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// Copyright (c) Microsoft. All Rights Reserved. Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System.Composition;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.CodeRefactorings;
using Microsoft.CodeAnalysis;
using ICSharpCode.NRefactory6.CSharp.Features.IntroduceVariable;
using ICSharpCode.NRefactory6.CSharp;
namespace MonoDevelop.CSharp.CodeRefactorings.IntroduceVariable
{
[ExportCodeRefactoringProvider(LanguageNames.CSharp, Name = PredefinedCodeRefactoringProviderNames.IntroduceVariable), Shared]
class IntroduceVariableCodeRefactoringProvider : CodeRefactoringProvider
{
static readonly CSharpIntroduceVariableService service = new CSharpIntroduceVariableService ();
public override async Task ComputeRefactoringsAsync(CodeRefactoringContext context)
{
var document = context.Document;
var textSpan = context.Span;
var cancellationToken = context.CancellationToken;
if (document.Project.Solution.Workspace.Kind == WorkspaceKind.MiscellaneousFiles)
{
return;
}
var model = await document.GetSemanticModelAsync (cancellationToken).ConfigureAwait (false);
if (model.IsFromGeneratedCode (cancellationToken))
return;
var result = await service.IntroduceVariableAsync(document, textSpan, cancellationToken).ConfigureAwait(false);
if (!result.ContainsChanges)
{
return;
}
var actions = result.GetCodeRefactoring(cancellationToken).Actions;
context.RegisterRefactorings(actions);
}
}
}
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