' 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.Composition
Imports System.Diagnostics.CodeAnalysis
Imports Microsoft.CodeAnalysis.CodeFixes
Imports Microsoft.CodeAnalysis.Formatting.Rules
Imports Microsoft.CodeAnalysis.Operations
Imports Microsoft.CodeAnalysis.UseConditionalExpression
Imports Microsoft.CodeAnalysis.VisualBasic.Syntax

#If CODE_STYLE Then
Imports Microsoft.CodeAnalysis.Formatting
Imports Microsoft.CodeAnalysis.VisualBasic.Formatting
#End If

Namespace Microsoft.CodeAnalysis.VisualBasic.UseConditionalExpression
    <ExportCodeFixProvider(LanguageNames.VisualBasic), [Shared]>
    Friend Class VisualBasicUseConditionalExpressionForReturnCodeFixProvider
        Inherits AbstractUseConditionalExpressionForReturnCodeFixProvider(Of
            StatementSyntax, MultiLineIfBlockSyntax, ExpressionSyntax, TernaryConditionalExpressionSyntax)

        <ImportingConstructor>
        <SuppressMessage("RoslynDiagnosticsReliability", "RS0033:Importing constructor should be [Obsolete]", Justification:="Used in test code: https://github.com/dotnet/roslyn/issues/42814")>
        Public Sub New()
        End Sub

        Protected Overrides Function ConvertToExpression(throwOperation As IThrowOperation) As ExpressionSyntax
            ' VB does not have throw expressions
            Throw ExceptionUtilities.Unreachable
        End Function

        Protected Overrides Function GetMultiLineFormattingRule() As AbstractFormattingRule
            Return MultiLineConditionalExpressionFormattingRule.Instance
        End Function

        Protected Overrides Function WrapWithBlockIfAppropriate(ifStatement As MultiLineIfBlockSyntax, statement As StatementSyntax) As StatementSyntax
            Return statement
        End Function

#If CODE_STYLE Then
        Protected Overrides Function GetSyntaxFormattingService() As ISyntaxFormattingService
            Return VisualBasicSyntaxFormattingService.Instance
        End Function
#End If
    End Class
End Namespace
