ghc-9.6.3: The GHC API

Safe Haskell | Safe-Inferred
Language | Haskell2010

GHC.Driver.Pipeline

Contents

- Run a series of compilation steps in a pipeline, for a
- Interfaces for the compilation manager (interpreted/batch-mode)
- Linking
- PipeEnv
- Running individual phases
- Constructing Pipelines
- Default method of running a pipeline

Synopsis

- oneShot :: HscEnv -> StopPhase -> [(String, Maybe Phase)] -> IO ()
- compileFile :: HscEnv -> StopPhase -> (FilePath, Maybe Phase) -> IO (Maybe FilePath)
- preprocess :: HscEnv -> FilePath -> Maybe InputFileBuffer -> Maybe Phase -> IO (Either DriverMessages (DynFlags, FilePath))
- compileOne :: HscEnv -> ModSummary -> Int -> Int -> Maybe ModIface -> HomeModLinkable -> IO HomeModInfo
- compileOne' :: Maybe Messager -> HscEnv -> ModSummary -> Int -> Int -> Maybe ModIface -> HomeModLinkable -> IO HomeModInfo
- compileForeign :: HscEnv -> ForeignSrcLang -> FilePath -> IO FilePath
- compileEmptyStub :: DynFlags -> HscEnv -> FilePath -> ModLocation -> ModuleName -> IO ()
- link :: GhcLink -> Logger -> TmpFs -> Hooks -> DynFlags -> UnitEnv -> Bool -> Maybe (RecompileRequired -> IO ()) -> HomePackageTable -> IO SuccessFlag
- linkingNeeded :: Logger -> DynFlags -> UnitEnv -> Bool -> [Linkable] -> [UnitId] -> IO RecompileRequired
- checkLinkInfo :: Logger -> DynFlags -> UnitEnv -> [UnitId] -> FilePath -> IO Bool
- data PipeEnv = PipeEnv {
  - stop_phase :: StopPhase
  - src_filename :: String
  - src_basename :: String
  - src_suffix :: String
  - start_phase :: Phase
  - output_spec :: PipelineOutput
  }
- mkPipeEnv :: StopPhase -> FilePath -> Maybe Phase -> PipelineOutput -> PipeEnv
- phaseOutputFilenameNew :: Phase -> PipeEnv -> HscEnv -> Maybe ModLocation -> IO FilePath
- data TPhase res where
  - T_Unlit :: PipeEnv -> HscEnv -> FilePath -> TPhase FilePath
  - T_FileArgs :: HscEnv -> FilePath -> TPhase (DynFlags, Messages PsMessage, [Warn])
  - T_Cpp :: PipeEnv -> HscEnv -> FilePath -> TPhase FilePath
  - T_HsPp :: PipeEnv -> HscEnv -> FilePath -> FilePath -> TPhase FilePath
  - T_HscRecomp :: PipeEnv -> HscEnv -> FilePath -> HscSource -> TPhase (HscEnv, ModSummary, HscRecompStatus)
  - T_Hsc :: HscEnv -> ModSummary -> TPhase (FrontendResult, Messages GhcMessage)
  - T_HscPostTc :: HscEnv -> ModSummary -> FrontendResult -> Messages GhcMessage -> Maybe Fingerprint -> TPhase HscBackendAction
  - T_HscBackend :: PipeEnv -> HscEnv -> ModuleName -> HscSource -> ModLocation -> HscBackendAction -> TPhase ([FilePath], ModIface, HomeModLinkable, FilePath)
  - T_CmmCpp :: PipeEnv -> HscEnv -> FilePath -> TPhase FilePath
  - T_Cmm :: PipeEnv -> HscEnv -> FilePath -> TPhase ([FilePath], FilePath)
  - T_Cc :: Phase -> PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> TPhase FilePath
  - T_As :: Bool -> PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> TPhase FilePath
  - T_Js :: PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> TPhase FilePath
  - T_ForeignJs :: PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> TPhase FilePath
  - T_LlvmOpt :: PipeEnv -> HscEnv -> FilePath -> TPhase FilePath
  - T_LlvmLlc :: PipeEnv -> HscEnv -> FilePath -> TPhase FilePath
  - T_LlvmMangle :: PipeEnv -> HscEnv -> FilePath -> TPhase FilePath
  - T_MergeForeign :: PipeEnv -> HscEnv -> FilePath -> [FilePath] -> TPhase FilePath
- runPhase :: TPhase out -> IO out
- hscPostBackendPhase :: HscSource -> Backend -> Phase
- type TPipelineClass (f :: Type -> Type) (m :: Type -> Type) = (Functor m, MonadIO m, Applicative m, Monad m, MonadUse f m)
- class MonadUse f m where
  - use :: f a -> m a
- preprocessPipeline :: P m => PipeEnv -> HscEnv -> FilePath -> m (DynFlags, FilePath)
- fullPipeline :: P m => PipeEnv -> HscEnv -> FilePath -> HscSource -> m (ModIface, HomeModLinkable)
- hscPipeline :: P m => PipeEnv -> (HscEnv, ModSummary, HscRecompStatus) -> m (ModIface, HomeModLinkable)
- hscBackendPipeline :: P m => PipeEnv -> HscEnv -> ModSummary -> HscBackendAction -> m (ModIface, HomeModLinkable)
- hscPostBackendPipeline :: P m => PipeEnv -> HscEnv -> HscSource -> Backend -> Maybe ModLocation -> FilePath -> m (Maybe FilePath)
- hscGenBackendPipeline :: P m => PipeEnv -> HscEnv -> ModSummary -> HscBackendAction -> m (ModIface, HomeModLinkable)
- asPipeline :: P m => Bool -> PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> m (Maybe ObjFile)
- viaCPipeline :: P m => Phase -> PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> m (Maybe FilePath)
- cmmCppPipeline :: P m => PipeEnv -> HscEnv -> FilePath -> m (Maybe FilePath)
- cmmPipeline :: P m => PipeEnv -> HscEnv -> FilePath -> m (Maybe FilePath)
- jsPipeline :: P m => PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> m FilePath
- llvmPipeline :: P m => PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> m (Maybe FilePath)
- llvmLlcPipeline :: P m => PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> m (Maybe FilePath)
- llvmManglePipeline :: P m => PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> m (Maybe FilePath)
- pipelineStart :: P m => PipeEnv -> HscEnv -> FilePath -> Maybe Phase -> m (Maybe FilePath)
- runPipeline :: Hooks -> HookedUse a -> IO a

