' 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.Utilities.IntrinsicOperators
 
Namespace Microsoft.CodeAnalysis.VisualBasic.Completion.KeywordRecommenders.Expressions
    ''' <summary>
    ''' Recommends the "If" keyword when used for the null coalescing or ternary operator
    ''' </summary>
    Friend Class IfKeywordRecommender
        Inherits AbstractKeywordRecommender
 
        Private Shared ReadOnly s_keywords As ImmutableArray(Of RecommendedKeyword) =
            ImmutableArray.Create(
                    CreateRecommendedKeywordForIntrinsicOperator(SyntaxKind.IfKeyword,
                                                                 $"{String.Format(VBFeaturesResources._0_function, "If")} (+1 {FeaturesResources.overload})",
                                                                 Glyph.MethodPublic,
                                                                 New TernaryConditionalExpressionDocumentation()))
 
        Protected Overrides Function RecommendKeywords(context As VisualBasicSyntaxContext, cancellationToken As CancellationToken) As ImmutableArray(Of RecommendedKeyword)
            Return If(context.IsAnyExpressionContext, s_keywords, ImmutableArray(Of RecommendedKeyword).Empty)
        End Function
    End Class
End Namespace