feat: pass stmt position information to microwacc

src/main/wacc/frontend/microWacc.scala

@@ -3,6 +3,7 @@ package wacc
 import cats.data.Chain
 
 object microWacc {
+  import wacc.ast.Position
   import wacc.types._
 
   sealed trait CallTarget(val retTy: SemType)
@@ -13,7 +14,7 @@ object microWacc {
   case class IntLiter(v: Int) extends Expr(KnownType.Int)
   case class BoolLiter(v: Boolean) extends Expr(KnownType.Bool)
   case class CharLiter(v: Char) extends Expr(KnownType.Char)
-  case class ArrayLiter(elems: List[Expr])(ty: SemType) extends Expr(ty)
+  case class ArrayLiter(elems: List[Expr])(ty: SemType, val pos: Position) extends Expr(ty)
   case class NullLiter()(ty: SemType) extends Expr(ty)
   case class Ident(name: String, uid: Int)(identTy: SemType)
       extends Expr(identTy)
@@ -65,7 +66,9 @@ object microWacc {
   }
 
   // Statements
-  sealed trait Stmt
+  sealed trait Stmt {
+    val pos: Position
+  }
 
   case class Builtin(val name: String)(retTy: SemType) extends CallTarget(retTy) {
     override def toString(): String = name
@@ -79,11 +82,14 @@ object microWacc {
     object PrintCharArray extends Builtin("printCharArray")(?)
   }
 
-  case class Assign(lhs: LValue, rhs: Expr) extends Stmt
-  case class If(cond: Expr, thenBranch: Chain[Stmt], elseBranch: Chain[Stmt]) extends Stmt
-  case class While(cond: Expr, body: Chain[Stmt]) extends Stmt
-  case class Call(target: CallTarget, args: List[Expr]) extends Stmt with Expr(target.retTy)
-  case class Return(expr: Expr) extends Stmt
+  case class Assign(lhs: LValue, rhs: Expr)(val pos: Position) extends Stmt
+  case class If(cond: Expr, thenBranch: Chain[Stmt], elseBranch: Chain[Stmt])(val pos: Position)
+      extends Stmt
+  case class While(cond: Expr, body: Chain[Stmt])(val pos: Position) extends Stmt
+  case class Call(target: CallTarget, args: List[Expr])(val pos: Position)
+      extends Stmt
+      with Expr(target.retTy)
+  case class Return(expr: Expr)(val pos: Position) extends Stmt
 
   // Program
   case class FuncDecl(name: Ident, params: List[Ident], body: Chain[Stmt])