ghc-7.0.3: The GHC API

Module

Contents

- The ModuleName type
- The PackageId type
- Wired-in PackageIds
- The Module type
- The ModuleLocation type
- Module mappings
- ModuleName mappings
- Sets of Modules

Synopsis

- data ModuleName
- pprModuleName :: ModuleName -> SDoc
- moduleNameFS :: ModuleName -> FastString
- moduleNameString :: ModuleName -> String
- moduleNameSlashes :: ModuleName -> String
- mkModuleName :: String -> ModuleName
- mkModuleNameFS :: FastString -> ModuleName
- stableModuleNameCmp :: ModuleName -> ModuleName -> Ordering
- data PackageId
- fsToPackageId :: FastString -> PackageId
- packageIdFS :: PackageId -> FastString
- stringToPackageId :: String -> PackageId
- packageIdString :: PackageId -> String
- stablePackageIdCmp :: PackageId -> PackageId -> Ordering
- primPackageId :: PackageId
- integerPackageId :: PackageId
- basePackageId :: PackageId
- rtsPackageId :: PackageId
- thPackageId :: PackageId
- dphSeqPackageId :: PackageId
- dphParPackageId :: PackageId
- mainPackageId :: PackageId
- data Module
- modulePackageId :: Module -> PackageId
- moduleName :: Module -> ModuleName
- pprModule :: Module -> SDoc
- mkModule :: PackageId -> ModuleName -> Module
- stableModuleCmp :: Module -> Module -> Ordering
- data ModLocation = ModLocation {
  - ml_hs_file :: Maybe FilePath
  - ml_hi_file :: FilePath
  - ml_obj_file :: FilePath
  }
- addBootSuffix :: FilePath -> FilePath
- addBootSuffix_maybe :: Bool -> FilePath -> FilePath
- addBootSuffixLocn :: ModLocation -> ModLocation
- data ModuleEnv elt
- elemModuleEnv :: Module -> ModuleEnv a -> Bool
- extendModuleEnv :: ModuleEnv a -> Module -> a -> ModuleEnv a
- extendModuleEnvList :: ModuleEnv a -> [(Module, a)] -> ModuleEnv a
- extendModuleEnvList_C :: (a -> a -> a) -> ModuleEnv a -> [(Module, a)] -> ModuleEnv a
- plusModuleEnv_C :: (a -> a -> a) -> ModuleEnv a -> ModuleEnv a -> ModuleEnv a
- delModuleEnvList :: ModuleEnv a -> [Module] -> ModuleEnv a
- delModuleEnv :: ModuleEnv a -> Module -> ModuleEnv a
- plusModuleEnv :: ModuleEnv a -> ModuleEnv a -> ModuleEnv a
- lookupModuleEnv :: ModuleEnv a -> Module -> Maybe a
- lookupWithDefaultModuleEnv :: ModuleEnv a -> a -> Module -> a
- mapModuleEnv :: (a -> b) -> ModuleEnv a -> ModuleEnv b
- mkModuleEnv :: [(Module, a)] -> ModuleEnv a
- emptyModuleEnv :: ModuleEnv a
- moduleEnvKeys :: ModuleEnv a -> [Module]
- moduleEnvElts :: ModuleEnv a -> [a]
- moduleEnvToList :: ModuleEnv a -> [(Module, a)]
- unitModuleEnv :: Module -> a -> ModuleEnv a
- isEmptyModuleEnv :: ModuleEnv a -> Bool
- foldModuleEnv :: (a -> b -> b) -> b -> ModuleEnv a -> b
- extendModuleEnvWith :: (a -> a -> a) -> ModuleEnv a -> Module -> a -> ModuleEnv a
- filterModuleEnv :: (Module -> a -> Bool) -> ModuleEnv a -> ModuleEnv a
- type ModuleNameEnv elt = UniqFM elt
- type ModuleSet = Map Module ()
- emptyModuleSet :: ModuleSet
- mkModuleSet :: [Module] -> ModuleSet
- moduleSetElts :: ModuleSet -> [Module]
- extendModuleSet :: ModuleSet -> Module -> ModuleSet
- elemModuleSet :: Module -> ModuleSet -> Bool

