{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE RankNTypes #-}

-----------------------------------------------------------------------------
-- |
-- Module      :  Distribution.Simple.PreProcess
-- Copyright   :  (c) 2003-2005, Isaac Jones, Malcolm Wallace
-- License     :  BSD3
--
-- Maintainer  :  cabal-devel@haskell.org
-- Portability :  portable
--
-- This defines a 'PreProcessor' abstraction which represents a pre-processor
-- that can transform one kind of file into another. There is also a
-- 'PPSuffixHandler' which is a combination of a file extension and a function
-- for configuring a 'PreProcessor'. It defines a bunch of known built-in
-- preprocessors like @cpp@, @cpphs@, @c2hs@, @hsc2hs@, @happy@, @alex@ etc and
-- lists them in 'knownSuffixHandlers'. On top of this it provides a function
-- for actually preprocessing some sources given a bunch of known suffix
-- handlers. This module is not as good as it could be, it could really do with
-- a rewrite to address some of the problems we have with pre-processors.

module Distribution.Simple.PreProcess (preprocessComponent, preprocessExtras,
                                knownSuffixHandlers, ppSuffixes,
                                PPSuffixHandler, PreProcessor(..),
                                mkSimplePreProcessor, runSimplePreProcessor,
                                ppCpp, ppCpp', ppGreenCard, ppC2hs, ppHsc2hs,
                                ppHappy, ppAlex, ppUnlit, platformDefines
                               )
    where

import Prelude ()
import Distribution.Compat.Prelude
import Distribution.Compat.Stack

import Distribution.Simple.PreProcess.Unlit
import Distribution.Backpack.DescribeUnitId
import Distribution.Package
import qualified Distribution.ModuleName as ModuleName
import Distribution.ModuleName (ModuleName)
import Distribution.PackageDescription as PD
import qualified Distribution.InstalledPackageInfo as Installed
import qualified Distribution.Simple.PackageIndex as PackageIndex
import Distribution.Simple.CCompiler
import Distribution.Simple.Compiler
import Distribution.Simple.LocalBuildInfo
import Distribution.Simple.BuildPaths
import Distribution.Simple.Utils
import Distribution.Simple.Program
import Distribution.Simple.Program.ResponseFile
import Distribution.Simple.Test.LibV09
import Distribution.System
import Distribution.Pretty
import Distribution.Version
import Distribution.Verbosity
import Distribution.Utils.Path

import System.Directory (doesFileExist)
import System.Info (os, arch)
import System.FilePath (splitExtension, dropExtensions, (</>), (<.>),
                        takeDirectory, normalise, replaceExtension,
                        takeExtensions)

-- |The interface to a preprocessor, which may be implemented using an
-- external program, but need not be.  The arguments are the name of
-- the input file, the name of the output file and a verbosity level.
-- Here is a simple example that merely prepends a comment to the given
-- source file:
--
-- > ppTestHandler :: PreProcessor
-- > ppTestHandler =
-- >   PreProcessor {
-- >     platformIndependent = True,
-- >     runPreProcessor = mkSimplePreProcessor $ \inFile outFile verbosity ->
-- >       do info verbosity (inFile++" has been preprocessed to "++outFile)
-- >          stuff <- readFile inFile
-- >          writeFile outFile ("-- preprocessed as a test\n\n" ++ stuff)
-- >          return ExitSuccess
--
-- We split the input and output file names into a base directory and the
-- rest of the file name. The input base dir is the path in the list of search
-- dirs that this file was found in. The output base dir is the build dir where
-- all the generated source files are put.
--
-- The reason for splitting it up this way is that some pre-processors don't
-- simply generate one output .hs file from one input file but have
-- dependencies on other generated files (notably c2hs, where building one
-- .hs file may require reading other .chi files, and then compiling the .hs
-- file may require reading a generated .h file). In these cases the generated
-- files need to embed relative path names to each other (eg the generated .hs
-- file mentions the .h file in the FFI imports). This path must be relative to
-- the base directory where the generated files are located, it cannot be
-- relative to the top level of the build tree because the compilers do not
-- look for .h files relative to there, ie we do not use \"-I .\", instead we
-- use \"-I dist\/build\" (or whatever dist dir has been set by the user)
--
-- Most pre-processors do not care of course, so mkSimplePreProcessor and
-- runSimplePreProcessor functions handle the simple case.
--
data PreProcessor = PreProcessor {

  -- Is the output of the pre-processor platform independent? eg happy output
  -- is portable haskell but c2hs's output is platform dependent.
  -- This matters since only platform independent generated code can be
  -- included into a source tarball.
  PreProcessor -> Bool
platformIndependent :: Bool,

  -- TODO: deal with pre-processors that have implementation dependent output
  --       eg alex and happy have --ghc flags. However we can't really include
  --       ghc-specific code into supposedly portable source tarballs.

  PreProcessor
-> (String, String) -> (String, String) -> Verbosity -> IO ()
runPreProcessor :: (FilePath, FilePath) -- Location of the source file relative to a base dir
                  -> (FilePath, FilePath) -- Output file name, relative to an output base dir
                  -> Verbosity -- verbosity
                  -> IO ()     -- Should exit if the preprocessor fails
  }

-- | Function to determine paths to possible extra C sources for a
-- preprocessor: just takes the path to the build directory and uses
-- this to search for C sources with names that match the
-- preprocessor's output name format.
type PreProcessorExtras = FilePath -> IO [FilePath]


mkSimplePreProcessor :: (FilePath -> FilePath -> Verbosity -> IO ())
                      -> (FilePath, FilePath)
                      -> (FilePath, FilePath) -> Verbosity -> IO ()
mkSimplePreProcessor :: (String -> String -> Verbosity -> IO ())
-> (String, String) -> (String, String) -> Verbosity -> IO ()
mkSimplePreProcessor String -> String -> Verbosity -> IO ()
simplePP
  (String
inBaseDir, String
inRelativeFile)
  (String
outBaseDir, String
outRelativeFile) Verbosity
verbosity = String -> String -> Verbosity -> IO ()
simplePP String
inFile String
outFile Verbosity
verbosity
  where inFile :: String
inFile  = String -> String
normalise (String
inBaseDir  String -> String -> String
</> String
inRelativeFile)
        outFile :: String
outFile = String -> String
normalise (String
outBaseDir String -> String -> String
</> String
outRelativeFile)

runSimplePreProcessor :: PreProcessor -> FilePath -> FilePath -> Verbosity
                      -> IO ()
runSimplePreProcessor :: PreProcessor -> String -> String -> Verbosity -> IO ()
runSimplePreProcessor PreProcessor
pp String
inFile String
outFile Verbosity
verbosity =
  PreProcessor
-> (String, String) -> (String, String) -> Verbosity -> IO ()
runPreProcessor PreProcessor
pp (String
".", String
inFile) (String
".", String
outFile) Verbosity
verbosity

-- |A preprocessor for turning non-Haskell files with the given extension
-- into plain Haskell source files.
type PPSuffixHandler
    = (String, BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor)

