ghc-8.0.1: The GHC API

Safe HaskellNone
LanguageHaskell2010

Module

Contents

Synopsis

The ModuleName type

data ModuleName Source #

A ModuleName is essentially a simple string, e.g. Data.List.

Instances

Eq ModuleName # 
Data ModuleName # 

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> ModuleName -> c ModuleName Source #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c ModuleName Source #

toConstr :: ModuleName -> Constr Source #

dataTypeOf :: ModuleName -> DataType Source #

dataCast1 :: Typeable (* -> *) t => (forall d. Data d => c (t d)) -> Maybe (c ModuleName) Source #

dataCast2 :: Typeable (* -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c ModuleName) Source #

gmapT :: (forall b. Data b => b -> b) -> ModuleName -> ModuleName Source #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> ModuleName -> r Source #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> ModuleName -> r Source #

gmapQ :: (forall d. Data d => d -> u) -> ModuleName -> [u] Source #

gmapQi :: Int -> (forall d. Data d => d -> u) -> ModuleName -> u Source #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> ModuleName -> m ModuleName Source #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> ModuleName -> m ModuleName Source #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> ModuleName -> m ModuleName Source #

Ord ModuleName # 
BinaryStringRep ModuleName # 
Outputable ModuleName # 
Uniquable ModuleName # 
Binary ModuleName # 

moduleNameSlashes :: ModuleName -> String Source #

Returns the string version of the module name, with dots replaced by slashes.

moduleNameColons :: ModuleName -> String Source #

Returns the string version of the module name, with dots replaced by underscores.

moduleStableString :: Module -> String Source #

Get a string representation of a Module that's unique and stable across recompilations. eg. "$aeson_70dylHtv1FFGeai1IoxcQr$Data.Aeson.Types.Internal"

stableModuleNameCmp :: ModuleName -> ModuleName -> Ordering Source #

Compares module names lexically, rather than by their Uniques

The UnitId type

data UnitId Source #

A string which uniquely identifies a package. For wired-in packages, it is just the package name, but for user compiled packages, it is a hash. ToDo: when the key is a hash, we can do more clever things than store the hex representation and hash-cons those strings.

Instances

Eq UnitId # 

Methods

(==) :: UnitId -> UnitId -> Bool #

(/=) :: UnitId -> UnitId -> Bool #

Data UnitId # 

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> UnitId -> c UnitId Source #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c UnitId Source #

toConstr :: UnitId -> Constr Source #

dataTypeOf :: UnitId -> DataType Source #

dataCast1 :: Typeable (* -> *) t => (forall d. Data d => c (t d)) -> Maybe (c UnitId) Source #

dataCast2 :: Typeable (* -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c UnitId) Source #

gmapT :: (forall b. Data b => b -> b) -> UnitId -> UnitId Source #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> UnitId -> r Source #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> UnitId -> r Source #

gmapQ :: (forall d. Data d => d -> u) -> UnitId -> [u] Source #

gmapQi :: Int -> (forall d. Data d => d -> u) -> UnitId -> u Source #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> UnitId -> m UnitId Source #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> UnitId -> m UnitId Source #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> UnitId -> m UnitId Source #

Ord UnitId # 
BinaryStringRep UnitId # 
Outputable UnitId # 
Uniquable UnitId # 
Binary UnitId # 

stableUnitIdCmp :: UnitId -> UnitId -> Ordering Source #

Compares package ids lexically, rather than by their Uniques

Wired-in UnitIds

Certain packages are known to the compiler, in that we know about certain entities that reside in these packages, and the compiler needs to declare static Modules and Names that refer to these packages. Hence the wired-in packages can't include version numbers, since we don't want to bake the version numbers of these packages into GHC.

So here's the plan. Wired-in packages are still versioned as normal in the packages database, and you can still have multiple versions of them installed. However, for each invocation of GHC, only a single instance of each wired-in package will be recognised (the desired one is selected via -package/-hide-package), and GHC will use the unversioned UnitId below when referring to it, including in .hi files and object file symbols. Unselected versions of wired-in packages will be ignored, as will any other package that depends directly or indirectly on it (much as if you had used -ignore-package).

mainUnitId :: UnitId Source #

This is the package Id for the current program. It is the default package Id if you don't specify a package name. We don't add this prefix to symbol names, since there can be only one main package per program.

holeUnitId :: UnitId Source #

This is a fake package id used to provide identities to any un-implemented signatures. The set of hole identities is global over an entire compilation.

The Module type

data Module Source #

A Module is a pair of a UnitId and a ModuleName.

Constructors

Module 

Instances

Eq Module # 

Methods

(==) :: Module -> Module -> Bool #

(/=) :: Module -> Module -> Bool #

Data Module # 

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Module -> c Module Source #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Module Source #

toConstr :: Module -> Constr Source #

dataTypeOf :: Module -> DataType Source #

dataCast1 :: Typeable (* -> *) t => (forall d. Data d => c (t d)) -> Maybe (c Module) Source #

dataCast2 :: Typeable (* -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Module) Source #

gmapT :: (forall b. Data b => b -> b) -> Module -> Module Source #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Module -> r Source #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Module -> r Source #

gmapQ :: (forall d. Data d => d -> u) -> Module -> [u] Source #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Module -> u Source #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Module -> m Module Source #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Module -> m Module Source #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Module -> m Module Source #

Ord Module # 
Outputable Module # 
Uniquable Module # 
Binary Module # 

stableModuleCmp :: Module -> Module -> Ordering Source #

This gives a stable ordering, as opposed to the Ord instance which gives an ordering based on the Uniques of the components, which may not be stable from run to run of the compiler.

class HasModule m where Source #

Minimal complete definition

getModule

Methods

getModule :: m Module Source #

class ContainsModule t where Source #

Minimal complete definition

extractModule

Methods

extractModule :: t -> Module Source #

The ModuleLocation type

data ModLocation Source #

Where a module lives on the file system: the actual locations of the .hs, .hi and .o files, if we have them

addBootSuffix :: FilePath -> FilePath Source #

Add the -boot suffix to .hs, .hi and .o files

addBootSuffix_maybe :: Bool -> FilePath -> FilePath Source #

Add the -boot suffix if the Bool argument is True

addBootSuffixLocn :: ModLocation -> ModLocation Source #

Add the -boot suffix to all file paths associated with the module

Module mappings

data ModuleEnv elt Source #

A map keyed off of Modules

extendModuleEnvList_C :: (a -> a -> a) -> ModuleEnv a -> [(Module, a)] -> ModuleEnv a Source #

plusModuleEnv_C :: (a -> a -> a) -> ModuleEnv a -> ModuleEnv a -> ModuleEnv a Source #

mapModuleEnv :: (a -> b) -> ModuleEnv a -> ModuleEnv b Source #

foldModuleEnv :: (a -> b -> b) -> b -> ModuleEnv a -> b Source #

extendModuleEnvWith :: (a -> a -> a) -> ModuleEnv a -> Module -> a -> ModuleEnv a Source #

ModuleName mappings

type ModuleNameEnv elt = UniqFM elt Source #

A map keyed off of ModuleNames (actually, their Uniques)

Sets of Modules

type ModuleSet = Map Module () Source #

A set of Modules