56 lines
2.1 KiB
C#
56 lines
2.1 KiB
C#
/*
|
|
* QR code generator library (.NET)
|
|
*
|
|
* Copyright (c) Manuel Bleichenbacher (MIT License)
|
|
* https://github.com/manuelbl/QrCodeGenerator
|
|
* Copyright (c) Project Nayuki (MIT License)
|
|
* https://www.nayuki.io/page/qr-code-generator-library
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
* IN THE SOFTWARE.
|
|
*/
|
|
|
|
using System;
|
|
using System.Collections;
|
|
|
|
namespace zero.Rendering.QrCode;
|
|
|
|
/// <summary>
|
|
/// Helper functions to check for valid arguments.
|
|
/// </summary>
|
|
internal static class Objects
|
|
{
|
|
/// <summary>
|
|
/// Ensures that the specified argument is <i>not null</i>.
|
|
/// <para>
|
|
/// Throws a <see cref="ArgumentNullException"/> exception if the argument is <c>null</c>.
|
|
/// </para>
|
|
/// </summary>
|
|
/// <typeparam name="T">The type of the argument.</typeparam>
|
|
/// <param name="arg">The argument to check.</param>
|
|
/// <returns>Argument passed to function.</returns>
|
|
/// <exception cref="ArgumentNullException">The specified argument is <c>null</c>.</exception>
|
|
internal static T RequireNonNull<T>(T arg)
|
|
{
|
|
if (arg == null)
|
|
{
|
|
throw new ArgumentNullException();
|
|
}
|
|
return arg;
|
|
}
|
|
} |