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//
// ConvertAnonymousDelegateToExpression.cs
//
// Author:
// Simon Lindgren <simon.n.lindgren@gmail.com>
//
// Copyright (c) 2012 Simon Lindgren
//
// 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.
namespace ICSharpCode.NRefactory.CSharp.Refactoring
{
[ContextAction("Convert anonymous delegate to lambda block",
Description = "Converts an anonymous delegate into a lambda in block form.")]
public class ConvertAnonymousDelegateToLambdaAction : SpecializedCodeAction<AnonymousMethodExpression>
{
#region implemented abstract members of SpecializedCodeAction
protected override CodeAction GetAction(RefactoringContext context, AnonymousMethodExpression node)
{
if (context.Location < node.DelegateToken.StartLocation || context.Location >= node.Body.StartLocation)
return null;
if (!node.HasParameterList)
return null;
return new CodeAction(context.TranslateString("Convert to lambda block"), script => {
var parent = node.Parent;
while (!(parent is Statement))
parent = parent.Parent;
bool explicitLambda = parent is VariableDeclarationStatement && ((VariableDeclarationStatement)parent).Type.IsVar();
var lambda = new LambdaExpression { Body = node.Body.Clone() };
foreach (var parameter in node.Parameters) {
if (explicitLambda) {
lambda.Parameters.Add(new ParameterDeclaration { Type = parameter.Type.Clone(), Name = parameter.Name });
} else {
lambda.Parameters.Add(new ParameterDeclaration { Name = parameter.Name });
}
}
script.Replace(node, lambda);
}, node);
}
#endregion
}
}
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