File: DocumentHighlighting\IRemoteDocumentHighlightsService.cs
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Project: src\src\Features\Core\Portable\Microsoft.CodeAnalysis.Features.csproj (Microsoft.CodeAnalysis.Features)
// 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.Collections.Immutable;
using System.Runtime.Serialization;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.Shared.Extensions;
 
namespace Microsoft.CodeAnalysis.DocumentHighlighting;
 
internal interface IRemoteDocumentHighlightsService
{
    ValueTask<ImmutableArray<SerializableDocumentHighlights>> GetDocumentHighlightsAsync(
        Checksum solutionChecksum, DocumentId documentId, int position, ImmutableArray<DocumentId> documentIdsToSearch, HighlightingOptions options, CancellationToken cancellationToken);
}
 
[DataContract]
internal readonly struct SerializableDocumentHighlights(DocumentId documentId, ImmutableArray<HighlightSpan> highlightSpans)
{
    [DataMember(Order = 0)]
    public readonly DocumentId DocumentId = documentId;
 
    [DataMember(Order = 1)]
    public readonly ImmutableArray<HighlightSpan> HighlightSpans = highlightSpans;
 
    public async ValueTask<DocumentHighlights> RehydrateAsync(Solution solution)
        => new(await solution.GetRequiredDocumentAsync(DocumentId, includeSourceGenerated: true).ConfigureAwait(false), HighlightSpans);
 
    public static SerializableDocumentHighlights Dehydrate(DocumentHighlights highlights)
        => new(highlights.Document.Id, highlights.HighlightSpans);
}