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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.Expressions
''' <summary>
''' Recommends the "MyClass" keyword.
''' </summary>
Friend Class MyClassKeywordRecommender
Inherits AbstractKeywordRecommender
Private Shared ReadOnly s_keywords As ImmutableArray(Of RecommendedKeyword) =
ImmutableArray.Create(New RecommendedKeyword(SyntaxFacts.GetText(SyntaxKind.MyClassKeyword), VBFeaturesResources.Provides_a_way_to_refer_to_the_class_instance_members_as_originally_implemented_ignoring_any_derived_class_overrides))
Protected Overrides Function RecommendKeywords(context As VisualBasicSyntaxContext, cancellationToken As CancellationToken) As ImmutableArray(Of RecommendedKeyword)
Dim targetToken = context.TargetToken
If (context.IsAnyExpressionContext OrElse context.IsStatementContext OrElse context.IsNameOfContext) AndAlso
targetToken.GetInnermostDeclarationContext().IsKind(SyntaxKind.ClassBlock, SyntaxKind.StructureBlock) Then
' This isn't valid in shared methods
Dim methodBlock = targetToken.GetAncestor(Of MethodBlockBaseSyntax)()
If methodBlock IsNot Nothing AndAlso methodBlock.BlockStatement.Modifiers.Any(Function(modifier) modifier.Kind = SyntaxKind.SharedKeyword) Then
Return ImmutableArray(Of RecommendedKeyword).Empty
End If
Return s_keywords
End If
If context.IsAccessibleEventContext(startAtEnclosingBaseType:=False) Then
Return s_keywords
End If
Return ImmutableArray(Of RecommendedKeyword).Empty
End Function
End Class
End Namespace
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