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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.CodeActions
Imports Microsoft.CodeAnalysis.CodeCleanup
Imports Microsoft.CodeAnalysis.Editing
Imports Microsoft.CodeAnalysis.Formatting
Imports Microsoft.CodeAnalysis.Options
Imports Microsoft.CodeAnalysis.VisualBasic.Syntax
Namespace Microsoft.CodeAnalysis.VisualBasic.CodeFixes.OverloadBase
Partial Friend Class OverloadBaseCodeFixProvider
Private Class AddKeywordAction
Inherits CodeAction
Private ReadOnly _document As Document
Private ReadOnly _node As SyntaxNode
Private ReadOnly _title As String
Private ReadOnly _modifier As SyntaxKind
Public Overrides ReadOnly Property Title As String
Get
Return _title
End Get
End Property
Public Overrides ReadOnly Property EquivalenceKey As String
Get
Return _title
End Get
End Property
Public Sub New(document As Document, node As SyntaxNode, title As String, modifier As SyntaxKind)
_document = document
_node = node
_title = title
_modifier = modifier
End Sub
Protected Overrides Async Function GetChangedDocumentAsync(cancellationToken As CancellationToken) As Task(Of Document)
Dim root = Await _document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(False)
Dim options = Await _document.GetSyntaxFormattingOptionsAsync(cancellationToken).ConfigureAwait(False)
Dim newNode = Await GetNewNodeAsync(_document, _node, options, cancellationToken).ConfigureAwait(False)
Dim newRoot = root.ReplaceNode(_node, newNode)
Return _document.WithSyntaxRoot(newRoot)
End Function
Private Async Function GetNewNodeAsync(document As Document, node As SyntaxNode, options As SyntaxFormattingOptions, cancellationToken As CancellationToken) As Task(Of SyntaxNode)
Dim newNode As SyntaxNode = Nothing
Dim trivia As SyntaxTriviaList = node.GetLeadingTrivia()
node = node.WithoutLeadingTrivia()
Dim propertyStatement = TryCast(node, PropertyStatementSyntax)
If propertyStatement IsNot Nothing Then
newNode = propertyStatement.AddModifiers(SyntaxFactory.Token(_modifier))
End If
Dim methodStatement = TryCast(node, MethodStatementSyntax)
If methodStatement IsNot Nothing Then
newNode = methodStatement.AddModifiers(SyntaxFactory.Token(_modifier))
End If
'Make sure we preserve any trivia from the original node
newNode = newNode.WithLeadingTrivia(trivia)
'We need to perform a cleanup on the node because AddModifiers doesn't adhere to the VB modifier ordering rules
Dim cleanupService = document.GetLanguageService(Of ICodeCleanerService)
If cleanupService IsNot Nothing AndAlso newNode IsNot Nothing Then
Dim services = document.Project.Solution.Services
newNode = Await cleanupService.CleanupAsync(newNode, ImmutableArray.Create(newNode.Span), options, services, cleanupService.GetDefaultProviders(), cancellationToken).ConfigureAwait(False)
End If
Return newNode.WithAdditionalAnnotations(Formatter.Annotation)
End Function
End Class
End Class
End Namespace
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