src/main/wacc/Main.scala

@@ -69,7 +69,8 @@ val outputOpt: Opts[Option[Path]] =
     .orNone
 
 def frontend(
-    contents: String, file: File
+    contents: String,
+    file: File
 ): Either[NonEmptyList[Error], microWacc.Program] =
   parser.parse(contents) match {
     case Failure(msg) => Left(NonEmptyList.one(Error.SyntaxError(msg)))

src/main/wacc/frontend/ast.scala

@@ -134,7 +134,8 @@ object ast {
       extends Type
       with PairElemType
   object ArrayType extends ParserBridgePos2Chain[Int, Type, ArrayType] {
-    def apply(dimensions: Int, elemType: Type)(pos: Position): ArrayType = ArrayType(elemType, dimensions)(pos)
+    def apply(dimensions: Int, elemType: Type)(pos: Position): ArrayType =
+      ArrayType(elemType, dimensions)(pos)
   }
   case class PairType(fst: PairElemType, snd: PairElemType)(val pos: Position) extends Type
   object PairType extends ParserBridgePos2[PairElemType, PairElemType, PairType]
@@ -171,9 +172,12 @@ object ast {
   object FuncDecl
       extends ParserBridgePos2Chain[
         (List[Param], NonEmptyList[Stmt]),
-        ((Type, Ident)), FuncDecl
+        ((Type, Ident)),
+        FuncDecl
       ] {
-    def apply(paramsBody: (List[Param], NonEmptyList[Stmt]), retTyName: (Type, Ident))(pos: Position): FuncDecl =
+    def apply(paramsBody: (List[Param], NonEmptyList[Stmt]), retTyName: (Type, Ident))(
+        pos: Position
+    ): FuncDecl =
       new FuncDecl(retTyName._1, retTyName._2, paramsBody._1, paramsBody._2)(pos)
   }
 
@@ -261,15 +265,19 @@ object ast {
       a => file => this.apply(a(file))(Position(pos._1, pos._2, file))
   }
 
-  trait ParserBridgePos2Chain[-A, -B, +C] extends ParserSingletonBridgePos[(File => A) => (File => B) => File => C] {
+  trait ParserBridgePos2Chain[-A, -B, +C]
+      extends ParserSingletonBridgePos[(File => A) => (File => B) => File => C] {
     def apply(a: A, b: B)(pos: Position): C
-    def apply(a: Parsley[File =>A]): Parsley[(File => B) => File => C] = error(ap1(pos.map(con), a))
+    def apply(a: Parsley[File => A]): Parsley[(File => B) => File => C] = error(
+      ap1(pos.map(con), a)
+    )
 
     override final def con(pos: (Int, Int)): (File => A) => (File => B) => File => C =
       a => b => file => this.apply(a(file), b(file))(Position(pos._1, pos._2, file))
   }
 
-  trait ParserBridgePos2[-A, -B, +C] extends ParserSingletonBridgePos[(File => A, File => B) => File => C] {
+  trait ParserBridgePos2[-A, -B, +C]
+      extends ParserSingletonBridgePos[(File => A, File => B) => File => C] {
     def apply(a: A, b: B)(pos: Position): C
     def apply(a: Parsley[File => A], b: => Parsley[File => B]): Parsley[File => C] = error(
       ap2(pos.map(con), a, b)
@@ -279,9 +287,14 @@ object ast {
       (a, b) => file => this.apply(a(file), b(file))(Position(pos._1, pos._2, file))
   }
 
-  trait ParserBridgePos3[-A, -B, -C, +D] extends ParserSingletonBridgePos[(File => A, File => B, File => C) => File => D] {
+  trait ParserBridgePos3[-A, -B, -C, +D]
+      extends ParserSingletonBridgePos[(File => A, File => B, File => C) => File => D] {
     def apply(a: A, b: B, c: C)(pos: Position): D
-    def apply(a: Parsley[File => A], b: => Parsley[File => B], c: => Parsley[File => C]): Parsley[File => D] = error(
+    def apply(
+        a: Parsley[File => A],
+        b: => Parsley[File => B],
+        c: => Parsley[File => C]
+    ): Parsley[File => D] = error(
       ap3(pos.map(con), a, b, c)
     )
 

src/main/wacc/frontend/parser.scala

@@ -161,11 +161,15 @@ object parser {
   )
   private lazy val `<program>` = Program(
     "begin" ~> (
-      fList(many(
+      fList(
-        fPair(atomic(
+        many(
+          fPair(
+            atomic(
               `<type>`.label("function declaration") <~> `<ident>` <~ "("
-        )) <**> `<partial-func-decl>`
+            )
-      ).label("function declaration")) |
+          ) <**> `<partial-func-decl>`
+        ).label("function declaration")
+      ) |
         atomic(`<ident>` <~ "(").verifiedExplain("function declaration is missing return type")
     ),
     `<stmt>`.label(
@@ -174,18 +178,23 @@ object parser {
   )
   private lazy val `<partial-func-decl>` =
     FuncDecl(
-      fPair((fList(sepBy(`<param>`, ",")) <~ ")" <~ "is") <~>
+      fPair(
+        (fList(sepBy(`<param>`, ",")) <~ ")" <~ "is") <~>
           (`<stmt>`.guardAgainst {
             // TODO: passing in an arbitrary file works but is ugly
-        case stmts if !(stmts(File("."))).isReturning => Seq("all functions must end in a returning statement")
+            case stmts if !(stmts(File("."))).isReturning =>
-      } <~ "end"))
+              Seq("all functions must end in a returning statement")
+          } <~ "end")
+      )
     )
   private lazy val `<param>` = Param(`<type>`, `<ident>`)
   private lazy val `<stmt>`: FParsley[NonEmptyList[Stmt]] =
-    fNonEmptyList((
+    fNonEmptyList(
+      (
         `<basic-stmt>`.label("main program body"),
         (many(";" ~> `<basic-stmt>`.label("statement after ';'"))) </> Nil
-    ).zipped(NonEmptyList.apply))
+      ).zipped(NonEmptyList.apply)
+    )
 
   private lazy val `<basic-stmt>` =
     (Skip from "skip")