GHC.Driver.Errors.Types

ghc-lib-parser-9.10.1.20250103: The GHC API, decoupled from GHC versions

Safe Haskell | Ignore
Language | GHC2021

GHC.Driver.Errors.Types

Contents

- Constructors
- Utility functions

Synopsis

- data GhcMessage where
  - GhcPsMessage :: PsMessage -> GhcMessage
  - GhcTcRnMessage :: TcRnMessage -> GhcMessage
  - GhcDsMessage :: DsMessage -> GhcMessage
  - GhcDriverMessage :: DriverMessage -> GhcMessage
  - GhcUnknownMessage :: UnknownDiagnostic (DiagnosticOpts GhcMessage) -> GhcMessage
- data GhcMessageOpts = GhcMessageOpts {
  - psMessageOpts :: DiagnosticOpts PsMessage
  - tcMessageOpts :: DiagnosticOpts TcRnMessage
  - dsMessageOpts :: DiagnosticOpts DsMessage
  - driverMessageOpts :: DiagnosticOpts DriverMessage
  }
- data DriverMessage where
  - DriverUnknownMessage :: UnknownDiagnostic (DiagnosticOpts DriverMessage) -> DriverMessage
  - DriverPsHeaderMessage :: !PsMessage -> DriverMessage
  - DriverMissingHomeModules :: UnitId -> [ModuleName] -> !BuildingCabalPackage -> DriverMessage
  - DriverUnknownReexportedModules :: UnitId -> [ModuleName] -> DriverMessage
  - DriverUnknownHiddenModules :: UnitId -> [ModuleName] -> DriverMessage
  - DriverUnusedPackages :: [(UnitId, PackageName, Version, PackageArg)] -> DriverMessage
  - DriverUnnecessarySourceImports :: !ModuleName -> DriverMessage
  - DriverDuplicatedModuleDeclaration :: !Module -> [FilePath] -> DriverMessage
  - DriverModuleNotFound :: !ModuleName -> DriverMessage
  - DriverFileModuleNameMismatch :: !ModuleName -> !ModuleName -> DriverMessage
  - DriverUnexpectedSignature :: !ModuleName -> !BuildingCabalPackage -> GenInstantiations UnitId -> DriverMessage
  - DriverFileNotFound :: !FilePath -> DriverMessage
  - DriverStaticPointersNotSupported :: DriverMessage
  - DriverBackpackModuleNotFound :: !ModuleName -> DriverMessage
  - DriverUserDefinedRuleIgnored :: !(RuleDecl GhcTc) -> DriverMessage
  - DriverMixedSafetyImport :: !ModuleName -> DriverMessage
  - DriverCannotLoadInterfaceFile :: !Module -> DriverMessage
  - DriverInferredSafeModule :: !Module -> DriverMessage
  - DriverMarkedTrustworthyButInferredSafe :: !Module -> DriverMessage
  - DriverInferredSafeImport :: !Module -> DriverMessage
  - DriverCannotImportUnsafeModule :: !Module -> DriverMessage
  - DriverMissingSafeHaskellMode :: !Module -> DriverMessage
  - DriverPackageNotTrusted :: !UnitState -> !UnitId -> DriverMessage
  - DriverCannotImportFromUntrustedPackage :: !UnitState -> !Module -> DriverMessage
  - DriverRedirectedNoMain :: !ModuleName -> DriverMessage
  - DriverHomePackagesNotClosed :: ![UnitId] -> DriverMessage
  - DriverInterfaceError :: !IfaceMessage -> DriverMessage
  - DriverInconsistentDynFlags :: String -> DriverMessage
  - DriverSafeHaskellIgnoredExtension :: !Extension -> DriverMessage
  - DriverPackageTrustIgnored :: DriverMessage
  - DriverUnrecognisedFlag :: String -> DriverMessage
  - DriverDeprecatedFlag :: String -> String -> DriverMessage
- data DriverMessageOpts = DriverMessageOpts {
  - psDiagnosticOpts :: DiagnosticOpts PsMessage
  - ifaceDiagnosticOpts :: DiagnosticOpts IfaceMessage
  }
- type DriverMessages = Messages DriverMessage
- data PsMessage = PsHeaderMessage !PsHeaderMessage
- type WarningMessages = Messages GhcMessage
- type ErrorMessages = Messages GhcMessage
- type WarnMsg = MsgEnvelope GhcMessage
- ghcUnknownMessage :: (DiagnosticOpts a ~ NoDiagnosticOpts, Diagnostic a, Typeable a) => a -> GhcMessage
- hoistTcRnMessage :: Monad m => m (Messages TcRnMessage, a) -> m (Messages GhcMessage, a)
- hoistDsMessage :: Monad m => m (Messages DsMessage, a) -> m (Messages GhcMessage, a)
- checkBuildingCabalPackage :: DynFlags -> BuildingCabalPackage

