Finish parsing expressions

cclox_src/scanner/object.cc

@@ -6,6 +6,8 @@ std::ostream &operator<<(std::ostream &os, const ObjectType &type) {
     case ObjectType::NIL:
       os << "ObjectType::NIL";
       break;
+    case ObjectType::BOOL:
+      os << "ObjectType::BOOL";
     case ObjectType::IDENTIFIER:
       os << "ObjectType::IDENTIFIER";
       break;
@@ -26,6 +28,9 @@ std::ostream &operator<<(std::ostream &os, const Object &obj) {
   switch (obj.type) {
     case ObjectType::NIL:
       break;
+    case ObjectType::BOOL:
+      os << ", " << std::to_string(std::get<bool>(obj.value));
+      break;
     case ObjectType::IDENTIFIER:
     case ObjectType::STRING_LIT:
       os << ", " << std::get<std::string>(obj.value);