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Viewing changes to contrib/ICSharpCode.NRefactory.CSharp/Refactoring/CodeActions/CreateLocalVariableAction.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/CreateLocalVariableAction.cs
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// 
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// CreateLocalVariable.cs
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//  
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// Author:
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//       Mike Krüger <mkrueger@novell.com>
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// 
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// Copyright (c) 2011 Novell, Inc (http://www.novell.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.Collections.Generic;
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namespace ICSharpCode.NRefactory.CSharp.Refactoring
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{
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        [ContextAction("Create local variable", Description = "Creates a local variable for a undefined variable.")]
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        public class CreateLocalVariableAction : ICodeActionProvider
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        {
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                public IEnumerable<CodeAction> GetActions(RefactoringContext context)
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                {
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                        var identifier = context.GetNode<IdentifierExpression>();
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                        if (identifier == null) {
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                                yield break;
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                        }
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                        if (CreateFieldAction.IsInvocationTarget(identifier)) {
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                                yield break;
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                        }
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                        var statement = context.GetNode<Statement>();
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                        if (statement == null) {
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                                yield break;
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                        }
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                        if (!(context.Resolve(identifier).IsError)) {
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                                yield break;
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                        }
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                        var guessedType = CreateFieldAction.GuessAstType(context, identifier);
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                        if (guessedType == null) {
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                                yield break;
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                        }
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                        yield return new CodeAction(context.TranslateString("Create local variable"), script => {
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                                var initializer = new VariableInitializer(identifier.Identifier);
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                                var decl = new VariableDeclarationStatement() {
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                                        Type = guessedType,
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                                        Variables = { initializer }
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                                };
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                                if (identifier.Parent is AssignmentExpression && ((AssignmentExpression)identifier.Parent).Left == identifier) {
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                                        initializer.Initializer = ((AssignmentExpression)identifier.Parent).Right.Clone();
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                                        if (!context.UseExplicitTypes)
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                                                decl.Type = new SimpleType("var");
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                                        script.Replace(statement, decl);
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                                } else {
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                                        script.InsertBefore(statement, decl);
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                                }
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                        });
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                }
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        }
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}
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