' 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.

Imports System.Composition
Imports System.Threading
Imports Microsoft.CodeAnalysis.Highlighting
Imports Microsoft.CodeAnalysis.Host.Mef
Imports Microsoft.CodeAnalysis.Text
Imports Microsoft.CodeAnalysis.VisualBasic.Syntax

Namespace Microsoft.CodeAnalysis.VisualBasic.KeywordHighlighting
    <ExportHighlighter(LanguageNames.VisualBasic), [Shared]>
    Friend Class XmlCommentHighlighter
        Inherits AbstractKeywordHighlighter(Of XmlCommentSyntax)

        <ImportingConstructor>
        <Obsolete(MefConstruction.ImportingConstructorMessage, True)>
        Public Sub New()
        End Sub

        Protected Overloads Overrides Sub addHighlights(xmlComment As XmlCommentSyntax, highlights As List(Of TextSpan), cancellationToken As CancellationToken)
            With xmlComment
                If Not .ContainsDiagnostics AndAlso
                   Not .HasAncestor(Of DocumentationCommentTriviaSyntax)() Then
                    highlights.Add(.LessThanExclamationMinusMinusToken.Span)
                    highlights.Add(.MinusMinusGreaterThanToken.Span)
                End If
            End With
        End Sub
    End Class
End Namespace
