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Viewing changes to external/nrefactory/ICSharpCode.NRefactory.CSharp/Refactoring/CodeActions/GenerateGetterAction.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/GenerateGetterAction.cs
 
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// 
 
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// GenerateGetter.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;
 
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using ICSharpCode.NRefactory.PatternMatching;
 
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using System.Linq;
 
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using System.Threading;
 
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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("Generate getter", Description = "Generates a getter for a field.")]
 
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        public class GenerateGetterAction : ICodeActionProvider
 
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        {
 
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                public IEnumerable<CodeAction> GetActions(RefactoringContext context)
 
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                {
 
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                        var initializer = GetVariableInitializer(context);
 
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                        if (initializer == null || !initializer.NameToken.Contains(context.Location.Line, context.Location.Column)) {
 
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                                yield break;
 
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                        }
 
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                        var type = initializer.Parent.Parent as TypeDeclaration;
 
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                        if (type == null) {
 
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                                yield break;
 
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                        }
 
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                        foreach (var member in type.Members) {
 
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                                if (member is PropertyDeclaration && ContainsGetter((PropertyDeclaration)member, initializer)) {
 
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                                        yield break;
 
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                                }
 
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                        }
 
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                        var field = initializer.Parent as FieldDeclaration;
 
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                        if (field == null) {
 
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                                yield break;
 
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                        }
 
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                        yield return new CodeAction(context.TranslateString("Create getter"), script => {
 
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                                script.InsertWithCursor(
 
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                                        context.TranslateString("Create getter"),
 
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                                        Script.InsertPosition.After,
 
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                                        GeneratePropertyDeclaration(context, field, initializer));
 
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                        }, initializer);
 
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                }
 
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                static PropertyDeclaration GeneratePropertyDeclaration (RefactoringContext context, FieldDeclaration field, VariableInitializer initializer)
 
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                {
 
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                        var mod = ICSharpCode.NRefactory.CSharp.Modifiers.Public;
 
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                        if (field.HasModifier (ICSharpCode.NRefactory.CSharp.Modifiers.Static))
 
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                                mod |= ICSharpCode.NRefactory.CSharp.Modifiers.Static;
 
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                        return new PropertyDeclaration () {
 
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                                Modifiers = mod,
 
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                                Name = context.GetNameProposal (initializer.Name, false),
 
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                                ReturnType = field.ReturnType.Clone (),
 
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                                Getter = new Accessor () {
 
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                                        Body = new BlockStatement () {
 
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                                                new ReturnStatement (new IdentifierExpression (initializer.Name))
 
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                                        }
 
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                                }
 
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                        };
 
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                }
 
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                bool ContainsGetter (PropertyDeclaration property, VariableInitializer initializer)
 
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                {
 
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                        if (property.Getter.IsNull || property.Getter.Body.Statements.Count () != 1)
 
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                                return false;
 
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                        var ret = property.Getter.Body.Statements.Single () as ReturnStatement;
 
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                        if (ret == null)
 
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                                return false;
 
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                        return ret.Expression.IsMatch (new IdentifierExpression (initializer.Name)) || 
 
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                                ret.Expression.IsMatch (new MemberReferenceExpression (new ThisReferenceExpression (), initializer.Name));
 
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                }
 
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                VariableInitializer GetVariableInitializer (RefactoringContext context)
 
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                {
 
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                        return context.GetNode<VariableInitializer> ();
 
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                }
 
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        }
 
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}
 
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