|
' 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 EventBlockHighlighter
Inherits AbstractKeywordHighlighter(Of SyntaxNode)
<ImportingConstructor>
<Obsolete(MefConstruction.ImportingConstructorMessage, True)>
Public Sub New()
End Sub
Protected Overloads Overrides Sub AddHighlights(node As SyntaxNode, highlights As List(Of TextSpan), cancellationToken As CancellationToken)
Dim eventBlock = node.GetAncestor(Of EventBlockSyntax)()
If eventBlock Is Nothing Then
Return
End If
With eventBlock
With .EventStatement
' This span calculation should also capture the Custom keyword
Dim firstKeyword = If(.Modifiers.Count > 0, .Modifiers.First(), .DeclarationKeyword)
highlights.Add(TextSpan.FromBounds(firstKeyword.SpanStart, .DeclarationKeyword.Span.End))
If .ImplementsClause IsNot Nothing Then
highlights.Add(.ImplementsClause.ImplementsKeyword.Span)
End If
End With
highlights.Add(.EndEventStatement.Span)
End With
End Sub
End Class
End Namespace
|