2 files changed, 18 insertions, 10 deletions

diff --git a/src/core/common/Argument.cpp b/src/core/common/Argument.cpp
index 8face55..ac1edf4 100644
--- a/src/core/common/Argument.cpp
+++ b/src/core/common/Argument.cpp
@@ -48,7 +48,6 @@ Argument::Argument(std::string name, const RttiType &type)
 {
 }
 
-
 Argument Argument::Any(std::string name)
 {
 	return Argument{name, RttiTypes::None, RttiTypes::None, nullptr, false};
@@ -102,13 +101,15 @@ Argument Argument::String(std::string name,
 
 Argument Argument::Object(std::string name, const RttiType &type)
 {
-	return Argument(std::move(name), type, RttiTypes::None, Variant::fromObject(nullptr), false);
+	return Argument(std::move(name), type, RttiTypes::None,
+	                Variant::fromObject(nullptr), false);
 }
 
 Argument Argument::Object(std::string name, const RttiType &type,
                           std::nullptr_t)
 {
-	return Argument(std::move(name), type, RttiTypes::None, Variant::fromObject(nullptr), true);
+	return Argument(std::move(name), type, RttiTypes::None,
+	                Variant::fromObject(nullptr), true);
 }
 
 Argument Argument::Function(std::string name)
@@ -169,7 +170,7 @@ Argument Argument::Map(std::string name, const RttiType &innerType,
 	                true);
 }
 
-bool Argument::validate(Variant &var, Logger &logger)
+bool Argument::validate(Variant &var, Logger &logger) const
 {
 	if (!VariantConverter::convert(var, type, innerType, logger,
 	                               VariantConverter::Mode::SAFE)) {
@@ -208,7 +209,7 @@ Arguments::Arguments(std::initializer_list<Argument> arguments)
 {
 }
 
-bool Arguments::validateArray(Variant::arrayType &arr, Logger &logger)
+bool Arguments::validateArray(Variant::arrayType &arr, Logger &logger) const
 {
 	Logger nullLogger;
 
@@ -251,7 +252,7 @@ bool Arguments::validateArray(Variant::arrayType &arr, Logger &logger)
 }
 
 bool Arguments::validateMap(Variant::mapType &map, Logger &logger,
-                            bool ignoreUnknown)
+                            bool ignoreUnknown) const
 {
 	Logger nullLogger;
 
@@ -271,7 +272,8 @@ bool Arguments::validateMap(Variant::mapType &map, Logger &logger,
 			ok = ok && set[idx];
 		} else {
 			if (ignoreUnknown) {
-				logger.note(std::string("Ignoring argument \"") + e.first + std::string("\""));
+				logger.note(std::string("Ignoring argument \"") + e.first +
+				            std::string("\""));
 			} else {
 				logger.error(std::string("Unknown argument \"") + e.first +
 				             std::string("\""));
diff --git a/src/core/common/Argument.hpp b/src/core/common/Argument.hpp
index 7227ddb..23078b2 100644
--- a/src/core/common/Argument.hpp
+++ b/src/core/common/Argument.hpp
@@ -380,7 +380,7 @@ public:
 	 * @param logger is the logger instance to which errors should be written.
 	 * @return true if the given variant was valid, false otherwise.
 	 */
-	bool validate(Variant &var, Logger &logger);
+	bool validate(Variant &var, Logger &logger) const;
 };
 
 /**
@@ -401,6 +401,12 @@ private:
 	std::unordered_map<std::string, size_t> names;
 
 public:
+
+	/**
+	 * Default constructor. Provides no arguments.
+	 */
+	Arguments() {};
+
 	/**
 	 * Constructor of the Arguments class from a list of Argument instances.
 	 *
@@ -422,7 +428,7 @@ public:
 	 * will be written.
 	 * @return true if the operation was successful, false if an error occured.
 	 */
-	bool validateArray(Variant::arrayType &arr, Logger &logger);
+	bool validateArray(Variant::arrayType &arr, Logger &logger) const;
 
 	/**
 	 * Checks whether the content of the given variant map matches the
@@ -441,7 +447,7 @@ public:
 	 * @return true if the operation was successful, false if an error occured.
 	 */
 	bool validateMap(Variant::mapType &map, Logger &logger,
-	                 bool ignoreUnknown = false);
+	                 bool ignoreUnknown = false) const;
 };
 }