diff options
Diffstat (limited to 'haddock-library/src/Documentation/Haddock')
| -rw-r--r-- | haddock-library/src/Documentation/Haddock/Types.hs | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/haddock-library/src/Documentation/Haddock/Types.hs b/haddock-library/src/Documentation/Haddock/Types.hs index 0ab6bb4c..22cab425 100644 --- a/haddock-library/src/Documentation/Haddock/Types.hs +++ b/haddock-library/src/Documentation/Haddock/Types.hs @@ -19,6 +19,11 @@ import Data.Foldable import Data.Traversable #endif +#if MIN_VERSION_base(4,8,0) +import Control.Arrow ((***)) +import Data.Bifunctor +#endif + -- | With the advent of 'Version', we may want to start attaching more -- meta-data to comments. We make a structure for this ahead of time -- so we don't have to gut half the core each time we want to add such @@ -81,6 +86,33 @@ data DocH mod id | DocHeader (Header (DocH mod id)) deriving (Eq, Show, Functor, Foldable, Traversable) +#if MIN_VERSION_base(4,8,0) +instance Bifunctor DocH where + bimap _ _ DocEmpty = DocEmpty + bimap f g (DocAppend docA docB) = DocAppend (bimap f g docA) (bimap f g docB) + bimap _ _ (DocString s) = DocString s + bimap f g (DocParagraph doc) = DocParagraph (bimap f g doc) + bimap _ g (DocIdentifier i) = DocIdentifier (g i) + bimap f _ (DocIdentifierUnchecked m) = DocIdentifierUnchecked (f m) + bimap _ _ (DocModule s) = DocModule s + bimap f g (DocWarning doc) = DocWarning (bimap f g doc) + bimap f g (DocEmphasis doc) = DocEmphasis (bimap f g doc) + bimap f g (DocMonospaced doc) = DocMonospaced (bimap f g doc) + bimap f g (DocBold doc) = DocBold (bimap f g doc) + bimap f g (DocUnorderedList docs) = DocUnorderedList (map (bimap f g) docs) + bimap f g (DocOrderedList docs) = DocOrderedList (map (bimap f g) docs) + bimap f g (DocDefList docs) = DocDefList (map (bimap f g *** bimap f g) docs) + bimap f g (DocCodeBlock doc) = DocCodeBlock (bimap f g doc) + bimap _ _ (DocHyperlink hyperlink) = DocHyperlink hyperlink + bimap _ _ (DocPic picture) = DocPic picture + bimap _ _ (DocMathInline s) = DocMathInline s + bimap _ _ (DocMathDisplay s) = DocMathDisplay s + bimap _ _ (DocAName s) = DocAName s + bimap _ _ (DocProperty s) = DocProperty s + bimap _ _ (DocExamples examples) = DocExamples examples + bimap f g (DocHeader (Header level title)) = DocHeader (Header level (bimap f g title)) +#endif + -- | 'DocMarkupH' is a set of instructions for marking up documentation. -- In fact, it's really just a mapping from 'Doc' to some other -- type [a], where [a] is usually the type of the output (HTML, say). @@ -114,4 +146,3 @@ data DocMarkupH mod id a = Markup , markupExample :: [Example] -> a , markupHeader :: Header a -> a } - |