update_adj_list {autoharp}

Update adjacency list.

Description

Updates the adjacency list for an R expression parse tree.

Usage

update_adj_list(
  update_type = c("new_node", "add_child"),
  node_id,
  node_name,
  child_node,
  env_ni
)

Arguments

update_type

This should be either "new_node" or "add_child". If it is a new node, an empty list component is added. If it is add child, then child_node should be provided too.

node_id

An integer.

node_name

The name of the new node to be added. This must be provided if the update_type is "new_node".

child_node

An integer.

env_ni

An environment object, possibly containing an adjacency list that will later be used to construct a TreeHarp object.

Details

This is for internal use. It may be removed from user-view soon!

Value

An invisible TRUE is returned.