{-# LANGUAGE DataKinds #-}
{-# LANGUAGE GADTs #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE TypeApplications #-}
{-# OPTIONS_GHC -fno-warn-orphans #-} -- instance Diagnostic {DriverMessage, GhcMessage}

module GHC.Driver.Errors.Ppr (
  -- This module only exports Diagnostic instances.
  ) where

import GHC.Prelude

import GHC.Driver.Errors.Types
import GHC.Driver.Flags
import GHC.Driver.Session
import GHC.HsToCore.Errors.Ppr ()
import GHC.Parser.Errors.Ppr ()
import GHC.Tc.Errors.Ppr ()
import GHC.Types.Error
import GHC.Types.Error.Codes ( constructorCode )
import GHC.Unit.Types
import GHC.Utils.Outputable
import GHC.Unit.Module
import GHC.Unit.State
import GHC.Types.Hint
import GHC.Types.SrcLoc
import Data.Version

import Language.Haskell.Syntax.Decls (RuleDecl(..))
import GHC.Tc.Errors.Types (TcRnMessage)
import GHC.HsToCore.Errors.Types (DsMessage)

--
-- Suggestions
--

-- | Suggests a list of 'InstantiationSuggestion' for the '.hsig' file to the user.
suggestInstantiatedWith :: ModuleName -> GenInstantiations UnitId -> [InstantiationSuggestion]
suggestInstantiatedWith :: ModuleName -> GenInstantiations UnitId -> [InstantiationSuggestion]
suggestInstantiatedWith ModuleName
pi_mod_name GenInstantiations UnitId
insts =
  [ ModuleName -> Module -> InstantiationSuggestion
InstantiationSuggestion ModuleName
k Module
v | (ModuleName
k,Module
v) <- ((ModuleName
pi_mod_name, ModuleName -> Module
forall u. ModuleName -> GenModule (GenUnit u)
mkHoleModule ModuleName
pi_mod_name) (ModuleName, Module)
-> GenInstantiations UnitId -> GenInstantiations UnitId
forall a. a -> [a] -> [a]
: GenInstantiations UnitId
insts) ]

instance Diagnostic GhcMessage where
  type DiagnosticOpts GhcMessage = GhcMessageOpts
  defaultDiagnosticOpts :: DiagnosticOpts GhcMessage
defaultDiagnosticOpts = DiagnosticOpts PsMessage
-> DiagnosticOpts TcRnMessage
-> DiagnosticOpts DsMessage
-> DiagnosticOpts DriverMessage
-> GhcMessageOpts
GhcMessageOpts (forall a. Diagnostic a => DiagnosticOpts a
defaultDiagnosticOpts @PsMessage)
                                         (forall a. Diagnostic a => DiagnosticOpts a
defaultDiagnosticOpts @TcRnMessage)
                                         (forall a. Diagnostic a => DiagnosticOpts a
defaultDiagnosticOpts @DsMessage)
                                         (forall a. Diagnostic a => DiagnosticOpts a
defaultDiagnosticOpts @DriverMessage)
  diagnosticMessage :: DiagnosticOpts GhcMessage -> GhcMessage -> DecoratedSDoc
diagnosticMessage DiagnosticOpts GhcMessage
opts = \case
    GhcPsMessage PsMessage
m
      -> DiagnosticOpts PsMessage -> PsMessage -> DecoratedSDoc
forall a. Diagnostic a => DiagnosticOpts a -> a -> DecoratedSDoc
diagnosticMessage (GhcMessageOpts -> DiagnosticOpts PsMessage
psMessageOpts DiagnosticOpts GhcMessage
GhcMessageOpts
opts) PsMessage
m
    GhcTcRnMessage TcRnMessage
m
      -> DiagnosticOpts TcRnMessage -> TcRnMessage -> DecoratedSDoc
forall a. Diagnostic a => DiagnosticOpts a -> a -> DecoratedSDoc
diagnosticMessage (GhcMessageOpts -> DiagnosticOpts TcRnMessage
tcMessageOpts DiagnosticOpts GhcMessage
GhcMessageOpts
opts) TcRnMessage
m
    GhcDsMessage DsMessage
m
      -> DiagnosticOpts DsMessage -> DsMessage -> DecoratedSDoc
forall a. Diagnostic a => DiagnosticOpts a -> a -> DecoratedSDoc
diagnosticMessage (GhcMessageOpts -> DiagnosticOpts DsMessage
dsMessageOpts DiagnosticOpts GhcMessage
GhcMessageOpts
opts) DsMessage
m
    GhcDriverMessage DriverMessage
m
      -> DiagnosticOpts DriverMessage -> DriverMessage -> DecoratedSDoc
forall a. Diagnostic a => DiagnosticOpts a -> a -> DecoratedSDoc
diagnosticMessage (GhcMessageOpts -> DiagnosticOpts DriverMessage
driverMessageOpts DiagnosticOpts GhcMessage
GhcMessageOpts
opts) DriverMessage
m
    GhcUnknownMessage (UnknownDiagnostic @e a
m)
      -> DiagnosticOpts a -> a -> DecoratedSDoc
forall a. Diagnostic a => DiagnosticOpts a -> a -> DecoratedSDoc
diagnosticMessage (forall a. Diagnostic a => DiagnosticOpts a
defaultDiagnosticOpts @e) a
m