# Documentation

data GhcMessage where #

The umbrella type that encompasses all the different messages that GHC might output during the different compilation stages. See Note [GhcMessage].

Constructors

GhcPsMessage :: PsMessage -> GhcMessage | A message from the parsing phase.
GhcTcRnMessage :: TcRnMessage -> GhcMessage | A message from typecheck/renaming phase.
GhcDsMessage :: DsMessage -> GhcMessage | A message from the desugaring (HsToCore) phase.
GhcDriverMessage :: DriverMessage -> GhcMessage | A message from the driver.
GhcUnknownMessage :: UnknownDiagnostic (DiagnosticOpts GhcMessage) -> GhcMessage | An "escape" hatch which can be used when we don't know the source of the message or if the message is not one of the typed ones. The `Diagnostic` and `Typeable` constraints ensure that if we know, at pattern-matching time, the originating type, we can attempt a cast and access the fully-structured error. This would be the case for a GHC plugin that offers a domain-specific error type but that doesn't want to place the burden on IDEs/application code to "know" it. The `Diagnostic` constraint ensures that worst case scenario we can still render this into something which can be eventually converted into a `DecoratedSDoc`.

#### Instances

Instances details

Generic GhcMessage # |
Instance details Defined in GHC.Driver.Errors.Types Associated Types
type Rep GhcMessage |
Instance details Defined in GHC.Driver.Errors.Types type Rep GhcMessage = D1 ('MetaData "GhcMessage" "GHC.Driver.Errors.Types" "ghc-lib-parser-9.10.1.20250103-FaHJOkjTl0Y9STmjhYbIHo" 'False) ((C1 ('MetaCons "GhcPsMessage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 PsMessage)) :+: C1 ('MetaCons "GhcTcRnMessage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 TcRnMessage))) :+: (C1 ('MetaCons "GhcDsMessage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 DsMessage)) :+: (C1 ('MetaCons "GhcDriverMessage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 DriverMessage)) :+: C1 ('MetaCons "GhcUnknownMessage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (UnknownDiagnostic (DiagnosticOpts GhcMessage)))))))
Methods from :: GhcMessage -> Rep GhcMessage x # to :: Rep GhcMessage x -> GhcMessage #
Diagnostic GhcMessage # |
Instance details Defined in GHC.Driver.Errors.Ppr Associated Types
type DiagnosticOpts GhcMessage |
Instance details Defined in GHC.Driver.Errors.Ppr type DiagnosticOpts GhcMessage = GhcMessageOpts
Methods diagnosticMessage :: DiagnosticOpts GhcMessage -> GhcMessage -> DecoratedSDoc # diagnosticReason :: GhcMessage -> DiagnosticReason # diagnosticHints :: GhcMessage -> [GhcHint] # diagnosticCode :: GhcMessage -> Maybe DiagnosticCode #
type Rep GhcMessage # |
Instance details Defined in GHC.Driver.Errors.Types type Rep GhcMessage = D1 ('MetaData "GhcMessage" "GHC.Driver.Errors.Types" "ghc-lib-parser-9.10.1.20250103-FaHJOkjTl0Y9STmjhYbIHo" 'False) ((C1 ('MetaCons "GhcPsMessage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 PsMessage)) :+: C1 ('MetaCons "GhcTcRnMessage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 TcRnMessage))) :+: (C1 ('MetaCons "GhcDsMessage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 DsMessage)) :+: (C1 ('MetaCons "GhcDriverMessage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 DriverMessage)) :+: C1 ('MetaCons "GhcUnknownMessage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (UnknownDiagnostic (DiagnosticOpts GhcMessage)))))))
type DiagnosticOpts GhcMessage # |
Instance details Defined in GHC.Driver.Errors.Ppr type DiagnosticOpts GhcMessage = GhcMessageOpts

data GhcMessageOpts #

Constructors

GhcMessageOpts |
Fields psMessageOpts :: DiagnosticOpts PsMessage tcMessageOpts :: DiagnosticOpts TcRnMessage dsMessageOpts :: DiagnosticOpts DsMessage driverMessageOpts :: DiagnosticOpts DriverMessage

