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Viewing changes to contrib/ICSharpCode.NRefactory.CSharp/Refactoring/CodeActions/InlineLocalVariableAction.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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contrib/ICSharpCode.NRefactory.CSharp/Refactoring/CodeActions/InlineLocalVariableAction.cs
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// 
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// InlineLocalVariableAction.cs
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//  
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// Author:
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//       Mike Krüger <mkrueger@xamarin.com>
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// 
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// Copyright (c) 2012 Xamarin Inc. (http://xamarin.com)
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// 
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// 
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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// 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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using System.Threading;
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using System.Collections.Generic;
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using System.Linq;
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using ICSharpCode.NRefactory.Semantics;
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using ICSharpCode.NRefactory.CSharp.Resolver;
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namespace ICSharpCode.NRefactory.CSharp.Refactoring
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{
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        [ContextAction("Inline local variable", Description = "Inlines a local variable.")]
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        public class InlineLocalVariableAction : ICodeActionProvider
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        {
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                static FindReferences refFinder = new FindReferences();
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                public IEnumerable<CodeAction> GetActions(RefactoringContext context)
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                {
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                        if (context.IsSomethingSelected) {
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                                yield break;
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                        }
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                        var node = context.GetNode<VariableDeclarationStatement>();
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                        if (node == null || node.Variables.Count != 1) {
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                                yield break;
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                        }
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                        var initializer = node.Variables.First();
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                        if (!initializer.NameToken.Contains(context.Location) || initializer.Initializer.IsNull) {
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                                yield break;
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                        }
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                        var resolveResult = context.Resolve(initializer) as LocalResolveResult;
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                        if (resolveResult == null || resolveResult.IsError) {
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                                yield break;
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                        }
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                        var unit = context.RootNode as CompilationUnit;
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                        if (unit == null) {
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                                yield break;
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                        }
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                        yield return new CodeAction(context.TranslateString("Inline local variable"), script => {
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                                refFinder.FindLocalReferences(resolveResult.Variable, context.ParsedFile, unit, context.Compilation, (n, r) => script.Replace(n, initializer.Initializer.Clone()), default(CancellationToken));
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                                script.Remove(node);
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                        });
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                }
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        }
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}