Util: Add more ways of accessing and creating Json::Value objects

src/util/json/value.h

@@ -7,7 +7,9 @@
 #ifndef JSON_VALUE_H
 #define JSON_VALUE_H
 
+#include <cstddef> // nullptr_t
 #include <cstdint> // uint32_t
+#include <initializer_list>
 #include <iostream> // istream, ostream
 #include <string>
 
@@ -36,20 +38,28 @@ public:
 	Value& operator=(const Value& other);
 
 	Value(bool value);
+	Value(int value);
 	Value(double value);
 	Value(const char* value);
 	Value(const std::string& value);
 	Value(const Array& value);
 	Value(const Object& value);
+	Value(const std::initializer_list<Value>& values);
 
 	// ------------------------------------------
 
 	static Value parse(const std::string& input);
 	std::string dump(const uint32_t indent = 0, const char indentCharacter = ' ') const;
 
+	// ------------------------------------------
+
 	// Array index operator
-	Value operator[](size_t index);
-	Value operator[](const std::string& key);
+	Value& operator[](size_t index);
+	Value& operator[](const std::string& key);
+	const Value& operator[](size_t index) const;
+	const Value& operator[](const std::string& key) const;
+
+	// ------------------------------------------
 
 	Type type() const { return m_type; }