/// <summary>
/// Adds an object with singleton lifetime for the specified key
/// </summary>
/// <typeparam name="TSrc">The type that will be used as a key</typeparam>
/// <typeparam name="TTarg">The type of the object that will be held by the singleton lifetime container</typeparam>
/// <param name="obj">Association container to which the addition is performed</param>
/// <param name="val">The object that will be held by the singleton lifetime container</param>
public static void AddSingleton <TSrc, TTarg>(this IDirectSingletonAssociationSupport <Type> obj, TTarg val)
{
Contract.Requires(obj != null);
obj.AddSingleton(typeof(TSrc), (object)val);
}
/// <summary>
/// Attempts to add an object with singleton lifetime for the specified key
/// </summary>
/// <typeparam name="TSrc">The type that will be used as a key</typeparam>
/// <typeparam name="TTarg">The type of the object that will be held by the singleton lifetime container</typeparam>
/// <param name="obj">Association container to which the addition is performed</param>
/// <param name="val">The object that will be held by the singleton lifetime container</param>
/// <returns>True if the association was added successfully (that is AssociationContainer did not contained lifetime container with the same key); overwise false</returns>
public static bool TryAddSingleton <TSrc, TTarg>(this IDirectSingletonAssociationSupport <Type> obj, TTarg val)
{
TurboContract.Requires(obj != null, conditionString: "obj != null");
return(obj.TryAddSingleton(typeof(TSrc), (object)val));
}