Find old Haskell implementation on backup diskHEADmaster

GHC 8.0.2 vintage, doesn't compile

1 files changed, 26 insertions, 0 deletions

diff --git a/hs/Main.hs b/hs/Main.hs
new file mode 100644
index 0000000..5db97ec
--- /dev/null
+++ b/hs/Main.hs
@@ -0,0 +1,26 @@
+module Main where
+
+import Control.Monad
+import System.Environment
+import System.Exit
+
+-- import AST
+import Interpreter
+import Parser
+
+
+main :: IO ()
+main = do
+    args <- getArgs
+    when (length args == 0) $ die "Pass source file as parameter"
+    let fname = head args
+    src <- readFile fname
+    let eprog = parseProgram (Just fname) src
+    prog <- either (die . show) return eprog
+    -- print prog
+    -- putStrLn $ astPretty prog
+    let (merr, output, _) = interpret prog
+
+    maybe (putStrLn "[No errors]") (putStrLn . ("ERROR: " ++)) merr
+    putStrLn "OUTPUT:"
+    putStrLn output