-- Hoogle documentation, generated by Haddock
-- See Hoogle, http://www.haskell.org/hoogle/


-- | A documentation-generation tool for Haskell libraries
--   
--   Haddock is a documentation-generation tool for Haskell libraries
@package haddock
@version 2.9.2


-- | The Haddock API: A rudimentory, highly experimental API exposing some
--   of the internals of Haddock. Don't expect it to be stable.
module Documentation.Haddock

-- | <a>Interface</a> holds all information used to render a single Haddock
--   page. It represents the <i>interface</i> of a module. The core
--   business of Haddock lies in creating this structure. Note that the
--   record contains some fields that are only used to create the final
--   record, and that are not used by the backends.
data Interface
Interface :: Module -> FilePath -> !HaddockModInfo Name -> !Maybe (Doc Name) -> Maybe (Doc DocName) -> ![DocOption] -> Map Name DeclInfo -> Map Name (DocForDecl DocName) -> Map Name [Name] -> ![ExportItem Name] -> [ExportItem DocName] -> ![Name] -> ![Name] -> ![Instance] -> Map Name (Doc Name) -> (Int, Int) -> Interface

-- | The module behind this interface.
ifaceMod :: Interface -> Module

-- | Original file name of the module.
ifaceOrigFilename :: Interface -> FilePath

-- | Textual information about the module.
ifaceInfo :: Interface -> !HaddockModInfo Name

-- | Documentation header.
ifaceDoc :: Interface -> !Maybe (Doc Name)

-- | Documentation header with cross-reference information.
ifaceRnDoc :: Interface -> Maybe (Doc DocName)

-- | Haddock options for this module (prune, ignore-exports, etc).
ifaceOptions :: Interface -> ![DocOption]

-- | Declarations originating from the module. Excludes declarations
--   without names (instances and stand-alone documentation comments).
--   Includes names of subordinate declarations mapped to their parent
--   declarations.
ifaceDeclMap :: Interface -> Map Name DeclInfo

-- | Documentation of declarations originating from the module (including
--   subordinates).
ifaceRnDocMap :: Interface -> Map Name (DocForDecl DocName)
ifaceSubMap :: Interface -> Map Name [Name]
ifaceExportItems :: Interface -> ![ExportItem Name]
ifaceRnExportItems :: Interface -> [ExportItem DocName]

-- | All names exported by the module.
ifaceExports :: Interface -> ![Name]

-- | All "visible" names exported by the module. A visible name is a name
--   that will show up in the documentation of the module.
ifaceVisibleExports :: Interface -> ![Name]

-- | Instances exported by the module.
ifaceInstances :: Interface -> ![Instance]

-- | Documentation of instances defined in the module.
ifaceInstanceDocMap :: Interface -> Map Name (Doc Name)

-- | The number of haddockable and haddocked items in the module, as a
--   tuple. Haddockable items are the exports and the module itself.
ifaceHaddockCoverage :: Interface -> (Int, Int)

-- | A subset of the fields of <a>Interface</a> that we store in the
--   interface files.
data InstalledInterface
InstalledInterface :: Module -> HaddockModInfo Name -> Map Name (DocForDecl Name) -> [Name] -> [Name] -> [DocOption] -> Map Name [Name] -> InstalledInterface

-- | The module represented by this interface.
instMod :: InstalledInterface -> Module

-- | Textual information about the module.
instInfo :: InstalledInterface -> HaddockModInfo Name

-- | Documentation of declarations originating from the module (including
--   subordinates).
instDocMap :: InstalledInterface -> Map Name (DocForDecl Name)

-- | All names exported by this module.
instExports :: InstalledInterface -> [Name]

-- | All "visible" names exported by the module. A visible name is a name
--   that will show up in the documentation of the module.
instVisibleExports :: InstalledInterface -> [Name]

-- | Haddock options for this module (prune, ignore-exports, etc).
instOptions :: InstalledInterface -> [DocOption]
instSubMap :: InstalledInterface -> Map Name [Name]

-- | Create <a>Interface</a> structures from a given list of Haddock
--   command-line flags and file or module names (as accepted by
--   <tt>haddock</tt> executable). Flags that control documentation
--   generation or show help or version information are ignored.
createInterfaces :: [Flag] -> [String] -> IO [Interface]