#### Instances

Instances details

HasDefaultDiagnosticOpts GhcMessageOpts # |
Instance details Defined in GHC.Driver.Errors.Ppr Methods defaultOpts :: GhcMessageOpts #

data DriverMessage where #

A message from the driver.

Constructors

DriverUnknownMessage :: UnknownDiagnostic (DiagnosticOpts DriverMessage) -> DriverMessage | Simply wraps a generic `Diagnostic` message `a`.
DriverPsHeaderMessage :: !PsMessage -> DriverMessage | A parse error in parsing a Haskell file header during dependency analysis
DriverMissingHomeModules :: UnitId -> [ModuleName] -> !BuildingCabalPackage -> DriverMessage | DriverMissingHomeModules is a warning (controlled with -Wmissing-home-modules) that arises when running GHC in --make mode when some modules needed for compilation are not included on the command line. For example, if A imports B, `ghc --make A.hs` will cause this warning, while `ghc --make A.hs B.hs` will not. Useful for cabal to ensure GHC won't pick up modules listed neither in 'exposed-modules' nor in 'other-modules'. Test case: warningsshould_compileMissingMod
DriverUnknownReexportedModules :: UnitId -> [ModuleName] -> DriverMessage | DriverUnknown is a warning that arises when a user tries to reexport a module which isn't part of that unit.
DriverUnknownHiddenModules :: UnitId -> [ModuleName] -> DriverMessage | DriverUnknownHiddenModules is a warning that arises when a user tries to hide a module which isn't part of that unit.
DriverUnusedPackages :: [(UnitId, PackageName, Version, PackageArg)] -> DriverMessage | DriverUnusedPackages occurs when when package is requested on command line, but was never needed during compilation. Activated by -Wunused-packages. Test cases: warningsshould_compileUnusedPackages
DriverUnnecessarySourceImports :: !ModuleName -> DriverMessage | DriverUnnecessarySourceImports (controlled with -Wunused-imports) occurs if there are {-# SOURCE #-} imports which are not necessary. See `warnUnnecessarySourceImports` in `Make`. Test cases: warningsshould_compileT10637
DriverDuplicatedModuleDeclaration :: !Module -> [FilePath] -> DriverMessage | DriverDuplicatedModuleDeclaration occurs if a module `A` is declared in multiple files. Test cases: None.
DriverModuleNotFound :: !ModuleName -> DriverMessage | DriverModuleNotFound occurs if a module `A` can't be found. Test cases: None.
DriverFileModuleNameMismatch :: !ModuleName -> !ModuleName -> DriverMessage | DriverFileModuleNameMismatch occurs if a module `A` is defined in a file with a different name. The first field is the name written in the source code; the second argument is the name extracted from the filename. Test cases: modulemod178, driver/bug1677
DriverUnexpectedSignature :: !ModuleName -> !BuildingCabalPackage -> GenInstantiations UnitId -> DriverMessage | DriverUnexpectedSignature occurs when GHC encounters a module `A` that imports a signature file which is neither in the `signatures` section of a '.cabal' file nor in any package in the home modules. Example: - MyStr.hsig is defined, but not added to `signatures` in the '.cabal' file. signature MyStr where data Str - A.hs, which tries to import the signature. module A where import MyStr Test cases: driver/T12955
DriverFileNotFound :: !FilePath -> DriverMessage | DriverFileNotFound occurs when the input file (e.g. given on the command line) can't be found. Test cases: None.
DriverStaticPointersNotSupported :: DriverMessage | DriverStaticPointersNotSupported occurs when the `StaticPointers` extension is used in an interactive GHCi context. Test cases: ghciscriptsStaticPtr
DriverBackpackModuleNotFound :: !ModuleName -> DriverMessage | DriverBackpackModuleNotFound occurs when Backpack can't find a particular module during its dependency analysis. Test cases: -
DriverUserDefinedRuleIgnored :: !(RuleDecl GhcTc) -> DriverMessage | DriverUserDefinedRuleIgnored is a warning that occurs when user-defined rules are ignored. This typically happens when Safe Haskell. Test cases: testssafeHaskellsafeInfered/UnsafeWarn05 testssafeHaskellsafeInfered/UnsafeWarn06 testssafeHaskellsafeInfered/UnsafeWarn07 testssafeHaskellsafeInfered/UnsafeInfered11 testssafeHaskellsafeLanguage/SafeLang03
