} {b}.
(Monad m, Show a) =>
a -> m (Either String b)
reportErr m (Either String a)
m)
where
reportErr :: a -> m (Either String b)
reportErr a
e = Either String b -> m (Either String b)
forall a. a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return (Either String b -> m (Either String b))
-> Either String b -> m (Either String b)
forall a b. (a -> b) -> a -> b
$ String -> Either String b
forall a b. a -> Either a b
Left (a -> String
forall a. Show a => a -> String
show a
e)