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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.
using System.Collections.Immutable;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.Internal.Log;
using Microsoft.CodeAnalysis.PooledObjects;
using Microsoft.CodeAnalysis.Remote;
using Roslyn.Utilities;
namespace Microsoft.CodeAnalysis.FindSymbols;
internal static partial class DependentTypeFinder
{
public static async Task<ImmutableArray<INamedTypeSymbol>> FindTypesAsync(
INamedTypeSymbol type,
Solution solution,
IImmutableSet<Project>? projects,
bool transitive,
DependentTypesKind kind,
CancellationToken cancellationToken)
{
if (SerializableSymbolAndProjectId.TryCreate(type, solution, cancellationToken, out var serializedType))
{
var client = await RemoteHostClient.TryGetClientAsync(solution.Services, cancellationToken).ConfigureAwait(false);
if (client != null)
{
var projectIds = projects?.Where(p => RemoteSupportedLanguages.IsSupported(p.Language)).SelectAsArray(p => p.Id) ?? default;
var result = await client.TryInvokeAsync<IRemoteDependentTypeFinderService, ImmutableArray<SerializableSymbolAndProjectId>>(
solution,
(service, solutionInfo, cancellationToken) => service.FindTypesAsync(solutionInfo, serializedType, projectIds, transitive, kind, cancellationToken),
cancellationToken).ConfigureAwait(false);
if (!result.HasValue)
{
return [];
}
return await RehydrateAsync(solution, result.Value, cancellationToken).ConfigureAwait(false);
}
// TODO: Do not fall back to in-proc https://github.com/dotnet/roslyn/issues/47557
}
return await FindTypesInCurrentProcessAsync(type, solution, projects, transitive, kind, cancellationToken).ConfigureAwait(false);
}
public static async Task<ImmutableArray<INamedTypeSymbol>> FindTypesInCurrentProcessAsync(
INamedTypeSymbol type,
Solution solution,
IImmutableSet<Project>? projects,
bool transitive,
DependentTypesKind kind,
CancellationToken cancellationToken)
{
var functionId = kind switch
{
DependentTypesKind.DerivedClasses => FunctionId.DependentTypeFinder_FindAndCacheDerivedClassesAsync,
DependentTypesKind.DerivedInterfaces => FunctionId.DependentTypeFinder_FindAndCacheDerivedInterfacesAsync,
DependentTypesKind.ImplementingTypes => FunctionId.DependentTypeFinder_FindAndCacheImplementingTypesAsync,
_ => throw ExceptionUtilities.UnexpectedValue(kind)
};
using (Logger.LogBlock(functionId, cancellationToken))
{
var task = kind switch
{
DependentTypesKind.DerivedClasses => FindDerivedClassesInCurrentProcessAsync(type, solution, projects, transitive, cancellationToken),
DependentTypesKind.DerivedInterfaces => FindDerivedInterfacesInCurrentProcessAsync(type, solution, projects, transitive, cancellationToken),
DependentTypesKind.ImplementingTypes => FindImplementingTypesInCurrentProcessAsync(type, solution, projects, transitive, cancellationToken),
_ => throw ExceptionUtilities.UnexpectedValue(kind)
};
return await task.ConfigureAwait(false);
}
}
private static async Task<ImmutableArray<INamedTypeSymbol>> RehydrateAsync(Solution solution, ImmutableArray<SerializableSymbolAndProjectId> values, CancellationToken cancellationToken)
{
using var _ = ArrayBuilder<INamedTypeSymbol>.GetInstance(out var builder);
foreach (var item in values)
{
var rehydrated = await item.TryRehydrateAsync(solution, cancellationToken).ConfigureAwait(false);
if (rehydrated is INamedTypeSymbol namedType)
builder.AddIfNotNull(namedType);
}
return builder.ToImmutableAndClear();
}
}
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