连接器客户端

connector/native/json.hpp

@@ -0,0 +1,51 @@
+#pragma once
+
+#include <map>
+#include <string>
+#include <variant>
+#include <vector>
+
+namespace connector {
+
+class Json {
+ public:
+  using Array = std::vector<Json>;
+  using Object = std::map<std::string, Json>;
+
+  Json();
+  Json(std::nullptr_t);
+  Json(bool value);
+  Json(double value);
+  Json(const char* value);
+  Json(std::string value);
+  Json(Array value);
+  Json(Object value);
+
+  static Json parse(const std::string& text);
+  std::string dump(int indent = -1) const;
+
+  bool is_null() const;
+  bool is_bool() const;
+  bool is_number() const;
+  bool is_string() const;
+  bool is_array() const;
+  bool is_object() const;
+
+  bool boolean(bool fallback = false) const;
+  double number(double fallback = 0) const;
+  const std::string& string() const;
+  const Array& array() const;
+  Array& array();
+  const Object& object() const;
+  Object& object();
+
+  const Json* find(const std::string& key) const;
+  Json* find(const std::string& key);
+  Json& operator[](const std::string& key);
+
+ private:
+  using Value = std::variant<std::nullptr_t, bool, double, std::string, Array, Object>;
+  Value value_;
+};
+
+}  // namespace connector