DriverMixedSafetyImport :: !ModuleName -> DriverMessage | DriverMixedSafetyImport is an error that occurs when a module is imported both as safe and unsafe. Test cases: testssafeHaskellsafeInfered/Mixed03 testssafeHaskellsafeInfered/Mixed02
DriverCannotLoadInterfaceFile :: !Module -> DriverMessage | DriverCannotLoadInterfaceFile is an error that occurs when we cannot load the interface file for a particular module. This can happen for example in the context of Safe Haskell, when we have to load a module to check if it can be safely imported. Test cases: None.
DriverInferredSafeModule :: !Module -> DriverMessage | DriverInferredSafeImport is a warning (controlled by the Opt_WarnSafe flag) that occurs when a module is inferred safe. Test cases: None.
DriverMarkedTrustworthyButInferredSafe :: !Module -> DriverMessage | DriverMarkedTrustworthyButInferredSafe is a warning (controlled by the Opt_WarnTrustworthySafe flag) that occurs when a module is marked trustworthy in SafeHaskell but it has been inferred safe. Test cases: testssafeHaskellsafeInfered/TrustworthySafe02 testssafeHaskellsafeInfered/TrustworthySafe03
DriverInferredSafeImport :: !Module -> DriverMessage | DriverInferredSafeImport is a warning (controlled by the Opt_WarnInferredSafeImports flag) that occurs when a safe-inferred module is imported from a safe module. Test cases: None.
DriverCannotImportUnsafeModule :: !Module -> DriverMessage | DriverCannotImportUnsafeModule is an error that occurs when an usafe module is being imported from a safe one. Test cases: None.
DriverMissingSafeHaskellMode :: !Module -> DriverMessage | DriverMissingSafeHaskellMode is a warning (controlled by the Opt_WarnMissingSafeHaskellMode flag) that occurs when a module is using SafeHaskell features but SafeHaskell mode is not enabled. Test cases: None.
DriverPackageNotTrusted :: !UnitState -> !UnitId -> DriverMessage | DriverPackageNotTrusted is an error that occurs when a package is required to be trusted but it isn't. Test cases: testssafeHaskellcheck/Check01 testssafeHaskellcheck/Check08 testssafeHaskellcheck/Check06 testssafeHaskellcheckpkg01ImpSafeOnly09 testssafeHaskellcheckpkg01ImpSafe03 testssafeHaskellcheckpkg01ImpSafeOnly07 testssafeHaskellcheckpkg01ImpSafeOnly08
DriverCannotImportFromUntrustedPackage :: !UnitState -> !Module -> DriverMessage | DriverCannotImportFromUntrustedPackage is an error that occurs in the context of Safe Haskell when trying to import a module coming from an untrusted package. Test cases: testssafeHaskellcheck/Check09 testssafeHaskellcheckpkg01ImpSafe01 testssafeHaskellcheckpkg01ImpSafe04 testssafeHaskellcheckpkg01ImpSafeOnly03 testssafeHaskellcheckpkg01ImpSafeOnly05 testssafeHaskellflags/SafeFlags17 testssafeHaskellflags/SafeFlags22 testssafeHaskellflags/SafeFlags23 testssafeHaskellghci/p11 testssafeHaskellghci/p12 testssafeHaskellghci/p17 testssafeHaskellghci/p3 testssafeHaskellsafeInfered/UnsafeInfered01 testssafeHaskellsafeInfered/UnsafeInfered02 testssafeHaskellsafeInfered/UnsafeInfered02 testssafeHaskellsafeInfered/UnsafeInfered03 testssafeHaskellsafeInfered/UnsafeInfered05 testssafeHaskellsafeInfered/UnsafeInfered06 testssafeHaskellsafeInfered/UnsafeInfered09 testssafeHaskellsafeInfered/UnsafeInfered10 testssafeHaskellsafeInfered/UnsafeInfered11 testssafeHaskellsafeInfered/UnsafeWarn01 testssafeHaskellsafeInfered/UnsafeWarn03 testssafeHaskellsafeInfered/UnsafeWarn04 testssafeHaskellsafeInfered/UnsafeWarn05 testssafeHaskellunsafeLibs/BadImport01 testssafeHaskellunsafeLibs/BadImport06 testssafeHaskellunsafeLibs/BadImport07 testssafeHaskellunsafeLibs/BadImport08 testssafeHaskellunsafeLibs/BadImport09 testssafeHaskellunsafeLibs/Dep05 testssafeHaskellunsafeLibs/Dep06 testssafeHaskellunsafeLibs/Dep07 testssafeHaskellunsafeLibs/Dep08 testssafeHaskellunsafeLibs/Dep09 testssafeHaskellunsafeLibs/Dep10
DriverRedirectedNoMain :: !ModuleName -> DriverMessage |
DriverHomePackagesNotClosed :: ![UnitId] -> DriverMessage |
DriverInterfaceError :: !IfaceMessage -> DriverMessage |
DriverInconsistentDynFlags :: String -> DriverMessage |
DriverSafeHaskellIgnoredExtension :: !Extension -> DriverMessage |
DriverPackageTrustIgnored :: DriverMessage |
DriverUnrecognisedFlag :: String -> DriverMessage |
DriverDeprecatedFlag :: String -> String -> DriverMessage |

