// 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 Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp;
using Microsoft.CodeAnalysis.CSharp.Extensions;
using Microsoft.CodeAnalysis.Host.Mef;
using Microsoft.CodeAnalysis.Shared.Extensions;
using Microsoft.VisualStudio.LanguageServices.Implementation.Venus;
 
namespace Microsoft.VisualStudio.LanguageServices.CSharp.Venus;
 
[ExportLanguageService(typeof(IVenusBraceMatchingService), LanguageNames.CSharp), Shared]
internal sealed class CSharpVenusBraceMatchingService : IVenusBraceMatchingService
{
    [ImportingConstructor]
    [Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
    public CSharpVenusBraceMatchingService()
    {
    }
 
    public bool TryGetCorrespondingOpenBrace(SyntaxToken token, out SyntaxToken openBrace)
    {
        if (token.Kind() == SyntaxKind.CloseBraceToken)
        {
            var tuple = token.GetRequiredParent().GetBraces();
 
            openBrace = tuple.openBrace;
            return openBrace.Kind() == SyntaxKind.OpenBraceToken;
        }
 
        openBrace = default;
        return false;
    }
}