* Refactor CLabel.RtsLabel to CLabel.CmmLabel

[ghc-hetmet.git] / compiler / parser / Lexer.x

diff --git a/compiler/parser/Lexer.x b/compiler/parser/Lexer.x
index 7f5c3a4..bbdd2a1 100644 (file)
--- a/compiler/parser/Lexer.x
+++ b/compiler/parser/Lexer.x
@@ -32,7 +32,7 @@
 
 {
 {-# OPTIONS -Wwarn -w #-}
--- The above warning supression flag is a temporary kludge.
+-- The above -Wwarn 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
@@ -46,8 +46,9 @@
 module Lexer (
    Token(..), lexer, pragState, mkPState, PState(..),
    P(..), ParseResult(..), getSrcLoc, 
+   getPState, getDynFlags, withThisPackage,
    failLocMsgP, failSpanMsgP, srcParseFail,
-   getMessages,
+   getMessages, 
    popContext, pushCurrentContext, setLastToken, setSrcLoc,
    getLexState, popLexState, pushLexState,
    extension, standaloneDerivingEnabled, bangPatEnabled,
@@ -63,6 +64,7 @@ import FastString
 import SrcLoc
 import UniqFM
 import DynFlags
+import Module
 import Ctype
 import Util            ( readRational )
 
@@ -453,7 +455,6 @@ data Token
   | ITstdcallconv
   | ITccallconv
   | ITprimcallconv
-  | ITdotnet
   | ITmdo
   | ITfamily
   | ITgroup
@@ -530,8 +531,6 @@ data Token
 
   | ITdupipvarid   FastString  -- GHC extension: implicit param: ?x
 
-  | ITpragma StringBuffer
-
   | ITchar       Char
   | ITstring     FastString
   | ITinteger    Integer
@@ -544,7 +543,7 @@ data Token
   | ITprimfloat  Rational
   | ITprimdouble Rational
 
-  -- MetaHaskell extension tokens
+  -- Template Haskell extension tokens
   | ITopenExpQuote             --  [| or [e|
   | ITopenPatQuote             --  [p|
   | ITopenDecQuote             --  [d|
@@ -663,9 +662,8 @@ reservedWordsFM = listToUFM $
        ( "stdcall",    ITstdcallconv,   bit ffiBit),
        ( "ccall",      ITccallconv,     bit ffiBit),
        ( "prim",       ITprimcallconv,  bit ffiBit),
-       ( "dotnet",     ITdotnet,        bit ffiBit),
 
-       ( "rec",        ITrec,           bit arrowsBit),
+       ( "rec",        ITrec,           bit recBit),
        ( "proc",       ITproc,          bit arrowsBit)
      ]
 
@@ -883,12 +881,12 @@ withLexedDocType lexDocComment = do
 -- RULES pragmas turn on the forall and '.' keywords, and we turn them
 -- off again at the end of the pragma.
 rulePrag :: Action
-rulePrag span _ _ = do
+rulePrag span _buf _len = do
   setExts (.|. bit inRulePragBit)
   return (L span ITrules_prag)
 
 endPrag :: Action
-endPrag span _ _ = do
+endPrag span _buf _len = do
   setExts (.&. complement (bit inRulePragBit))
   return (L span ITclose_prag)
 
@@ -1515,6 +1513,17 @@ failLocMsgP loc1 loc2 str = P $ \_ -> PFailed (mkSrcSpan loc1 loc2) (text str)
 failSpanMsgP :: SrcSpan -> SDoc -> P a
 failSpanMsgP span msg = P $ \_ -> PFailed span msg
 
+getPState :: P PState
+getPState = P $ \s -> POk s s
+
+getDynFlags :: P DynFlags
+getDynFlags = P $ \s -> POk s (dflags s)
+
+withThisPackage :: (PackageId -> a) -> P a
+withThisPackage f
+ = do  pkg     <- liftM thisPackage getDynFlags
+       return  $ f pkg
+
 extension :: (Int -> Bool) -> P Bool
 extension p = P $ \s -> POk s (p $! extsBitmap s)
 