  diagnosticReason :: GhcMessage -> DiagnosticReason
diagnosticReason = \case
    GhcPsMessage PsMessage
m
      -> PsMessage -> DiagnosticReason
forall a. Diagnostic a => a -> DiagnosticReason
diagnosticReason PsMessage
m
    GhcTcRnMessage TcRnMessage
m
      -> TcRnMessage -> DiagnosticReason
forall a. Diagnostic a => a -> DiagnosticReason
diagnosticReason TcRnMessage
m
    GhcDsMessage DsMessage
m
      -> DsMessage -> DiagnosticReason
forall a. Diagnostic a => a -> DiagnosticReason
diagnosticReason DsMessage
m
    GhcDriverMessage DriverMessage
m
      -> DriverMessage -> DiagnosticReason
forall a. Diagnostic a => a -> DiagnosticReason
diagnosticReason DriverMessage
m
    GhcUnknownMessage UnknownDiagnostic
m
      -> UnknownDiagnostic -> DiagnosticReason
forall a. Diagnostic a => a -> DiagnosticReason
diagnosticReason UnknownDiagnostic
m

  diagnosticHints :: GhcMessage -> [GhcHint]
diagnosticHints = \case
    GhcPsMessage PsMessage
m
      -> PsMessage -> [GhcHint]
forall a. Diagnostic a => a -> [GhcHint]
diagnosticHints PsMessage
m
    GhcTcRnMessage TcRnMessage
m
      -> TcRnMessage -> [GhcHint]
forall a. Diagnostic a => a -> [GhcHint]
diagnosticHints TcRnMessage
m
    GhcDsMessage DsMessage
m
      -> DsMessage -> [GhcHint]
forall a. Diagnostic a => a -> [GhcHint]
diagnosticHints DsMessage
m
    GhcDriverMessage DriverMessage
m
      -> DriverMessage -> [GhcHint]
forall a. Diagnostic a => a -> [GhcHint]
diagnosticHints DriverMessage
m
    GhcUnknownMessage UnknownDiagnostic
m
      -> UnknownDiagnostic -> [GhcHint]
forall a. Diagnostic a => a -> [GhcHint]
diagnosticHints UnknownDiagnostic
m

  diagnosticCode :: GhcMessage -> Maybe DiagnosticCode
diagnosticCode = GhcMessage -> Maybe DiagnosticCode
forall diag.
(Generic diag, GDiagnosticCode (Rep diag)) =>
diag -> Maybe DiagnosticCode
constructorCode

