-----------------------------------------------------------------------------
--- $Id: DriverPhases.hs,v 1.31 2005/01/18 13:51:28 simonmar Exp $
+-- $Id: DriverPhases.hs,v 1.32 2005/01/27 10:44:27 simonpj Exp $
--
-- GHC Driver
--
#include "../includes/ghcconfig.h"
module DriverPhases (
- Phase(..),
- happensBefore,
+ HscSource(..), isHsBoot, hscSourceString,
+ HscTarget(..), Phase(..),
+ happensBefore, eqPhase, anyHsc, isStopPhase,
startPhase, -- :: String -> Phase
phaseInputExt, -- :: Phase -> String
) where
import DriverUtil
+import Panic ( panic )
-----------------------------------------------------------------------------
-- Phases
linker | other | - | a.out
-}
+data HscSource
+ = HsSrcFile | HsBootFile | ExtCoreFile
+ deriving( Eq, Ord, Show )
+ -- Ord needed for the finite maps we build in CompManager
+
+
+hscSourceString :: HscSource -> String
+hscSourceString HsSrcFile = ""
+hscSourceString HsBootFile = "[boot]"
+hscSourceString ExtCoreFile = "[ext core]"
+
+isHsBoot :: HscSource -> Bool
+isHsBoot HsBootFile = True
+isHsBoot other = False
+
+data HscTarget
+ = HscC
+ | HscAsm
+ | HscJava
+ | HscILX
+ | HscInterpreted
+ | HscNothing
+ deriving (Eq, Show)
+
data Phase
- = Unlit
- | Cpp
- | HsPp
- | Hsc
+ = Unlit HscSource
+ | Cpp HscSource
+ | HsPp HscSource
+ | Hsc HscSource
| Cc
| HCc -- Haskellised C (as opposed to vanilla C) compilation
| Mangle -- assembly mangling, now done by a separate script.
| SplitMangle -- after mangler if splitting
| SplitAs
| As
- | Ln
| CmmCpp -- pre-process Cmm source
| Cmm -- parse & compile Cmm code
#ifdef ILX
| Ilx2Il
| Ilasm
#endif
- deriving (Eq, Show)
+
+ -- The final phase is a pseudo-phase that tells the pipeline to stop.
+ -- There is no runPhase case for it.
+ | StopLn -- Stop, but linking will follow, so generate .o file
+
+ deriving (Show)
+
+anyHsc :: Phase
+anyHsc = Hsc (panic "anyHsc")
+
+isStopPhase :: Phase -> Bool
+isStopPhase StopLn = True
+isStopPhase other = False
+
+eqPhase :: Phase -> Phase -> Bool
+-- Equality of constructors, ignoring the HscSource field
+eqPhase (Unlit _) (Unlit _) = True
+eqPhase (Cpp _) (Cpp _) = True
+eqPhase (HsPp _) (HsPp _) = True
+eqPhase (Hsc _) (Hsc _) = True
+eqPhase Cc Cc = True
+eqPhase HCc HCc = True
+eqPhase Mangle Mangle = True
+eqPhase SplitMangle SplitMangle = True
+eqPhase SplitAs SplitAs = True
+eqPhase As As = True
+eqPhase CmmCpp CmmCpp = True
+eqPhase Cmm Cmm = True
+eqPhase StopLn StopLn = True
+eqPhase _ _ = False
-- Partial ordering on phases: we want to know which phases will occur before
-- which others. This is used for sanity checking, to ensure that the
-- pipeline will stop at some point (see DriverPipeline.runPipeline).
-x `happensBefore` y
- | x `elem` haskell_pipe = y `elem` tail (dropWhile (/= x) haskell_pipe)
- | x `elem` cmm_pipe = y `elem` tail (dropWhile (/= x) cmm_pipe)
- | x `elem` c_pipe = y `elem` tail (dropWhile (/= x) c_pipe)
- | otherwise = False
-
-haskell_post_hsc = [HCc,Mangle,SplitMangle,As,SplitAs,Ln]
-haskell_pipe = Unlit : Cpp : HsPp : Hsc : haskell_post_hsc
-cmm_pipe = CmmCpp : Cmm : haskell_post_hsc
-c_pipe = [Cc,As,Ln]
+StopLn `happensBefore` y = False
+x `happensBefore` y = after_x `eqPhase` y || after_x `happensBefore` y
+ where
+ after_x = nextPhase x
+
+nextPhase :: Phase -> Phase
+-- A conservative approximation the next phase, used in happensBefore
+nextPhase (Unlit sf) = Cpp sf
+nextPhase (Cpp sf) = HsPp sf
+nextPhase (HsPp sf) = Hsc sf
+nextPhase (Hsc sf) = HCc
+nextPhase HCc = Mangle
+nextPhase Mangle = SplitMangle
+nextPhase SplitMangle = As
+nextPhase As = SplitAs
+nextPhase SplitAs = StopLn
+nextPhase Cc = As
+nextPhase CmmCpp = Cmm
+nextPhase Cmm = HCc
+nextPhase StopLn = panic "nextPhase: nothing after StopLn"
-- the first compilation phase for a given file is determined
-- by its suffix.