@@ -1672,6 +1681,8 @@ rawTokenStreamBit :: Int
 rawTokenStreamBit = 20 -- producing a token stream with all comments included
 newQualOpsBit :: Int
 newQualOpsBit = 21 -- Haskell' qualified operator syntax, e.g. Prelude.(+)
+recBit :: Int
+recBit = 22 -- rec
 
 always :: Int -> Bool
 always           _     = True
@@ -1753,26 +1764,23 @@ mkPState buf loc flags  =
     }
     where
       bitmap = genericsBit `setBitIf` dopt Opt_Generics flags
-              .|. ffiBit       `setBitIf` dopt Opt_ForeignFunctionInterface flags
-              .|. parrBit      `setBitIf` dopt Opt_PArr         flags
-              .|. arrowsBit    `setBitIf` dopt Opt_Arrows       flags
-              .|. thBit        `setBitIf` dopt Opt_TemplateHaskell flags
-              .|. qqBit        `setBitIf` dopt Opt_QuasiQuotes flags
-              .|. ipBit        `setBitIf` dopt Opt_ImplicitParams flags
-              .|. explicitForallBit `setBitIf` dopt Opt_ScopedTypeVariables flags
-              .|. explicitForallBit `setBitIf` dopt Opt_LiberalTypeSynonyms flags
-              .|. explicitForallBit `setBitIf` dopt Opt_PolymorphicComponents flags
-              .|. explicitForallBit `setBitIf` dopt Opt_ExistentialQuantification flags
-              .|. explicitForallBit `setBitIf` dopt Opt_Rank2Types flags
-              .|. explicitForallBit `setBitIf` dopt Opt_RankNTypes flags
-              .|. bangPatBit   `setBitIf` dopt Opt_BangPatterns flags
-              .|. tyFamBit     `setBitIf` dopt Opt_TypeFamilies flags
-              .|. haddockBit   `setBitIf` dopt Opt_Haddock      flags
-              .|. magicHashBit `setBitIf` dopt Opt_MagicHash    flags
-              .|. kindSigsBit  `setBitIf` dopt Opt_KindSignatures flags
-              .|. recursiveDoBit `setBitIf` dopt Opt_RecursiveDo flags
-              .|. unicodeSyntaxBit `setBitIf` dopt Opt_UnicodeSyntax flags
-              .|. unboxedTuplesBit `setBitIf` dopt Opt_UnboxedTuples flags
+              .|. ffiBit            `setBitIf` dopt Opt_ForeignFunctionInterface flags
+              .|. parrBit           `setBitIf` dopt Opt_PArr         flags
+              .|. arrowsBit         `setBitIf` dopt Opt_Arrows       flags
+              .|. thBit             `setBitIf` dopt Opt_TemplateHaskell flags
+              .|. qqBit             `setBitIf` dopt Opt_QuasiQuotes flags
+              .|. ipBit             `setBitIf` dopt Opt_ImplicitParams flags
+              .|. explicitForallBit `setBitIf` dopt Opt_ExplicitForAll flags
+              .|. bangPatBit        `setBitIf` dopt Opt_BangPatterns flags
+              .|. tyFamBit          `setBitIf` dopt Opt_TypeFamilies flags
+              .|. haddockBit        `setBitIf` dopt Opt_Haddock      flags
+              .|. magicHashBit      `setBitIf` dopt Opt_MagicHash    flags
+              .|. kindSigsBit       `setBitIf` dopt Opt_KindSignatures flags
+              .|. recursiveDoBit    `setBitIf` dopt Opt_RecursiveDo flags
+              .|. recBit            `setBitIf` dopt Opt_DoRec  flags
+              .|. recBit            `setBitIf` dopt Opt_Arrows flags
+              .|. unicodeSyntaxBit  `setBitIf` dopt Opt_UnicodeSyntax flags
+              .|. unboxedTuplesBit  `setBitIf` dopt Opt_UnboxedTuples flags
               .|. standaloneDerivingBit `setBitIf` dopt Opt_StandaloneDeriving flags
                .|. transformComprehensionsBit `setBitIf` dopt Opt_TransformListComp flags
                .|. rawTokenStreamBit `setBitIf` dopt Opt_KeepRawTokenStream flags