# Run a series of compilation steps in a pipeline, for a

oneShot :: HscEnv -> StopPhase -> [(String, Maybe Phase)] -> IO () Source #

compileFile :: HscEnv -> StopPhase -> (FilePath, Maybe Phase) -> IO (Maybe FilePath) Source #

# Interfaces for the compilation manager (interpreted/batch-mode)

preprocess Source #

Arguments

:: HscEnv |
-> FilePath | input filename
-> Maybe InputFileBuffer | optional buffer to use instead of reading the input file
-> Maybe Phase | starting phase
-> IO (Either DriverMessages (DynFlags, FilePath)) |

Just preprocess a file, put the result in a temp. file (used by the compilation manager during the summary phase).

We return the augmented DynFlags, because they contain the result of slurping in the OPTIONS pragmas

compileOne Source #

Arguments

:: HscEnv |
-> ModSummary | summary for module being compiled
-> Int | module N ...
-> Int | ... of M
-> Maybe ModIface | old interface, if we have one
-> HomeModLinkable | old linkable, if we have one
-> IO HomeModInfo | the complete HomeModInfo, if successful

Compile

Compile a single module, under the control of the compilation manager.

This is the interface between the compilation manager and the compiler proper (hsc), where we deal with tedious details like reading the OPTIONS pragma from the source file, converting the C or assembly that GHC produces into an object file, and compiling FFI stub files.

NB. No old interface can also mean that the source has changed.

compileOne' Source #

Arguments

:: Maybe Messager |
-> HscEnv |
-> ModSummary | summary for module being compiled
-> Int | module N ...
-> Int | ... of M
-> Maybe ModIface | old interface, if we have one
-> HomeModLinkable |
-> IO HomeModInfo | the complete HomeModInfo, if successful

compileForeign :: HscEnv -> ForeignSrcLang -> FilePath -> IO FilePath Source #

compileEmptyStub :: DynFlags -> HscEnv -> FilePath -> ModLocation -> ModuleName -> IO () Source #

# Linking

link Source #

Arguments

:: GhcLink | interactive or batch
-> Logger | Logger
-> TmpFs |
-> Hooks |
-> DynFlags | dynamic flags
-> UnitEnv | unit environment
-> Bool | attempt linking in batch mode?
-> Maybe (RecompileRequired -> IO ()) |
-> HomePackageTable | what to link
-> IO SuccessFlag |

linkingNeeded :: Logger -> DynFlags -> UnitEnv -> Bool -> [Linkable] -> [UnitId] -> IO RecompileRequired Source #

checkLinkInfo :: Logger -> DynFlags -> UnitEnv -> [UnitId] -> FilePath -> IO Bool Source #

# PipeEnv

data PipeEnv Source #

Constructors

PipeEnv |

Fields

- stop_phase :: StopPhase

  Stop just after this phase

- src_filename :: String

  basename of original input source

- src_basename :: String

  basename of original input source

- src_suffix :: String

  its extension

- start_phase :: Phase
- output_spec :: PipelineOutput

  says where to put the pipeline output

mkPipeEnv :: StopPhase -> FilePath -> Maybe Phase -> PipelineOutput -> PipeEnv Source #

phaseOutputFilenameNew Source #

Arguments

:: Phase | The next phase
-> PipeEnv |
-> HscEnv |
-> Maybe ModLocation | A ModLocation, if we are compiling a Haskell source file
-> IO FilePath |

