/// <summary>
/// Visit Function node in DFS manner.
/// </summary>
/// <param name="node">Function node that will be visited.</param>
public override void Visit(RawFunctionNode node)
{
var scope = _scope.GetScopeByFunction(node);
var inScopePlace = scope.HasVisibleInvocation(node);
if (!IsCacheable(node))
{
base.Visit(node);
}
else if (inScopePlace == InvocationVisibilityStatus.FirstCall)
{
Visit(new CallFunctionAndStoreValueNode(node));
}
else
{
Visit(new CachedFunctionNode(node));
}
}