Safe Haskell	None
Language	Haskell98

DriverPipeline

Synopsis

Documentation

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

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

linkBinary :: DynFlags -> [FilePath] -> [PackageId] -> IO () Source

preprocess Source

Arguments

:: HscEnv
-> (FilePath, Maybe Phase)	filename and starting phase
-> IO (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
-> Maybe Linkable	old linkable, if we have one
-> SourceModified
-> 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 TcGblEnv
-> Maybe Messager
-> HscEnv
-> ModSummary	summary for module being compiled
-> Int	module N ...
-> Int	... of M
-> Maybe ModIface	old interface, if we have one
-> Maybe Linkable	old linkable, if we have one
-> SourceModified
-> IO HomeModInfo	the complete HomeModInfo, if successful

link :: GhcLink -> DynFlags -> Bool -> HomePackageTable -> IO SuccessFlag Source

data PhasePlus Source

Constructors

RealPhase Phase
HscOut HscSource ModuleName HscStatus

Instances

Outputable PhasePlus

newtype CompPipeline a Source

Constructors

P
Fields unP :: PipeEnv -> PipeState -> IO (PipeState, a)

Instances

Monad CompPipeline
Functor CompPipeline
Applicative CompPipeline
MonadIO CompPipeline
HasDynFlags CompPipeline

data PipeEnv Source

Constructors

PipeEnv
Fields pe_isHaskellishFile :: Bool stop_phase :: Phase Stop just before this phase src_filename :: String basename of original input source src_basename :: String basename of original input source src_suffix :: String its extension output_spec :: PipelineOutput says where to put the pipeline output

data PipeState Source

Constructors

PipeState

Fields

hsc_env :: HscEnv: only the DynFlags change in the HscEnv. The DynFlags change at various points, for example when we read the OPTIONS_GHC pragmas in the Cpp phase.
maybe_loc :: Maybe ModLocation: the ModLocation. This is discovered during compilation, in the Hsc phase where we read the module header.
maybe_stub_o :: Maybe FilePath: the stub object. This is set by the Hsc phase if a stub object was created. The stub object will be joined with the main compilation object using "ld -r" at the end.

phaseOutputFilename :: Phase -> CompPipeline FilePath Source

getPipeState :: CompPipeline PipeState Source

getPipeEnv :: CompPipeline PipeEnv Source

hscPostBackendPhase :: DynFlags -> HscSource -> HscTarget -> Phase Source

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

getLocation :: HscSource -> ModuleName -> CompPipeline ModLocation Source

setModLocation :: ModLocation -> CompPipeline () Source

setDynFlags :: DynFlags -> CompPipeline () Source

runPhase Source

Arguments

:: PhasePlus	Run this phase
-> FilePath	name of the input file
-> DynFlags	for convenience, we pass the current dflags in
-> CompPipeline (PhasePlus, FilePath)

Each phase in the pipeline returns the next phase to execute, and the name of the file in which the output was placed.

We must do things dynamically this way, because we often don't know what the rest of the phases will be until part-way through the compilation: for example, an {--} at the beginning of a source file can change the latter stages of the pipeline from taking the LLVM route to using the native code generator.

exeFileName :: Bool -> DynFlags -> FilePath Source

mkExtraObjToLinkIntoBinary :: DynFlags -> IO FilePath Source

mkNoteObjsToLinkIntoBinary :: DynFlags -> [PackageId] -> IO [FilePath] Source

maybeCreateManifest :: DynFlags -> FilePath -> IO [FilePath] Source

runPhase_MoveBinary :: DynFlags -> FilePath -> IO Bool Source

linkingNeeded :: DynFlags -> Bool -> [Linkable] -> [PackageId] -> IO Bool Source

checkLinkInfo :: DynFlags -> [PackageId] -> FilePath -> IO Bool Source