forms of ``output.''
\begin{code}
-{-# OPTIONS -w #-}
--- The above warning supression flag is a temporary kludge.
--- While working on this module you are encouraged to remove it and fix
--- any warnings in the module. See
--- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
--- for details
-
module Outputable (
Outputable(..), OutputableBndr(..), -- Class
#include "HsVersions.h"
-import {-# SOURCE #-} Module( Module, modulePackageId,
- ModuleName, moduleName )
+import {-# SOURCE #-} Module( Module, ModuleName, moduleName )
import {-# SOURCE #-} OccName( OccName )
import StaticFlags ( opt_PprStyle_Debug, opt_PprUserLength )
-import PackageConfig ( PackageId, packageIdString )
import FastString
+import FastTypes
+import GHC.Ptr
import qualified Pretty
import Pretty ( Doc, Mode(..) )
import Panic
type PrintUnqualified = (QueryQualifyName, QueryQualifyModule)
alwaysQualifyNames :: QueryQualifyName
-alwaysQualifyNames m n = NameQual (moduleName m)
+alwaysQualifyNames m _ = NameQual (moduleName m)
neverQualifyNames :: QueryQualifyName
-neverQualifyNames m n = NameUnqual
+neverQualifyNames _ _ = NameUnqual
alwaysQualifyModules :: QueryQualifyModule
-alwaysQualifyModules m = True
+alwaysQualifyModules _ = True
neverQualifyModules :: QueryQualifyModule
-neverQualifyModules m = False
+neverQualifyModules _ = False
+
+type QueryQualifies = (QueryQualifyName, QueryQualifyModule)
+alwaysQualify, neverQualify :: QueryQualifies
alwaysQualify = (alwaysQualifyNames, alwaysQualifyModules)
neverQualify = (neverQualifyNames, neverQualifyModules)
+defaultUserStyle, defaultDumpStyle :: PprStyle
+
defaultUserStyle = mkUserStyle alwaysQualify AllTheWay
defaultDumpStyle | opt_PprStyle_Debug = PprDebug
| opt_PprStyle_Debug = mkUserStyle alwaysQualify AllTheWay
| otherwise = mkUserStyle alwaysQualify (PartWay opt_PprUserLength)
+mkUserStyle :: QueryQualifies -> Depth -> PprStyle
mkUserStyle unqual depth
| opt_PprStyle_Debug = PprDebug
| otherwise = PprUser unqual depth
type SDoc = PprStyle -> Doc
withPprStyle :: PprStyle -> SDoc -> SDoc
-withPprStyle sty d sty' = d sty
+withPprStyle sty d _sty' = d sty
withPprStyleDoc :: PprStyle -> SDoc -> Doc
withPprStyleDoc sty d = d sty
pprDeeper :: SDoc -> SDoc
-pprDeeper d (PprUser q (PartWay 0)) = Pretty.text "..."
+pprDeeper _ (PprUser _ (PartWay 0)) = Pretty.text "..."
pprDeeper d (PprUser q (PartWay n)) = d (PprUser q (PartWay (n-1)))
pprDeeper d other_sty = d other_sty
| n==0 = Pretty.text "..."
| otherwise = f (go 0 ds) (PprUser q (PartWay (n-1)))
where
- go i [] = []
+ go _ [] = []
go i (d:ds) | i >= n = [text "...."]
| otherwise = d : go (i+1) ds
= f ds other_sty
pprSetDepth :: Int -> SDoc -> SDoc
-pprSetDepth n d (PprUser q _) = d (PprUser q (PartWay n))
-pprSetDepth n d other_sty = d other_sty
+pprSetDepth n d (PprUser q _) = d (PprUser q (PartWay n))
+pprSetDepth _n d other_sty = d other_sty
getPprStyle :: (PprStyle -> SDoc) -> SDoc
getPprStyle df sty = df sty sty
\begin{code}
qualName :: PprStyle -> QueryQualifyName
-qualName (PprUser (qual_name,_) _) m n = qual_name m n
-qualName other m n = NameQual (moduleName m)
+qualName (PprUser (qual_name,_) _) m n = qual_name m n
+qualName _other m _n = NameQual (moduleName m)
qualModule :: PprStyle -> QueryQualifyModule
-qualModule (PprUser (_,qual_mod) _) m = qual_mod m
-qualModule other m = True
+qualModule (PprUser (_,qual_mod) _) m = qual_mod m
+qualModule _other _m = True
codeStyle :: PprStyle -> Bool
codeStyle (PprCode _) = True
asmStyle :: PprStyle -> Bool
asmStyle (PprCode AsmStyle) = True
-asmStyle other = False
+asmStyle _other = False
dumpStyle :: PprStyle -> Bool
dumpStyle PprDump = True
-dumpStyle other = False
+dumpStyle _other = False
debugStyle :: PprStyle -> Bool
debugStyle PprDebug = True
-debugStyle other = False
+debugStyle _other = False
userStyle :: PprStyle -> Bool
userStyle (PprUser _ _) = True
-userStyle other = False
+userStyle _other = False
ifPprDebug :: SDoc -> SDoc -- Empty for non-debug style
ifPprDebug d sty@PprDebug = d sty
-ifPprDebug d sty = Pretty.empty
+ifPprDebug _ _ = Pretty.empty
\end{code}
\begin{code}
docToSDoc :: Doc -> SDoc
docToSDoc d = \_ -> d
-empty sty = Pretty.empty
-text s sty = Pretty.text s
-char c sty = Pretty.char c
-ftext s sty = Pretty.ftext s
-ptext s sty = Pretty.ptext s
-int n sty = Pretty.int n
-integer n sty = Pretty.integer n
-float n sty = Pretty.float n
-double n sty = Pretty.double n
-rational n sty = Pretty.rational n
+empty :: SDoc
+text :: String -> SDoc
+char :: Char -> SDoc
+ftext :: FastString -> SDoc
+ptext :: Ptr t -> SDoc
+int :: Int -> SDoc
+integer :: Integer -> SDoc
+float :: Float -> SDoc
+double :: Double -> SDoc
+rational :: Rational -> SDoc
+
+empty _sty = Pretty.empty
+text s _sty = Pretty.text s
+char c _sty = Pretty.char c
+ftext s _sty = Pretty.ftext s
+ptext s _sty = Pretty.ptext s
+int n _sty = Pretty.int n
+integer n _sty = Pretty.integer n
+float n _sty = Pretty.float n
+double n _sty = Pretty.double n
+rational n _sty = Pretty.rational n
+
+parens, braces, brackets, quotes, doubleQuotes, angleBrackets :: SDoc -> SDoc
parens d sty = Pretty.parens (d sty)
braces d sty = Pretty.braces (d sty)
doubleQuotes d sty = Pretty.doubleQuotes (d sty)
angleBrackets d = char '<' <> d <> char '>'
+cparen :: Bool -> SDoc -> SDoc
+
cparen b d sty = Pretty.cparen b (d sty)
-- quotes encloses something in single quotes...