-- | Apply preprocessors to the sources from 'hsSourceDirs' for a given
-- component (lib, exe, or test suite).
--
-- XXX: This is terrible
preprocessComponent :: PackageDescription
                    -> Component
                    -> LocalBuildInfo
                    -> ComponentLocalBuildInfo
                    -> Bool
                    -> Verbosity
                    -> [PPSuffixHandler]
                    -> IO ()
preprocessComponent :: PackageDescription
-> Component
-> LocalBuildInfo
-> ComponentLocalBuildInfo
-> Bool
-> Verbosity
-> [PPSuffixHandler]
-> IO ()
preprocessComponent PackageDescription
pd Component
comp LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi Bool
isSrcDist Verbosity
verbosity [PPSuffixHandler]
handlers = do
 -- NB: never report instantiation here; we'll report it properly when
 -- building.
 forall a.
Pretty a =>
Verbosity
-> String
-> PackageIdentifier
-> ComponentName
-> Maybe [(ModuleName, a)]
-> IO ()
setupMessage' Verbosity
verbosity String
"Preprocessing" (forall pkg. Package pkg => pkg -> PackageIdentifier
packageId PackageDescription
pd)
    (ComponentLocalBuildInfo -> ComponentName
componentLocalName ComponentLocalBuildInfo
clbi) (forall a. Maybe a
Nothing :: Maybe [(ModuleName, Module)])
 case Component
comp of
  (CLib lib :: Library
lib@Library{ libBuildInfo :: Library -> BuildInfo
libBuildInfo = BuildInfo
bi }) -> do
    let dirs :: [String]
dirs = forall a b. (a -> b) -> [a] -> [b]
map forall from to. SymbolicPath from to -> String
getSymbolicPath (BuildInfo -> [SymbolicPath PackageDir SourceDir]
hsSourceDirs BuildInfo
bi) forall a. [a] -> [a] -> [a]
++
             [ LocalBuildInfo -> ComponentLocalBuildInfo -> String
autogenComponentModulesDir LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi ,LocalBuildInfo -> String
autogenPackageModulesDir LocalBuildInfo
lbi]
    forall (t :: * -> *) (f :: * -> *) a b.
(Foldable t, Applicative f) =>
t a -> (a -> f b) -> f ()
for_ (forall a b. (a -> b) -> [a] -> [b]
map ModuleName -> String
ModuleName.toFilePath forall a b. (a -> b) -> a -> b
$ Library -> ComponentLocalBuildInfo -> [ModuleName]
allLibModules Library
lib ComponentLocalBuildInfo
clbi) forall a b. (a -> b) -> a -> b
$
      [String] -> String -> [(String, PreProcessor)] -> String -> IO ()
pre [String]
dirs (LocalBuildInfo -> ComponentLocalBuildInfo -> String
componentBuildDir LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi) (BuildInfo -> [(String, PreProcessor)]
localHandlers BuildInfo
bi)
  (CFLib flib :: ForeignLib
flib@ForeignLib { foreignLibBuildInfo :: ForeignLib -> BuildInfo
foreignLibBuildInfo = BuildInfo
bi, foreignLibName :: ForeignLib -> UnqualComponentName
foreignLibName = UnqualComponentName
nm }) -> do
    let nm' :: String
nm' = UnqualComponentName -> String
unUnqualComponentName UnqualComponentName
nm
    let flibDir :: String
flibDir = LocalBuildInfo -> String
buildDir LocalBuildInfo
lbi String -> String -> String
</> String
nm' String -> String -> String
</> String
nm' forall a. [a] -> [a] -> [a]
++ String
"-tmp"
        dirs :: [String]
dirs    = forall a b. (a -> b) -> [a] -> [b]
map forall from to. SymbolicPath from to -> String
getSymbolicPath (BuildInfo -> [SymbolicPath PackageDir SourceDir]
hsSourceDirs BuildInfo
bi) forall a. [a] -> [a] -> [a]
++ [LocalBuildInfo -> ComponentLocalBuildInfo -> String
autogenComponentModulesDir LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi
                                     ,LocalBuildInfo -> String
autogenPackageModulesDir LocalBuildInfo
lbi]
    forall (t :: * -> *) (f :: * -> *) a b.
(Foldable t, Applicative f) =>
t a -> (a -> f b) -> f ()
for_ (forall a b. (a -> b) -> [a] -> [b]
map ModuleName -> String
ModuleName.toFilePath forall a b. (a -> b) -> a -> b
$ ForeignLib -> [ModuleName]
foreignLibModules ForeignLib
flib) forall a b. (a -> b) -> a -> b
$
      [String] -> String -> [(String, PreProcessor)] -> String -> IO ()
pre [String]
dirs String
flibDir (BuildInfo -> [(String, PreProcessor)]
localHandlers BuildInfo
bi)
  (CExe exe :: Executable
exe@Executable { buildInfo :: Executable -> BuildInfo
buildInfo = BuildInfo
bi, exeName :: Executable -> UnqualComponentName
exeName = UnqualComponentName
nm }) -> do
    let nm' :: String
nm' = UnqualComponentName -> String
unUnqualComponentName UnqualComponentName
nm
    let exeDir :: String
exeDir = LocalBuildInfo -> String
buildDir LocalBuildInfo
lbi String -> String -> String
</> String
nm' String -> String -> String
</> String
nm' forall a. [a] -> [a] -> [a]
++ String
"-tmp"
        dirs :: [String]
dirs   = forall a b. (a -> b) -> [a] -> [b]
map forall from to. SymbolicPath from to -> String
getSymbolicPath (BuildInfo -> [SymbolicPath PackageDir SourceDir]
hsSourceDirs BuildInfo
bi) forall a. [a] -> [a] -> [a]
++ [LocalBuildInfo -> ComponentLocalBuildInfo -> String
autogenComponentModulesDir LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi
                                    ,LocalBuildInfo -> String
autogenPackageModulesDir LocalBuildInfo
lbi]
    forall (t :: * -> *) (f :: * -> *) a b.
(Foldable t, Applicative f) =>
t a -> (a -> f b) -> f ()
for_ (forall a b. (a -> b) -> [a] -> [b]
map ModuleName -> String
ModuleName.toFilePath forall a b. (a -> b) -> a -> b
$ BuildInfo -> [ModuleName]
otherModules BuildInfo
bi) forall a b. (a -> b) -> a -> b
$
      [String] -> String -> [(String, PreProcessor)] -> String -> IO ()
pre [String]
dirs String
exeDir (BuildInfo -> [(String, PreProcessor)]
localHandlers BuildInfo
bi)
    [String] -> String -> [(String, PreProcessor)] -> String -> IO ()
pre (forall a b. (a -> b) -> [a] -> [b]
map forall from to. SymbolicPath from to -> String
getSymbolicPath (BuildInfo -> [SymbolicPath PackageDir SourceDir]
hsSourceDirs BuildInfo
bi)) String
exeDir (BuildInfo -> [(String, PreProcessor)]
localHandlers BuildInfo
bi) forall a b. (a -> b) -> a -> b
$
      String -> String
dropExtensions (Executable -> String
modulePath Executable
exe)
  CTest test :: TestSuite
test@TestSuite{ testName :: TestSuite -> UnqualComponentName
testName = UnqualComponentName
nm } -> do
    let nm' :: String
nm' = UnqualComponentName -> String
unUnqualComponentName UnqualComponentName
nm
    case TestSuite -> TestSuiteInterface
testInterface TestSuite
test of
      TestSuiteExeV10 Version
_ String
f ->
          TestSuite -> String -> String -> IO ()
preProcessTest TestSuite
test String
f forall a b. (a -> b) -> a -> b
$ LocalBuildInfo -> String
buildDir LocalBuildInfo
lbi String -> String -> String
</> String
nm' String -> String -> String
</> String
nm' forall a. [a] -> [a] -> [a]
++ String
"-tmp"
      TestSuiteLibV09 Version
_ ModuleName
_ -> do
          let testDir :: String
testDir = LocalBuildInfo -> String
buildDir LocalBuildInfo
lbi String -> String -> String
</> TestSuite -> String
stubName TestSuite
test
                  String -> String -> String
</> TestSuite -> String
stubName TestSuite
test forall a. [a] -> [a] -> [a]
++ String
"-tmp"
          TestSuite -> String -> IO ()
writeSimpleTestStub TestSuite
test String
testDir
          TestSuite -> String -> String -> IO ()
preProcessTest TestSuite
test (TestSuite -> String
stubFilePath TestSuite
test) String
testDir
      TestSuiteUnsupported TestType
tt ->
          forall a. Verbosity -> String -> IO a
die' Verbosity
verbosity forall a b. (a -> b) -> a -> b
$ String
"No support for preprocessing test "
                        forall a. [a] -> [a] -> [a]
++ String
"suite type " forall a. [a] -> [a] -> [a]
++ forall a. Pretty a => a -> String
prettyShow TestType
tt
  CBench bm :: Benchmark
bm@Benchmark{ benchmarkName :: Benchmark -> UnqualComponentName
benchmarkName = UnqualComponentName
nm } -> do
    let nm' :: String
nm' = UnqualComponentName -> String
unUnqualComponentName UnqualComponentName
nm
    case Benchmark -> BenchmarkInterface
benchmarkInterface Benchmark
bm of
      BenchmarkExeV10 Version
_ String
f ->
          Benchmark -> String -> String -> IO ()
preProcessBench Benchmark
bm String
f forall a b. (a -> b) -> a -> b
$ LocalBuildInfo -> String
buildDir LocalBuildInfo
lbi String -> String -> String
</> String
nm' String -> String -> String
</> String
nm' forall a. [a] -> [a] -> [a]
++ String
"-tmp"
      BenchmarkUnsupported BenchmarkType
tt ->
          forall a. Verbosity -> String -> IO a
die' Verbosity
verbosity forall a b. (a -> b) -> a -> b
$ String
"No support for preprocessing benchmark "
                        forall a. [a] -> [a] -> [a]
++ String
"type " forall a. [a] -> [a] -> [a]
++ forall a. Pretty a => a -> String
prettyShow BenchmarkType
tt
  where
    builtinHaskellSuffixes :: [String]
builtinHaskellSuffixes = [String
"hs", String
"lhs", String
"hsig", String
"lhsig"]
    builtinCSuffixes :: [String]
builtinCSuffixes       = [String]
cSourceExtensions
    builtinSuffixes :: [String]
builtinSuffixes        = [String]
builtinHaskellSuffixes forall a. [a] -> [a] -> [a]
++ [String]
builtinCSuffixes
    localHandlers :: BuildInfo -> [(String, PreProcessor)]
localHandlers BuildInfo
bi = [(String
ext, BuildInfo
-> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
h BuildInfo
bi LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi) | (String
ext, BuildInfo
-> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
h) <- [PPSuffixHandler]
handlers]
    pre :: [String] -> String -> [(String, PreProcessor)] -> String -> IO ()
pre [String]
dirs String
dir [(String, PreProcessor)]
lhndlrs String
fp =
      [SymbolicPath PackageDir SourceDir]
-> String
-> Bool
-> String
-> Verbosity
-> [String]
-> [(String, PreProcessor)]
-> IO ()
preprocessFile (forall a b. (a -> b) -> [a] -> [b]
map forall from to. String -> SymbolicPath from to
unsafeMakeSymbolicPath [String]
dirs) String
dir Bool
isSrcDist String
fp Verbosity
verbosity [String]
builtinSuffixes [(String, PreProcessor)]
lhndlrs
    preProcessTest :: TestSuite -> String -> String -> IO ()
preProcessTest TestSuite
test = BuildInfo -> [ModuleName] -> String -> String -> IO ()
preProcessComponent (TestSuite -> BuildInfo
testBuildInfo TestSuite
test)
                          (TestSuite -> [ModuleName]
testModules TestSuite
test)
    preProcessBench :: Benchmark -> String -> String -> IO ()
preProcessBench Benchmark
bm = BuildInfo -> [ModuleName] -> String -> String -> IO ()
preProcessComponent (Benchmark -> BuildInfo
benchmarkBuildInfo Benchmark
bm)
                         (Benchmark -> [ModuleName]
benchmarkModules Benchmark
bm)

    preProcessComponent
        :: BuildInfo
        -> [ModuleName]
        -> FilePath
        -> FilePath
        -> IO ()
    preProcessComponent :: BuildInfo -> [ModuleName] -> String -> String -> IO ()
preProcessComponent BuildInfo
bi [ModuleName]
modules String
exePath String
dir = do
        let biHandlers :: [(String, PreProcessor)]
biHandlers = BuildInfo -> [(String, PreProcessor)]
localHandlers BuildInfo
bi
            sourceDirs :: [String]
sourceDirs = forall a b. (a -> b) -> [a] -> [b]
map forall from to. SymbolicPath from to -> String
getSymbolicPath (BuildInfo -> [SymbolicPath PackageDir SourceDir]
hsSourceDirs BuildInfo
bi) forall a. [a] -> [a] -> [a]
++ [ LocalBuildInfo -> ComponentLocalBuildInfo -> String
autogenComponentModulesDir LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi
                                            , LocalBuildInfo -> String
autogenPackageModulesDir LocalBuildInfo
lbi ]
        forall (t :: * -> *) (m :: * -> *) a.
(Foldable t, Monad m) =>
t (m a) -> m ()
sequence_ [ [SymbolicPath PackageDir SourceDir]
-> String
-> Bool
-> String
-> Verbosity
-> [String]
-> [(String, PreProcessor)]
-> IO ()
preprocessFile (forall a b. (a -> b) -> [a] -> [b]
map forall from to. String -> SymbolicPath from to
unsafeMakeSymbolicPath [String]
sourceDirs) String
dir Bool
isSrcDist
                (ModuleName -> String
ModuleName.toFilePath ModuleName
modu) Verbosity
verbosity [String]
builtinSuffixes
                [(String, PreProcessor)]
biHandlers
                | ModuleName
modu <- [ModuleName]
modules ]

