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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
#nullable disable
using System.Composition;
using System.Diagnostics.CodeAnalysis;
using Microsoft.CodeAnalysis.CodeRefactorings;
using Microsoft.CodeAnalysis.CodeRefactorings.AddAwait;
using Microsoft.CodeAnalysis.CSharp.Syntax;
namespace Microsoft.CodeAnalysis.CSharp.CodeRefactorings.AddAwait;
/// <summary>
/// This refactoring complements the AddAwait fixer. It allows adding `await` and `await ... .ConfigureAwait(false)` even there is no compiler error to trigger the fixer.
/// </summary>
[ExportCodeRefactoringProvider(LanguageNames.CSharp, Name = PredefinedCodeRefactoringProviderNames.AddAwait), Shared]
[method: ImportingConstructor]
[method: SuppressMessage("RoslynDiagnosticsReliability", "RS0033:Importing constructor should be [Obsolete]", Justification = "Used in test code: https://github.com/dotnet/roslyn/issues/42814")]
internal sealed partial class CSharpAddAwaitCodeRefactoringProvider()
: AbstractAddAwaitCodeRefactoringProvider<ExpressionSyntax>
{
protected override string GetTitle()
=> CSharpFeaturesResources.Add_await;
protected override string GetTitleWithConfigureAwait()
=> CSharpFeaturesResources.Add_await_and_ConfigureAwaitFalse;
protected override bool IsInAsyncContext(SyntaxNode node)
{
foreach (var current in node.Ancestors())
{
switch (current)
{
case AnonymousFunctionExpressionSyntax anonymousFunction:
return anonymousFunction.AsyncKeyword != default;
case MethodDeclarationSyntax methodDeclaration:
return methodDeclaration.Modifiers.Any(SyntaxKind.AsyncKeyword);
}
}
return false;
}
}
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