Enable some defaults (Safe, NoImplicitPrelude)

app/Main.hs

@@ -1,6 +1,7 @@
 module Main (main) where
 
-import Lib
+import Control.Applicative (pure)
+import System.IO (IO)
 
 main :: IO ()
-main = someFunc
+main = pure ()

package.yaml

@@ -18,6 +18,10 @@ extra-source-files:
 # common to point users to the README.md file.
 description:         Please see the README on GitHub at <https://github.com/githubuser/scalie#readme>
 
+default-extensions:
+  - Safe
+  - NoImplicitPrelude
+
 dependencies:
 - base >= 4.7 && < 5
 

scalie.cabal

@@ -19,11 +19,14 @@ extra-source-files:
 
 library
   exposed-modules:
-      Lib
+      Language.Scalie.Ast
   other-modules:
       Paths_scalie
   hs-source-dirs:
       src
+  default-extensions:
+      Safe
+      NoImplicitPrelude
   ghc-options: -Weverything
   build-depends:
       base >=4.7 && <5
@@ -35,6 +38,9 @@ executable scalie-exe
       Paths_scalie
   hs-source-dirs:
       app
+  default-extensions:
+      Safe
+      NoImplicitPrelude
   ghc-options: -Weverything -threaded -rtsopts -with-rtsopts=-N
   build-depends:
       base >=4.7 && <5
@@ -48,6 +54,9 @@ test-suite scalie-test
       Paths_scalie
   hs-source-dirs:
       test
+  default-extensions:
+      Safe
+      NoImplicitPrelude
   ghc-options: -Weverything -threaded -rtsopts -with-rtsopts=-N
   build-depends:
       base >=4.7 && <5

src/Language/Scalie/Ast.hs

@@ -0,0 +1 @@
+module Language.Scalie.Ast () where

src/Lib.hs

@@ -1,6 +0,0 @@
-module Lib
-    ( someFunc
-    ) where
-
-someFunc :: IO ()
-someFunc = putStrLn "someFunc"