-- | Create <a>Interface</a>s and a link environment by typechecking the
--   list of modules using the GHC API and processing the resulting syntax
--   trees.
processModules :: Verbosity -> [String] -> [Flag] -> [InterfaceFile] -> Ghc ([Interface], LinkEnv)
data ExportItem name

-- | An exported declaration.
ExportDecl :: LHsDecl name -> DocForDecl name -> [(name, DocForDecl name)] -> [DocInstance name] -> ExportItem name

-- | A declaration.
expItemDecl :: ExportItem name -> LHsDecl name

-- | Maybe a doc comment, and possibly docs for arguments (if this decl is
--   a function or type-synonym).
expItemMbDoc :: ExportItem name -> DocForDecl name

-- | Subordinate names, possibly with documentation.
expItemSubDocs :: ExportItem name -> [(name, DocForDecl name)]

-- | Instances relevant to this declaration, possibly with documentation.
expItemInstances :: ExportItem name -> [DocInstance name]

-- | An exported entity for which we have no documentation (perhaps because
--   it resides in another package).
ExportNoDecl :: name -> [name] -> ExportItem name
expItemName :: ExportItem name -> name

-- | Subordinate names.
expItemSubs :: ExportItem name -> [name]

-- | A section heading.
ExportGroup :: Int -> String -> Doc name -> ExportItem name

-- | Section level (1, 2, 3, ...).
expItemSectionLevel :: ExportItem name -> Int

-- | Section id (for hyperlinks).
expItemSectionId :: ExportItem name -> String

-- | Section heading text.
expItemSectionText :: ExportItem name -> Doc name

-- | Some documentation.
ExportDoc :: (Doc name) -> ExportItem name

-- | A cross-reference to another module.
ExportModule :: Module -> ExportItem name
type Decl = LHsDecl Name

-- | A declaration that may have documentation, including its subordinates,
--   which may also have documentation.
type DeclInfo = (Decl, DocForDecl Name, [(Name, DocForDecl Name)])
type DocForDecl name = (Maybe (Doc name), FnArgsDoc name)

-- | Arguments and result are indexed by Int, zero-based from the left,
--   because that's the easiest to use when recursing over types.
type FnArgsDoc name = Map Int (Doc name)

-- | Type of environment used to cross-reference identifiers in the syntax.
type LinkEnv = Map Name Module

-- | Extends <a>Name</a> with cross-reference information.
data DocName

-- | This thing is part of the (existing or resulting) documentation. The
--   <a>Module</a> is the preferred place in the documentation to refer to.
Documented :: Name -> Module -> DocName

-- | This thing is not part of the (existing or resulting) documentation,
--   as far as Haddock knows.
Undocumented :: Name -> DocName

-- | An instance head that may have documentation.
type DocInstance name = (InstHead name, Maybe (Doc name))

