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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.
Imports System.Composition
Imports System.Threading
Imports Microsoft.CodeAnalysis.Host.Mef
Imports Microsoft.CodeAnalysis.SignatureHelp
Imports Microsoft.CodeAnalysis.VisualBasic.Syntax
Imports Microsoft.CodeAnalysis.VisualBasic.Utilities.IntrinsicOperators
Namespace Microsoft.CodeAnalysis.VisualBasic.SignatureHelp
<ExportSignatureHelpProvider(NameOf(NameOfExpressionSignatureHelpProvider), LanguageNames.VisualBasic), [Shared]>
Friend Class NameOfExpressionSignatureHelpProvider
Inherits AbstractIntrinsicOperatorSignatureHelpProvider(Of NameOfExpressionSyntax)
<ImportingConstructor>
<Obsolete(MefConstruction.ImportingConstructorMessage, True)>
Public Sub New()
End Sub
Public Overrides Function IsRetriggerCharacter(ch As Char) As Boolean
Return ch = ")"c
End Function
Public Overrides Function IsTriggerCharacter(ch As Char) As Boolean
Return ch = "("c
End Function
Protected Overrides Function GetIntrinsicOperatorDocumentationAsync(node As NameOfExpressionSyntax, document As Document, cancellationToken As CancellationToken) As ValueTask(Of IEnumerable(Of AbstractIntrinsicOperatorDocumentation))
Return New ValueTask(Of IEnumerable(Of AbstractIntrinsicOperatorDocumentation))({New NameOfExpressionDocumentation()})
End Function
Protected Overrides Function IsArgumentListToken(node As NameOfExpressionSyntax, token As SyntaxToken) As Boolean
Return _
node.NameOfKeyword <> token AndAlso
node.CloseParenToken <> token
End Function
Protected Overrides Function IsTriggerToken(token As SyntaxToken) As Boolean
Return token.IsChildToken(Of NameOfExpressionSyntax)(Function(noe) noe.OpenParenToken)
End Function
End Class
End Namespace
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