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feat: Added extension method for dynamically converting a sequence to a generic list of the given item type

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Chris Cameron 2020-04-13 14:45:43 -04:00
parent e0663bdbfd
commit 5e61098e71
1 changed files with 25 additions and 0 deletions
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25
ICD.Common.Utils/Extensions/EnumerableExtensions.cs
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@ -1,4 +1,5 @@
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using ICD.Common.Properties;
@ -932,6 +933,30 @@ namespace ICD.Common.Utils.Extensions
return array;
}
/// <summary>
/// Creates a generic List of the given item type.
/// </summary>
/// <param name="extends"></param>
/// <param name="itemType"></param>
/// <returns></returns>
public static IList ToList<T>([NotNull] this IEnumerable<T> extends, [NotNull] Type itemType)
{
if (extends == null)
throw new ArgumentNullException("extends");
if (itemType == null)
throw new ArgumentNullException("itemType");
Type genericListType = typeof(List<>);
Type specificListType = genericListType.MakeGenericType(itemType);
IList list = (IList)ReflectionUtils.CreateInstance(specificListType);
foreach (object item in extends)
list.Add(item);
return list;
}
/// <summary>
/// Optimized ToList implementation with fewer allocations.
/// </summary>