instance Diagnostic DriverMessage where
  type DiagnosticOpts DriverMessage = DriverMessageOpts
  defaultDiagnosticOpts :: DiagnosticOpts DriverMessage
defaultDiagnosticOpts = DiagnosticOpts PsMessage -> DriverMessageOpts
DriverMessageOpts (forall a. Diagnostic a => DiagnosticOpts a
defaultDiagnosticOpts @PsMessage)
  diagnosticMessage :: DiagnosticOpts DriverMessage -> DriverMessage -> DecoratedSDoc
diagnosticMessage DiagnosticOpts DriverMessage
opts = \case
    DriverUnknownMessage (UnknownDiagnostic @e a
m)
      -> DiagnosticOpts a -> a -> DecoratedSDoc
forall a. Diagnostic a => DiagnosticOpts a -> a -> DecoratedSDoc
diagnosticMessage (forall a. Diagnostic a => DiagnosticOpts a
defaultDiagnosticOpts @e) a
m
    DriverPsHeaderMessage PsMessage
m
      -> DiagnosticOpts PsMessage -> PsMessage -> DecoratedSDoc
forall a. Diagnostic a => DiagnosticOpts a -> a -> DecoratedSDoc
diagnosticMessage (DriverMessageOpts -> DiagnosticOpts PsMessage
psDiagnosticOpts DiagnosticOpts DriverMessage
DriverMessageOpts
opts) PsMessage
m
    DriverMissingHomeModules [ModuleName]
missing BuildingCabalPackage
buildingCabalPackage
      -> let msg :: SDoc
msg | BuildingCabalPackage
buildingCabalPackage BuildingCabalPackage -> BuildingCabalPackage -> Bool
forall a. Eq a => a -> a -> Bool
== BuildingCabalPackage
YesBuildingCabalPackage
                 = SDoc -> Int -> SDoc -> SDoc
hang
                     (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"These modules are needed for compilation but not listed in your .cabal file's other-modules: ")
                     Int
4
                     ([SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
sep ((ModuleName -> SDoc) -> [ModuleName] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map ModuleName -> SDoc
forall a. Outputable a => a -> SDoc
ppr [ModuleName]
missing))
                 | Bool
otherwise
                 =
                   SDoc -> Int -> SDoc -> SDoc
hang
                     (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"Modules are not listed in command line but needed for compilation: ")
                     Int
4
                     ([SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
sep ((ModuleName -> SDoc) -> [ModuleName] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map ModuleName -> SDoc
forall a. Outputable a => a -> SDoc
ppr [ModuleName]
missing))
         in SDoc -> DecoratedSDoc
mkSimpleDecorated SDoc
msg
    DriverUnknownHiddenModules [ModuleName]
missing
      -> let msg :: SDoc
msg = SDoc -> Int -> SDoc -> SDoc
hang
                     (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"Modules are listened as hidden but not part of the unit: ")
                     Int
4
                     ([SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
sep ((ModuleName -> SDoc) -> [ModuleName] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map ModuleName -> SDoc
forall a. Outputable a => a -> SDoc
ppr [ModuleName]
missing))
         in SDoc -> DecoratedSDoc
mkSimpleDecorated SDoc
msg
    DriverUnknownReexportedModules [ModuleName]
missing
      -> let msg :: SDoc
msg = SDoc -> Int -> SDoc -> SDoc
hang
                     (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"Modules are listened as reexported but can't be found in any dependency: ")
                     Int
4
                     ([SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
sep ((ModuleName -> SDoc) -> [ModuleName] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map ModuleName -> SDoc
forall a. Outputable a => a -> SDoc
ppr [ModuleName]
missing))
         in SDoc -> DecoratedSDoc
mkSimpleDecorated SDoc
msg
    DriverUnusedPackages [(UnitId, PackageName, Version, PackageArg)]
unusedArgs
      -> let msg :: SDoc
msg = [SDoc] -> SDoc
forall doc. IsDoc doc => [doc] -> doc
vcat [ String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"The following packages were specified" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+>
                          String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"via -package or -package-id flags,"
                        , String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"but were not needed for compilation:"
                        , Int -> SDoc -> SDoc
nest Int
2 ([SDoc] -> SDoc
forall doc. IsDoc doc => [doc] -> doc
vcat (((UnitId, PackageName, Version, PackageArg) -> SDoc)
-> [(UnitId, PackageName, Version, PackageArg)] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map (SDoc -> SDoc
withDash (SDoc -> SDoc)
-> ((UnitId, PackageName, Version, PackageArg) -> SDoc)
-> (UnitId, PackageName, Version, PackageArg)
-> SDoc
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (UnitId, PackageName, Version, PackageArg) -> SDoc
forall {a} {a}. Outputable a => (a, a, Version, PackageArg) -> SDoc
displayOneUnused) [(UnitId, PackageName, Version, PackageArg)]
unusedArgs))
                        ]
         in SDoc -> DecoratedSDoc
mkSimpleDecorated SDoc
msg
         where
            withDash :: SDoc -> SDoc
            withDash :: SDoc -> SDoc
withDash = SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
(<+>) (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"-")