-startPhase "lhs" = Unlit
-startPhase "hs" = Cpp
-startPhase "hscpp" = HsPp
-startPhase "hspp" = Hsc
-startPhase "hcr" = Hsc
-startPhase "hc" = HCc
-startPhase "c" = Cc
-startPhase "cpp" = Cc
-startPhase "C" = Cc
-startPhase "cc" = Cc
-startPhase "cxx" = Cc
-startPhase "raw_s" = Mangle
-startPhase "s" = As
-startPhase "S" = As
-startPhase "o" = Ln
-startPhase "cmm" = CmmCpp
-startPhase "cmmcpp" = Cmm
-startPhase _ = Ln -- all unknown file types
+startPhase "lhs" = Unlit HsSrcFile
+startPhase "lhs-boot" = Unlit HsBootFile
+startPhase "hs" = Cpp HsSrcFile
+startPhase "hs-boot" = Cpp HsBootFile
+startPhase "hscpp" = HsPp HsSrcFile
+startPhase "hspp" = Hsc HsSrcFile
+startPhase "hcr" = Hsc ExtCoreFile
+startPhase "hc" = HCc
+startPhase "c" = Cc
+startPhase "cpp" = Cc
+startPhase "C" = Cc
+startPhase "cc" = Cc
+startPhase "cxx" = Cc
+startPhase "raw_s" = Mangle
+startPhase "s" = As
+startPhase "S" = As
+startPhase "o" = StopLn
+startPhase "cmm" = CmmCpp
+startPhase "cmmcpp" = Cmm
+startPhase _ = StopLn -- all unknown file types
-- This is used to determine the extension for the output from the
-- current phase (if it generates a new file). The extension depends
-- on the next phase in the pipeline.
-phaseInputExt Unlit = "lhs"
-phaseInputExt Cpp = "lpp" -- intermediate only
-phaseInputExt HsPp = "hscpp"
-phaseInputExt Hsc = "hspp"
-phaseInputExt HCc = "hc"
-phaseInputExt Cc = "c"
-phaseInputExt Mangle = "raw_s"
-phaseInputExt SplitMangle = "split_s" -- not really generated
-phaseInputExt As = "s"
-phaseInputExt SplitAs = "split_s" -- not really generated
-phaseInputExt Ln = "o"
-phaseInputExt CmmCpp = "cmm"
-phaseInputExt Cmm = "cmmcpp"
+phaseInputExt (Unlit HsSrcFile) = "lhs"
+phaseInputExt (Unlit HsBootFile) = "lhs-boot"
+phaseInputExt (Unlit ExtCoreFile) = "lhcr"
+phaseInputExt (Cpp _) = "lpp" -- intermediate only
+phaseInputExt (HsPp _) = "hscpp" -- intermediate only
+phaseInputExt (Hsc _) = "hspp" -- intermediate only
+ -- NB: as things stand, phaseInputExt (Hsc x) must not evaluate x
+ -- because runPipeline uses the StopBefore phase to pick the
+ -- output filename. That could be fixed, but watch out.
+phaseInputExt HCc = "hc"
+phaseInputExt Cc = "c"
+phaseInputExt Mangle = "raw_s"
+phaseInputExt SplitMangle = "split_s" -- not really generated
+phaseInputExt As = "s"
+phaseInputExt SplitAs = "split_s" -- not really generated
+phaseInputExt CmmCpp = "cmm"
+phaseInputExt Cmm = "cmmcpp"
+phaseInputExt StopLn = "o"
#ifdef ILX
-phaseInputExt Ilx2Il = "ilx"
-phaseInputExt Ilasm = "il"
+phaseInputExt Ilx2Il = "ilx"
+phaseInputExt Ilasm = "il"
#endif
-haskellish_suffixes = [ "hs", "lhs", "hspp", "hscpp", "hcr", "hc", "raw_s", "cmm" ]
-haskellish_src_suffixes = [ "hs", "lhs", "hspp", "hscpp", "hcr", "cmm" ]
+haskellish_src_suffixes = haskellish_user_src_suffixes ++
+ [ "hspp", "hscpp", "hcr", "cmm" ]
+haskellish_suffixes = haskellish_src_suffixes ++ ["hc", "raw_s"]
cish_suffixes = [ "c", "cpp", "C", "cc", "cxx", "s", "S" ]
extcoreish_suffixes = [ "hcr" ]
-haskellish_user_src_suffixes = [ "hs", "lhs" ]
+haskellish_user_src_suffixes = [ "hs", "lhs", "hs-boot", "lhs-boot" ] -- Will not be deleted as temp files
-- Use the appropriate suffix for the system on which
-- the GHC-compiled code will run
projects / ghc-hetmet.git / blobdiff