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//
// CreateIndexerAction.cs
//
// Author:
// Mike Krüger <mkrueger@xamarin.com>
//
// Copyright (c) 2012 Xamarin <http://xamarin.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.Collections.Generic;
using System.Linq;
using ICSharpCode.NRefactory.Semantics;
using ICSharpCode.NRefactory.TypeSystem;
using System.Text;
namespace ICSharpCode.NRefactory.CSharp.Refactoring
{
[ContextAction("Create indexer", Description = "Creates an indexer declaration out of an indexer expression.")]
public class CreateIndexerAction : ICodeActionProvider
{
public IEnumerable<CodeAction> GetActions(RefactoringContext context)
{
var indexer = context.GetNode<IndexerExpression>();
if (indexer == null)
yield break;
if (!(context.Resolve(indexer).IsError))
yield break;
var state = context.GetResolverStateBefore(indexer);
if (state.CurrentTypeDefinition == null)
yield break;
var guessedType = CreateFieldAction.GuessAstType(context, indexer);
bool createInOtherType = false;
ResolveResult targetResolveResult = null;
targetResolveResult = context.Resolve(indexer.Target);
createInOtherType = !state.CurrentTypeDefinition.Equals(targetResolveResult.Type.GetDefinition());
bool isStatic;
if (createInOtherType) {
if (targetResolveResult.Type.GetDefinition() == null || targetResolveResult.Type.GetDefinition().Region.IsEmpty)
yield break;
isStatic = targetResolveResult is TypeResolveResult;
if (isStatic && targetResolveResult.Type.Kind == TypeKind.Interface || targetResolveResult.Type.Kind == TypeKind.Enum)
yield break;
} else {
isStatic = indexer.Target is IdentifierExpression && state.CurrentMember.IsStatic;
}
yield return new CodeAction(context.TranslateString("Create indexer"), script => {
var decl = new IndexerDeclaration() {
ReturnType = guessedType,
Getter = new Accessor() {
Body = new BlockStatement() {
new ThrowStatement(new ObjectCreateExpression(context.CreateShortType("System", "NotImplementedException")))
}
},
Setter = new Accessor() {
Body = new BlockStatement() {
new ThrowStatement(new ObjectCreateExpression(context.CreateShortType("System", "NotImplementedException")))
}
},
};
decl.Parameters.AddRange(CreateMethodDeclarationAction.GenerateParameters(context, indexer.Arguments));
if (isStatic)
decl.Modifiers |= Modifiers.Static;
if (createInOtherType) {
if (targetResolveResult.Type.Kind == TypeKind.Interface) {
decl.Getter.Body = null;
decl.Setter.Body = null;
decl.Modifiers = Modifiers.None;
} else {
decl.Modifiers |= Modifiers.Public;
}
script.InsertWithCursor(context.TranslateString("Create indexer"), targetResolveResult.Type.GetDefinition(), decl);
return;
}
script.InsertWithCursor(context.TranslateString("Create indexer"), Script.InsertPosition.Before, decl);
}, indexer);
}
}
}
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