feat: renamer maybe maybe maybe maybe

src/main/wacc/Main.scala

@@ -1,5 +1,6 @@
 package wacc
 
+import scala.collection.mutable
 import parsley.{Failure, Success}
 import scopt.OParser
 import java.io.File
@@ -32,8 +33,15 @@ val cliParser = {
 def compile(contents: String): Int = {
   parser.parse(contents) match {
     case Success(ast) =>
-      // TODO: Do semantics things
-      0
+      given errors: mutable.Builder[Error, List[Error]] = List.newBuilder
+      val names = renamer.rename(ast)
+      // given ctx: types.TypeCheckerCtx[List[Error]] =
+      //   types.TypeCheckerCtx(names, errors)
+      // types.check(ast)
+      if (errors.result.nonEmpty) {
+        errors.result.foreach(println)
+        200
+      } else 0
     case Failure(msg) =>
       println(msg)
       100