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#region

/* -----------------------------------------------------------------------

 * <copyright file="EnumerableExtensions.cs" company="GRNet">

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 * Copyright 2011-2012 GRNET S.A. All rights reserved.

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#endregion

using System;

using System.Collections.Generic;

using System.Diagnostics.Contracts;

using System.Linq;

using System.Linq.Expressions;

using System.Text;

namespace Pithos.Core

{

    public static class EnumerableExtensions

    {

        public static IEnumerable<T> Splice<T>(this IList<T> array,int startIndex,int endIndex=-1)

        {

            if (array==null)

                throw new ArgumentNullException("array");

            if (startIndex<0)

                throw new ArgumentOutOfRangeException("startIndex");            

            Contract.EndContractBlock();

            if (startIndex>=array.Count)

                yield break;

            if (endIndex == -1)

                endIndex = array.Count;

            for (var i = startIndex; i < endIndex; i++)

                yield return array[i];

        }

        public static void ApplyAction<T>(this IEnumerable<T> list,Action<T> action)

        {

            if (list == null)

                return;

            foreach (var item in list)

            {

                action(item);

            }

        }

    }

}