private void FixupProdRefNodes()
{
foreach (var node in _astNodeFactory.AllNodes.Where(p => p.AstNodeType == AstNodeType.ProdRef))
{
var prodRefNode = (IProdRefNode)node;
var prodInfo = Productions.FirstOrDefault(p => p.Name == prodRefNode.ProdName);
if (prodInfo == null)
{
throw new SemanticErrorException($"Definition for production {prodRefNode.ProdName} not found.");
}
prodRefNode.Expression = prodInfo.Statement.Expression;
}
}