ArcanistSymbolRef.php
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ArcanistSymbolRef.php
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	<?php

	abstract class ArcanistSymbolRef
	extends ArcanistRef {

	private $symbol;
	private $cacheKey;

	const HARDPOINT_OBJECT = 'ref.symbol.object';

	protected function newHardpoints() {
	return array(
	$this->newHardpoint(self::HARDPOINT_OBJECT),
	);
	}

	final public function setSymbol($symbol) {
	$symbol = $this->resolveSymbol($symbol);

	$this->symbol = $symbol;
	return $this;
	}

	final public function getSymbol() {
	return $this->symbol;
	}

	final public function getSymbolEngineCacheKey() {
	if ($this->cacheKey === null) {
	$parts = array();
	$parts[] = sprintf('class(%s)', get_class($this));

	foreach ($this->newCacheKeyParts() as $part) {
	$parts[] = $part;
	}

	$parts[] = $this->getSymbol();

	$this->cacheKey = implode('.', $parts);
	}

	return $this->cacheKey;
	}

	protected function newCacheKeyParts() {
	return array();
	}

	final public function attachObject(ArcanistRef $object) {
	return $this->attachHardpoint(self::HARDPOINT_OBJECT, $object);
	}

	final public function getObject() {
	return $this->getHardpoint(self::HARDPOINT_OBJECT);
	}

	protected function resolveSymbol($symbol) {
	return $symbol;
	}

	}