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Viewing changes to external/nrefactory/ICSharpCode.NRefactory.CSharp/Refactoring/CodeActions/ConvertLambdaBodyExpressionToStatementAction.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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external/nrefactory/ICSharpCode.NRefactory.CSharp/Refactoring/CodeActions/ConvertLambdaBodyExpressionToStatementAction.cs
 
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// 
 
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// ConvertLambdaBodyExpressionToStatementAction.cs
 
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// 
 
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// Author:
 
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//      Mansheng Yang <lightyang0@gmail.com>
 
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// 
 
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// Copyright (c) 2012 Mansheng Yang <lightyang0@gmail.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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namespace ICSharpCode.NRefactory.CSharp.Refactoring
 
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{
 
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        [ContextAction ("Converts expression of lambda body to statement",
 
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                                        Description = "Converts expression of lambda body to statement")]
 
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        public class ConvertLambdaBodyExpressionToStatementAction : SpecializedCodeAction<LambdaExpression>
 
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        {
 
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                protected override CodeAction GetAction (RefactoringContext context, LambdaExpression node)
 
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                {
 
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                        if (!node.ArrowToken.Contains (context.Location))
 
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                                return null;
 
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                        var bodyExpr = node.Body as Expression;
 
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                        if (bodyExpr == null)
 
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                                return null;
 
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                        return new CodeAction (context.TranslateString ("Convert to lambda statement"),
 
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                                script =>
 
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                                {
 
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                                        var body = new BlockStatement ();
 
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                                        if (RequireReturnStatement (context, node)) {
 
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                                                body.Add (new ReturnStatement (bodyExpr.Clone ()));
 
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                                        } else {
 
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                                                body.Add (new ExpressionStatement (bodyExpr.Clone ()));
 
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                                        }
 
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                                        script.Replace (bodyExpr, body);
 
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                                },
 
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                                node
 
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                        );
 
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                }
 
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                static bool RequireReturnStatement (RefactoringContext context, LambdaExpression lambda)
 
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                {
 
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                        var type = LambdaHelper.GetLambdaReturnType (context, lambda);
 
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                        return type != null && type.ReflectionName != "System.Void";
 
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                }
 
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        }
 
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}