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Viewing changes to src/AddIns/DisplayBindings/Data/ICSharpCode.Data.Core/Common/Objects.cs

  • Committer: sk
  • Date: 2011-09-10 05:17:57 UTC
  • Revision ID: halega@halega.com-20110910051757-qfouz1llya9m6boy
4.1.0.7915 Release Candidate 1

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src/AddIns/DisplayBindings/Data/ICSharpCode.Data.Core/Common/Objects.cs
 
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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
 
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// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
 
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#region Usings
 
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using System;
 
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using System.Collections.Generic;
 
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using System.Linq;
 
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using System.Text;
 
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#endregion
 
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namespace ICSharpCode.Data.Core.Common
 
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{
 
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        /// <summary>
 
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        /// ExtensionMethods for System.Object.
 
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        /// </summary>
 
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        public static class Objects
 
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        {
 
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                #region Public methods
 
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                #region DoIfNull
 
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                /// <summary>
 
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                /// Does something if the object isn't null.
 
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                /// </summary>
 
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                /// <typeparam name="TSource"></typeparam>
 
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                /// <param name="source"></param>
 
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                /// <param name="action"></param>
 
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                /// <returns>Source object</returns>
 
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                public static TSource DoIfNull<TSource>(this TSource source, Action action)
 
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                {
 
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                        Helper.CheckIfParameterIsNull(action, "action");
 
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                        if (source == null)
 
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                                action();
 
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                        return source;
 
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                }
 
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                #endregion
 
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                #region DoIfNotNull
 
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                /// <summary>
 
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                /// Does something if the object isn't null, otherwise the method returns null.
 
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                /// </summary>
 
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                /// <typeparam name="TSource"></typeparam>
 
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                /// <typeparam name="TTarget"></typeparam>
 
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                /// <param name="source"></param>
 
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                /// <param name="action"></param>
 
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                /// <returns></returns>
 
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                public static TTarget DoIfNotNull<TSource, TTarget>(this TSource source, Func<TSource, TTarget> action)
 
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                {
 
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                        Helper.CheckIfParameterIsNull(action, "action");
 
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                        return source == null ? default(TTarget) : action(source);
 
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                }
 
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                /// <summary>
 
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                /// Does something if the object isn't null.
 
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                /// </summary>
 
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                /// <typeparam name="TSource"></typeparam>
 
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                /// <param name="source"></param>
 
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                /// <param name="action"></param>
 
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                public static void DoIfNotNull<TSource>(this TSource source, Action<TSource> action)
 
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                {
 
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                        Helper.CheckIfParameterIsNull(action, "action");
 
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                        if (source != null)
 
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                                action(source);
 
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                }
 
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                #endregion
 
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                #endregion
 
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        }
 
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}