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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.
#nullable disable
using System;
using System.Collections.Generic;
using System.Composition;
using System.Threading;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using Microsoft.CodeAnalysis.Highlighting;
using Microsoft.CodeAnalysis.Host.Mef;
using Microsoft.CodeAnalysis.Text;
namespace Microsoft.CodeAnalysis.CSharp.KeywordHighlighting.KeywordHighlighters;
[ExportHighlighter(LanguageNames.CSharp), Shared]
internal class TryStatementHighlighter : AbstractKeywordHighlighter<TryStatementSyntax>
{
[ImportingConstructor]
[Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
public TryStatementHighlighter()
{
}
protected override void AddHighlights(
TryStatementSyntax tryStatement, List<TextSpan> highlights, CancellationToken cancellationToken)
{
highlights.Add(tryStatement.TryKeyword.Span);
foreach (var catchDeclaration in tryStatement.Catches)
{
highlights.Add(catchDeclaration.CatchKeyword.Span);
if (catchDeclaration.Filter != null)
{
highlights.Add(catchDeclaration.Filter.WhenKeyword.Span);
}
}
if (tryStatement.Finally != null)
{
highlights.Add(tryStatement.Finally.FinallyKeyword.Span);
}
}
}
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