#### Instances

Instances details

Generic DriverMessage # |
Instance details Defined in GHC.Driver.Errors.Types Associated Types
type Rep DriverMessage |
Instance details Defined in GHC.Driver.Errors.Types type Rep DriverMessage = D1 ('MetaData "DriverMessage" "GHC.Driver.Errors.Types" "ghc-lib-parser-9.10.1.20250103-FaHJOkjTl0Y9STmjhYbIHo" 'False) (((((C1 ('MetaCons "DriverUnknownMessage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (UnknownDiagnostic (DiagnosticOpts DriverMessage)))) :+: C1 ('MetaCons "DriverPsHeaderMessage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 PsMessage))) :+: (C1 ('MetaCons "DriverMissingHomeModules" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 UnitId) :*: (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [ModuleName]) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 BuildingCabalPackage))) :+: C1 ('MetaCons "DriverUnknownReexportedModules" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 UnitId) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [ModuleName])))) :+: ((C1 ('MetaCons "DriverUnknownHiddenModules" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 UnitId) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [ModuleName])) :+: C1 ('MetaCons "DriverUnusedPackages" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [(UnitId, PackageName, Version, PackageArg)]))) :+: (C1 ('MetaCons "DriverUnnecessarySourceImports" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 ModuleName)) :+: C1 ('MetaCons "DriverDuplicatedModuleDeclaration" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 Module) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [FilePath]))))) :+: (((C1 ('MetaCons "DriverModuleNotFound" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 ModuleName)) :+: C1 ('MetaCons "DriverFileModuleNameMismatch" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 ModuleName) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 ModuleName))) :+: (C1 ('MetaCons "DriverUnexpectedSignature" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 ModuleName) :*: (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 BuildingCabalPackage) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (GenInstantiations UnitId)))) :+: C1 ('MetaCons "DriverFileNotFound" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 FilePath)))) :+: ((C1 ('MetaCons "DriverStaticPointersNotSupported" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "DriverBackpackModuleNotFound" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 ModuleName))) :+: (C1 ('MetaCons "DriverUserDefinedRuleIgnored" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 (RuleDecl GhcTc))) :+: C1 ('MetaCons "DriverMixedSafetyImport" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 ModuleName)))))) :+: ((((C1 ('MetaCons "DriverCannotLoadInterfaceFile" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 Module)) :+: C1 ('MetaCons "DriverInferredSafeModule" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 Module))) :+: (C1 ('MetaCons "DriverMarkedTrustworthyButInferredSafe" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 Module)) :+: C1 ('MetaCons "DriverInferredSafeImport" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 Module)))) :+: ((C1 ('MetaCons "DriverCannotImportUnsafeModule" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 Module)) :+: C1 ('MetaCons "DriverMissingSafeHaskellMode" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 Module))) :+: (C1 ('MetaCons "DriverPackageNotTrusted" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 UnitState) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 UnitId)) :+: C1 ('MetaCons "DriverCannotImportFromUntrustedPackage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 UnitState) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 Module))))) :+: (((C1 ('MetaCons "DriverRedirectedNoMain" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 ModuleName)) :+: C1 ('MetaCons "DriverHomePackagesNotClosed" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 [UnitId]))) :+: (C1 ('MetaCons "DriverInterfaceError" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 IfaceMessage)) :+: C1 ('MetaCons "DriverInconsistentDynFlags" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 String)))) :+: ((C1 ('MetaCons "DriverSafeHaskellIgnoredExtension" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 Extension)) :+: C1 ('MetaCons "DriverPackageTrustIgnored" 'PrefixI 'False) (U1 :: Type -> Type)) :+: (C1 ('MetaCons "DriverUnrecognisedFlag" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 String)) :+: C1 ('MetaCons "DriverDeprecatedFlag" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 String) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 String)))))))
Methods from :: DriverMessage -> Rep DriverMessage x # to :: Rep DriverMessage x -> DriverMessage #
Diagnostic DriverMessage # |
Instance details Defined in GHC.Driver.Errors.Ppr Associated Types
type DiagnosticOpts DriverMessage |
Instance details Defined in GHC.Driver.Errors.Ppr type DiagnosticOpts DriverMessage = DriverMessageOpts
Methods diagnosticMessage :: DiagnosticOpts DriverMessage -> DriverMessage -> DecoratedSDoc # diagnosticReason :: DriverMessage -> DiagnosticReason # diagnosticHints :: DriverMessage -> [GhcHint] # diagnosticCode :: DriverMessage -> Maybe DiagnosticCode #
type Rep DriverMessage # |
Instance details Defined in GHC.Driver.Errors.Types type Rep DriverMessage = D1 ('MetaData "DriverMessage" "GHC.Driver.Errors.Types" "ghc-lib-parser-9.10.1.20250103-FaHJOkjTl0Y9STmjhYbIHo" 'False) (((((C1 ('MetaCons "DriverUnknownMessage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (UnknownDiagnostic (DiagnosticOpts DriverMessage)))) :+: C1 ('MetaCons "DriverPsHeaderMessage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 PsMessage))) :+: (C1 ('MetaCons "DriverMissingHomeModules" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 UnitId) :*: (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [ModuleName]) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 BuildingCabalPackage))) :+: C1 ('MetaCons "DriverUnknownReexportedModules" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 UnitId) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [ModuleName])))) :+: ((C1 ('MetaCons "DriverUnknownHiddenModules" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 UnitId) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [ModuleName])) :+: C1 ('MetaCons "DriverUnusedPackages" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [(UnitId, PackageName, Version, PackageArg)]))) :+: (C1 ('MetaCons "DriverUnnecessarySourceImports" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 ModuleName)) :+: C1 ('MetaCons "DriverDuplicatedModuleDeclaration" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 Module) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [FilePath]))))) :+: (((C1 ('MetaCons "DriverModuleNotFound" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 ModuleName)) :+: C1 ('MetaCons "DriverFileModuleNameMismatch" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 ModuleName) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 ModuleName))) :+: (C1 ('MetaCons "DriverUnexpectedSignature" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 ModuleName) :*: (S1 ('MetaSel ('Nothing :: Maybe Symbol) 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type DiagnosticOpts DriverMessage # |
Instance details Defined in GHC.Driver.Errors.Ppr type DiagnosticOpts DriverMessage = DriverMessageOpts

data DriverMessageOpts #

Constructors

DriverMessageOpts |
Fields psDiagnosticOpts :: DiagnosticOpts PsMessage ifaceDiagnosticOpts :: DiagnosticOpts IfaceMessage

#### Instances

Instances details

HasDefaultDiagnosticOpts DriverMessageOpts # |
Instance details Defined in GHC.Driver.Errors.Ppr Methods defaultOpts :: DriverMessageOpts #

type DriverMessages = Messages DriverMessage #

A collection of driver messages

data PsMessage #

Constructors

PsHeaderMessage !PsHeaderMessage | A group of parser messages emitted in `Header`. See Note [Messages from GHC.Parser.Header].

