From e68cc0f05c102193660466d611640aec922bc9a9 Mon Sep 17 00:00:00 2001 From: Alec Theriault Date: Sat, 28 Mar 2020 08:50:57 -0400 Subject: Remove unused `Haddock.Utils` functions * removed functions in `Haddock.Utils` that were not used anywhere (or exported from the `haddock-api` package) * moved GHC-specific utils from `Haddock.Utils` to `Haddock.GhcUtils` --- haddock-api/src/Haddock.hs | 1 + haddock-api/src/Haddock/Backends/Xhtml.hs | 4 + haddock-api/src/Haddock/GhcUtils.hs | 91 ++++++++++++++++++ haddock-api/src/Haddock/Interface.hs | 1 + haddock-api/src/Haddock/InterfaceFile.hs | 2 +- haddock-api/src/Haddock/Utils.hs | 150 +----------------------------- 6 files changed, 102 insertions(+), 147 deletions(-) diff --git a/haddock-api/src/Haddock.hs b/haddock-api/src/Haddock.hs index cf7bd857..0b5e33a3 100644 --- a/haddock-api/src/Haddock.hs +++ b/haddock-api/src/Haddock.hs @@ -42,6 +42,7 @@ import Haddock.Utils import Haddock.GhcUtils (modifySessionDynFlags, setOutputDir) import Control.Monad hiding (forM_) +import Control.Monad.IO.Class (MonadIO(..)) import Data.Bifunctor (second) import Data.Foldable (forM_, foldl') import Data.Traversable (for) diff --git a/haddock-api/src/Haddock/Backends/Xhtml.hs b/haddock-api/src/Haddock/Backends/Xhtml.hs index 9add4cae..d30312b7 100644 --- a/haddock-api/src/Haddock/Backends/Xhtml.hs +++ b/haddock-api/src/Haddock/Backends/Xhtml.hs @@ -294,6 +294,10 @@ ppHtmlContents dflags odir doctitle _maybe_package ] createDirectoryIfMissing True odir writeUtf8File (joinPath [odir, contentsHtmlFile]) (renderToString debug html) + where + -- Extract a module's short description. + toInstalledDescription :: InstalledInterface -> Maybe (MDoc Name) + toInstalledDescription = fmap mkMeta . hmi_description . instInfo ppPrologue :: Maybe Package -> Qualification -> String -> Maybe (MDoc GHC.RdrName) -> Html diff --git a/haddock-api/src/Haddock/GhcUtils.hs b/haddock-api/src/Haddock/GhcUtils.hs index 6577e08f..77d6ec39 100644 --- a/haddock-api/src/Haddock/GhcUtils.hs +++ b/haddock-api/src/Haddock/GhcUtils.hs @@ -20,9 +20,11 @@ module Haddock.GhcUtils where import Control.Arrow import Data.Char ( isSpace ) +import Data.Maybe ( mapMaybe ) import Haddock.Types( DocName, DocNameI ) +import BasicTypes ( PromotionFlag(..) ) import Exception import FV import Outputable ( Outputable, panic, showPpr ) @@ -253,6 +255,95 @@ getGADTConTypeG (ConDeclH98 {}) = panic "getGADTConTypeG" getGADTConTypeG (XConDecl nec) = noExtCon nec +mkEmptySigWcType :: LHsType GhcRn -> LHsSigWcType GhcRn +-- Dubious, because the implicit binders are empty even +-- though the type might have free varaiables +mkEmptySigWcType ty = mkEmptyWildCardBndrs (mkEmptyImplicitBndrs ty) + + +addClassContext :: Name -> LHsQTyVars GhcRn -> LSig GhcRn -> LSig GhcRn +-- Add the class context to a class-op signature +addClassContext cls tvs0 (L pos (ClassOpSig _ _ lname ltype)) + = L pos (TypeSig noExtField lname (mkEmptySigWcType (go (hsSigType ltype)))) + -- The mkEmptySigWcType is suspicious + where + go (L loc (HsForAllTy { hst_fvf = fvf, hst_bndrs = tvs, hst_body = ty })) + = L loc (HsForAllTy { hst_fvf = fvf, hst_xforall = noExtField + , hst_bndrs = tvs, hst_body = go ty }) + go (L loc (HsQualTy { hst_ctxt = ctxt, hst_body = ty })) + = L loc (HsQualTy { hst_xqual = noExtField + , hst_ctxt = add_ctxt ctxt, hst_body = ty }) + go (L loc ty) + = L loc (HsQualTy { hst_xqual = noExtField + , hst_ctxt = add_ctxt (L loc []), hst_body = L loc ty }) + + extra_pred = nlHsTyConApp cls (lHsQTyVarsToTypes tvs0) + add_ctxt (L loc preds) = L loc (extra_pred : preds) + +addClassContext _ _ sig = sig -- E.g. a MinimalSig is fine + +lHsQTyVarsToTypes :: LHsQTyVars GhcRn -> [LHsType GhcRn] +lHsQTyVarsToTypes tvs + = [ noLoc (HsTyVar noExtField NotPromoted (noLoc (hsLTyVarName tv))) + | tv <- hsQTvExplicit tvs ] + + +-------------------------------------------------------------------------------- +-- * Making abstract declarations +-------------------------------------------------------------------------------- + + +restrictTo :: [Name] -> LHsDecl GhcRn -> LHsDecl GhcRn +restrictTo names (L loc decl) = L loc $ case decl of + TyClD x d | isDataDecl d -> + TyClD x (d { tcdDataDefn = restrictDataDefn names (tcdDataDefn d) }) + TyClD x d | isClassDecl d -> + TyClD x (d { tcdSigs = restrictDecls names (tcdSigs d), + tcdATs = restrictATs names (tcdATs d) }) + _ -> decl + +restrictDataDefn :: [Name] -> HsDataDefn GhcRn -> HsDataDefn GhcRn +restrictDataDefn names defn@(HsDataDefn { dd_ND = new_or_data, dd_cons = cons }) + | DataType <- new_or_data + = defn { dd_cons = restrictCons names cons } + | otherwise -- Newtype + = case restrictCons names cons of + [] -> defn { dd_ND = DataType, dd_cons = [] } + [con] -> defn { dd_cons = [con] } + _ -> error "Should not happen" +restrictDataDefn _ (XHsDataDefn _) = error "restrictDataDefn" + +restrictCons :: [Name] -> [LConDecl GhcRn] -> [LConDecl GhcRn] +restrictCons names decls = [ L p d | L p (Just d) <- map (fmap keep) decls ] + where + keep d | any (\n -> n `elem` names) (map unLoc $ getConNames d) = + case con_args d of + PrefixCon _ -> Just d + RecCon fields + | all field_avail (unL fields) -> Just d + | otherwise -> Just (d { con_args = PrefixCon (field_types (map unL (unL fields))) }) + -- if we have *all* the field names available, then + -- keep the record declaration. Otherwise degrade to + -- a constructor declaration. This isn't quite right, but + -- it's the best we can do. + InfixCon _ _ -> Just d + where + field_avail :: LConDeclField GhcRn -> Bool + field_avail (L _ (ConDeclField _ fs _ _)) + = all (\f -> extFieldOcc (unLoc f) `elem` names) fs + field_avail (L _ (XConDeclField nec)) = noExtCon nec + field_types flds = [ t | ConDeclField _ _ t _ <- flds ] + + keep _ = Nothing + +restrictDecls :: [Name] -> [LSig GhcRn] -> [LSig GhcRn] +restrictDecls names = mapMaybe (filterLSigNames (`elem` names)) + + +restrictATs :: [Name] -> [LFamilyDecl GhcRn] -> [LFamilyDecl GhcRn] +restrictATs names ats = [ at | at <- ats , unL (fdLName (unL at)) `elem` names ] + + ------------------------------------------------------------------------------- -- * Parenthesization ------------------------------------------------------------------------------- diff --git a/haddock-api/src/Haddock/Interface.hs b/haddock-api/src/Haddock/Interface.hs index 24568235..6775cf2b 100644 --- a/haddock-api/src/Haddock/Interface.hs +++ b/haddock-api/src/Haddock/Interface.hs @@ -43,6 +43,7 @@ import Haddock.Types import Haddock.Utils import Control.Monad +import Control.Monad.IO.Class ( liftIO ) import Control.Exception (evaluate) import Data.List (foldl', isPrefixOf, nub) import qualified Data.Map as Map diff --git a/haddock-api/src/Haddock/InterfaceFile.hs b/haddock-api/src/Haddock/InterfaceFile.hs index 17be6fa1..7b0f29f4 100644 --- a/haddock-api/src/Haddock/InterfaceFile.hs +++ b/haddock-api/src/Haddock/InterfaceFile.hs @@ -21,9 +21,9 @@ module Haddock.InterfaceFile ( import Haddock.Types -import Haddock.Utils hiding (out) import Control.Monad +import Control.Monad.IO.Class ( MonadIO(..) ) import Data.Array import Data.IORef import Data.List (mapAccumR) diff --git a/haddock-api/src/Haddock/Utils.hs b/haddock-api/src/Haddock/Utils.hs index 3eb702c9..1d213420 100644 --- a/haddock-api/src/Haddock/Utils.hs +++ b/haddock-api/src/Haddock/Utils.hs @@ -13,15 +13,9 @@ ----------------------------------------------------------------------------- module Haddock.Utils ( - -- * Misc utilities - restrictTo, emptyHsQTvs, - toDescription, toInstalledDescription, - mkEmptySigWcType, addClassContext, lHsQTyVarsToTypes, - -- * Filename utilities moduleHtmlFile, moduleHtmlFile', contentsHtmlFile, indexHtmlFile, indexJsonFile, - moduleIndexFrameName, mainFrameName, synopsisFrameName, subIndexHtmlFile, haddockJsFile, jsQuickJumpFile, quickJumpCssFile, @@ -32,7 +26,7 @@ module Haddock.Utils ( makeAnchorId, -- * Miscellaneous utilities - getProgramName, bye, die, dieMsg, noDieMsg, mapSnd, mapMaybeM, escapeStr, + getProgramName, bye, die, escapeStr, writeUtf8File, withTempDir, -- * HTML cross reference mapping @@ -45,9 +39,6 @@ module Haddock.Utils ( replace, spanWith, - -- * MTL stuff - MonadIO(..), - -- * Logging parseVerbosity, Verbosity(..), silent, normal, verbose, deafening, out, @@ -61,23 +52,21 @@ import Documentation.Haddock.Doc (emptyMetaDoc) import Haddock.Types import Haddock.GhcUtils -import BasicTypes ( PromotionFlag(..) ) import Exception (ExceptionMonad) import GHC import Name -import Control.Monad ( liftM ) +import Control.Monad.IO.Class ( MonadIO(..) ) import Data.Char ( isAlpha, isAlphaNum, isAscii, ord, chr ) import Numeric ( showIntAtBase ) import Data.Map ( Map ) import qualified Data.Map as Map hiding ( Map ) import Data.IORef ( IORef, newIORef, readIORef ) import Data.List ( isSuffixOf ) -import Data.Maybe ( mapMaybe ) import System.Environment ( getProgName ) import System.Exit import System.Directory ( createDirectory, removeDirectoryRecursive ) -import System.IO ( hPutStr, hSetEncoding, IOMode(..), stderr, utf8, withFile ) +import System.IO ( hPutStr, hSetEncoding, IOMode(..), utf8, withFile ) import System.IO.Unsafe ( unsafePerformIO ) import qualified System.FilePath.Posix as HtmlPath @@ -85,8 +74,6 @@ import qualified System.FilePath.Posix as HtmlPath import qualified System.Posix.Internals #endif -import MonadUtils ( MonadIO(..) ) - -------------------------------------------------------------------------------- -- * Logging @@ -129,117 +116,14 @@ out progVerbosity msgVerbosity msg -------------------------------------------------------------------------------- --- | Extract a module's short description. -toDescription :: Interface -> Maybe (MDoc Name) -toDescription = fmap mkMeta . hmi_description . ifaceInfo - - --- | Extract a module's short description. -toInstalledDescription :: InstalledInterface -> Maybe (MDoc Name) -toInstalledDescription = fmap mkMeta . hmi_description . instInfo mkMeta :: Doc a -> MDoc a mkMeta x = emptyMetaDoc { _doc = x } -mkEmptySigWcType :: LHsType GhcRn -> LHsSigWcType GhcRn --- Dubious, because the implicit binders are empty even --- though the type might have free varaiables -mkEmptySigWcType ty = mkEmptyWildCardBndrs (mkEmptyImplicitBndrs ty) - -addClassContext :: Name -> LHsQTyVars GhcRn -> LSig GhcRn -> LSig GhcRn --- Add the class context to a class-op signature -addClassContext cls tvs0 (L pos (ClassOpSig _ _ lname ltype)) - = L pos (TypeSig noExtField lname (mkEmptySigWcType (go (hsSigType ltype)))) - -- The mkEmptySigWcType is suspicious - where - go (L loc (HsForAllTy { hst_fvf = fvf, hst_bndrs = tvs, hst_body = ty })) - = L loc (HsForAllTy { hst_fvf = fvf, hst_xforall = noExtField - , hst_bndrs = tvs, hst_body = go ty }) - go (L loc (HsQualTy { hst_ctxt = ctxt, hst_body = ty })) - = L loc (HsQualTy { hst_xqual = noExtField - , hst_ctxt = add_ctxt ctxt, hst_body = ty }) - go (L loc ty) - = L loc (HsQualTy { hst_xqual = noExtField - , hst_ctxt = add_ctxt (L loc []), hst_body = L loc ty }) - - extra_pred = nlHsTyConApp cls (lHsQTyVarsToTypes tvs0) - add_ctxt (L loc preds) = L loc (extra_pred : preds) - -addClassContext _ _ sig = sig -- E.g. a MinimalSig is fine - -lHsQTyVarsToTypes :: LHsQTyVars GhcRn -> [LHsType GhcRn] -lHsQTyVarsToTypes tvs - = [ noLoc (HsTyVar noExtField NotPromoted (noLoc (hsLTyVarName tv))) - | tv <- hsQTvExplicit tvs ] - --------------------------------------------------------------------------------- --- * Making abstract declarations --------------------------------------------------------------------------------- - - -restrictTo :: [Name] -> LHsDecl GhcRn -> LHsDecl GhcRn -restrictTo names (L loc decl) = L loc $ case decl of - TyClD x d | isDataDecl d -> - TyClD x (d { tcdDataDefn = restrictDataDefn names (tcdDataDefn d) }) - TyClD x d | isClassDecl d -> - TyClD x (d { tcdSigs = restrictDecls names (tcdSigs d), - tcdATs = restrictATs names (tcdATs d) }) - _ -> decl - -restrictDataDefn :: [Name] -> HsDataDefn GhcRn -> HsDataDefn GhcRn -restrictDataDefn names defn@(HsDataDefn { dd_ND = new_or_data, dd_cons = cons }) - | DataType <- new_or_data - = defn { dd_cons = restrictCons names cons } - | otherwise -- Newtype - = case restrictCons names cons of - [] -> defn { dd_ND = DataType, dd_cons = [] } - [con] -> defn { dd_cons = [con] } - _ -> error "Should not happen" -restrictDataDefn _ (XHsDataDefn _) = error "restrictDataDefn" - -restrictCons :: [Name] -> [LConDecl GhcRn] -> [LConDecl GhcRn] -restrictCons names decls = [ L p d | L p (Just d) <- map (fmap keep) decls ] - where - keep d | any (\n -> n `elem` names) (map unLoc $ getConNames d) = - case con_args d of - PrefixCon _ -> Just d - RecCon fields - | all field_avail (unL fields) -> Just d - | otherwise -> Just (d { con_args = PrefixCon (field_types (map unL (unL fields))) }) - -- if we have *all* the field names available, then - -- keep the record declaration. Otherwise degrade to - -- a constructor declaration. This isn't quite right, but - -- it's the best we can do. - InfixCon _ _ -> Just d - where - field_avail :: LConDeclField GhcRn -> Bool - field_avail (L _ (ConDeclField _ fs _ _)) - = all (\f -> extFieldOcc (unLoc f) `elem` names) fs - field_avail (L _ (XConDeclField nec)) = noExtCon nec - field_types flds = [ t | ConDeclField _ _ t _ <- flds ] - - keep _ = Nothing - -restrictDecls :: [Name] -> [LSig GhcRn] -> [LSig GhcRn] -restrictDecls names = mapMaybe (filterLSigNames (`elem` names)) - - -restrictATs :: [Name] -> [LFamilyDecl GhcRn] -> [LFamilyDecl GhcRn] -restrictATs names ats = [ at | at <- ats , unL (fdLName (unL at)) `elem` names ] - -emptyHsQTvs :: LHsQTyVars GhcRn --- This function is here, rather than in HsTypes, because it *renamed*, but --- does not necessarily have all the rigt kind variables. It is used --- in Haddock just for printing, so it doesn't matter -emptyHsQTvs = HsQTvs { hsq_ext = error "haddock:emptyHsQTvs" - , hsq_explicit = [] } - - -------------------------------------------------------------------------------- -- * Filename mangling functions stolen from s main/DriverUtil.lhs. -------------------------------------------------------------------------------- - baseName :: ModuleName -> FilePath baseName = map (\c -> if c == '.' then '-' else c) . moduleNameString @@ -266,13 +150,6 @@ indexHtmlFile = "doc-index.html" indexJsonFile = "doc-index.json" - -moduleIndexFrameName, mainFrameName, synopsisFrameName :: String -moduleIndexFrameName = "modules" -mainFrameName = "main" -synopsisFrameName = "synopsis" - - subIndexHtmlFile :: String -> String subIndexHtmlFile ls = "doc-index-" ++ b ++ ".html" where b | all isAlpha ls = ls @@ -346,7 +223,7 @@ quickJumpCssFile = "quick-jump.css" getProgramName :: IO String -getProgramName = liftM (`withoutSuffix` ".bin") getProgName +getProgramName = fmap (`withoutSuffix` ".bin") getProgName where str `withoutSuffix` suff | suff `isSuffixOf` str = take (length str - length suff) str | otherwise = str @@ -355,25 +232,6 @@ getProgramName = liftM (`withoutSuffix` ".bin") getProgName bye :: String -> IO a bye s = putStr s >> exitSuccess - -dieMsg :: String -> IO () -dieMsg s = getProgramName >>= \prog -> die (prog ++ ": " ++ s) - - -noDieMsg :: String -> IO () -noDieMsg s = getProgramName >>= \prog -> hPutStr stderr (prog ++ ": " ++ s) - - -mapSnd :: (b -> c) -> [(a,b)] -> [(a,c)] -mapSnd _ [] = [] -mapSnd f ((x,y):xs) = (x,f y) : mapSnd f xs - - -mapMaybeM :: Monad m => (a -> m b) -> Maybe a -> m (Maybe b) -mapMaybeM _ Nothing = return Nothing -mapMaybeM f (Just a) = liftM Just (f a) - - escapeStr :: String -> String escapeStr = escapeURIString isUnreserved -- cgit v1.2.3