I am using CSharpSyntaxRewriter to traverse the syntax tree and SyntaxFactory to replace some of the nodes, for the purpose of my own C#-like DSL.

When I create a new node, e.g. a MemberAccessExpression, I would like to assign its Parent to node.Parent, but I have no idea how to do it. The Parent property is only a getter, so I assume I need to place the node in the syntax tree somehow.

Calling ReplaceNode on the parent of the input node has no effect. I think the returned node is irrelevant for my case, since I just need to achieve that newNode.Parent == node.Parent. This is important in a few steps later inside of VisitMemberAccessExpression. Any ideas or suggestions please?

public override SyntaxNode? VisitIdentifierName(IdentifierNameSyntax node)
{
  if (node.Identifier.Text.StartsWith("@"))
  {
    var cleanName = node.Identifier.Text[1..];
    var newNode = MemberAccessExpression(
      SyntaxKind.SimpleMemberAccessExpression,
      IdentifierName("entity"),
      IdentifierName(cleanName))
    node.Parent.ReplaceNode(node, newNode); //no success, newNode.Parent still null
    //before stepping in, I need newNode.Parent == node.Parent
    return base.VisitMemberAccessExpression(newNode);
}