ghc-exactprint-0.5.0.0: tests/examples/ghc8/ado002.hs
{-# LANGUAGE ApplicativeDo,ScopedTypeVariables #-}
module Test where
-- Test that type errors aren't affected by ApplicativeDo
f :: IO Int
f = do
x <- getChar
y <- getChar 'a' -- type error
print (x,y)
g :: IO (Int,Int)
g = do
x <- getChar
y <- getChar
return (y,x)
h :: IO (Int,Int)
h = do
x1 <- getChar
x2 <- getChar
x3 <- const (return ()) x1
x4 <- getChar
x5 <- getChar x4
return (x2,x4)