            displayOneUnused :: (a, a, Version, PackageArg) -> SDoc
displayOneUnused (a
_uid, a
pn , Version
v, PackageArg
f) =
              a -> SDoc
forall a. Outputable a => a -> SDoc
ppr a
pn SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"-"  SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<> String -> SDoc
forall doc. IsLine doc => String -> doc
text (Version -> String
showVersion Version
v)
                     SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc
parens (PackageArg -> SDoc
suffix PackageArg
f)

            suffix :: PackageArg -> SDoc
suffix PackageArg
f = String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"exposed by flag" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> PackageArg -> SDoc
pprUnusedArg PackageArg
f

            pprUnusedArg :: PackageArg -> SDoc
            pprUnusedArg :: PackageArg -> SDoc
pprUnusedArg (PackageArg String
str) = String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"-package" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
str
            pprUnusedArg (UnitIdArg Unit
uid) = String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"-package-id" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> Unit -> SDoc
forall a. Outputable a => a -> SDoc
ppr Unit
uid

    DriverUnnecessarySourceImports ModuleName
mod
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"{-# SOURCE #-} unnecessary in import of " SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> SDoc -> SDoc
quotes (ModuleName -> SDoc
forall a. Outputable a => a -> SDoc
ppr ModuleName
mod))
    DriverDuplicatedModuleDeclaration Module
mod [String]
files
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (SDoc -> DecoratedSDoc) -> SDoc -> DecoratedSDoc
forall a b. (a -> b) -> a -> b
$
           String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"module" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> SDoc -> SDoc
quotes (Module -> SDoc
forall a. Outputable a => a -> SDoc
ppr Module
mod) SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+>
           String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"is defined in multiple files:" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+>
           [SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
sep ((String -> SDoc) -> [String] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map String -> SDoc
forall doc. IsLine doc => String -> doc
text [String]
files)
    DriverModuleNotFound ModuleName
mod
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"module" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> SDoc -> SDoc
quotes (ModuleName -> SDoc
forall a. Outputable a => a -> SDoc
ppr ModuleName
mod) SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"cannot be found locally")
    DriverFileModuleNameMismatch ModuleName
actual ModuleName
expected
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (SDoc -> DecoratedSDoc) -> SDoc -> DecoratedSDoc
forall a b. (a -> b) -> a -> b
$
           String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"File name does not match module name:"
           SDoc -> SDoc -> SDoc
forall doc. IsDoc doc => doc -> doc -> doc
$$ String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"Saw     :" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> SDoc -> SDoc
quotes (ModuleName -> SDoc
forall a. Outputable a => a -> SDoc
ppr ModuleName
actual)
           SDoc -> SDoc -> SDoc
forall doc. IsDoc doc => doc -> doc -> doc
$$ String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"Expected:" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> SDoc -> SDoc
quotes (ModuleName -> SDoc
forall a. Outputable a => a -> SDoc
ppr ModuleName
expected)