        -- XXX: what we do here (re SymbolicPath dir)
        -- XXX: 2020-10-15 do we rely here on CWD being the PackageDir?
        [SymbolicPath PackageDir SourceDir]
-> String
-> Bool
-> String
-> Verbosity
-> [String]
-> [(String, PreProcessor)]
-> IO ()
preprocessFile (forall from to. String -> SymbolicPath from to
unsafeMakeSymbolicPath String
dir forall a. a -> [a] -> [a]
: BuildInfo -> [SymbolicPath PackageDir SourceDir]
hsSourceDirs BuildInfo
bi) String
dir Bool
isSrcDist
            (String -> String
dropExtensions forall a b. (a -> b) -> a -> b
$ String
exePath) Verbosity
verbosity
            [String]
builtinSuffixes [(String, PreProcessor)]
biHandlers

--TODO: try to list all the modules that could not be found
--      not just the first one. It's annoying and slow due to the need
--      to reconfigure after editing the .cabal file each time.

-- |Find the first extension of the file that exists, and preprocess it
-- if required.
preprocessFile
    :: [SymbolicPath PackageDir SourceDir] -- ^ source directories

    -> FilePath                 -- ^build directory
    -> Bool                     -- ^preprocess for sdist
    -> FilePath                 -- ^module file name
    -> Verbosity                -- ^verbosity
    -> [String]                 -- ^builtin suffixes
    -> [(String, PreProcessor)] -- ^possible preprocessors
    -> IO ()
preprocessFile :: [SymbolicPath PackageDir SourceDir]
-> String
-> Bool
-> String
-> Verbosity
-> [String]
-> [(String, PreProcessor)]
-> IO ()
preprocessFile [SymbolicPath PackageDir SourceDir]
searchLoc String
buildLoc Bool
forSDist String
baseFile Verbosity
verbosity [String]
builtinSuffixes [(String, PreProcessor)]
handlers = do
    -- look for files in the various source dirs with this module name
    -- and a file extension of a known preprocessor
    Maybe (String, String)
psrcFiles <- [String] -> [String] -> String -> IO (Maybe (String, String))
findFileWithExtension' (forall a b. (a -> b) -> [a] -> [b]
map forall a b. (a, b) -> a
fst [(String, PreProcessor)]
handlers) (forall a b. (a -> b) -> [a] -> [b]
map forall from to. SymbolicPath from to -> String
getSymbolicPath [SymbolicPath PackageDir SourceDir]
searchLoc) String
baseFile
    case Maybe (String, String)
psrcFiles of
        -- no preprocessor file exists, look for an ordinary source file
        -- just to make sure one actually exists at all for this module.
        -- Note: by looking in the target/output build dir too, we allow
        -- source files to appear magically in the target build dir without
        -- any corresponding "real" source file. This lets custom Setup.hs
        -- files generate source modules directly into the build dir without
        -- the rest of the build system being aware of it (somewhat dodgy)
      Maybe (String, String)
Nothing -> do
                 Maybe String
bsrcFiles <- [String] -> [String] -> String -> IO (Maybe String)
findFileWithExtension [String]
builtinSuffixes (String
buildLoc forall a. a -> [a] -> [a]
: forall a b. (a -> b) -> [a] -> [b]
map forall from to. SymbolicPath from to -> String
getSymbolicPath [SymbolicPath PackageDir SourceDir]
searchLoc) String
baseFile
                 case Maybe String
bsrcFiles of
                  Maybe String
Nothing ->
                    forall a. Verbosity -> String -> IO a
die' Verbosity
verbosity forall a b. (a -> b) -> a -> b
$ String
"can't find source for " forall a. [a] -> [a] -> [a]
++ String
baseFile
                                  forall a. [a] -> [a] -> [a]
++ String
" in " forall a. [a] -> [a] -> [a]
++ forall a. [a] -> [[a]] -> [a]
intercalate String
", " (forall a b. (a -> b) -> [a] -> [b]
map forall from to. SymbolicPath from to -> String
getSymbolicPath [SymbolicPath PackageDir SourceDir]
searchLoc)
                  Maybe String
_       -> forall (m :: * -> *) a. Monad m => a -> m a
return ()
        -- found a pre-processable file in one of the source dirs
      Just (String
psrcLoc, String
psrcRelFile) -> do
            let (String
srcStem, String
ext) = String -> (String, String)
splitExtension String
psrcRelFile
                psrcFile :: String
psrcFile = String
psrcLoc String -> String -> String
</> String
psrcRelFile
                pp :: PreProcessor
pp = forall a. a -> Maybe a -> a
fromMaybe (forall a. HasCallStack => String -> a
error String
"Distribution.Simple.PreProcess: Just expected")
                               (forall a b. Eq a => a -> [(a, b)] -> Maybe b
lookup (forall a. [a] -> [a]
safeTail String
ext) [(String, PreProcessor)]
handlers)
            -- Preprocessing files for 'sdist' is different from preprocessing
            -- for 'build'.  When preprocessing for sdist we preprocess to
            -- avoid that the user has to have the preprocessors available.
            -- ATM, we don't have a way to specify which files are to be
            -- preprocessed and which not, so for sdist we only process
            -- platform independent files and put them into the 'buildLoc'
            -- (which we assume is set to the temp. directory that will become
            -- the tarball).
            --TODO: eliminate sdist variant, just supply different handlers
            forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (Bool -> Bool
not Bool
forSDist Bool -> Bool -> Bool
|| Bool
forSDist Bool -> Bool -> Bool
&& PreProcessor -> Bool
platformIndependent PreProcessor
pp) forall a b. (a -> b) -> a -> b
$ do
              -- look for existing pre-processed source file in the dest dir to
              -- see if we really have to re-run the preprocessor.
              Maybe String
ppsrcFiles <- [String] -> [String] -> String -> IO (Maybe String)
findFileWithExtension [String]
builtinSuffixes [String
buildLoc] String
baseFile
              Bool
recomp <- case Maybe String
ppsrcFiles of
                          Maybe String
Nothing -> forall (m :: * -> *) a. Monad m => a -> m a
return Bool
True
                          Just String
ppsrcFile ->
                              String
psrcFile String -> String -> IO Bool
`moreRecentFile` String
ppsrcFile
              forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when Bool
recomp forall a b. (a -> b) -> a -> b
$ do
                let destDir :: String
destDir = String
buildLoc String -> String -> String
</> String -> String
dirName String
srcStem
                Verbosity -> Bool -> String -> IO ()
createDirectoryIfMissingVerbose Verbosity
verbosity Bool
True String
destDir
                PreProcessor -> (String, String) -> (String, String) -> IO ()
runPreProcessorWithHsBootHack PreProcessor
pp
                   (String
psrcLoc, String
psrcRelFile)
                   (String
buildLoc, String
srcStem String -> String -> String
<.> String
"hs")

  where
    dirName :: String -> String
dirName = String -> String
takeDirectory

    -- FIXME: This is a somewhat nasty hack. GHC requires that hs-boot files
    -- be in the same place as the hs files, so if we put the hs file in dist/
    -- then we need to copy the hs-boot file there too. This should probably be
    -- done another way. Possibly we should also be looking for .lhs-boot
    -- files, but I think that preprocessors only produce .hs files.
    runPreProcessorWithHsBootHack :: PreProcessor -> (String, String) -> (String, String) -> IO ()
runPreProcessorWithHsBootHack PreProcessor
pp
      (String
inBaseDir,  String
inRelativeFile)
      (String
outBaseDir, String
outRelativeFile) = do
        PreProcessor
-> (String, String) -> (String, String) -> Verbosity -> IO ()
runPreProcessor PreProcessor
pp
          (String
inBaseDir, String
inRelativeFile)
          (String
outBaseDir, String
outRelativeFile) Verbosity
verbosity

        Bool
exists <- String -> IO Bool
doesFileExist String
inBoot
        forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when Bool
exists forall a b. (a -> b) -> a -> b
$ Verbosity -> String -> String -> IO ()
copyFileVerbose Verbosity
verbosity String
inBoot String
outBoot

      where
        inBoot :: String
inBoot  = String -> String -> String
replaceExtension String
inFile  String
"hs-boot"
        outBoot :: String
outBoot = String -> String -> String
replaceExtension String
outFile String
"hs-boot"

        inFile :: String
inFile  = String -> String
normalise (String
inBaseDir  String -> String -> String
</> String
inRelativeFile)
        outFile :: String
outFile = String -> String
normalise (String
outBaseDir String -> String -> String
</> String
outRelativeFile)

