Add scope to registration, check for unset scope

source/poodinis/container.d

@@ -44,7 +44,7 @@ class Container {
 			checkValidity!(InterfaceType)(registeredType, instantiatableType);
 		}
 		
-		Registration newRegistration = { registeredType, instantiatableType };
+		Registration newRegistration = { registeredType, instantiatableType, new NullScope() };
 		registrations[newRegistration.registeredType] = newRegistration;
 		return newRegistration;
 	}

source/poodinis/registration.d

@@ -3,8 +3,29 @@ module poodinis.registration;
 struct Registration {
 	TypeInfo registeredType = null;
 	TypeInfo_Class instantiatableType = null;
+	RegistrationScope registationScope = null;
 	
 	public Object getInstance() {
+		if (registationScope is null) {
+			throw new NoScopeDefinedException(registeredType);
+		}
+		
 		return instantiatableType.create();
 	}
 }
+
+class NoScopeDefinedException : Exception {
+	this(TypeInfo type) {
+		super("No scope defined for registration of type " ~ type.toString());
+	}
+}
+
+interface RegistrationScope {
+	public Object getInstance();
+}
+
+class NullScope : RegistrationScope {
+	public Object getInstance() {
+		return null;
+	}
+}

test/poodinis/registrationtest.d

@@ -0,0 +1,15 @@
+import poodinis.registration;
+
+import std.exception;
+
+version(unittest) {
+	class TestType {
+	}
+	
+	// Test getting instance without scope defined throws exception
+	unittest {
+		Registration registration = Registration();
+		registration.registeredType = typeid(TestType);
+		assertThrown!(NoScopeDefinedException)(registration.getInstance());
+	}
+}