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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
Namespace Microsoft.CodeAnalysis.VisualBasic.Completion.KeywordRecommenders.Declarations
Friend Class AsyncKeywordRecommender
Inherits AbstractKeywordRecommender
Private Shared ReadOnly s_keywords As ImmutableArray(Of RecommendedKeyword) =
ImmutableArray.Create(New RecommendedKeyword("Async", VBFeaturesResources.Indicates_an_asynchronous_method_that_can_use_the_Await_operator))
Protected Overrides Function RecommendKeywords(context As VisualBasicSyntaxContext, cancellationToken As CancellationToken) As ImmutableArray(Of RecommendedKeyword)
' Function/Sub declaration
If context.IsTypeMemberDeclarationKeywordContext OrElse context.IsInterfaceMemberDeclarationKeywordContext Then
If context.ModifierCollectionFacts.AsyncKeyword.Kind = SyntaxKind.None AndAlso
context.ModifierCollectionFacts.IteratorKeyword.Kind = SyntaxKind.None AndAlso
context.ModifierCollectionFacts.OverridableSharedOrPartialKeyword.Kind <> SyntaxKind.PartialKeyword AndAlso
context.ModifierCollectionFacts.MutabilityOrWithEventsKeyword.Kind = SyntaxKind.None Then
Return s_keywords
End If
End If
Return ImmutableArray(Of RecommendedKeyword).Empty
End Function
End Class
End Namespace
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