PhabricatorXHPASTViewTreeController.php
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	<?php

	/*
	* Copyright 2012 Facebook, Inc.
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	final class PhabricatorXHPASTViewTreeController
	extends PhabricatorXHPASTViewPanelController {

	public function processRequest() {
	$storage = $this->getStorageTree();
	$input = $storage->getInput();
	$stdout = $storage->getStdout();

	$tree = XHPASTTree::newFromDataAndResolvedExecFuture(
	$input,
	array(0, $stdout, ''));

	$tree = '<ul>'.$this->buildTree($tree->getRootNode()).'</ul>';
	return $this->buildXHPASTViewPanelResponse($tree);
	}

	protected function buildTree($root) {

	try {
	$name = $root->getTypeName();
	$title = $root->getDescription();
	} catch (Exception $ex) {
	$name = '???';
	$title = '???';
	}

	$tree = array();
	$tree[] =
	'<li>'.
	phutil_render_tag(
	'span',
	array(
	'title' => $title,
	),
	phutil_escape_html($name)).
	'</li>';
	foreach ($root->getChildren() as $child) {
	$tree[] = '<ul>'.$this->buildTree($child).'</ul>';
	}
	return implode("\n", $tree);
	}

	}