public static async Task <Document> RefactorAsync(
Document document,
MemberDeclarationSyntax member,
CancellationToken cancellationToken = default)
{
MemberDeclarationSyntax newMember = member;
SyntaxToken identifier = GetIdentifier(member);
if (identifier != default)
{
SemanticModel semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
string newName = NameGenerator.Default.EnsureUniqueName(identifier.ValueText, semanticModel, member.SpanStart);
ISymbol symbol = semanticModel.GetDeclaredSymbol(member, cancellationToken);
ImmutableArray <SyntaxNode> references = await SyntaxFinder.FindReferencesAsync(symbol, document.Solution(), documents : ImmutableHashSet.Create(document), cancellationToken : cancellationToken).ConfigureAwait(false);
SyntaxToken newIdentifier = SyntaxFactory.Identifier(newName);
newMember = member.ReplaceNodes(
references.Where(n => member.Contains(n)),
(n, _) =>
{
if (n is IdentifierNameSyntax identifierName)
{
return(identifierName.WithIdentifier(newIdentifier.WithTriviaFrom(identifierName.Identifier)));
}
else
{
Debug.Fail(n.Kind().ToString());
return(n);
}
});
newMember = SetIdentifier(newMember, newIdentifier.WithRenameAnnotation());
}
else
{
newMember = newMember.WithNavigationAnnotation();
}
MemberDeclarationListInfo memberList = SyntaxInfo.MemberDeclarationListInfo(member.Parent);
int index = memberList.IndexOf(member);
if (index == 0)
{
SyntaxToken?openBrace = memberList.OpenBraceToken;
if (openBrace != null &&
openBrace.Value.GetFullSpanEndLine() == member.GetFullSpanStartLine())
{
newMember = newMember.WithLeadingTrivia(member.GetLeadingTrivia().Insert(0, NewLine()));
}
}
return(await document.ReplaceMembersAsync(memberList, memberList.Members.Insert(index + 1, newMember), cancellationToken).ConfigureAwait(false));
}
