private void InternalRegister(Type contract, string name, IComponentFactory factory,
bool performChecking)
{
if (contract == null)
{
throw new ArgumentNullException(nameof(contract));
}
if (factory == null)
{
throw new ArgumentNullException(nameof(factory));
}
if (performChecking && !Configuration.DisableAttributeChecking)
{
ComponentContextUtils.ThrowIfNotContract(contract);
}
if (!factory.ValidateContractType(contract))
{
throw new CompositionException("This component type / factory cannot be registered with the contract " +
$"{contract.FullName}. The component type is not assignable to the contract " +
"or the factory logic prevents such registration.");
}
factory.Initialize(this);
_repository.Add(new ContractIdentity(contract, name), factory);
}