private bool IsValidRowScopedDottedNameNode(DottedNameNode node, TexlBinding binding, OperationCapabilityMetadata metadata, out bool isRowScopedDelegationExempted)
{
Contracts.AssertValue(node);
Contracts.AssertValue(binding);
isRowScopedDelegationExempted = false;
if (node.Left.Kind == NodeKind.FirstName &&
binding.IsDelegationExempted(node.Left as FirstNameNode) &&
binding.IsLambdaScoped(node.Left as FirstNameNode))
{
isRowScopedDelegationExempted = true;
return(true);
}
if (node.Left.Kind == NodeKind.DottedName)
{
return(IsValidRowScopedDottedNameNode(node.Left.AsDottedName(), binding, metadata, out isRowScopedDelegationExempted));
}
if (node.Left.Kind == NodeKind.Call && binding.GetInfo(node.Left as CallNode).Function is AsTypeFunction)
{
return(IsValidCallNode(node.Left as CallNode, binding, metadata));
}
// We only allow dotted or firstname node on LHS for now, with exception of AsType.
return(node.Left.Kind == NodeKind.FirstName);
}