# The ModuleName type

data ModuleName Source

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

Instances

Eq ModuleName |
Data ModuleName |
Ord ModuleName |
Typeable ModuleName |
Outputable ModuleName |
Uniquable ModuleName |
Binary ModuleName |

pprModuleName :: ModuleName -> SDoc Source

moduleNameFS :: ModuleName -> FastString Source

moduleNameString :: ModuleName -> String Source

moduleNameSlashes :: ModuleName -> String Source

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

mkModuleName :: String -> ModuleName Source

mkModuleNameFS :: FastString -> ModuleName Source

stableModuleNameCmp :: ModuleName -> ModuleName -> Ordering Source

Compares module names lexically, rather than by their `Unique`s

# The PackageId type

data PackageId Source

Essentially just a string identifying a package, including the version: e.g. parsec-1.0

Instances

Eq PackageId |
Data PackageId |
Ord PackageId |
Typeable PackageId |
Outputable PackageId |
Uniquable PackageId |
Binary PackageId |

fsToPackageId :: FastString -> PackageId Source

packageIdFS :: PackageId -> FastString Source

stringToPackageId :: String -> PackageId Source

packageIdString :: PackageId -> String Source

stablePackageIdCmp :: PackageId -> PackageId -> Ordering Source

Compares package ids lexically, rather than by their `Unique`s

# Wired-in PackageIds

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 `PackageId` 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`).

primPackageId :: PackageId Source

integerPackageId :: PackageId Source

basePackageId :: PackageId Source

rtsPackageId :: PackageId Source

thPackageId :: PackageId Source

dphSeqPackageId :: PackageId Source

dphParPackageId :: PackageId Source

mainPackageId :: PackageId Source

# The Module type

data Module Source

A Module is a pair of a `PackageId` and a `ModuleName`.

Instances

Eq Module |
Data Module |
Ord Module |
Typeable Module |
Outputable Module |
Uniquable Module |
Binary Module |

modulePackageId :: Module -> PackageId Source

moduleName :: Module -> ModuleName Source

pprModule :: Module -> SDoc Source

mkModule :: PackageId -> ModuleName -> Module Source

stableModuleCmp :: Module -> Module -> Ordering Source

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

# 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

Constructors

ModLocation |

Fields

ml_hs_file :: Maybe FilePath
ml_hi_file :: FilePath
ml_obj_file :: FilePath

Instances

Show ModLocation |
Outputable ModLocation |

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

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.

A map keyed off of `Module`s

elemModuleEnv :: Module -> ModuleEnv a -> Bool Source

extendModuleEnv :: ModuleEnv a -> Module -> a -> ModuleEnv aSource

extendModuleEnvList :: ModuleEnv a -> [(Module, a)] -> ModuleEnv aSource

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

plusModuleEnv_C :: (a -> a -> a) -> ModuleEnv a -> ModuleEnv a -> ModuleEnv aSource

delModuleEnvList :: ModuleEnv a -> [Module] -> ModuleEnv aSource

delModuleEnv :: ModuleEnv a -> Module -> ModuleEnv aSource

plusModuleEnv :: ModuleEnv a -> ModuleEnv a -> ModuleEnv aSource

lookupModuleEnv :: ModuleEnv a -> Module -> Maybe aSource

lookupWithDefaultModuleEnv :: ModuleEnv a -> a -> Module -> aSource

mapModuleEnv :: (a -> b) -> ModuleEnv a -> ModuleEnv bSource

mkModuleEnv :: [(Module, a)] -> ModuleEnv aSource

emptyModuleEnv :: ModuleEnv aSource

moduleEnvKeys :: ModuleEnv a -> [Module]Source

moduleEnvElts :: ModuleEnv a -> [a]Source

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

unitModuleEnv :: Module -> a -> ModuleEnv aSource

isEmptyModuleEnv :: ModuleEnv a -> Bool Source

foldModuleEnv :: (a -> b -> b) -> b -> ModuleEnv a -> bSource

extendModuleEnvWith :: (a -> a -> a) -> ModuleEnv a -> Module -> a -> ModuleEnv aSource

filterModuleEnv :: (Module -> a -> Bool) -> ModuleEnv a -> ModuleEnv aSource

# ModuleName mappings

type ModuleNameEnv elt = UniqFM eltSource

A map keyed off of `ModuleName`s (actually, their `Unique`s)

# Sets of Modules

type ModuleSet = Map Module ()Source

A set of `Module`s

emptyModuleSet :: ModuleSet Source

mkModuleSet :: [Module] -> ModuleSet Source

moduleSetElts :: ModuleSet -> [Module]Source

extendModuleSet :: ModuleSet -> Module -> ModuleSet Source

elemModuleSet :: Module -> ModuleSet -> Bool Source