src/EditorFeatures/CSharpTest/PdbSourceDocument/NullResultMetadataAsSourceFileProvider.cs - main - githubmirror/roslyn

src/EditorFeatures/CSharpTest/PdbSourceDocument/NullResultMetadataAsSourceFileProvider.cs

54 строки2 KB

Cyrus Najmabadi

Reapply "Update methods to be `async`." (#81808)

31 дек 2025, 01:59

31 дек 2025, 01:593d73546

// 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.

using System;
using System.Composition;
using System.Diagnostics.CodeAnalysis;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.Host.Mef;
using Microsoft.CodeAnalysis.MetadataAsSource;
using Microsoft.CodeAnalysis.PdbSourceDocument;
using Microsoft.CodeAnalysis.Structure;

namespace Microsoft.CodeAnalysis.Editor.CSharp.UnitTests.PdbSourceDocument;

/// <summary>
/// IMetadataAsSourceFileService has to always return a result, but for our testing
/// we remove the decompilation provider that would normally ensure that. This provider
/// takes it place to ensure we always return a known null result, so we can also verify
/// against it in tests.
/// </summary>
[ExportMetadataAsSourceFileProvider("Dummy"), Shared]
[ExtensionOrder(After = PdbSourceDocumentMetadataAsSourceFileProvider.ProviderName)]
internal sealed class NullResultMetadataAsSourceFileProvider : IMetadataAsSourceFileProvider
{
    // Represents a null result
    public static MetadataAsSourceFile NullResult = new("", null!, null!, null!);

    [ImportingConstructor]
    [Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
    public NullResultMetadataAsSourceFileProvider()
    {
    }

    public void CleanupGeneratedFiles(MetadataAsSourceWorkspace workspace)
    {
    }

    public async Task<MetadataAsSourceFile?> GetGeneratedFileAsync(MetadataAsSourceWorkspace metadataWorkspace, Workspace sourceWorkspace, Project sourceProject, ISymbol symbol, bool signaturesOnly, MetadataAsSourceOptions options, string tempPath, TelemetryMessage? telemetry, CancellationToken cancellationToken)
    {
        return NullResult;
    }

    public Project? MapDocument(Document document)
    {
        return null;
    }

    public bool ShouldCollapseOnOpen(MetadataAsSourceWorkspace workspace, string filePath, BlockStructureOptions options)
    {
        return true;
    }
}