-- ------------------------------------------------------------
-- * known preprocessors
-- ------------------------------------------------------------

ppGreenCard :: BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppGreenCard :: BuildInfo
-> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppGreenCard BuildInfo
_ LocalBuildInfo
lbi ComponentLocalBuildInfo
_
    = PreProcessor {
        platformIndependent :: Bool
platformIndependent = Bool
False,
        runPreProcessor :: (String, String) -> (String, String) -> Verbosity -> IO ()
runPreProcessor = (String -> String -> Verbosity -> IO ())
-> (String, String) -> (String, String) -> Verbosity -> IO ()
mkSimplePreProcessor forall a b. (a -> b) -> a -> b
$ \String
inFile String
outFile Verbosity
verbosity ->
          Verbosity -> Program -> ProgramDb -> [String] -> IO ()
runDbProgram Verbosity
verbosity Program
greencardProgram (LocalBuildInfo -> ProgramDb
withPrograms LocalBuildInfo
lbi)
              ([String
"-tffi", String
"-o" forall a. [a] -> [a] -> [a]
++ String
outFile, String
inFile])
      }

-- This one is useful for preprocessors that can't handle literate source.
-- We also need a way to chain preprocessors.
ppUnlit :: PreProcessor
ppUnlit :: PreProcessor
ppUnlit =
  PreProcessor {
    platformIndependent :: Bool
platformIndependent = Bool
True,
    runPreProcessor :: (String, String) -> (String, String) -> Verbosity -> IO ()
runPreProcessor = (String -> String -> Verbosity -> IO ())
-> (String, String) -> (String, String) -> Verbosity -> IO ()
mkSimplePreProcessor forall a b. (a -> b) -> a -> b
$ \String
inFile String
outFile Verbosity
verbosity ->
      forall a. String -> (String -> IO a) -> IO a
withUTF8FileContents String
inFile forall a b. (a -> b) -> a -> b
$ \String
contents ->
        forall a c b. (a -> c) -> (b -> c) -> Either a b -> c
either (String -> String -> IO ()
writeUTF8File String
outFile) (forall a. Verbosity -> String -> IO a
die' Verbosity
verbosity) (String -> String -> Either String String
unlit String
inFile String
contents)
  }

ppCpp :: BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppCpp :: BuildInfo
-> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppCpp = [String]
-> BuildInfo
-> LocalBuildInfo
-> ComponentLocalBuildInfo
-> PreProcessor
ppCpp' []

ppCpp' :: [String] -> BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppCpp' :: [String]
-> BuildInfo
-> LocalBuildInfo
-> ComponentLocalBuildInfo
-> PreProcessor
ppCpp' [String]
extraArgs BuildInfo
bi LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi =
  case Compiler -> CompilerFlavor
compilerFlavor (LocalBuildInfo -> Compiler
compiler LocalBuildInfo
lbi) of
    CompilerFlavor
GHC   -> Program
-> (Version -> Bool)
-> [String]
-> BuildInfo
-> LocalBuildInfo
-> ComponentLocalBuildInfo
-> PreProcessor
ppGhcCpp Program
ghcProgram   (forall a b. a -> b -> a
const Bool
True) [String]
args BuildInfo
bi LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi
    CompilerFlavor
GHCJS -> Program
-> (Version -> Bool)
-> [String]
-> BuildInfo
-> LocalBuildInfo
-> ComponentLocalBuildInfo
-> PreProcessor
ppGhcCpp Program
ghcjsProgram (forall a b. a -> b -> a
const Bool
True) [String]
args BuildInfo
bi LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi
    CompilerFlavor
_     -> [String]
-> BuildInfo
-> LocalBuildInfo
-> ComponentLocalBuildInfo
-> PreProcessor
ppCpphs  [String]
args BuildInfo
bi LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi
  where cppArgs :: [String]
cppArgs = BuildInfo -> LocalBuildInfo -> [String]
getCppOptions BuildInfo
bi LocalBuildInfo
lbi
        args :: [String]
args    = [String]
cppArgs forall a. [a] -> [a] -> [a]
++ [String]
extraArgs

ppGhcCpp :: Program -> (Version -> Bool)
         -> [String] -> BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppGhcCpp :: Program
-> (Version -> Bool)
-> [String]
-> BuildInfo
-> LocalBuildInfo
-> ComponentLocalBuildInfo
-> PreProcessor
ppGhcCpp Program
program Version -> Bool
xHs [String]
extraArgs BuildInfo
_bi LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi =
  PreProcessor {
    platformIndependent :: Bool
platformIndependent = Bool
False,
    runPreProcessor :: (String, String) -> (String, String) -> Verbosity -> IO ()
runPreProcessor = (String -> String -> Verbosity -> IO ())
-> (String, String) -> (String, String) -> Verbosity -> IO ()
mkSimplePreProcessor forall a b. (a -> b) -> a -> b
$ \String
inFile String
outFile Verbosity
verbosity -> do
      (ConfiguredProgram
prog, Version
version, ProgramDb
_) <- Verbosity
-> Program
-> VersionRange
-> ProgramDb
-> IO (ConfiguredProgram, Version, ProgramDb)
requireProgramVersion Verbosity
verbosity
                              Program
program VersionRange
anyVersion (LocalBuildInfo -> ProgramDb
withPrograms LocalBuildInfo
lbi)
      Verbosity -> ConfiguredProgram -> [String] -> IO ()
runProgram Verbosity
verbosity ConfiguredProgram
prog forall a b. (a -> b) -> a -> b
$
          [String
"-E", String
"-cpp"]
          -- This is a bit of an ugly hack. We're going to
          -- unlit the file ourselves later on if appropriate,
          -- so we need GHC not to unlit it now or it'll get
          -- double-unlitted. In the future we might switch to
          -- using cpphs --unlit instead.
       forall a. [a] -> [a] -> [a]
++ (if Version -> Bool
xHs Version
version then [String
"-x", String
"hs"] else [])
       forall a. [a] -> [a] -> [a]
++ [ String
"-optP-include", String
"-optP"forall a. [a] -> [a] -> [a]
++ (LocalBuildInfo -> ComponentLocalBuildInfo -> String
autogenComponentModulesDir LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi String -> String -> String
</> String
cppHeaderName) ]
       forall a. [a] -> [a] -> [a]
++ [String
"-o", String
outFile, String
inFile]
       forall a. [a] -> [a] -> [a]
++ [String]
extraArgs
  }

ppCpphs :: [String] -> BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppCpphs :: [String]
-> BuildInfo
-> LocalBuildInfo
-> ComponentLocalBuildInfo
-> PreProcessor
ppCpphs [String]
extraArgs BuildInfo
_bi LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi =
  PreProcessor {
    platformIndependent :: Bool
platformIndependent = Bool
False,
    runPreProcessor :: (String, String) -> (String, String) -> Verbosity -> IO ()
runPreProcessor = (String -> String -> Verbosity -> IO ())
-> (String, String) -> (String, String) -> Verbosity -> IO ()
mkSimplePreProcessor forall a b. (a -> b) -> a -> b
$ \String
inFile String
outFile Verbosity
verbosity -> do
      (ConfiguredProgram
cpphsProg, Version
cpphsVersion, ProgramDb
_) <- Verbosity
-> Program
-> VersionRange
-> ProgramDb
-> IO (ConfiguredProgram, Version, ProgramDb)
requireProgramVersion Verbosity
verbosity
                                        Program
cpphsProgram VersionRange
anyVersion (LocalBuildInfo -> ProgramDb
withPrograms LocalBuildInfo
lbi)
      Verbosity -> ConfiguredProgram -> [String] -> IO ()
runProgram Verbosity
verbosity ConfiguredProgram
cpphsProg forall a b. (a -> b) -> a -> b
$
          (String
"-O" forall a. [a] -> [a] -> [a]
++ String
outFile) forall a. a -> [a] -> [a]
: String
inFile
        forall a. a -> [a] -> [a]
: String
"--noline" forall a. a -> [a] -> [a]
: String
"--strip"
        forall a. a -> [a] -> [a]
: (if Version
cpphsVersion forall a. Ord a => a -> a -> Bool
>= [Int] -> Version
mkVersion [Int
1,Int
6]
             then [String
"--include="forall a. [a] -> [a] -> [a]
++ (LocalBuildInfo -> ComponentLocalBuildInfo -> String
autogenComponentModulesDir LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi String -> String -> String
</> String
cppHeaderName)]
             else [])
        forall a. [a] -> [a] -> [a]
++ [String]
extraArgs
  }

