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@ -1,53 +1,74 @@ |
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#region Copyright notice and license |
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// Protocol Buffers - Google's data interchange format |
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// Copyright 2008 Google Inc. All rights reserved. |
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// https://developers.google.com/protocol-buffers/ |
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// |
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// Redistribution and use in source and binary forms, with or without |
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// modification, are permitted provided that the following conditions are |
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// met: |
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// |
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// * Redistributions of source code must retain the above copyright |
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// notice, this list of conditions and the following disclaimer. |
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// * Redistributions in binary form must reproduce the above |
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// copyright notice, this list of conditions and the following disclaimer |
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// in the documentation and/or other materials provided with the |
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// distribution. |
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// * Neither the name of Google Inc. nor the names of its |
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// contributors may be used to endorse or promote products derived from |
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// this software without specific prior written permission. |
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// |
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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#endregion |
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using System; |
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namespace Google.Protobuf |
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{ |
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/// <summary> |
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/// Helper methods for throwing exceptions |
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/// </summary> |
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internal static class ThrowHelper |
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{ |
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/// <summary> |
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/// Throws an ArgumentNullException if the given value is null. |
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/// </summary> |
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internal static void ThrowIfNull(object value, string name) |
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{ |
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if (value == null) |
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{ |
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throw new ArgumentNullException(name); |
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} |
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} |
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} |
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#region Copyright notice and license |
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// Protocol Buffers - Google's data interchange format |
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// Copyright 2008 Google Inc. All rights reserved. |
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// https://developers.google.com/protocol-buffers/ |
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// |
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// Redistribution and use in source and binary forms, with or without |
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// modification, are permitted provided that the following conditions are |
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|
// met: |
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|
|
// |
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// * Redistributions of source code must retain the above copyright |
|
|
|
|
// notice, this list of conditions and the following disclaimer. |
|
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|
|
// * Redistributions in binary form must reproduce the above |
|
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|
|
// copyright notice, this list of conditions and the following disclaimer |
|
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|
|
// in the documentation and/or other materials provided with the |
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|
|
// distribution. |
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// * Neither the name of Google Inc. nor the names of its |
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// contributors may be used to endorse or promote products derived from |
|
|
|
|
// this software without specific prior written permission. |
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// |
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
|
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|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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#endregion |
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using System; |
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namespace Google.Protobuf |
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{ |
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/// <summary> |
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/// Helper methods for throwing exceptions |
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/// </summary> |
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public static class Preconditions |
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{ |
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/// <summary> |
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/// Throws an ArgumentNullException if the given value is null, otherwise |
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/// return the value to the caller. |
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/// </summary> |
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public static T CheckNotNull<T>(T value, string name) where T : class
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{ |
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if (value == null) |
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{ |
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throw new ArgumentNullException(name); |
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} |
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return value; |
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} |
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/// <summary> |
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/// Throws an ArgumentNullException if the given value is null, otherwise |
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/// return the value to the caller. |
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/// </summary> |
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/// <remarks> |
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/// This is equivalent to <see cref="CheckNotNull"/> but without the type parameter |
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/// constraint. In most cases, the constraint is useful to prevent you from calling CheckNotNull |
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/// with a value type - but it gets in the way if either you want to use it with a nullable |
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/// value type, or you want to use it with an unconstrained type parameter. |
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/// </remarks> |
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internal static T CheckNotNullUnconstrained<T>(T value, string name) |
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{ |
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if (value == null) |
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{ |
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throw new ArgumentNullException(name); |
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} |
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return value; |
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} |
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} |
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} |
Jon Skeet
10 years ago