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//
// CreateEnumValue.cs
//
// Author:
// Mike Krüger <mkrueger@xamarin.com>
//
// Copyright (c) 2013 Xamarin Inc. (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;
using ICSharpCode.NRefactory.PatternMatching;
using System.Linq;
using ICSharpCode.NRefactory.TypeSystem;
using System.Threading;
using System.Collections.Generic;
using ICSharpCode.NRefactory.CSharp.Resolver;
using ICSharpCode.NRefactory.Semantics;
namespace ICSharpCode.NRefactory.CSharp.Refactoring
{
[ContextAction("Create enum value", Description = "Creates an enum value for a undefined enum value.")]
public class CreateEnumValue : ICodeActionProvider
{
internal static bool IsInvocationTarget(AstNode node)
{
var invoke = node.Parent as InvocationExpression;
return invoke != null && invoke.Target == node;
}
internal static Expression GetCreatePropertyOrFieldNode(RefactoringContext context)
{
return context.GetNode(n => n is IdentifierExpression || n is MemberReferenceExpression || n is NamedExpression) as Expression;
}
public IEnumerable<CodeAction> GetActions(RefactoringContext context)
{
var expr = GetCreatePropertyOrFieldNode(context);
if (expr == null)
yield break;
if (!(expr is MemberReferenceExpression))
yield break;
var propertyName = CreatePropertyAction.GetPropertyName(expr);
if (propertyName == null)
yield break;
if (IsInvocationTarget(expr))
yield break;
var statement = expr.GetParent<Statement>();
if (statement == null)
yield break;
if (!(context.Resolve(expr).IsError))
yield break;
var guessedType = CreateFieldAction.GuessType(context, expr);
if (guessedType == null || guessedType.Kind != TypeKind.Enum)
yield break;
var state = context.GetResolverStateBefore(expr);
if (state.CurrentMember == null || state.CurrentTypeDefinition == null)
yield break;
yield return new CodeAction(context.TranslateString("Create enum value"), script => {
var decl = new EnumMemberDeclaration {
Name = propertyName
};
script.InsertWithCursor(context.TranslateString("Create enum value"), guessedType.GetDefinition (), decl);
}, expr);
}
}
}
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