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using System;

namespace Konstruktor
{
	public interface IScope : IDisposable
	{

		// Resolve in this scope or parent scopes, create a new instance in this scope if not available yet.
		object resolve(Type t);

		// Resolve in this scope: create a new instance that does not exist in this scope (ignoring the ancestor scopes).
		object resolveLocal(Type t);
		
		void store<TypeT>(TypeT instance);
		void own(object instance_);

		IScope beginNestedScope();

		// internal
		bool tryResolveExisting(Type t, out object o);
	}

	public static class ScopeExtensions
	{
		public static T resolve<T>(this IScope scope)
		{
			return (T) scope.resolve(typeof (T));
		}

		public static T resolveLocal<T>(this IScope scope)
		{
			return (T) scope.resolveLocal(typeof (T));
		}
	}
}