ArcanistBlacklistedFunctionXHPASTLinterRule.php
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ArcanistBlacklistedFunctionXHPASTLinterRule.php
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	<?php

	final class ArcanistBlacklistedFunctionXHPASTLinterRule
	extends ArcanistXHPASTLinterRule {

	const ID = 51;

	private $blacklistedFunctions = array();

	public function getLintName() {
	return pht('Use of Blacklisted Function');
	}

	public function getLinterConfigurationOptions() {
	return parent::getLinterConfigurationOptions() + array(
	'xhpast.blacklisted.function' => array(
	'type' => 'optional map<string, string>',
	'help' => pht('Blacklisted functions which should not be used.'),
	),
	);
	}

	public function setLinterConfigurationValue($key, $value) {
	switch ($key) {
	case 'xhpast.blacklisted.function':
	$this->blacklistedFunctions = $value;
	return;

	default:
	return parent::getLinterConfigurationOptions();
	}
	}

	public function process(XHPASTNode $root) {
	$calls = $root->selectDescendantsOfType('n_FUNCTION_CALL');

	foreach ($calls as $call) {
	$node = $call->getChildByIndex(0);
	$name = $node->getConcreteString();

	$reason = idx($this->blacklistedFunctions, $name);

	if ($reason) {
	$this->raiseLintAtNode($node, $reason);
	}
	}
	}

	}