    DriverUnexpectedSignature ModuleName
pi_mod_name BuildingCabalPackage
_buildingCabalPackage GenInstantiations UnitId
_instantiations
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (SDoc -> DecoratedSDoc) -> SDoc -> DecoratedSDoc
forall a b. (a -> b) -> a -> b
$ String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"Unexpected signature:" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> SDoc -> SDoc
quotes (ModuleName -> SDoc
forall a. Outputable a => a -> SDoc
ppr ModuleName
pi_mod_name)
    DriverFileNotFound String
hsFilePath
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"Can't find" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
hsFilePath)
    DriverMessage
DriverStaticPointersNotSupported
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"StaticPointers is not supported in GHCi interactive expressions.")
    DriverBackpackModuleNotFound ModuleName
modname
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"module" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> ModuleName -> SDoc
forall a. Outputable a => a -> SDoc
ppr ModuleName
modname SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"was not found")
    DriverUserDefinedRuleIgnored (HsRule { rd_name :: forall pass. RuleDecl pass -> XRec pass FastString
rd_name = XRec GhcTc FastString
n })
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (SDoc -> DecoratedSDoc) -> SDoc -> DecoratedSDoc
forall a b. (a -> b) -> a -> b
$
            String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"Rule \"" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<> FastString -> SDoc
forall doc. IsLine doc => FastString -> doc
ftext (GenLocated (SrcAnn NoEpAnns) FastString -> FastString
forall l e. GenLocated l e -> e
unLoc XRec GhcTc FastString
GenLocated (SrcAnn NoEpAnns) FastString
n) SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"\" ignored" SDoc -> SDoc -> SDoc
$+$
            String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"Defining user rules is disabled under Safe Haskell"
    DriverMixedSafetyImport ModuleName
modName
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (SDoc -> DecoratedSDoc) -> SDoc -> DecoratedSDoc
forall a b. (a -> b) -> a -> b
$
           String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"Module" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> ModuleName -> SDoc
forall a. Outputable a => a -> SDoc
ppr ModuleName
modName SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> String -> SDoc
forall doc. IsLine doc => String -> doc
text (String
"is imported both as a safe and unsafe import!")
    DriverCannotLoadInterfaceFile Module
m
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (SDoc -> DecoratedSDoc) -> SDoc -> DecoratedSDoc
forall a b. (a -> b) -> a -> b
$
           String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"Can't load the interface file for" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> Module -> SDoc
forall a. Outputable a => a -> SDoc
ppr Module
m
           SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
", to check that it can be safely imported"
    DriverInferredSafeModule Module
m
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (SDoc -> DecoratedSDoc) -> SDoc -> DecoratedSDoc
forall a b. (a -> b) -> a -> b
$
           SDoc -> SDoc
quotes (ModuleName -> SDoc
forall a. Outputable a => a -> SDoc
ppr (ModuleName -> SDoc) -> ModuleName -> SDoc
forall a b. (a -> b) -> a -> b
$ Module -> ModuleName
forall unit. GenModule unit -> ModuleName
moduleName Module
m) SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"has been inferred as safe!"
    DriverInferredSafeImport Module
m
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (SDoc -> DecoratedSDoc) -> SDoc -> DecoratedSDoc
forall a b. (a -> b) -> a -> b
$
           [SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
sep
             [ String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"Importing Safe-Inferred module "
                 SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<> ModuleName -> SDoc
forall a. Outputable a => a -> SDoc
ppr (Module -> ModuleName
forall unit. GenModule unit -> ModuleName
moduleName Module
m)
                 SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
" from explicitly Safe module"
             ]
    DriverMarkedTrustworthyButInferredSafe Module
m
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (SDoc -> DecoratedSDoc) -> SDoc -> DecoratedSDoc
forall a b. (a -> b) -> a -> b
$
           SDoc -> SDoc
quotes (ModuleName -> SDoc
forall a. Outputable a => a -> SDoc
ppr (ModuleName -> SDoc) -> ModuleName -> SDoc
