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module sil
import StdBool
import StdChar
import StdFile
from StdFunc import o, seq
import StdList
import StdOverloaded
import StdString
import Control.Applicative
import Control.Monad
import Data.Error
from Data.Func import $
import Data.Functor
import System.CommandLine
import System.File
import ABC.Assembler
import qualified Sil.Compile as SC
from Sil.Compile import :: CompileError, instance toString CompileError
import Sil.Parse
import Sil.Parse.Parser
from Sil.Syntax import :: Program
from Sil.Util import :: PrintState, instance zero PrintState,
class PrettyPrinter(..), instance PrettyPrinter Program
:: CLI =
{ prettyprint :: Bool
, compile :: Bool
, inputfile :: String
}
instance zero CLI
where
zero =
{ prettyprint = False
, compile = False
, inputfile = ""
}
Start w
# (io,w) = stdio w
# (cmd,w) = getCommandLine w
# (args,_) = runParser (arg until eof) $ tl cmd
| isError args
# io = io <<< toString (fromError args) <<< "\r\n"
# (_,w) = fclose io w
= w
# args = seq (fromOk args) zero
# (file,w) = readFile args.inputfile w
| isError file
# io = io <<< "Could not open '" <<< args.inputfile <<< "'.\r\n"
# (_,w) = fclose io w
= w
# prog = tokenise (fromString $ fromOk file) >>= parse
| isError prog
# io = io <<< toString (fromError prog) <<< "\r\n"
# (_,w) = fclose io w
= w
# io = if args.prettyprint
(io <<< print zero (fromOk prog) <<< "\r\n")
io
# io = if args.compile
(io <<< ('SC'.compile (fromOk prog)) <<< "\r\n")
io
# (_,w) = fclose io w
= w
where
arg :: Parser String (CLI -> CLI)
arg = peek >>= \opt ->
( item "--pretty-print" *> pure (\cli -> {cli & prettyprint=True})
<|> item "--compile" *> pure (\cli -> {cli & compile=True})
<|> (satisfy isFilename >>= \name -> pure (\cli -> {cli & inputfile=name}))
<?> Invalid "command line argument" opt
)
isFilename :: (String -> Bool)
isFilename = all (\c -> isAlphanum c || isMember c ['.']) o fromString
instance <<< (MaybeError e a) | <<< e & <<< a
where
<<< f (Ok a) = f <<< a
<<< f (Error e) = f <<< e
instance <<< CompileError where <<< f e = f <<< toString e
|
