Catel.IoC.TypeFactory.CanConstructorBeUsed C# (CSharp) Method

CanConstructorBeUsed() private method

Determines whether the specified constructor can be used for dependency injection.
private CanConstructorBeUsed ( ConstructorInfo constructor, object tag, bool autoCompleteDependencies ) : bool
constructor System.Reflection.ConstructorInfo The constructor.
tag object The preferred tag when resolving dependencies.
autoCompleteDependencies bool if set to true, additional dependencies can be completed from the .
return bool
        private bool CanConstructorBeUsed(ConstructorInfo constructor, object tag, bool autoCompleteDependencies, params object[] parameters)
        {
            Log.Debug("Checking if constructor '{0}' can be used", constructor.GetSignature());

            if (constructor.IsStatic)
            {
                Log.Debug("Constructor is not valid because it is static");
                return false;
            }

            bool validConstructor = true;
            var ctorParameters = constructor.GetParameters();
            for (int i = 0; i < parameters.Length; i++)
            {
                var ctorParameter = ctorParameters[i];
                var ctorParameterType = ctorParameter.ParameterType;

                if (!IsValidParameterValue(ctorParameterType, parameters[i]))
                {
                    Log.Debug("Constructor is not valid because value '{0}' cannot be used for parameter '{0}'",
                        ObjectToStringHelper.ToString(parameters[i]), ctorParameter.Name);

                    validConstructor = false;
                    break;
                }
            }

            if (validConstructor && autoCompleteDependencies)
            {
                if (ctorParameters.Length > parameters.Length)
                {
                    // check if all the additional parameters are registered in the service locator
                    for (int j = parameters.Length; j < ctorParameters.Length; j++)
                    {
                        var parameterToResolve = ctorParameters[j];
                        var parameterTypeToResolve = parameterToResolve.ParameterType;

                        if (!_serviceLocator.IsTypeRegistered(parameterTypeToResolve))
                        {
                            Log.Debug("Constructor is not valid because parameter '{0}' cannot be resolved from the dependency resolver", parameterToResolve.Name);

                            validConstructor = false;
                            break;
                        }
                    }
                }
            }

            Log.Debug("The constructor is valid and can be used");

            return validConstructor;
        }