forall a b. (a -> b) -> a -> b
$ Module -> ModuleName
forall unit. GenModule unit -> ModuleName
moduleName Module
m) SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"is marked as Trustworthy but has been inferred as safe!"
    DriverCannotImportUnsafeModule Module
m
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (SDoc -> DecoratedSDoc) -> SDoc -> DecoratedSDoc
forall a b. (a -> b) -> a -> b
$
           [SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
sep [ ModuleName -> SDoc
forall a. Outputable a => a -> SDoc
ppr (Module -> ModuleName
forall unit. GenModule unit -> ModuleName
moduleName Module
m)
                   SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
": Can't be safely imported!"
               , String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"The module itself isn't safe." ]
    DriverMissingSafeHaskellMode Module
modName
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (SDoc -> DecoratedSDoc) -> SDoc -> DecoratedSDoc
forall a b. (a -> b) -> a -> b
$
           Module -> SDoc
forall a. Outputable a => a -> SDoc
ppr Module
modName SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"is missing Safe Haskell mode"
    DriverPackageNotTrusted UnitState
state UnitId
pkg
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (SDoc -> DecoratedSDoc) -> SDoc -> DecoratedSDoc
forall a b. (a -> b) -> a -> b
$
           UnitState -> SDoc -> SDoc
pprWithUnitState UnitState
state
             (SDoc -> SDoc) -> SDoc -> SDoc
forall a b. (a -> b) -> a -> b
$ String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"The package ("
                SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<> UnitId -> SDoc
forall a. Outputable a => a -> SDoc
ppr UnitId
pkg
                SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
") is required to be trusted but it isn't!"
    DriverCannotImportFromUntrustedPackage UnitState
state Module
m
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (SDoc -> DecoratedSDoc) -> SDoc -> DecoratedSDoc
forall a b. (a -> b) -> a -> b
$
           [SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
sep [ ModuleName -> SDoc
forall a. Outputable a => a -> SDoc
ppr (Module -> ModuleName
forall unit. GenModule unit -> ModuleName
moduleName Module
m)
                   SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
": Can't be safely imported!"
               , String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"The package ("
                   SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<> (UnitState -> SDoc -> SDoc
pprWithUnitState UnitState
state (SDoc -> SDoc) -> SDoc -> SDoc
forall a b. (a -> b) -> a -> b
$ Unit -> SDoc
forall a. Outputable a => a -> SDoc
ppr (Module -> Unit
forall unit. GenModule unit -> unit
moduleUnit Module
m))
                   SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
") the module resides in isn't trusted."
               ]
    DriverRedirectedNoMain ModuleName
mod_name
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (SDoc -> DecoratedSDoc) -> SDoc -> DecoratedSDoc
forall a b. (a -> b) -> a -> b
$ (String -> SDoc
forall doc. IsLine doc => String -> doc
text
                       (String
"Output was redirected with -o, " String -> String -> String
forall a. [a] -> [a] -> [a]
++
                       String
"but no output will be generated.") SDoc -> SDoc -> SDoc
forall doc. IsDoc doc => doc -> doc -> doc
$$
                       (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"There is no module named" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+>
                       SDoc -> SDoc
quotes (ModuleName -> SDoc
forall a. Outputable a => a -> SDoc
ppr ModuleName
mod_name) SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"."))
    DriverHomePackagesNotClosed [UnitId]
needed_unit_ids
      -> SDoc -> DecoratedSDoc
mkSimpleDecorated (SDoc -> DecoratedSDoc) -> SDoc -> DecoratedSDoc
forall a b. (a -> b) -> a -> b
$ [SDoc] -> SDoc
forall doc. IsDoc doc => [doc] -> doc
vcat ([String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"Home units are not closed."
                                  , String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"It is necessary to also load the following units:" ]
                                  [SDoc] -> [SDoc] -> [SDoc]
forall a. [a] -> [a] -> [a]
++ (UnitId -> SDoc) -> [UnitId] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map (\UnitId
uid -> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"-" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> UnitId -> SDoc
forall a. Outputable a => a -> SDoc
ppr UnitId
uid) [UnitId]
needed_unit_ids)