-- | The head of an instance. Consists of a context, a class name and a
--   list of instance types.
type InstHead name = ([HsPred name], name, [HsType name])
data Doc id
DocEmpty :: Doc id
DocAppend :: (Doc id) -> (Doc id) -> Doc id
DocString :: String -> Doc id
DocParagraph :: (Doc id) -> Doc id
DocIdentifier :: [id] -> Doc id
DocModule :: String -> Doc id
DocEmphasis :: (Doc id) -> Doc id
DocMonospaced :: (Doc id) -> Doc id
DocUnorderedList :: [Doc id] -> Doc id
DocOrderedList :: [Doc id] -> Doc id
DocDefList :: [(Doc id, Doc id)] -> Doc id
DocCodeBlock :: (Doc id) -> Doc id
DocURL :: String -> Doc id
DocPic :: String -> Doc id
DocAName :: String -> Doc id
DocExamples :: [Example] -> Doc id
data Example
Example :: String -> [String] -> Example
exampleExpression :: Example -> String
exampleResult :: Example -> [String]
data DocMarkup id a
Markup :: a -> (String -> a) -> (a -> a) -> (a -> a -> a) -> ([id] -> a) -> (String -> a) -> (a -> a) -> (a -> a) -> ([a] -> a) -> ([a] -> a) -> ([(a, a)] -> a) -> (a -> a) -> (String -> a) -> (String -> a) -> (String -> a) -> ([Example] -> a) -> DocMarkup id a
markupEmpty :: DocMarkup id a -> a
markupString :: DocMarkup id a -> String -> a
markupParagraph :: DocMarkup id a -> a -> a
markupAppend :: DocMarkup id a -> a -> a -> a
markupIdentifier :: DocMarkup id a -> [id] -> a
markupModule :: DocMarkup id a -> String -> a
markupEmphasis :: DocMarkup id a -> a -> a
markupMonospaced :: DocMarkup id a -> a -> a
markupUnorderedList :: DocMarkup id a -> [a] -> a
markupOrderedList :: DocMarkup id a -> [a] -> a
markupDefList :: DocMarkup id a -> [(a, a)] -> a
markupCodeBlock :: DocMarkup id a -> a -> a
markupURL :: DocMarkup id a -> String -> a
markupAName :: DocMarkup id a -> String -> a
markupPic :: DocMarkup id a -> String -> a
markupExample :: DocMarkup id a -> [Example] -> a
data HaddockModInfo name
HaddockModInfo :: Maybe (Doc name) -> Maybe String -> Maybe String -> Maybe String -> HaddockModInfo name
hmi_description :: HaddockModInfo name -> Maybe (Doc name)
hmi_portability :: HaddockModInfo name -> Maybe String
hmi_stability :: HaddockModInfo name -> Maybe String
hmi_maintainer :: HaddockModInfo name -> Maybe String
markup :: DocMarkup id a -> Doc id -> a
data InterfaceFile
InterfaceFile :: LinkEnv -> [InstalledInterface] -> InterfaceFile
ifLinkEnv :: InterfaceFile -> LinkEnv
ifInstalledIfaces :: InterfaceFile -> [InstalledInterface]

-- | Read a Haddock (<tt>.haddock</tt>) interface file. Return either an
--   <a>InterfaceFile</a> or an error message.
--   
--   This function can be called in two ways. Within a GHC session it will
--   update the use and update the session's name cache. Outside a GHC
--   session a new empty name cache is used. The function is therefore
--   generic in the monad being used. The exact monad is whichever monad
--   the first argument, the getter and setter of the name cache, requires.
readInterfaceFile :: MonadIO m => NameCacheAccessor m -> FilePath -> m (Either String InterfaceFile)
nameCacheFromGhc :: NameCacheAccessor Ghc
freshNameCache :: NameCacheAccessor IO
type NameCacheAccessor m = (m NameCache, NameCache -> m ())
data Flag
Flag_BuiltInThemes :: Flag
Flag_CSS :: String -> Flag
Flag_ReadInterface :: String -> Flag
Flag_DumpInterface :: String -> Flag
Flag_Heading :: String -> Flag
Flag_Html :: Flag
Flag_Hoogle :: Flag
Flag_Lib :: String -> Flag
Flag_OutputDir :: FilePath -> Flag
Flag_Prologue :: FilePath -> Flag
Flag_SourceBaseURL :: String -> Flag
Flag_SourceModuleURL :: String -> Flag
Flag_SourceEntityURL :: String -> Flag
Flag_WikiBaseURL :: String -> Flag
Flag_WikiModuleURL :: String -> Flag
Flag_WikiEntityURL :: String -> Flag
Flag_LaTeX :: Flag
Flag_LaTeXStyle :: String -> Flag
Flag_Help :: Flag
Flag_Verbosity :: String -> Flag
Flag_Version :: Flag
Flag_UseContents :: String -> Flag
Flag_GenContents :: Flag
Flag_UseIndex :: String -> Flag
Flag_GenIndex :: Flag
Flag_IgnoreAllExports :: Flag
Flag_HideModule :: String -> Flag
Flag_OptGhc :: String -> Flag
Flag_GhcLibDir :: String -> Flag
Flag_GhcVersion :: Flag
Flag_PrintGhcLibDir :: Flag
Flag_NoWarnings :: Flag
Flag_UseUnicode :: Flag
Flag_NoTmpCompDir :: Flag
Flag_Qualification :: String -> Flag
Flag_PrettyHtml :: Flag

-- | Source-level options for controlling the documentation.
data DocOption

-- | This module should not appear in the docs.
OptHide :: DocOption
OptPrune :: DocOption

-- | Pretend everything is exported.
OptIgnoreExports :: DocOption

-- | Not the best place to get docs for things exported by this module.
OptNotHome :: DocOption