ppHsc2hs :: BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppHsc2hs :: BuildInfo
-> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppHsc2hs BuildInfo
bi LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi =
  PreProcessor {
    platformIndependent :: Bool
platformIndependent = Bool
False,
    runPreProcessor :: (String, String) -> (String, String) -> Verbosity -> IO ()
runPreProcessor = (String -> String -> Verbosity -> IO ())
-> (String, String) -> (String, String) -> Verbosity -> IO ()
mkSimplePreProcessor forall a b. (a -> b) -> a -> b
$ \String
inFile String
outFile Verbosity
verbosity -> do
      (ConfiguredProgram
gccProg, ProgramDb
_) <- Verbosity
-> Program -> ProgramDb -> IO (ConfiguredProgram, ProgramDb)
requireProgram Verbosity
verbosity Program
gccProgram (LocalBuildInfo -> ProgramDb
withPrograms LocalBuildInfo
lbi)
      (ConfiguredProgram
hsc2hsProg, Version
hsc2hsVersion, ProgramDb
_) <- Verbosity
-> Program
-> VersionRange
-> ProgramDb
-> IO (ConfiguredProgram, Version, ProgramDb)
requireProgramVersion Verbosity
verbosity
                                          Program
hsc2hsProgram VersionRange
anyVersion (LocalBuildInfo -> ProgramDb
withPrograms LocalBuildInfo
lbi)
      -- See Trac #13896 and https://github.com/haskell/cabal/issues/3122.
      let isCross :: Bool
isCross = LocalBuildInfo -> Platform
hostPlatform LocalBuildInfo
lbi forall a. Eq a => a -> a -> Bool
/= Platform
buildPlatform
          prependCrossFlags :: [String] -> [String]
prependCrossFlags = if Bool
isCross then (String
"-x"forall a. a -> [a] -> [a]
:) else forall a. a -> a
id
      let hsc2hsSupportsResponseFiles :: Bool
hsc2hsSupportsResponseFiles = Version
hsc2hsVersion forall a. Ord a => a -> a -> Bool
>= [Int] -> Version
mkVersion [Int
0,Int
68,Int
4]
          pureArgs :: [String]
pureArgs = Version -> ConfiguredProgram -> String -> String -> [String]
genPureArgs Version
hsc2hsVersion ConfiguredProgram
gccProg String
inFile String
outFile
      if Bool
hsc2hsSupportsResponseFiles
      then forall a.
Verbosity
-> TempFileOptions
-> String
-> String
-> Maybe TextEncoding
-> [String]
-> (String -> IO a)
-> IO a
withResponseFile
             Verbosity
verbosity
             TempFileOptions
defaultTempFileOptions
             (String -> String
takeDirectory String
outFile)
             String
"hsc2hs-response.txt"
             forall a. Maybe a
Nothing
             [String]
pureArgs
             (\String
responseFileName ->
                Verbosity -> ConfiguredProgram -> [String] -> IO ()
runProgram Verbosity
verbosity ConfiguredProgram
hsc2hsProg ([String] -> [String]
prependCrossFlags [String
"@"forall a. [a] -> [a] -> [a]
++ String
responseFileName]))
      else Verbosity -> ConfiguredProgram -> [String] -> IO ()
runProgram Verbosity
verbosity ConfiguredProgram
hsc2hsProg ([String] -> [String]
prependCrossFlags [String]
pureArgs)
  }
  where
    -- Returns a list of command line arguments that can either be passed
    -- directly, or via a response file.
    genPureArgs :: Version -> ConfiguredProgram -> String -> String -> [String]
    genPureArgs :: Version -> ConfiguredProgram -> String -> String -> [String]
genPureArgs Version
hsc2hsVersion ConfiguredProgram
gccProg String
inFile String
outFile =
          -- Additional gcc options
          [ String
"--cflag=" forall a. [a] -> [a] -> [a]
++ String
opt | String
opt <- ConfiguredProgram -> [String]
programDefaultArgs  ConfiguredProgram
gccProg
                                    forall a. [a] -> [a] -> [a]
++ ConfiguredProgram -> [String]
programOverrideArgs ConfiguredProgram
gccProg ]
       forall a. [a] -> [a] -> [a]
++ [ String
"--lflag=" forall a. [a] -> [a] -> [a]
++ String
opt | String
opt <- ConfiguredProgram -> [String]
programDefaultArgs  ConfiguredProgram
gccProg
                                    forall a. [a] -> [a] -> [a]
++ ConfiguredProgram -> [String]
programOverrideArgs ConfiguredProgram
gccProg ]

          -- OSX frameworks:
       forall a. [a] -> [a] -> [a]
++ [ String
what forall a. [a] -> [a] -> [a]
++ String
"=-F" forall a. [a] -> [a] -> [a]
++ String
opt
          | Bool
isOSX
          , String
opt <- forall a. Eq a => [a] -> [a]
nub (forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
concatMap InstalledPackageInfo -> [String]
Installed.frameworkDirs [InstalledPackageInfo]
pkgs)
          , String
what <- [String
"--cflag", String
"--lflag"] ]
       forall a. [a] -> [a] -> [a]
++ [ String
"--lflag=" forall a. [a] -> [a] -> [a]
++ String
arg
          | Bool
isOSX
          , String
opt <- BuildInfo -> [String]
PD.frameworks BuildInfo
bi forall a. [a] -> [a] -> [a]
++ forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
concatMap InstalledPackageInfo -> [String]
Installed.frameworks [InstalledPackageInfo]
pkgs
          , String
arg <- [String
"-framework", String
opt] ]

          -- Note that on ELF systems, wherever we use -L, we must also use -R
          -- because presumably that -L dir is not on the normal path for the
          -- system's dynamic linker. This is needed because hsc2hs works by
          -- compiling a C program and then running it.

       forall a. [a] -> [a] -> [a]
++ [ String
"--cflag="   forall a. [a] -> [a] -> [a]
++ String
opt | String
opt <- LocalBuildInfo -> [String]
platformDefines LocalBuildInfo
lbi ]

          -- Options from the current package:
       forall a. [a] -> [a] -> [a]
++ [ String
"--cflag=-I" forall a. [a] -> [a] -> [a]
++ String
dir | String
dir <- BuildInfo -> [String]
PD.includeDirs  BuildInfo
bi ]
       forall a. [a] -> [a] -> [a]
++ [ String
"--cflag=-I" forall a. [a] -> [a] -> [a]
++ LocalBuildInfo -> String
buildDir LocalBuildInfo
lbi String -> String -> String
</> String
dir | String
dir <- BuildInfo -> [String]
PD.includeDirs BuildInfo
bi ]
       forall a. [a] -> [a] -> [a]
++ [ String
"--cflag="   forall a. [a] -> [a] -> [a]
++ String
opt | String
opt <- BuildInfo -> [String]
PD.ccOptions    BuildInfo
bi
                                      forall a. [a] -> [a] -> [a]
++ BuildInfo -> [String]
PD.cppOptions   BuildInfo
bi
                                      -- hsc2hs uses the C ABI
                                      -- We assume that there are only C sources
                                      -- and C++ functions are exported via a C
                                      -- interface and wrapped in a C source file.
                                      -- Therefore we do not supply C++ flags
                                      -- because there will not be C++ sources.
                                      --
                                      -- DO NOT add PD.cxxOptions unless this changes!
                                      ]
       forall a. [a] -> [a] -> [a]
++ [ String
"--cflag="   forall a. [a] -> [a] -> [a]
++ String
opt | String
opt <-
               [ String
"-I" forall a. [a] -> [a] -> [a]
++ LocalBuildInfo -> ComponentLocalBuildInfo -> String
autogenComponentModulesDir LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi,
                 String
"-I" forall a. [a] -> [a] -> [a]
++ LocalBuildInfo -> String
autogenPackageModulesDir LocalBuildInfo
lbi,
                 String
"-include", LocalBuildInfo -> ComponentLocalBuildInfo -> String
autogenComponentModulesDir LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi String -> String -> String
</> String
cppHeaderName ] ]
       forall a. [a] -> [a] -> [a]
++ [ String
"--lflag=-L" forall a. [a] -> [a] -> [a]
++ String
opt | String
opt <- BuildInfo -> [String]
PD.extraLibDirs BuildInfo
bi ]
       forall a. [a] -> [a] -> [a]
++ [ String
"--lflag=-Wl,-R," forall a. [a] -> [a] -> [a]
++ String
opt | Bool
isELF
                                , String
opt <- BuildInfo -> [String]
PD.extraLibDirs BuildInfo
bi ]
       forall a. [a] -> [a] -> [a]
++ [ String
"--lflag=-l" forall a. [a] -> [a] -> [a]
++ String
opt | String
opt <- BuildInfo -> [String]
PD.extraLibs    BuildInfo
bi ]
       forall a. [a] -> [a] -> [a]
++ [ String
"--lflag="   forall a. [a] -> [a] -> [a]
++ String
opt | String
opt <- BuildInfo -> [String]
PD.ldOptions    BuildInfo
bi ]

          -- Options from dependent packages
       forall a. [a] -> [a] -> [a]
++ [ String
"--cflag=" forall a. [a] -> [a] -> [a]
++ String
opt
          | InstalledPackageInfo
pkg <- [InstalledPackageInfo]
pkgs
          , String
opt <- [ String
"-I" forall a. [a] -> [a] -> [a]
++ String
opt | String
opt <- InstalledPackageInfo -> [String]
Installed.includeDirs InstalledPackageInfo
pkg ]
                forall a. [a] -> [a] -> [a]
++ [         String
opt | String
opt <- InstalledPackageInfo -> [String]
Installed.ccOptions   InstalledPackageInfo
pkg ] ]
       forall a. [a] -> [a] -> [a]
++ [ String
"--lflag=" forall a. [a] -> [a] -> [a]
++ String
opt
          | InstalledPackageInfo
pkg <- [InstalledPackageInfo]
pkgs
          , String
opt <- [ String
"-L" forall a. [a] -> [a] -> [a]
++ String
opt | String
opt <- InstalledPackageInfo -> [String]
Installed.libraryDirs    InstalledPackageInfo
pkg ]
                forall a. [a] -> [a] -> [a]
++ [ String
"-Wl,-R," forall a. [a] -> [a] -> [a]
++ String
opt | Bool
isELF
                                 , String
opt <- InstalledPackageInfo -> [String]
Installed.libraryDirs    InstalledPackageInfo
pkg ]
                forall a. [a] -> [a] -> [a]
++ [ String
"-l" forall a. [a] -> [a] -> [a]
++ String
opt | String
opt <- InstalledPackageInfo -> [String]
Installed.extraLibraries InstalledPackageInfo
pkg ]
                forall a. [a] -> [a] -> [a]
++ [         String
opt | String
opt <- InstalledPackageInfo -> [String]
Installed.ldOptions      InstalledPackageInfo
pkg ] ]
       forall a. [a] -> [a] -> [a]
++ [String]
preccldFlags
       forall a. [a] -> [a] -> [a]
++ BuildInfo -> [String]
hsc2hsOptions BuildInfo
bi
       forall a. [a] -> [a] -> [a]
++ [String]
postccldFlags

       forall a. [a] -> [a] -> [a]
++ [String
"-o", String
outFile, String
inFile]
      where
        -- hsc2hs flag parsing was wrong
        -- (see -- https://github.com/haskell/hsc2hs/issues/35)
        -- so we need to put -- --cc/--ld *after* hsc2hsOptions,
        -- for older hsc2hs (pre 0.68.8) so that they can be overridden.
        ccldFlags :: [String]
ccldFlags =
          [ String
"--cc=" forall a. [a] -> [a] -> [a]
++ ConfiguredProgram -> String
programPath ConfiguredProgram
gccProg
          , String
"--ld=" forall a. [a] -> [a] -> [a]
++ ConfiguredProgram -> String
programPath ConfiguredProgram
gccProg
          ]

