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|
{-# OPTIONS_GHC -Wall -Wno-missing-fields #-}
import GHC hiding (parseModule)
import GHC.Data.StringBuffer
import GHC.Driver.Config.Parser
import GHC.Parser
import GHC.Parser.Lexer
import GHC.Platform
import GHC.Plugins
import GHC.Settings
import GHC.Settings.Config
import System.Mem.Weak
fakeSettings :: Settings
fakeSettings =
Settings
{ sGhcNameVersion =
GhcNameVersion
{ ghcNameVersion_programName =
"ghc",
ghcNameVersion_projectVersion =
cProjectVersion
},
sFileSettings =
FileSettings {},
sToolSettings = ToolSettings {},
sTargetPlatform =
genericPlatform,
sPlatformMisc = PlatformMisc {}
}
fakeDynFlags :: DynFlags
fakeDynFlags = defaultDynFlags fakeSettings
parse :: DynFlags -> String -> IO (Located (HsModule GhcPs))
parse dflags src = do
let buf = stringToStringBuffer src
let loc = mkRealSrcLoc (mkFastString "Main.hs") 1 1
case unP parseModule (initParserState (initParserOpts dflags) buf loc) of
PFailed _ -> fail "parseModule failed"
POk _ rdr_module -> pure rdr_module
main :: IO ()
main = do
_ <- mkWeak runGhc runGhc Nothing
m <- parse fakeDynFlags "main = putStrLn \"hello world\""
putStrLn $ showSDoc fakeDynFlags $ ppr m
|
