/**
* Adds a child or function to the end of the block. Sets the parent of the child to this node,
* and fixes up the start position of the child to be relative to this node. Sets the length of
* this node to include the new child.
*
* @param kid the child
* @throws IllegalArgumentException if kid is {@code null}
*/
public void addChild(AstNode kid) {
assertNotNull(kid);
int end = kid.getPosition() + kid.getLength();
setLength(end - this.getPosition());
addChildToBack(kid);
kid.setParent(this);
}
/**
* Sets the node start and end positions. Computes the length as ({@code end} - {@code position}).
*/
public void setBounds(int position, int end) {
setPosition(position);
setLength(end - position);
}
