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--
-- Haddock - A Haskell Documentation Tool
--
-- (c) Simon Marlow 2003
--
module Haddock.Types where
import Data.Map
import Control.Monad.Writer
import GHC hiding (NoLink)
import Outputable
data DocOption
= OptHide -- ^ This module should not appear in the docs
| OptPrune
| OptIgnoreExports -- ^ Pretend everything is exported
| OptNotHome -- ^ Not the best place to get docs for things
-- exported by this module.
deriving (Eq, Show)
data ExportItem name
= ExportDecl {
-- | The original name
expItemName :: Name,
-- | A declaration
expItemDecl :: LHsDecl name,
-- | Maybe a doc comment
expItemMbDoc :: Maybe (HsDoc name),
-- | Instances relevant to this declaration
expItemInstances :: [InstHead name]
} -- ^ An exported declaration
| ExportNoDecl {
-- | The original name
expItemName :: Name,
-- | Where to link to
expItemLinkTarget :: name,
-- | Subordinate names
expItemSubs :: [name]
} -- ^ An exported entity for which we have no
-- documentation (perhaps because it resides in
-- another package)
| ExportGroup {
-- | Section level (1, 2, 3, ... )
expItemSectionLevel :: Int,
-- | Section id (for hyperlinks)
expItemSectionId :: String,
-- | Section heading text
expItemSectionText :: HsDoc name
} -- ^ A section heading
| ExportDoc (HsDoc name) -- ^ Some documentation
| ExportModule Module -- ^ A cross-reference to another module
type InstHead name = ([HsPred name], name, [HsType name])
type ModuleMap = Map Module HaddockModule
type DocMap = Map Name (HsDoc DocName)
type LinkEnv = Map Name Name
data DocName = Link Name | NoLink Name
instance Outputable DocName where
ppr (Link n) = ppr n
ppr (NoLink n) = ppr n
-- | Information about a home package module that we get from GHC's typechecker
data GhcModule = GhcModule {
ghcModule :: Module,
ghcFilename :: FilePath,
ghcMbDocOpts :: Maybe String,
ghcHaddockModInfo :: HaddockModInfo Name,
ghcMbDoc :: Maybe (HsDoc Name),
ghcGroup :: HsGroup Name,
ghcMbExports :: Maybe [LIE Name],
ghcExportedNames :: [Name],
ghcNamesInScope :: [Name],
ghcInstances :: [Instance]
}
-- | This is the data used to render a Haddock page for a module - it is the
-- "interface" of the module. The core of Haddock lies in creating this
-- structure (see Haddock.Interface).
--
-- The structure also holds intermediate data needed during its creation.
data HaddockModule = HM {
-- | A value to identify the module
hmod_mod :: Module,
-- | The original filename for this module
hmod_orig_filename :: FilePath,
-- | Textual information about the module
hmod_info :: HaddockModInfo Name,
-- | The documentation header for this module
hmod_doc :: Maybe (HsDoc Name),
-- | The renamed documentation header for this module
hmod_rn_doc :: Maybe (HsDoc DocName),
-- | The Haddock options for this module (prune, ignore-exports, etc)
hmod_options :: [DocOption],
hmod_exported_decl_map :: Map Name (LHsDecl Name),
hmod_doc_map :: Map Name (HsDoc Name),
hmod_rn_doc_map :: Map Name (HsDoc DocName),
hmod_export_items :: [ExportItem Name],
hmod_rn_export_items :: [ExportItem DocName],
-- | All the names that are defined in this module
hmod_locals :: [Name],
-- | All the names that are exported by this module
hmod_exports :: [Name],
-- | All the visible names exported by this module
-- For a name to be visible, it has to:
-- - be exported normally, and not via a full module re-exportation.
-- - have a declaration in this module or any of it's imports, with the
-- exception that it can't be from another package.
-- Basically, a visible name is a name that will show up in the documentation
-- for this module.
hmod_visible_exports :: [Name],
hmod_sub_map :: Map Name [Name],
-- | The instances exported by this module
hmod_instances :: [Instance]
}
data DocMarkup id a = Markup {
markupEmpty :: a,
markupString :: String -> a,
markupParagraph :: a -> a,
markupAppend :: a -> a -> a,
markupIdentifier :: [id] -> a,
markupModule :: String -> a,
markupEmphasis :: a -> a,
markupMonospaced :: a -> a,
markupUnorderedList :: [a] -> a,
markupOrderedList :: [a] -> a,
markupDefList :: [(a,a)] -> a,
markupCodeBlock :: a -> a,
markupURL :: String -> a,
markupAName :: String -> a
}
-- A monad which collects error messages
type ErrMsg = String
type ErrMsgM a = Writer [ErrMsg] a
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