-- so that we don't get `foo''. Instead we just have foo'.
quotes d sty = case show pp_d of
('\'' : _) -> pp_d
- other -> Pretty.quotes pp_d
+ _other -> Pretty.quotes pp_d
where
pp_d = d sty
-semi sty = Pretty.semi
-comma sty = Pretty.comma
-colon sty = Pretty.colon
-equals sty = Pretty.equals
-space sty = Pretty.space
-lparen sty = Pretty.lparen
-rparen sty = Pretty.rparen
-lbrack sty = Pretty.lbrack
-rbrack sty = Pretty.rbrack
-lbrace sty = Pretty.lbrace
-rbrace sty = Pretty.rbrace
-dcolon sty = Pretty.ptext SLIT("::")
-arrow sty = Pretty.ptext SLIT("->")
-underscore = char '_'
-dot = char '.'
+semi, comma, colon, equals, space, dcolon, arrow, underscore, dot :: SDoc
+lparen, rparen, lbrack, rbrack, lbrace, rbrace :: SDoc
+
+semi _sty = Pretty.semi
+comma _sty = Pretty.comma
+colon _sty = Pretty.colon
+equals _sty = Pretty.equals
+space _sty = Pretty.space
+dcolon _sty = Pretty.ptext SLIT("::")
+arrow _sty = Pretty.ptext SLIT("->")
+underscore = char '_'
+dot = char '.'
+lparen _sty = Pretty.lparen
+rparen _sty = Pretty.rparen
+lbrack _sty = Pretty.lbrack
+rbrack _sty = Pretty.rbrack
+lbrace _sty = Pretty.lbrace
+rbrace _sty = Pretty.rbrace
+
+nest :: Int -> SDoc -> SDoc
+(<>), (<+>), ($$), ($+$) :: SDoc -> SDoc -> SDoc
nest n d sty = Pretty.nest n (d sty)
(<>) d1 d2 sty = (Pretty.<>) (d1 sty) (d2 sty)
($$) d1 d2 sty = (Pretty.$$) (d1 sty) (d2 sty)
($+$) d1 d2 sty = (Pretty.$+$) (d1 sty) (d2 sty)
+hcat, hsep, vcat, sep, cat, fsep, fcat :: [SDoc] -> SDoc
+
+
hcat ds sty = Pretty.hcat [d sty | d <- ds]
hsep ds sty = Pretty.hsep [d sty | d <- ds]
vcat ds sty = Pretty.vcat [d sty | d <- ds]
fsep ds sty = Pretty.fsep [d sty | d <- ds]
fcat ds sty = Pretty.fcat [d sty | d <- ds]
+hang :: SDoc -> Int -> SDoc -> SDoc
+
hang d1 n d2 sty = Pretty.hang (d1 sty) n (d2 sty)
punctuate :: SDoc -> [SDoc] -> [SDoc]
-punctuate p [] = []
+punctuate _ [] = []
punctuate p (d:ds) = go d ds
where
go d [] = [d]
instance Outputable FastString where
ppr fs = ftext fs -- Prints an unadorned string,
-- no double quotes or anything
-
-instance Outputable PackageId where
- ppr pid = text (packageIdString pid)
\end{code}
class Outputable a => OutputableBndr a where
pprBndr :: BindingSite -> a -> SDoc
- pprBndr b x = ppr x
+ pprBndr _b x = ppr x
\end{code}
| t == 2 = ptext SLIT("twice")
| otherwise = speakN t <+> ptext SLIT("times")
-plural [x] = empty
-plural xs = char 's'
+plural :: [a] -> SDoc
+plural [_] = empty -- a bit frightening, but there you are
+plural _ = char 's'
\end{code}
-- (used for unusual pgm errors)
pprTrace = pprAndThen trace
+pprPanic# :: String -> SDoc -> FastInt
pprPanic# heading pretty_msg = panic# (show (doc PprDebug))
where
doc = text heading <+> pretty_msg
msg]
warnPprTrace :: Bool -> String -> Int -> SDoc -> a -> a
-warnPprTrace False file line msg x = x
-warnPprTrace True file line msg x
+warnPprTrace False _file _line _msg x = x
+warnPprTrace True file line msg x
= trace (show (doc PprDebug)) x
where
doc = sep [hsep [text "WARNING: file", text file, text "line", int line],
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