added index attribute to field class

2024-03-10 17:22:38 +01:00
parent 6bbc870362
commit 9a02abacea
3 changed files with 22 additions and 4 deletions
@@ -64,8 +64,9 @@ class field
 public:
  explicit field(std::string name);
  template<typename Type>
-  field(std::string name, Type value)
+  field(std::string name, Type value, int index = -1)
  : name_(std::move(name))
+  , index_(index)
  , value_(value)
  , type_(field_traits<Type>::type()) {}
  field(const field &x) = default;
@@ -81,6 +82,7 @@ public:
  }

  [[nodiscard]] const std::string& name() const;
+  [[nodiscard]] int index() const;

  template<class Type>
  std::optional<Type> as() const
@@ -103,6 +105,7 @@ public:

 private:
  std::string name_;
+  int index_{-1};
  any_type value_;
  field_type type_;
 };