  diagnosticReason :: DriverMessage -> DiagnosticReason
diagnosticReason = \case
    DriverUnknownMessage UnknownDiagnostic
m
      -> UnknownDiagnostic -> DiagnosticReason
forall a. Diagnostic a => a -> DiagnosticReason
diagnosticReason UnknownDiagnostic
m
    DriverPsHeaderMessage {}
      -> DiagnosticReason
ErrorWithoutFlag
    DriverMissingHomeModules{}
      -> WarningFlag -> DiagnosticReason
WarningWithFlag WarningFlag
Opt_WarnMissingHomeModules
    DriverUnknownHiddenModules {}
      -> DiagnosticReason
ErrorWithoutFlag
    DriverUnknownReexportedModules {}
      -> DiagnosticReason
ErrorWithoutFlag
    DriverUnusedPackages{}
      -> WarningFlag -> DiagnosticReason
WarningWithFlag WarningFlag
Opt_WarnUnusedPackages
    DriverUnnecessarySourceImports{}
      -> WarningFlag -> DiagnosticReason
WarningWithFlag WarningFlag
Opt_WarnUnusedImports
    DriverDuplicatedModuleDeclaration{}
      -> DiagnosticReason
ErrorWithoutFlag
    DriverModuleNotFound{}
      -> DiagnosticReason
ErrorWithoutFlag
    DriverFileModuleNameMismatch{}
      -> DiagnosticReason
ErrorWithoutFlag
    DriverUnexpectedSignature{}
      -> DiagnosticReason
ErrorWithoutFlag
    DriverFileNotFound{}
      -> DiagnosticReason
ErrorWithoutFlag
    DriverMessage
DriverStaticPointersNotSupported
      -> DiagnosticReason
WarningWithoutFlag
    DriverBackpackModuleNotFound{}
      -> DiagnosticReason
ErrorWithoutFlag
    DriverUserDefinedRuleIgnored{}
      -> DiagnosticReason
WarningWithoutFlag
    DriverMixedSafetyImport{}
      -> DiagnosticReason
ErrorWithoutFlag
    DriverCannotLoadInterfaceFile{}
      -> DiagnosticReason
ErrorWithoutFlag
    DriverInferredSafeModule{}
      -> WarningFlag -> DiagnosticReason
WarningWithFlag WarningFlag
Opt_WarnSafe
    DriverMarkedTrustworthyButInferredSafe{}
      ->WarningFlag -> DiagnosticReason
WarningWithFlag WarningFlag
Opt_WarnTrustworthySafe
    DriverInferredSafeImport{}
      -> WarningFlag -> DiagnosticReason
WarningWithFlag WarningFlag
Opt_WarnInferredSafeImports
    DriverCannotImportUnsafeModule{}
      -> DiagnosticReason
ErrorWithoutFlag
    DriverMissingSafeHaskellMode{}
      -> WarningFlag -> DiagnosticReason
WarningWithFlag WarningFlag
Opt_WarnMissingSafeHaskellMode
    DriverPackageNotTrusted{}
      -> DiagnosticReason
ErrorWithoutFlag
    DriverCannotImportFromUntrustedPackage{}
      -> DiagnosticReason
ErrorWithoutFlag
    DriverRedirectedNoMain {}
      -> DiagnosticReason
ErrorWithoutFlag
    DriverHomePackagesNotClosed {}
      -> DiagnosticReason
ErrorWithoutFlag