        ([String]
preccldFlags, [String]
postccldFlags)
          | Version
hsc2hsVersion forall a. Ord a => a -> a -> Bool
>= [Int] -> Version
mkVersion [Int
0,Int
68,Int
8] = ([String]
ccldFlags, [])
          | Bool
otherwise                           = ([], [String]
ccldFlags)

    hacked_index :: InstalledPackageIndex
hacked_index = InstalledPackageIndex -> InstalledPackageIndex
packageHacks (LocalBuildInfo -> InstalledPackageIndex
installedPkgs LocalBuildInfo
lbi)
    -- Look only at the dependencies of the current component
    -- being built!  This relies on 'installedPkgs' maintaining
    -- 'InstalledPackageInfo' for internal deps too; see #2971.
    pkgs :: [InstalledPackageInfo]
pkgs = forall a. PackageInstalled a => PackageIndex a -> [a]
PackageIndex.topologicalOrder forall a b. (a -> b) -> a -> b
$
           case InstalledPackageIndex
-> [UnitId]
-> Either InstalledPackageIndex [(InstalledPackageInfo, [UnitId])]
PackageIndex.dependencyClosure InstalledPackageIndex
hacked_index
                    (forall a b. (a -> b) -> [a] -> [b]
map forall a b. (a, b) -> a
fst (ComponentLocalBuildInfo -> [(UnitId, MungedPackageId)]
componentPackageDeps ComponentLocalBuildInfo
clbi)) of
            Left InstalledPackageIndex
index' -> InstalledPackageIndex
index'
            Right [(InstalledPackageInfo, [UnitId])]
inf ->
                forall a. HasCallStack => String -> a
error (String
"ppHsc2hs: broken closure: " forall a. [a] -> [a] -> [a]
++ forall a. Show a => a -> String
show [(InstalledPackageInfo, [UnitId])]
inf)
    isOSX :: Bool
isOSX = case OS
buildOS of OS
OSX -> Bool
True; OS
_ -> Bool
False
    isELF :: Bool
isELF = case OS
buildOS of OS
OSX -> Bool
False; OS
Windows -> Bool
False; OS
AIX -> Bool
False; OS
_ -> Bool
True;
    packageHacks :: InstalledPackageIndex -> InstalledPackageIndex
packageHacks = case Compiler -> CompilerFlavor
compilerFlavor (LocalBuildInfo -> Compiler
compiler LocalBuildInfo
lbi) of
      CompilerFlavor
GHC   -> InstalledPackageIndex -> InstalledPackageIndex
hackRtsPackage
      CompilerFlavor
GHCJS -> InstalledPackageIndex -> InstalledPackageIndex
hackRtsPackage
      CompilerFlavor
_     -> forall a. a -> a
id
    -- We don't link in the actual Haskell libraries of our dependencies, so
    -- the -u flags in the ldOptions of the rts package mean linking fails on
    -- OS X (its ld is a tad stricter than gnu ld). Thus we remove the
    -- ldOptions for GHC's rts package:
    hackRtsPackage :: InstalledPackageIndex -> InstalledPackageIndex
hackRtsPackage InstalledPackageIndex
index =
      case forall a. PackageIndex a -> PackageName -> [(Version, [a])]
PackageIndex.lookupPackageName InstalledPackageIndex
index (String -> PackageName
mkPackageName String
"rts") of
        [(Version
_, [InstalledPackageInfo
rts])]
           -> InstalledPackageInfo
-> InstalledPackageIndex -> InstalledPackageIndex
PackageIndex.insert InstalledPackageInfo
rts { ldOptions :: [String]
Installed.ldOptions = [] } InstalledPackageIndex
index
        [(Version, [InstalledPackageInfo])]
_  -> forall a. HasCallStack => String -> a
error String
"No (or multiple) ghc rts package is registered!!"

ppHsc2hsExtras :: PreProcessorExtras
ppHsc2hsExtras :: PreProcessorExtras
ppHsc2hsExtras String
buildBaseDir = forall a. (a -> Bool) -> [a] -> [a]
filter (String
"_hsc.c" forall a. Eq a => [a] -> [a] -> Bool
`isSuffixOf`) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
`fmap`
                              PreProcessorExtras
getDirectoryContentsRecursive String
buildBaseDir

ppC2hs :: BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppC2hs :: BuildInfo
-> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppC2hs BuildInfo
bi LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi =
  PreProcessor {
    platformIndependent :: Bool
platformIndependent = Bool
False,
    runPreProcessor :: (String, String) -> (String, String) -> Verbosity -> IO ()
runPreProcessor = \(String
inBaseDir, String
inRelativeFile)
                       (String
outBaseDir, String
outRelativeFile) Verbosity
verbosity -> do
      (ConfiguredProgram
c2hsProg, Version
_, ProgramDb
_) <- Verbosity
-> Program
-> VersionRange
-> ProgramDb
-> IO (ConfiguredProgram, Version, ProgramDb)
requireProgramVersion Verbosity
verbosity
                            Program
c2hsProgram (Version -> VersionRange
orLaterVersion ([Int] -> Version
mkVersion [Int
0,Int
15]))
                            (LocalBuildInfo -> ProgramDb
withPrograms LocalBuildInfo
lbi)
      (ConfiguredProgram
gccProg, ProgramDb
_) <- Verbosity
-> Program -> ProgramDb -> IO (ConfiguredProgram, ProgramDb)
requireProgram Verbosity
verbosity Program
gccProgram (LocalBuildInfo -> ProgramDb
withPrograms LocalBuildInfo
lbi)
      Verbosity -> ConfiguredProgram -> [String] -> IO ()
runProgram Verbosity
verbosity ConfiguredProgram
c2hsProg forall a b. (a -> b) -> a -> b
$

          -- Options from the current package:
           [ String
"--cpp=" forall a. [a] -> [a] -> [a]
++ ConfiguredProgram -> String
programPath ConfiguredProgram
gccProg, String
"--cppopts=-E" ]
        forall a. [a] -> [a] -> [a]
++ [ String
"--cppopts=" forall a. [a] -> [a] -> [a]
++ String
opt | String
opt <- BuildInfo -> LocalBuildInfo -> [String]
getCppOptions BuildInfo
bi LocalBuildInfo
lbi ]
        forall a. [a] -> [a] -> [a]
++ [ String
"--cppopts=-include" forall a. [a] -> [a] -> [a]
++ (LocalBuildInfo -> ComponentLocalBuildInfo -> String
autogenComponentModulesDir LocalBuildInfo
lbi ComponentLocalBuildInfo
clbi String -> String -> String
</> String
cppHeaderName) ]
        forall a. [a] -> [a] -> [a]
++ [ String
"--include=" forall a. [a] -> [a] -> [a]
++ String
outBaseDir ]

          -- Options from dependent packages
       forall a. [a] -> [a] -> [a]
++ [ String
"--cppopts=" forall a. [a] -> [a] -> [a]
++ String
opt
          | InstalledPackageInfo
pkg <- [InstalledPackageInfo]
pkgs
          , String
opt <- [ String
"-I" forall a. [a] -> [a] -> [a]
++ String
opt | String
opt <- InstalledPackageInfo -> [String]
Installed.includeDirs InstalledPackageInfo
pkg ]
                forall a. [a] -> [a] -> [a]
++ [         String
opt | opt :: String
opt@(Char
'-':Char
c:String
_) <- InstalledPackageInfo -> [String]
Installed.ccOptions InstalledPackageInfo
pkg
                                                 -- c2hs uses the C ABI
                                                 -- We assume that there are only C sources
                                                 -- and C++ functions are exported via a C
                                                 -- interface and wrapped in a C source file.
                                                 -- Therefore we do not supply C++ flags
                                                 -- because there will not be C++ sources.
                                                 --
                                                 --
                                                 -- DO NOT add Installed.cxxOptions unless this changes!
                                 , Char
c forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
`elem` String
"DIU" ] ]
          --TODO: install .chi files for packages, so we can --include
          -- those dirs here, for the dependencies

           -- input and output files
        forall a. [a] -> [a] -> [a]
++ [ String
"--output-dir=" forall a. [a] -> [a] -> [a]
++ String
outBaseDir
           , String
"--output=" forall a. [a] -> [a] -> [a]
++ String
outRelativeFile
           , String
inBaseDir String -> String -> String
</> String
inRelativeFile ]
  }
  where
    pkgs :: [InstalledPackageInfo]
pkgs = forall a. PackageInstalled a => PackageIndex a -> [a]
PackageIndex.topologicalOrder (LocalBuildInfo -> InstalledPackageIndex
installedPkgs LocalBuildInfo
lbi)

ppC2hsExtras :: PreProcessorExtras
ppC2hsExtras :: PreProcessorExtras
ppC2hsExtras String
d = forall a. (a -> Bool) -> [a] -> [a]
filter (\String
p -> String -> String
takeExtensions String
p forall a. Eq a => a -> a -> Bool
== String
".chs.c") forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
`fmap`
                 PreProcessorExtras
getDirectoryContentsRecursive String
d

