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//
// AddAnotherAccessor.cs
//
// Author:
// Mike Krüger <mkrueger@novell.com>
//
// Copyright (c) 2011 Mike Krüger <mkrueger@novell.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System.Threading;
using System.Collections.Generic;
namespace ICSharpCode.NRefactory.CSharp.Refactoring
{
/// <summary>
/// Add another accessor to a property declaration that has only one.
/// </summary>
[ContextAction("Add another accessor", Description = "Adds second accessor to a property.")]
public class AddAnotherAccessorAction : ICodeActionProvider
{
public IEnumerable<CodeAction> GetActions(RefactoringContext context)
{
var pdecl = GetPropertyDeclaration(context);
if (pdecl == null || !pdecl.Getter.IsNull && !pdecl.Setter.IsNull) {
yield break;
}
var type = pdecl.Parent as TypeDeclaration;
if (type != null && type.ClassType == ClassType.Interface) {
yield break;
}
yield return new CodeAction (pdecl.Setter.IsNull ? context.TranslateString("Add setter") : context.TranslateString("Add getter"), script => {
Statement accessorStatement = null;
var accessor = new Accessor ();
if (!pdecl.Getter.IsNull && !pdecl.Getter.Body.IsNull || !pdecl.Setter.IsNull && !pdecl.Setter.Body.IsNull) {
accessorStatement = BuildAccessorStatement(context, pdecl);
accessor.Body = new BlockStatement { accessorStatement };
}
accessor.Role = pdecl.Setter.IsNull ? PropertyDeclaration.SetterRole : PropertyDeclaration.GetterRole;
if (pdecl.Setter.IsNull && !pdecl.Getter.IsNull) {
script.InsertAfter(pdecl.Getter, accessor);
} else if (pdecl.Getter.IsNull && !pdecl.Setter.IsNull) {
script.InsertBefore(pdecl.Setter, accessor);
} else {
script.InsertBefore(pdecl.Getter, accessor);
}
if (accessorStatement != null)
script.Select(accessorStatement);
script.FormatText(pdecl);
}, pdecl.NameToken);
}
static Statement BuildAccessorStatement (RefactoringContext context, PropertyDeclaration pdecl)
{
if (pdecl.Setter.IsNull && !pdecl.Getter.IsNull) {
var field = RemoveBackingStoreAction.ScanGetter (context, pdecl);
if (field != null && !field.IsReadOnly && !field.IsConst)
return new ExpressionStatement (new AssignmentExpression (new IdentifierExpression (field.Name), AssignmentOperatorType.Assign, new IdentifierExpression ("value")));
}
if (!pdecl.Setter.IsNull && pdecl.Getter.IsNull) {
var field = RemoveBackingStoreAction.ScanSetter (context, pdecl);
if (field != null)
return new ReturnStatement (new IdentifierExpression (field.Name));
}
return new ThrowStatement (new ObjectCreateExpression (context.CreateShortType ("System", "NotImplementedException")));
}
static PropertyDeclaration GetPropertyDeclaration (RefactoringContext context)
{
var node = context.GetNode ();
if (node == null)
return null;
return node.Parent as PropertyDeclaration;
}
}
}
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