tests/bugs/oxford/PR61768.java


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56

/* According to the documentation, the scope rules for
intertype method declarations are interpreted
from the originating aspect. The only exceptions
(I thought) are the use of "this" and "super" which refer to
the target type.

According to that interpretation, the program below is type correct, but
ajc generates two error messages, shown in comments
at the relevant lines. Note that it's ok to access private static
fields of the aspect, but not to use private classes of the aspect.

If this is a feature and not a bug, what are the
precise scope rules for intertype method declarations?
*/

aspect Aspect { 

 private static int y = 5;

 private class A { int x = 3; }
 
 private static class A2 {}

 private static void B.happy() {
System.out.println(y);          // happy accessing private field y
 }

 private static void B.foo(A z) { 
System.out.println(z.x); 
 }
 
 private static void B.foo2(A2 z) {
     System.out.println(z);
 }

 public void B.bar() {
     B.foo(new A());        // CE L37 : no enclosing instance
 }
 
 public void B.bar2() {
     B.foo2(new A2());
 }

}

class B {
}

class IT { 


 public static void main(String[] args) { 
new B().bar();
 } 

}

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130

<?php
/**
 * @copyright Copyright (c) 2016, ownCloud, Inc.
 *
 * @author Andrew Brown <andrew@casabrown.com>
 * @author Bart Visscher <bartv@thisnet.nl>
 * @author Jörn Friedrich Dreyer <jfd@butonic.de>
 * @author Morris Jobke <hey@morrisjobke.de>
 * @author Robin Appelman <robin@icewind.nl>
 *
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License, version 3,
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 *
 */

namespace OC;
use OCP\Search\PagedProvider;
use OCP\Search\Provider;
use OCP\ISearch;

/**
 * Provide an interface to all search providers
 */
class Search implements ISearch {

	private $providers = array();
	private $registeredProviders = array();

	/**
	 * Search all providers for $query
	 * @param string $query
	 * @param string[] $inApps optionally limit results to the given apps
	 * @return array An array of OC\Search\Result's
	 */
	public function search($query, array $inApps = array()) {
		// old apps might assume they get all results, so we set size 0
		return $this->searchPaged($query, $inApps, 1, 0);
	}

	/**
	 * Search all providers for $query
	 * @param string $query
	 * @param string[] $inApps optionally limit results to the given apps
	 * @param int $page pages start at page 1
	 * @param int $size, 0 = all
	 * @return array An array of OC\Search\Result's
	 */
	public function searchPaged($query, array $inApps = array(), $page = 1, $size = 30) {
		$this->initProviders();
		$results = array();
		foreach($this->providers as $provider) {
			/** @var $provider Provider */
			if ( ! $provider->providesResultsFor($inApps) ) {
				continue;
			}
			if ($provider instanceof PagedProvider) {
				$results = array_merge($results, $provider->searchPaged($query, $page, $size));
			} else if ($provider instanceof Provider) {
				$providerResults = $provider->search($query);
				if ($size > 0) {
					$slicedResults = array_slice($providerResults, ($page - 1) * $size, $size);
					$results = array_merge($results, $slicedResults);
				} else {
					$results = array_merge($results, $providerResults);
				}
			} else {
				\OC::$server->getLogger()->warning('Ignoring Unknown search provider', array('provider' => $provider));
			}
		}
		return $results;
	}

	/**
	 * Remove all registered search providers
	 */
	public function clearProviders() {
		$this->providers = array();
		$this->registeredProviders = array();
	}

	/**
	 * Remove one existing search provider
	 * @param string $provider class name of a OC\Search\Provider
	 */
	public function removeProvider($provider) {
		$this->registeredProviders = array_filter(
			$this->registeredProviders,
			function ($element) use ($provider) {
				return ($element['class'] != $provider);
			}
		);
		// force regeneration of providers on next search
		$this->providers = array();
	}

	/**
	 * Register a new search provider to search with
	 * @param string $class class name of a OC\Search\Provider
	 * @param array $options optional
	 */
	public function registerProvider($class, array $options = array()) {
		$this->registeredProviders[] = array('class' => $class, 'options' => $options);
	}

	/**
	 * Create instances of all the registered search providers
	 */
	private function initProviders() {
		if( ! empty($this->providers) ) {
			return;
		}
		foreach($this->registeredProviders as $provider) {
			$class = $provider['class'];
			$options = $provider['options'];
			$this->providers[] = new $class($options);
		}
	}

}