using System;

namespace Newtonsoft.Json.Utilities
{
	internal static class BufferUtils
	{
		public static char[] RentBuffer(IArrayPool<char> bufferPool, int minSize)
		{
			if (bufferPool == null)
			{
				return new char[minSize];
			}
			return bufferPool.Rent(minSize);
		}

		public static void ReturnBuffer(IArrayPool<char> bufferPool, char[] buffer)
		{
			if (bufferPool != null)
			{
				bufferPool.Return(buffer);
			}
		}

		public static char[] EnsureBufferSize(IArrayPool<char> bufferPool, int size, char[] buffer)
		{
			if (bufferPool == null)
			{
				return new char[size];
			}
			if (buffer != null)
			{
				bufferPool.Return(buffer);
			}
			return bufferPool.Rent(size);
		}
	}
}