--TODO: perhaps use this with hsc2hs too
--TODO: remove cc-options from cpphs for cabal-version: >= 1.10
--TODO: Refactor and add separate getCppOptionsForHs, getCppOptionsForCxx, & getCppOptionsForC
--      instead of combining all these cases in a single function. This blind combination can
--      potentially lead to compilation inconsistencies.
getCppOptions :: BuildInfo -> LocalBuildInfo -> [String]
getCppOptions :: BuildInfo -> LocalBuildInfo -> [String]
getCppOptions BuildInfo
bi LocalBuildInfo
lbi
    = LocalBuildInfo -> [String]
platformDefines LocalBuildInfo
lbi
   forall a. [a] -> [a] -> [a]
++ BuildInfo -> [String]
cppOptions BuildInfo
bi
   forall a. [a] -> [a] -> [a]
++ [String
"-I" forall a. [a] -> [a] -> [a]
++ String
dir | String
dir <- BuildInfo -> [String]
PD.includeDirs BuildInfo
bi]
   forall a. [a] -> [a] -> [a]
++ [String
opt | opt :: String
opt@(Char
'-':Char
c:String
_) <- BuildInfo -> [String]
PD.ccOptions BuildInfo
bi forall a. [a] -> [a] -> [a]
++ BuildInfo -> [String]
PD.cxxOptions BuildInfo
bi, Char
c forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
`elem` String
"DIU"]

platformDefines :: LocalBuildInfo -> [String]
platformDefines :: LocalBuildInfo -> [String]
platformDefines LocalBuildInfo
lbi =
  case Compiler -> CompilerFlavor
compilerFlavor Compiler
comp of
    CompilerFlavor
GHC  ->
      [String
"-D__GLASGOW_HASKELL__=" forall a. [a] -> [a] -> [a]
++ Version -> String
versionInt Version
version] forall a. [a] -> [a] -> [a]
++
      [String
"-D" forall a. [a] -> [a] -> [a]
++ String
os   forall a. [a] -> [a] -> [a]
++ String
"_BUILD_OS=1"] forall a. [a] -> [a] -> [a]
++
      [String
"-D" forall a. [a] -> [a] -> [a]
++ String
arch forall a. [a] -> [a] -> [a]
++ String
"_BUILD_ARCH=1"] forall a. [a] -> [a] -> [a]
++
      forall a b. (a -> b) -> [a] -> [b]
map (\String
os'   -> String
"-D" forall a. [a] -> [a] -> [a]
++ String
os'   forall a. [a] -> [a] -> [a]
++ String
"_HOST_OS=1")   [String]
osStr forall a. [a] -> [a] -> [a]
++
      forall a b. (a -> b) -> [a] -> [b]
map (\String
arch' -> String
"-D" forall a. [a] -> [a] -> [a]
++ String
arch' forall a. [a] -> [a] -> [a]
++ String
"_HOST_ARCH=1") [String]
archStr
    CompilerFlavor
GHCJS ->
      [String]
compatGlasgowHaskell forall a. [a] -> [a] -> [a]
++
      [String
"-D__GHCJS__=" forall a. [a] -> [a] -> [a]
++ Version -> String
versionInt Version
version] forall a. [a] -> [a] -> [a]
++
      [String
"-D" forall a. [a] -> [a] -> [a]
++ String
os   forall a. [a] -> [a] -> [a]
++ String
"_BUILD_OS=1"] forall a. [a] -> [a] -> [a]
++
      [String
"-D" forall a. [a] -> [a] -> [a]
++ String
arch forall a. [a] -> [a] -> [a]
++ String
"_BUILD_ARCH=1"] forall a. [a] -> [a] -> [a]
++
      forall a b. (a -> b) -> [a] -> [b]
map (\String
os'   -> String
"-D" forall a. [a] -> [a] -> [a]
++ String
os'   forall a. [a] -> [a] -> [a]
++ String
"_HOST_OS=1")   [String]
osStr forall a. [a] -> [a] -> [a]
++
      forall a b. (a -> b) -> [a] -> [b]
map (\String
arch' -> String
"-D" forall a. [a] -> [a] -> [a]
++ String
arch' forall a. [a] -> [a] -> [a]
++ String
"_HOST_ARCH=1") [String]
archStr
    HaskellSuite {} ->
      [String
"-D__HASKELL_SUITE__"] forall a. [a] -> [a] -> [a]
++
        forall a b. (a -> b) -> [a] -> [b]
map (\String
os'   -> String
"-D" forall a. [a] -> [a] -> [a]
++ String
os'   forall a. [a] -> [a] -> [a]
++ String
"_HOST_OS=1")   [String]
osStr forall a. [a] -> [a] -> [a]
++
        forall a b. (a -> b) -> [a] -> [b]
map (\String
arch' -> String
"-D" forall a. [a] -> [a] -> [a]
++ String
arch' forall a. [a] -> [a] -> [a]
++ String
"_HOST_ARCH=1") [String]
archStr
    CompilerFlavor
_    -> []
  where
    comp :: Compiler
comp = LocalBuildInfo -> Compiler
compiler LocalBuildInfo
lbi
    Platform Arch
hostArch OS
hostOS = LocalBuildInfo -> Platform
hostPlatform LocalBuildInfo
lbi
    version :: Version
version = Compiler -> Version
compilerVersion Compiler
comp
    compatGlasgowHaskell :: [String]
compatGlasgowHaskell =
      forall b a. b -> (a -> b) -> Maybe a -> b
maybe [] (\Version
v -> [String
"-D__GLASGOW_HASKELL__=" forall a. [a] -> [a] -> [a]
++ Version -> String
versionInt Version
v])
               (CompilerFlavor -> Compiler -> Maybe Version
compilerCompatVersion CompilerFlavor
GHC Compiler
comp)
    -- TODO: move this into the compiler abstraction
    -- FIXME: this forces GHC's crazy 4.8.2 -> 408 convention on all
    -- the other compilers. Check if that's really what they want.
    versionInt :: Version -> String
    versionInt :: Version -> String
versionInt Version
v = case Version -> [Int]
versionNumbers Version
v of
      [] -> String
"1"
      [Int
n] -> forall a. Show a => a -> String
show Int
n
      Int
n1:Int
n2:[Int]
_ ->
        -- 6.8.x -> 608
        -- 6.10.x -> 610
        let s1 :: String
s1 = forall a. Show a => a -> String
show Int
n1
            s2 :: String
s2 = forall a. Show a => a -> String
show Int
n2
            middle :: String
middle = case String
s2 of
                     Char
_ : Char
_ : String
_ -> String
""
                     String
_         -> String
"0"
        in String
s1 forall a. [a] -> [a] -> [a]
++ String
middle forall a. [a] -> [a] -> [a]
++ String
s2

    osStr :: [String]
osStr = case OS
hostOS of
      OS
Linux     -> [String
"linux"]
      OS
Windows   -> [String
"mingw32"]
      OS
OSX       -> [String
"darwin"]
      OS
FreeBSD   -> [String
"freebsd"]
      OS
OpenBSD   -> [String
"openbsd"]
      OS
NetBSD    -> [String
"netbsd"]
      OS
DragonFly -> [String
"dragonfly"]
      OS
Solaris   -> [String
"solaris2"]
      OS
AIX       -> [String
"aix"]
      OS
HPUX      -> [String
"hpux"]
      OS
IRIX      -> [String
"irix"]
      OS
HaLVM     -> []
      OS
IOS       -> [String
"ios"]
      OS
Android   -> [String
"android"]
      OS
Ghcjs     -> [String
"ghcjs"]
      OS
Hurd      -> [String
"hurd"]
      OtherOS String
_ -> []
    archStr :: [String]
archStr = case Arch
hostArch of
      Arch
I386        -> [String
"i386"]
      Arch
X86_64      -> [String
"x86_64"]
      Arch
PPC         -> [String
"powerpc"]
      Arch
PPC64       -> [String
"powerpc64"]
      Arch
Sparc       -> [String
"sparc"]
      Arch
Arm         -> [String
"arm"]
      Arch
AArch64     -> [String
"aarch64"]
      Arch
Mips        -> [String
"mips"]
      Arch
SH          -> []
      Arch
IA64        -> [String
"ia64"]
      Arch
S390        -> [String
"s390"]
      Arch
Alpha       -> [String
"alpha"]
      Arch
Hppa        -> [String
"hppa"]
      Arch
Rs6000      -> [String
"rs6000"]
      Arch
M68k        -> [String
"m68k"]
      Arch
Vax         -> [String
"vax"]
      Arch
JavaScript  -> [String
"javascript"]
      OtherArch String
_ -> []

ppHappy :: BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppHappy :: BuildInfo
-> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppHappy BuildInfo
_ LocalBuildInfo
lbi ComponentLocalBuildInfo
_ = PreProcessor
pp { platformIndependent :: Bool
platformIndependent = Bool
True }
  where pp :: PreProcessor
pp = LocalBuildInfo -> Program -> [String] -> PreProcessor
standardPP LocalBuildInfo
lbi Program
happyProgram (CompilerFlavor -> [String]
hcFlags CompilerFlavor
hc)
        hc :: CompilerFlavor
hc = Compiler -> CompilerFlavor
compilerFlavor (LocalBuildInfo -> Compiler
compiler LocalBuildInfo
lbi)
        hcFlags :: CompilerFlavor -> [String]
hcFlags CompilerFlavor
GHC = [String
"-agc"]
        hcFlags CompilerFlavor
GHCJS = [String
"-agc"]
        hcFlags CompilerFlavor
_ = []

ppAlex :: BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppAlex :: BuildInfo
-> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppAlex BuildInfo
_ LocalBuildInfo
lbi ComponentLocalBuildInfo
_ = PreProcessor
pp { platformIndependent :: Bool
platformIndependent = Bool
True }
  where pp :: PreProcessor
pp = LocalBuildInfo -> Program -> [String] -> PreProcessor
standardPP LocalBuildInfo
lbi Program
alexProgram (CompilerFlavor -> [String]
hcFlags CompilerFlavor
hc)
        hc :: CompilerFlavor
hc = Compiler -> CompilerFlavor
compilerFlavor (LocalBuildInfo -> Compiler
compiler LocalBuildInfo
lbi)
        hcFlags :: CompilerFlavor -> [String]
hcFlags CompilerFlavor
GHC = [String
"-g"]
        hcFlags CompilerFlavor
GHCJS = [String
"-g"]
        hcFlags CompilerFlavor
_ = []

standardPP :: LocalBuildInfo -> Program -> [String] -> PreProcessor
standardPP :: LocalBuildInfo -> Program -> [String] -> PreProcessor
standardPP LocalBuildInfo
lbi Program
prog [String]
args =
  PreProcessor {
    platformIndependent :: Bool
platformIndependent = Bool
False,
    runPreProcessor :: (String, String) -> (String, String) -> Verbosity -> IO ()
runPreProcessor = (String -> String -> Verbosity -> IO ())
-> (String, String) -> (String, String) -> Verbosity -> IO ()
mkSimplePreProcessor forall a b. (a -> b) -> a -> b
$ \String
inFile String
outFile Verbosity
verbosity ->
      Verbosity -> Program -> ProgramDb -> [String] -> IO ()
runDbProgram Verbosity
verbosity Program
prog (LocalBuildInfo -> ProgramDb
withPrograms LocalBuildInfo
lbi)
                           ([String]
args forall a. [a] -> [a] -> [a]
++ [String
"-o", String
outFile, String
inFile])
  }