  diagnosticHints :: DriverMessage -> [GhcHint]
diagnosticHints = \case
    DriverUnknownMessage UnknownDiagnostic
m
      -> UnknownDiagnostic -> [GhcHint]
forall a. Diagnostic a => a -> [GhcHint]
diagnosticHints UnknownDiagnostic
m
    DriverPsHeaderMessage PsMessage
psMsg
      -> PsMessage -> [GhcHint]
forall a. Diagnostic a => a -> [GhcHint]
diagnosticHints PsMessage
psMsg
    DriverMissingHomeModules{}
      -> [GhcHint]
noHints
    DriverUnknownHiddenModules {}
      -> [GhcHint]
noHints
    DriverUnknownReexportedModules {}
      -> [GhcHint]
noHints
    DriverUnusedPackages{}
      -> [GhcHint]
noHints
    DriverUnnecessarySourceImports{}
      -> [GhcHint]
noHints
    DriverDuplicatedModuleDeclaration{}
      -> [GhcHint]
noHints
    DriverModuleNotFound{}
      -> [GhcHint]
noHints
    DriverFileModuleNameMismatch{}
      -> [GhcHint]
noHints
    DriverUnexpectedSignature ModuleName
pi_mod_name BuildingCabalPackage
buildingCabalPackage GenInstantiations UnitId
instantiations
      -> if BuildingCabalPackage
buildingCabalPackage BuildingCabalPackage -> BuildingCabalPackage -> Bool
forall a. Eq a => a -> a -> Bool
== BuildingCabalPackage
YesBuildingCabalPackage
           then [ModuleName -> GhcHint
SuggestAddSignatureCabalFile ModuleName
pi_mod_name]
           else [ModuleName -> [InstantiationSuggestion] -> GhcHint
SuggestSignatureInstantiations ModuleName
pi_mod_name (ModuleName -> GenInstantiations UnitId -> [InstantiationSuggestion]
suggestInstantiatedWith ModuleName
pi_mod_name GenInstantiations UnitId
instantiations)]
    DriverFileNotFound{}
      -> [GhcHint]
noHints
    DriverMessage
DriverStaticPointersNotSupported
      -> [GhcHint]
noHints
    DriverBackpackModuleNotFound{}
      -> [GhcHint]
noHints
    DriverUserDefinedRuleIgnored{}
      -> [GhcHint]
noHints
    DriverMixedSafetyImport{}
      -> [GhcHint]
noHints
    DriverCannotLoadInterfaceFile{}
      -> [GhcHint]
noHints
    DriverInferredSafeModule{}
      -> [GhcHint]
noHints
    DriverInferredSafeImport{}
      -> [GhcHint]
noHints
    DriverCannotImportUnsafeModule{}
      -> [GhcHint]
noHints
    DriverMissingSafeHaskellMode{}
      -> [GhcHint]
noHints
    DriverPackageNotTrusted{}
      -> [GhcHint]
noHints
    DriverMarkedTrustworthyButInferredSafe{}
      -> [GhcHint]
noHints
    DriverCannotImportFromUntrustedPackage{}
      -> [GhcHint]
noHints
    DriverRedirectedNoMain {}
      -> [GhcHint]
noHints
    DriverHomePackagesNotClosed {}
      -> [GhcHint]
noHints

  diagnosticCode :: DriverMessage -> Maybe DiagnosticCode
diagnosticCode = DriverMessage -> Maybe DiagnosticCode
forall diag.
(Generic diag, GDiagnosticCode (Rep diag)) =>
diag -> Maybe DiagnosticCode
constructorCode