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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.Collections.Immutable
Imports System.Threading
Imports Microsoft.CodeAnalysis.Completion.Providers
Imports Microsoft.CodeAnalysis.VisualBasic.Extensions.ContextQuery
Imports Microsoft.CodeAnalysis.VisualBasic.Syntax
Namespace Microsoft.CodeAnalysis.VisualBasic.Completion.KeywordRecommenders.Queries
''' <summary>
''' Recommends the While keyword after a Skip/Take query
''' </summary>
Friend Class WhileKeywordRecommender
Inherits AbstractKeywordRecommender
Private Shared ReadOnly s_keywords As ImmutableArray(Of RecommendedKeyword) =
ImmutableArray.Create(New RecommendedKeyword("While", VBFeaturesResources.Specifies_a_condition_for_Skip_and_Take_operations_Elements_will_be_bypassed_or_included_as_long_as_the_condition_is_true))
Protected Overrides Function RecommendKeywords(context As VisualBasicSyntaxContext, cancellationToken As CancellationToken) As ImmutableArray(Of RecommendedKeyword)
Dim targetToken = context.TargetToken
' We may get two different types, depending on whether the user has already typed the While or not.
If targetToken.IsChildToken(Of PartitionClauseSyntax)(Function(partitionQuery) partitionQuery.SkipOrTakeKeyword) OrElse
targetToken.IsChildToken(Of PartitionWhileClauseSyntax)(Function(partitionWhileQuery) partitionWhileQuery.SkipOrTakeKeyword) Then
Return s_keywords
End If
Return ImmutableArray(Of RecommendedKeyword).Empty
End Function
End Class
End Namespace
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