blob: 7828034dbc463c5304ceaf2ecdcfe7b59f9820c9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
module Main where
import Control.Monad
import Data.Either
import System.Environment
import System.Exit
import Check
import Codegen
import Parser
import PShow
fromLeft :: Either a b -> a
fromLeft (Left a) = a
fromLeft (Right _) = error "Either is not a Left"
fromRight :: Either a b -> b
fromRight (Right b) = b
fromRight (Left _) = error "Either is not a Right"
dieShow :: (Show a) => a -> IO ()
dieShow = die . show
main :: IO ()
main = do
args <- getArgs
when (length args /= 1) $ die "Pass NL file name as a command-line parameter"
let fname = args !! 0
parseResult <- (\file -> parseProgram file fname) <$> readFile fname
when (isLeft parseResult) $ dieShow $ fromLeft parseResult
let ast = fromRight parseResult
putStrLn $ pshow ast
checked <- either die return $ checkProgram ast
putStrLn "After checking:"
putStrLn $ pshow checked
llvmMod <- either die return $ codegen checked "Module" fname
putStrLn "Module:"
print llvmMod
|