# Running individual phases

data TPhase res where Source #

Constructors

T_Unlit :: PipeEnv -> HscEnv -> FilePath -> TPhase FilePath |
T_FileArgs :: HscEnv -> FilePath -> TPhase (DynFlags, Messages PsMessage, [Warn]) |
T_Cpp :: PipeEnv -> HscEnv -> FilePath -> TPhase FilePath |
T_HsPp :: PipeEnv -> HscEnv -> FilePath -> FilePath -> TPhase FilePath |
T_HscRecomp :: PipeEnv -> HscEnv -> FilePath -> HscSource -> TPhase (HscEnv, ModSummary, HscRecompStatus) |
T_Hsc :: HscEnv -> ModSummary -> TPhase (FrontendResult, Messages GhcMessage) |
T_HscPostTc :: HscEnv -> ModSummary -> FrontendResult -> Messages GhcMessage -> Maybe Fingerprint -> TPhase HscBackendAction |
T_HscBackend :: PipeEnv -> HscEnv -> ModuleName -> HscSource -> ModLocation -> HscBackendAction -> TPhase ([FilePath], ModIface, HomeModLinkable, FilePath) |
T_CmmCpp :: PipeEnv -> HscEnv -> FilePath -> TPhase FilePath |
T_Cmm :: PipeEnv -> HscEnv -> FilePath -> TPhase ([FilePath], FilePath) |
T_Cc :: Phase -> PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> TPhase FilePath |
T_As :: Bool -> PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> TPhase FilePath |
T_Js :: PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> TPhase FilePath |
T_ForeignJs :: PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> TPhase FilePath |
T_LlvmOpt :: PipeEnv -> HscEnv -> FilePath -> TPhase FilePath |
T_LlvmLlc :: PipeEnv -> HscEnv -> FilePath -> TPhase FilePath |
T_LlvmMangle :: PipeEnv -> HscEnv -> FilePath -> TPhase FilePath |
T_MergeForeign :: PipeEnv -> HscEnv -> FilePath -> [FilePath] -> TPhase FilePath |

#### Instances

Instances details

MonadUse TPhase HookedUse Source # |
Instance details Defined in GHC.Driver.Pipeline.Execute Methods use :: TPhase a -> HookedUse a Source #

runPhase :: TPhase out -> IO out Source #

Default interpretation of each phase, in terms of IO.

hscPostBackendPhase :: HscSource -> Backend -> Phase Source #

What phase to run after one of the backend code generators has run

# Constructing Pipelines

type TPipelineClass (f :: Type -> Type) (m :: Type -> Type) = (Functor m, MonadIO m, Applicative m, Monad m, MonadUse f m) Source #

class MonadUse f m where Source #

Lift a `f` action into an `m` action.

Methods

use :: f a -> m a Source #

#### Instances

Instances details

MonadUse TPhase HookedUse Source # |
Instance details Defined in GHC.Driver.Pipeline.Execute Methods use :: TPhase a -> HookedUse a Source #

preprocessPipeline :: P m => PipeEnv -> HscEnv -> FilePath -> m (DynFlags, FilePath) Source #

The preprocessor pipeline

fullPipeline :: P m => PipeEnv -> HscEnv -> FilePath -> HscSource -> m (ModIface, HomeModLinkable) Source #

The complete compilation pipeline, from start to finish

hscPipeline :: P m => PipeEnv -> (HscEnv, ModSummary, HscRecompStatus) -> m (ModIface, HomeModLinkable) Source #

Everything after preprocess

hscBackendPipeline :: P m => PipeEnv -> HscEnv -> ModSummary -> HscBackendAction -> m (ModIface, HomeModLinkable) Source #

hscPostBackendPipeline :: P m => PipeEnv -> HscEnv -> HscSource -> Backend -> Maybe ModLocation -> FilePath -> m (Maybe FilePath) Source #

hscGenBackendPipeline :: P m => PipeEnv -> HscEnv -> ModSummary -> HscBackendAction -> m (ModIface, HomeModLinkable) Source #

asPipeline :: P m => Bool -> PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> m (Maybe ObjFile) Source #

viaCPipeline :: P m => Phase -> PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> m (Maybe FilePath) Source #

cmmCppPipeline :: P m => PipeEnv -> HscEnv -> FilePath -> m (Maybe FilePath) Source #

cmmPipeline :: P m => PipeEnv -> HscEnv -> FilePath -> m (Maybe FilePath) Source #

jsPipeline :: P m => PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> m FilePath Source #

llvmPipeline :: P m => PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> m (Maybe FilePath) Source #

llvmLlcPipeline :: P m => PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> m (Maybe FilePath) Source #

llvmManglePipeline :: P m => PipeEnv -> HscEnv -> Maybe ModLocation -> FilePath -> m (Maybe FilePath) Source #

pipelineStart :: P m => PipeEnv -> HscEnv -> FilePath -> Maybe Phase -> m (Maybe FilePath) Source #

# Default method of running a pipeline

runPipeline :: Hooks -> HookedUse a -> IO a Source #

The default mechanism to run a pipeline, see Note [The Pipeline Monad]