From c31c156422785751e33c9a7a4f021ac8da77d364 Mon Sep 17 00:00:00 2001 From: Iñaki García Etxebarria Date: Wed, 31 Jul 2019 16:28:00 +0100 Subject: Add support for labeled module references Support a markdown-style way of annotating module references. For instance -- | [label]("Module.Name#anchor") will create a link that points to the same place as the module reference "Module.Name#anchor" but the text displayed on the link will be "label". --- haddock-api/src/Haddock/Backends/Hoogle.hs | 2 +- haddock-api/src/Haddock/Backends/LaTeX.hs | 7 +++- .../src/Haddock/Backends/Xhtml/DocMarkup.hs | 15 ++++---- haddock-api/src/Haddock/Backends/Xhtml/Names.hs | 9 +++-- haddock-api/src/Haddock/Interface/Json.hs | 4 +-- haddock-api/src/Haddock/Interface/LexParseRn.hs | 2 +- haddock-api/src/Haddock/InterfaceFile.hs | 41 ++++++++++++++++++---- haddock-api/src/Haddock/Types.hs | 3 ++ 8 files changed, 62 insertions(+), 21 deletions(-) (limited to 'haddock-api') diff --git a/haddock-api/src/Haddock/Backends/Hoogle.hs b/haddock-api/src/Haddock/Backends/Hoogle.hs index 58809f73..9a304030 100644 --- a/haddock-api/src/Haddock/Backends/Hoogle.hs +++ b/haddock-api/src/Haddock/Backends/Hoogle.hs @@ -325,7 +325,7 @@ markupTag dflags = Markup { markupAppend = (++), markupIdentifier = box (TagInline "a") . str . out dflags, markupIdentifierUnchecked = box (TagInline "a") . str . showWrapped (out dflags . snd), - markupModule = box (TagInline "a") . str, + markupModule = \(ModLink m label) -> box (TagInline "a") (fromMaybe (str m) label), markupWarning = box (TagInline "i"), markupEmphasis = box (TagInline "i"), markupBold = box (TagInline "b"), diff --git a/haddock-api/src/Haddock/Backends/LaTeX.hs b/haddock-api/src/Haddock/Backends/LaTeX.hs index df81fd6e..2371695f 100644 --- a/haddock-api/src/Haddock/Backends/LaTeX.hs +++ b/haddock-api/src/Haddock/Backends/LaTeX.hs @@ -1210,7 +1210,12 @@ latexMarkup = Markup , markupAppend = \l r v -> l v . r v , markupIdentifier = \i v -> inlineElem (markupId v (fmap occName i)) , markupIdentifierUnchecked = \i v -> inlineElem (markupId v (fmap snd i)) - , markupModule = \m _ -> inlineElem (let (mdl,_ref) = break (=='#') m in (tt (text mdl))) + , markupModule = + \(ModLink m mLabel) v -> + case mLabel of + Just lbl -> inlineElem . tt $ lbl v empty + Nothing -> inlineElem (let (mdl,_ref) = break (=='#') m + in (tt (text mdl))) , markupWarning = \p v -> p v , markupEmphasis = \p v -> inlineElem (emph (p v empty)) , markupBold = \p v -> inlineElem (bold (p v empty)) diff --git a/haddock-api/src/Haddock/Backends/Xhtml/DocMarkup.hs b/haddock-api/src/Haddock/Backends/Xhtml/DocMarkup.hs index 378d0559..7670b193 100644 --- a/haddock-api/src/Haddock/Backends/Xhtml/DocMarkup.hs +++ b/haddock-api/src/Haddock/Backends/Xhtml/DocMarkup.hs @@ -44,13 +44,14 @@ parHtmlMarkup qual insertAnchors ppId = Markup { markupAppend = (+++), markupIdentifier = thecode . ppId insertAnchors, markupIdentifierUnchecked = thecode . ppUncheckedLink qual, - markupModule = \m -> let (mdl,ref) = break (=='#') m - -- Accomodate for old style - -- foo\#bar anchors - mdl' = case reverse mdl of - '\\':_ -> init mdl - _ -> mdl - in ppModuleRef (mkModuleName mdl') ref, + markupModule = \(ModLink m lbl) -> + let (mdl,ref) = break (=='#') m + -- Accomodate for old style + -- foo\#bar anchors + mdl' = case reverse mdl of + '\\':_ -> init mdl + _ -> mdl + in ppModuleRef lbl (mkModuleName mdl') ref, markupWarning = thediv ! [theclass "warning"], markupEmphasis = emphasize, markupBold = strong, diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Names.hs b/haddock-api/src/Haddock/Backends/Xhtml/Names.hs index 8553cdfb..b324fa38 100644 --- a/haddock-api/src/Haddock/Backends/Xhtml/Names.hs +++ b/haddock-api/src/Haddock/Backends/Xhtml/Names.hs @@ -186,9 +186,12 @@ ppModule mdl = anchor ! [href (moduleUrl mdl)] << toHtml (moduleString mdl) -ppModuleRef :: ModuleName -> String -> Html -ppModuleRef mdl ref = anchor ! [href (moduleHtmlFile' mdl ++ ref)] - << toHtml (moduleNameString mdl) +ppModuleRef :: Maybe Html -> ModuleName -> String -> Html +ppModuleRef Nothing mdl ref = anchor ! [href (moduleHtmlFile' mdl ++ ref)] + << toHtml (moduleNameString mdl) +ppModuleRef (Just lbl) mdl ref = anchor ! [href (moduleHtmlFile' mdl ++ ref)] + << lbl + -- NB: The ref parameter already includes the '#'. -- This function is only called from markupModule expanding a -- DocModule, which doesn't seem to be ever be used. diff --git a/haddock-api/src/Haddock/Interface/Json.hs b/haddock-api/src/Haddock/Interface/Json.hs index 4e271602..95889a63 100644 --- a/haddock-api/src/Haddock/Interface/Json.hs +++ b/haddock-api/src/Haddock/Interface/Json.hs @@ -98,9 +98,9 @@ jsonDoc (DocIdentifierUnchecked modName) = jsonObject , ("modName", jsonString (showModName modName)) ] -jsonDoc (DocModule s) = jsonObject +jsonDoc (DocModule (ModLink m _l)) = jsonObject [ ("tag", jsonString "DocModule") - , ("string", jsonString s) + , ("string", jsonString m) ] jsonDoc (DocWarning x) = jsonObject diff --git a/haddock-api/src/Haddock/Interface/LexParseRn.hs b/haddock-api/src/Haddock/Interface/LexParseRn.hs index d1d6bb31..87210273 100644 --- a/haddock-api/src/Haddock/Interface/LexParseRn.hs +++ b/haddock-api/src/Haddock/Interface/LexParseRn.hs @@ -148,7 +148,7 @@ rename dflags gre = rn DocDefList list -> DocDefList <$> traverse (\(a, b) -> (,) <$> rn a <*> rn b) list DocCodeBlock doc -> DocCodeBlock <$> rn doc DocIdentifierUnchecked x -> pure (DocIdentifierUnchecked x) - DocModule str -> pure (DocModule str) + DocModule (ModLink m l) -> DocModule . ModLink m <$> traverse rn l DocHyperlink (Hyperlink u l) -> DocHyperlink . Hyperlink u <$> traverse rn l DocPic str -> pure (DocPic str) DocMathInline str -> pure (DocMathInline str) diff --git a/haddock-api/src/Haddock/InterfaceFile.hs b/haddock-api/src/Haddock/InterfaceFile.hs index 35f21f6c..966901df 100644 --- a/haddock-api/src/Haddock/InterfaceFile.hs +++ b/haddock-api/src/Haddock/InterfaceFile.hs @@ -46,6 +46,8 @@ import GHC.Types.Unique.FM import GHC.Types.Unique.Supply import GHC.Types.Unique +import Documentation.Haddock.Parser (parseModLink) + data InterfaceFile = InterfaceFile { ifLinkEnv :: LinkEnv, @@ -69,6 +71,18 @@ ifUnitId if_ = binaryInterfaceMagic :: Word32 binaryInterfaceMagic = 0xD0Cface +-- Note [The DocModule story] +-- +-- Breaking changes to the DocH type result in Haddock being unable to read +-- existing interfaces. This is especially painful for interfaces shipped +-- with GHC distributions since there is no easy way to regenerate them! +-- +-- PR #1315 introduced a breaking change to the DocModule constructor. To +-- maintain backward compatibility we +-- +-- Parse the old DocModule constructor format (tag 5) and parse the contained +-- string into a proper ModLink structure. When writing interfaces we exclusively +-- use the new DocModule format (tag 24) -- IMPORTANT: Since datatypes in the GHC API might change between major -- versions, and because we store GHC datatypes in our interface files, we need @@ -84,10 +98,10 @@ binaryInterfaceMagic = 0xD0Cface -- binaryInterfaceVersion :: Word16 #if MIN_VERSION_ghc(9,0,0) && !MIN_VERSION_ghc(9,1,0) -binaryInterfaceVersion = 37 +binaryInterfaceVersion = 38 binaryInterfaceVersionCompatibility :: [Word16] -binaryInterfaceVersionCompatibility = [binaryInterfaceVersion] +binaryInterfaceVersionCompatibility = [37, binaryInterfaceVersion] #else #error Unsupported GHC version #endif @@ -444,6 +458,15 @@ instance Binary a => Binary (Hyperlink a) where label <- get bh return (Hyperlink url label) +instance Binary a => Binary (ModLink a) where + put_ bh (ModLink m label) = do + put_ bh m + put_ bh label + get bh = do + m <- get bh + label <- get bh + return (ModLink m label) + instance Binary Picture where put_ bh (Picture uri title) = do put_ bh uri @@ -522,9 +545,6 @@ instance (Binary mod, Binary id) => Binary (DocH mod id) where put_ bh (DocIdentifier ae) = do putByte bh 4 put_ bh ae - put_ bh (DocModule af) = do - putByte bh 5 - put_ bh af put_ bh (DocEmphasis ag) = do putByte bh 6 put_ bh ag @@ -579,6 +599,10 @@ instance (Binary mod, Binary id) => Binary (DocH mod id) where put_ bh (DocTable x) = do putByte bh 23 put_ bh x + -- See note [The DocModule story] + put_ bh (DocModule af) = do + putByte bh 24 + put_ bh af get bh = do h <- getByte bh @@ -598,9 +622,10 @@ instance (Binary mod, Binary id) => Binary (DocH mod id) where 4 -> do ae <- get bh return (DocIdentifier ae) + -- See note [The DocModule story] 5 -> do af <- get bh - return (DocModule af) + return (parseModLink af) 6 -> do ag <- get bh return (DocEmphasis ag) @@ -655,6 +680,10 @@ instance (Binary mod, Binary id) => Binary (DocH mod id) where 23 -> do x <- get bh return (DocTable x) + -- See note [The DocModule story] + 24 -> do + af <- get bh + return (DocModule af) _ -> error "invalid binary data found in the interface file" diff --git a/haddock-api/src/Haddock/Types.hs b/haddock-api/src/Haddock/Types.hs index aa76f8f6..53d01565 100644 --- a/haddock-api/src/Haddock/Types.hs +++ b/haddock-api/src/Haddock/Types.hs @@ -501,6 +501,9 @@ instance NFData id => NFData (Header id) where instance NFData id => NFData (Hyperlink id) where rnf (Hyperlink a b) = a `deepseq` b `deepseq` () +instance NFData id => NFData (ModLink id) where + rnf (ModLink a b) = a `deepseq` b `deepseq` () + instance NFData Picture where rnf (Picture a b) = a `deepseq` b `deepseq` () -- cgit v1.2.3