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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.Declarations
''' <summary>
''' Recommends the "Function" and "Sub" keywords in external method declarations.
''' </summary>
Friend Class DelegateSubFunctionKeywordRecommender
Inherits AbstractKeywordRecommender
Private Shared ReadOnly s_keywords As ImmutableArray(Of RecommendedKeyword) = ImmutableArray.Create(
New RecommendedKeyword("Function", VBFeaturesResources.Declares_the_name_parameters_and_code_that_define_a_Function_procedure_that_is_a_procedure_that_returns_a_value_to_the_calling_code),
New RecommendedKeyword("Sub", VBFeaturesResources.Declares_the_name_parameters_and_code_that_define_a_Sub_procedure_that_is_a_procedure_that_does_not_return_a_value_to_the_calling_code))
Protected Overrides Function RecommendKeywords(context As VisualBasicSyntaxContext, cancellationToken As CancellationToken) As ImmutableArray(Of RecommendedKeyword)
If context.FollowsEndOfStatement Then
Return ImmutableArray(Of RecommendedKeyword).Empty
End If
Return If(context.TargetToken.IsChildToken(Of DelegateStatementSyntax)(Function(delegateDeclaration) delegateDeclaration.DelegateKeyword),
s_keywords,
ImmutableArray(Of RecommendedKeyword).Empty)
End Function
End Class
End Namespace
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