#### Instances

Instances details

Generic PsMessage # |
Instance details Defined in GHC.Parser.Errors.Types Associated Types
type Rep PsMessage |
Instance details Defined in GHC.Parser.Errors.Types type Rep PsMessage = D1 ('MetaData "PsMessage" "GHC.Parser.Errors.Types" "ghc-lib-parser-9.10.1.20250103-FaHJOkjTl0Y9STmjhYbIHo" 'False) ((((((C1 ('MetaCons "PsUnknownMessage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (UnknownDiagnostic (DiagnosticOpts PsMessage)))) :+: (C1 ('MetaCons "PsHeaderMessage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 PsHeaderMessage)) :+: C1 ('MetaCons "PsWarnBidirectionalFormatChars" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (NonEmpty (PsLoc, Char, String)))))) :+: ((C1 ('MetaCons "PsWarnTab" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 Word)) :+: C1 ('MetaCons "PsWarnTransitionalLayout" 'PrefixI 'False) (S1 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Methods from :: PsMessage -> Rep PsMessage x # to :: Rep PsMessage x -> PsMessage #
Diagnostic PsMessage # |
Instance details Defined in GHC.Parser.Errors.Ppr Associated Types
type DiagnosticOpts PsMessage |
Instance details Defined in GHC.Parser.Errors.Ppr type DiagnosticOpts PsMessage = NoDiagnosticOpts
Methods diagnosticMessage :: DiagnosticOpts PsMessage -> PsMessage -> DecoratedSDoc # diagnosticReason :: PsMessage -> DiagnosticReason # diagnosticHints :: PsMessage -> [GhcHint] # diagnosticCode :: PsMessage -> Maybe DiagnosticCode #
type Rep PsMessage # |
Instance details Defined in GHC.Parser.Errors.Types type Rep PsMessage = D1 ('MetaData "PsMessage" "GHC.Parser.Errors.Types" "ghc-lib-parser-9.10.1.20250103-FaHJOkjTl0Y9STmjhYbIHo" 'False) ((((((C1 ('MetaCons "PsUnknownMessage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (UnknownDiagnostic (DiagnosticOpts PsMessage)))) :+: (C1 ('MetaCons "PsHeaderMessage" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 PsHeaderMessage)) :+: C1 ('MetaCons "PsWarnBidirectionalFormatChars" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (NonEmpty (PsLoc, Char, String)))))) :+: ((C1 ('MetaCons "PsWarnTab" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 Word)) :+: C1 ('MetaCons "PsWarnTransitionalLayout" 'PrefixI 'False) (S1 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"PsErrNotADataCon" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 RdrName)) :+: C1 ('MetaCons "PsErrRecordSyntaxInPatSynDecl" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 (LPat GhcPs)))))))) :+: ((((C1 ('MetaCons "PsErrEmptyWhereInPatSynDecl" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 RdrName)) :+: (C1 ('MetaCons "PsErrInvalidWhereBindInPatSynDecl" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 RdrName) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 (HsDecl GhcPs))) :+: C1 ('MetaCons "PsErrNoSingleWhereBindInPatSynDecl" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 RdrName) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 (HsDecl GhcPs))))) :+: ((C1 ('MetaCons "PsErrDeclSpliceNotAtTopLevel" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 (SpliceDecl GhcPs))) :+: C1 ('MetaCons "PsErrInferredTypeVarNotAllowed" 'PrefixI 'False) (U1 :: Type -> Type)) :+: (C1 ('MetaCons "PsErrMultipleNamesInStandaloneKindSignature" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [LIdP GhcPs])) :+: C1 ('MetaCons "PsErrIllegalImportBundleForm" 'PrefixI 'False) (U1 :: Type -> Type)))) :+: ((C1 ('MetaCons "PsErrIllegalRoleName" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 FastString) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [Role])) :+: (C1 ('MetaCons "PsErrInvalidTypeSignature" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 PsInvalidTypeSignature) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 (LHsExpr GhcPs))) :+: C1 ('MetaCons "PsErrUnexpectedTypeInDecl" 'PrefixI 'False) ((S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 (LHsType GhcPs)) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 SDoc)) :*: (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 RdrName) :*: (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [LHsTypeArg GhcPs]) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 SDoc)))))) :+: ((C1 ('MetaCons "PsErrExpectedHyphen" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "PsErrSpaceInSCC" 'PrefixI 'False) (U1 :: Type -> Type)) :+: (C1 ('MetaCons "PsErrEmptyDoubleQuotes" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 Bool)) :+: C1 ('MetaCons "PsErrInvalidPackageName" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 FastString)))))) :+: (((C1 ('MetaCons "PsErrInvalidRuleActivationMarker" 'PrefixI 'False) (U1 :: Type -> Type) :+: (C1 ('MetaCons "PsErrLinearFunction" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "PsErrMultiWayIf" 'PrefixI 'False) (U1 :: Type -> Type))) :+: ((C1 ('MetaCons "PsErrExplicitForall" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 Bool)) :+: C1 ('MetaCons "PsErrIllegalQualifiedDo" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 SDoc))) :+: (C1 ('MetaCons "PsErrCmmParser" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 CmmParserError)) :+: C1 ('MetaCons "PsErrIllegalTraditionalRecordSyntax" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 SDoc))))) :+: (((C1 ('MetaCons "PsErrParseErrorInCmd" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 SDoc)) :+: C1 ('MetaCons "PsErrInPat" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 (PatBuilder GhcPs)) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 PsErrInPatDetails))) :+: (C1 ('MetaCons "PsErrParseRightOpSectionInPat" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 RdrName) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 (PatBuilder GhcPs))) :+: C1 ('MetaCons "PsErrIllegalGadtRecordMultiplicity" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 (HsArrow GhcPs))))) :+: ((C1 ('MetaCons "PsErrInvalidCApiImport" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "PsErrMultipleConForNewtype" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 RdrName) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 Int))) :+: (C1 ('MetaCons "PsErrUnicodeCharLooksLike" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Char) :*: (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Char) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 String))) :+: C1 ('MetaCons "PsErrInvalidPun" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'SourceStrict 'DecidedStrict) (Rec0 PsErrPunDetails)))))))))
type DiagnosticOpts PsMessage # |
Instance details Defined in GHC.Parser.Errors.Ppr type DiagnosticOpts PsMessage = NoDiagnosticOpts

