ArcanistDiffVectorNode.php
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ArcanistDiffVectorNode.php
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	<?php

	final class ArcanistDiffVectorNode
	extends Phobject {

	private $vector;
	private $children = array();
	private $parentNode;
	private $displayNode;
	private $displayVector;
	private $displayDepth;
	private $valueNode;
	private $attributes = array();

	public function setVector(array $vector) {
	$this->vector = $vector;
	return $this;
	}

	public function getVector() {
	return $this->vector;
	}

	public function getChildren() {
	return $this->children;
	}

	public function setParentNode(ArcanistDiffVectorNode $parent) {
	$this->parentNode = $parent;
	return $this;
	}

	public function getParentNode() {
	return $this->parentNode;
	}

	public function addChild(array $vector, $length, $idx) {
	$is_node = ($idx === ($length - 1));
	$element = $vector[$idx];

	if (!isset($this->children[$element])) {
	$this->children[$element] = id(new self())
	->setParentNode($this)
	->setVector(array_slice($vector, 0, $idx + 1));
	}

	$child = $this->children[$element];

	if ($is_node) {
	$child->setValueNode($child);
	return;
	}

	$child->addChild($vector, $length, $idx + 1);
	}

	public function getDisplayVector() {
	return $this->displayVector;
	}

	public function appendDisplayElement($element) {
	if ($this->displayVector === null) {
	$this->displayVector = array();
	}

	$this->displayVector[] = $element;

	return $this;
	}

	public function setDisplayNode(ArcanistDiffVectorNode $display_node) {
	$this->displayNode = $display_node;
	return $this;
	}

	public function getDisplayNode() {
	return $this->displayNode;
	}

	public function setDisplayDepth($display_depth) {
	$this->displayDepth = $display_depth;
	return $this;
	}

	public function getDisplayDepth() {
	return $this->displayDepth;
	}

	public function setValueNode($value_node) {
	$this->valueNode = $value_node;
	return $this;
	}

	public function getValueNode() {
	return $this->valueNode;
	}

	public function setAncestralAttribute($key, $value) {
	$this->attributes[$key] = $value;

	$parent = $this->getParentNode();
	if ($parent) {
	$parent->setAncestralAttribute($key, $value);
	}

	return $this;
	}

	public function getAttribute($key, $default = null) {
	return idx($this->attributes, $key, $default);
	}

	}

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