Replacing static names in exception messages with nameof literal

TelegramBotBase/Factories/DefaultStartFormFactory.cs

@@ -12,7 +12,7 @@ public class DefaultStartFormFactory : IStartFormFactory
     {
         if (!typeof(FormBase).IsAssignableFrom(startFormClass))
         {
-            throw new ArgumentException("startFormClass argument must be a FormBase type");
+            throw new ArgumentException($"{nameof(startFormClass)} argument must be a {nameof(FormBase)} type");
         }
 
         _startFormClass = startFormClass;

TelegramBotBase/Factories/ServiceProviderStartFormFactory.cs

@@ -14,7 +14,7 @@ public class ServiceProviderStartFormFactory : IStartFormFactory
     {
         if (!typeof(FormBase).IsAssignableFrom(startFormClass))
         {
-            throw new ArgumentException("startFormClass argument must be a FormBase type");
+            throw new ArgumentException($"{nameof(startFormClass)} argument must be a {nameof(FormBase)} type");
         }
 
         _startFormClass = startFormClass;

TelegramBotBase/States/JSONStateMachine.cs

@@ -29,7 +29,7 @@ public class JsonStateMachine : IStateMachine
 
         if (FallbackStateForm != null && !FallbackStateForm.IsSubclassOf(typeof(FormBase)))
         {
-            throw new ArgumentException("FallbackStateForm is not a subclass of FormBase");
+            throw new ArgumentException($"{nameof(FallbackStateForm)} is not a subclass of {nameof(FormBase)}");
         }
 
         FilePath = file ?? throw new ArgumentNullException(nameof(file));

TelegramBotBase/States/SimpleJSONStateMachine.cs

@@ -30,7 +30,7 @@ public class SimpleJsonStateMachine : IStateMachine
 
         if (FallbackStateForm != null && !FallbackStateForm.IsSubclassOf(typeof(FormBase)))
         {
-            throw new ArgumentException("FallbackStateForm is not a subclass of FormBase");
+            throw new ArgumentException($"{nameof(FallbackStateForm)} is not a subclass of {nameof(FormBase)}");
         }
 
         FilePath = file ?? throw new ArgumentNullException(nameof(file));

TelegramBotBase/States/XMLStateMachine.cs

@@ -27,7 +27,7 @@ public class XmlStateMachine : IStateMachine
 
         if (FallbackStateForm != null && !FallbackStateForm.IsSubclassOf(typeof(FormBase)))
         {
-            throw new ArgumentException("FallbackStateForm is not a subclass of FormBase");
+            throw new ArgumentException($"{nameof(FallbackStateForm)} is not a subclass of {nameof(FormBase)}");
         }
 
         FilePath = file ?? throw new ArgumentNullException(nameof(file));