AssetRipper_AssetRipper/Source/AssetRipper.SourceGenerated.Extensions/EnumerableExtensions.cs

namespace AssetRipper.SourceGenerated.Extensions
{
	public static class EnumerableExtensions
	{
		public static IEnumerable<T> WhereNotNull<T>(this IEnumerable<T?> enumerable) where T : notnull
		{
			foreach (T? item in enumerable)
			{
				if (item is not null)
				{
					yield return item;
				}
			}
		}

		public static IEnumerable<T> ThrowIfNull<T>(this IEnumerable<T?> enumerable) where T : notnull
		{
			foreach (T? item in enumerable)
			{
				if (item is null)
				{
					throw new NullReferenceException();
				}
				yield return item;
			}
		}

		public static IEnumerable<T> MaybeAppend<T>(this IEnumerable<T> enumerable, T? item)
		{
			return item is not null ? enumerable.Append(item) : enumerable;
		}
	}
}