type WarningMessages = Messages GhcMessage #

A collection of warning messages. INVARIANT: Each `GhcMessage` in the collection should have `SevWarning` severity.

type ErrorMessages = Messages GhcMessage #

A collection of error messages. INVARIANT: Each `GhcMessage` in the collection should have `SevError` severity.

type WarnMsg = MsgEnvelope GhcMessage #

A single warning message. INVARIANT: It must have `SevWarning` severity.

# Constructors

ghcUnknownMessage :: (DiagnosticOpts a ~ NoDiagnosticOpts, Diagnostic a, Typeable a) => a -> GhcMessage #

Creates a new `GhcMessage` out of any diagnostic. This function is also provided to ease the integration of #18516 by allowing diagnostics to be wrapped into the general (but structured) `GhcMessage` type, so that the conversion can happen gradually. This function should not be needed within GHC, as it would typically be used by plugin or library authors (see comment for the `GhcUnknownMessage` type constructor)

# Utility functions

hoistTcRnMessage :: Monad m => m (Messages TcRnMessage, a) -> m (Messages GhcMessage, a) #

Abstracts away the frequent pattern where we are calling `ioMsgMaybe` on the result of 'IO (Messages TcRnMessage, a)'.

hoistDsMessage :: Monad m => m (Messages DsMessage, a) -> m (Messages GhcMessage, a) #

Abstracts away the frequent pattern where we are calling `ioMsgMaybe` on the result of 'IO (Messages DsMessage, a)'.

checkBuildingCabalPackage :: DynFlags -> BuildingCabalPackage #

Checks if we are building a cabal package by consulting the `DynFlags`.