File: src\Workspaces\SharedUtilitiesAndExtensions\Workspace\CSharp\LanguageServices\CSharpSymbolDeclarationService.cs
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Project: src\src\Workspaces\CSharp\Portable\Microsoft.CodeAnalysis.CSharp.Workspaces.csproj (Microsoft.CodeAnalysis.CSharp.Workspaces)
// 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;
using System.Collections.Immutable;
using System.Composition;
using Microsoft.CodeAnalysis.Host.Mef;
using Microsoft.CodeAnalysis.LanguageService;
 
namespace Microsoft.CodeAnalysis.CSharp;
 
[ExportLanguageService(typeof(ISymbolDeclarationService), LanguageNames.CSharp), Shared]
internal class CSharpSymbolDeclarationService : ISymbolDeclarationService
{
    [ImportingConstructor]
    [Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
    public CSharpSymbolDeclarationService()
    {
    }
 
    public ImmutableArray<SyntaxReference> GetDeclarations(ISymbol symbol)
        => symbol != null
            ? symbol.DeclaringSyntaxReferences
            : [];
}