path: root/src/ProtocolBuffers/ThrowHelper.cs

#region Copyright notice and license
// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// http://github.com/jskeet/dotnet-protobufs/
// Original C++/Java/Python code:
// http://code.google.com/p/protobuf/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#endregion

using System;
using System.Collections.Generic;

namespace Google.ProtocolBuffers {
  /// <summary>
  /// Helper methods for throwing exceptions
  /// </summary>
  public static class ThrowHelper {

    /// <summary>
    /// Throws an ArgumentNullException if the given value is null.
    /// </summary>
    public static void ThrowIfNull(object value, string name) {
      if (value == null) {
        throw new ArgumentNullException(name);
      }
    }

    /// <summary>
    /// Throws an ArgumentNullException if the given value is null.
    /// </summary>
    public static void ThrowIfNull(object value) {
      if (value == null) {
        throw new ArgumentNullException();
      }
    }

    /// <summary>
    /// Throws an ArgumentNullException if the given value or any element within it is null.
    /// </summary>
    public static void ThrowIfAnyNull<T>(IEnumerable<T> sequence) {
      foreach (T t in sequence) {
        if (t == null) {
          throw new ArgumentNullException();
        }
      }
    }
  }
}