-- |Convenience function; get the suffixes of these preprocessors.
ppSuffixes :: [ PPSuffixHandler ] -> [String]
ppSuffixes :: [PPSuffixHandler] -> [String]
ppSuffixes = forall a b. (a -> b) -> [a] -> [b]
map forall a b. (a, b) -> a
fst

-- |Standard preprocessors: GreenCard, c2hs, hsc2hs, happy, alex and cpphs.
knownSuffixHandlers :: [ PPSuffixHandler ]
knownSuffixHandlers :: [PPSuffixHandler]
knownSuffixHandlers =
  [ (String
"gc",     BuildInfo
-> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppGreenCard)
  , (String
"chs",    BuildInfo
-> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppC2hs)
  , (String
"hsc",    BuildInfo
-> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppHsc2hs)
  , (String
"x",      BuildInfo
-> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppAlex)
  , (String
"y",      BuildInfo
-> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppHappy)
  , (String
"ly",     BuildInfo
-> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppHappy)
  , (String
"cpphs",  BuildInfo
-> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor
ppCpp)
  ]

-- |Standard preprocessors with possible extra C sources: c2hs, hsc2hs.
knownExtrasHandlers :: [ PreProcessorExtras ]
knownExtrasHandlers :: [PreProcessorExtras]
knownExtrasHandlers = [ PreProcessorExtras
ppC2hsExtras, PreProcessorExtras
ppHsc2hsExtras ]

-- | Find any extra C sources generated by preprocessing that need to
-- be added to the component (addresses issue #238).
preprocessExtras :: Verbosity
                 -> Component
                 -> LocalBuildInfo
                 -> IO [FilePath]
preprocessExtras :: Verbosity -> Component -> LocalBuildInfo -> IO [String]
preprocessExtras Verbosity
verbosity Component
comp LocalBuildInfo
lbi = case Component
comp of
  CLib Library
_ -> PreProcessorExtras
pp forall a b. (a -> b) -> a -> b
$ LocalBuildInfo -> String
buildDir LocalBuildInfo
lbi
  (CExe Executable { exeName :: Executable -> UnqualComponentName
exeName = UnqualComponentName
nm }) -> do
    let nm' :: String
nm' = UnqualComponentName -> String
unUnqualComponentName UnqualComponentName
nm
    PreProcessorExtras
pp forall a b. (a -> b) -> a -> b
$ LocalBuildInfo -> String
buildDir LocalBuildInfo
lbi String -> String -> String
</> String
nm' String -> String -> String
</> String
nm' forall a. [a] -> [a] -> [a]
++ String
"-tmp"
  (CFLib ForeignLib { foreignLibName :: ForeignLib -> UnqualComponentName
foreignLibName = UnqualComponentName
nm }) -> do
    let nm' :: String
nm' = UnqualComponentName -> String
unUnqualComponentName UnqualComponentName
nm
    PreProcessorExtras
pp forall a b. (a -> b) -> a -> b
$ LocalBuildInfo -> String
buildDir LocalBuildInfo
lbi String -> String -> String
</> String
nm' String -> String -> String
</> String
nm' forall a. [a] -> [a] -> [a]
++ String
"-tmp"
  CTest TestSuite
test -> do
    let nm' :: String
nm' = UnqualComponentName -> String
unUnqualComponentName forall a b. (a -> b) -> a -> b
$ TestSuite -> UnqualComponentName
testName TestSuite
test
    case TestSuite -> TestSuiteInterface
testInterface TestSuite
test of
      TestSuiteExeV10 Version
_ String
_ ->
          PreProcessorExtras
pp forall a b. (a -> b) -> a -> b
$ LocalBuildInfo -> String
buildDir LocalBuildInfo
lbi String -> String -> String
</> String
nm' String -> String -> String
</> String
nm' forall a. [a] -> [a] -> [a]
++ String
"-tmp"
      TestSuiteLibV09 Version
_ ModuleName
_ ->
          PreProcessorExtras
pp forall a b. (a -> b) -> a -> b
$ LocalBuildInfo -> String
buildDir LocalBuildInfo
lbi String -> String -> String
</> TestSuite -> String
stubName TestSuite
test String -> String -> String
</> TestSuite -> String
stubName TestSuite
test forall a. [a] -> [a] -> [a]
++ String
"-tmp"
      TestSuiteUnsupported TestType
tt ->
        forall a. Verbosity -> String -> IO a
die' Verbosity
verbosity forall a b. (a -> b) -> a -> b
$ String
"No support for preprocessing test suite type " forall a. [a] -> [a] -> [a]
++
                         forall a. Pretty a => a -> String
prettyShow TestType
tt
  CBench Benchmark
bm -> do
    let nm' :: String
nm' = UnqualComponentName -> String
unUnqualComponentName forall a b. (a -> b) -> a -> b
$ Benchmark -> UnqualComponentName
benchmarkName Benchmark
bm
    case Benchmark -> BenchmarkInterface
benchmarkInterface Benchmark
bm of
      BenchmarkExeV10 Version
_ String
_ ->
          PreProcessorExtras
pp forall a b. (a -> b) -> a -> b
$ LocalBuildInfo -> String
buildDir LocalBuildInfo
lbi String -> String -> String
</> String
nm' String -> String -> String
</> String
nm' forall a. [a] -> [a] -> [a]
++ String
"-tmp"
      BenchmarkUnsupported BenchmarkType
tt ->
          forall a. Verbosity -> String -> IO a
die' Verbosity
verbosity forall a b. (a -> b) -> a -> b
$ String
"No support for preprocessing benchmark "
                        forall a. [a] -> [a] -> [a]
++ String
"type " forall a. [a] -> [a] -> [a]
++ forall a. Pretty a => a -> String
prettyShow BenchmarkType
tt
  where
    pp :: FilePath -> IO [FilePath]
    pp :: PreProcessorExtras
pp String
dir = (forall a b. (a -> b) -> [a] -> [b]
map (String
dir String -> String -> String
</>) forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a. (a -> Bool) -> [a] -> [a]
filter String -> Bool
not_sub forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall (t :: * -> *) a. Foldable t => t [a] -> [a]
concat)
          forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall (t :: * -> *) (f :: * -> *) a b.
(Traversable t, Applicative f) =>
t a -> (a -> f b) -> f (t b)
for [PreProcessorExtras]
knownExtrasHandlers
                (forall a b.
(a -> WithCallStack (IO b)) -> WithCallStack (a -> IO b)
withLexicalCallStack (\PreProcessorExtras
f -> PreProcessorExtras
f String
dir))
    -- TODO: This is a terrible hack to work around #3545 while we don't
    -- reorganize the directory layout.  Basically, for the main
    -- library, we might accidentally pick up autogenerated sources for
    -- our subcomponents, because they are all stored as subdirectories
    -- in dist/build.  This is a cheap and cheerful check to prevent
    -- this from happening.  It is not particularly correct; for example
    -- if a user has a test suite named foobar and puts their C file in
    -- foobar/foo.c, this test will incorrectly exclude it.  But I
    -- didn't want to break BC...
    not_sub :: String -> Bool
not_sub String
p = forall (t :: * -> *). Foldable t => t Bool -> Bool
and [ Bool -> Bool
not (String
pre forall a. Eq a => [a] -> [a] -> Bool
`isPrefixOf` String
p) | String
pre <- [String]
component_dirs ]
    component_dirs :: [String]
component_dirs = PackageDescription -> [String]
component_names (LocalBuildInfo -> PackageDescription
localPkgDescr LocalBuildInfo
lbi)
    -- TODO: libify me
    component_names :: PackageDescription -> [String]
component_names PackageDescription
pkg_descr = forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap UnqualComponentName -> String
unUnqualComponentName forall a b. (a -> b) -> a -> b
$
        forall a b. (a -> Maybe b) -> [a] -> [b]
mapMaybe (LibraryName -> Maybe UnqualComponentName
libraryNameString forall b c a. (b -> c) -> (a -> b) -> a -> c
. Library -> LibraryName
libName) (PackageDescription -> [Library]
subLibraries PackageDescription
pkg_descr) forall a. [a] -> [a] -> [a]
++
        forall a b. (a -> b) -> [a] -> [b]
map Executable -> UnqualComponentName
exeName (PackageDescription -> [Executable]
executables PackageDescription
pkg_descr) forall a. [a] -> [a] -> [a]
++
        forall a b. (a -> b) -> [a] -> [b]
map TestSuite -> UnqualComponentName
testName (PackageDescription -> [TestSuite]
testSuites PackageDescription
pkg_descr) forall a. [a] -> [a] -> [a]
++
        forall a b. (a -> b) -> [a] -> [b]
map Benchmark -> UnqualComponentName
benchmarkName (PackageDescription -> [Benchmark]
benchmarks PackageDescription
pkg_descr)