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https://github.com/php/php-src.git
synced 2026-04-22 15:38:49 +02:00
Nikita Popov
653e4ea1c5
While performing resource -> object migrations, we're adding defensive classes that are final, non-serializable and non-clonable (unless they are, of course). This path adds a ZEND_ACC_NO_DYNAMIC_PROPERTIES flag, that also forbids the creation of dynamic properties on these objects. This is a subset of #3931 and targeted at internal usage only (though may be extended to userland at some point in the future). It's already possible to achieve this (what the removed WeakRef/WeakMap code does), but there's some caveats: First, this simple approach is only possible if the class has no declared properties, otherwise it's necessary to special-case those properties. Second, it's easy to make it overly strict, e.g. by forbidding isset($obj->prop) as well. And finally, it requires a lot of boilerplate code for each class. Closes GH-5572.
93 lines
1.7 KiB
PHP
93 lines
1.7 KiB
PHP
--TEST--
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WeakMap error conditions
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--FILE--
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<?php
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$map = new WeakMap;
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try {
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$map[1] = 2;
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} catch (TypeError $e) {
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echo $e->getMessage(), "\n";
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}
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try {
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var_dump($map[1]);
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} catch (TypeError $e) {
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echo $e->getMessage(), "\n";
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}
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try {
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isset($map[1]);
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} catch (TypeError $e) {
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echo $e->getMessage(), "\n";
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}
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try {
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unset($map[1]);
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} catch (TypeError $e) {
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echo $e->getMessage(), "\n";
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}
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try {
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$map[] = 1;
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} catch (Error $e) {
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echo $e->getMessage(), "\n";
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}
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try {
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$map[][1] = 1;
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} catch (Error $e) {
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echo $e->getMessage(), "\n";
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}
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try {
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var_dump($map[new stdClass]);
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} catch (Error $e) {
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echo $e->getMessage(), "\n";
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}
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var_dump($map->prop);
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var_dump(isset($map->prop));
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unset($map->prop);
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try {
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$map->prop = 1;
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} catch (Error $e) {
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echo $e->getMessage(), "\n";
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}
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try {
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$map->prop[] = 1;
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} catch (Error $e) {
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echo $e->getMessage(), "\n";
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}
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try {
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$r =& $map->prop;
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} catch (Error $e) {
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echo $e->getMessage(), "\n";
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}
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try {
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serialize($map);
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} catch (Exception $e) {
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echo $e->getMessage(), "\n";
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}
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try {
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unserialize('C:7:"WeakMap":0:{}');
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} catch (Exception $e) {
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echo $e->getMessage(), "\n";
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}
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?>
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--EXPECTF--
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WeakMap key must be an object
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WeakMap key must be an object
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WeakMap key must be an object
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WeakMap key must be an object
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Cannot append to WeakMap
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Cannot append to WeakMap
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Object stdClass#2 not contained in WeakMap
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Warning: Undefined property: WeakMap::$prop in %s on line %d
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NULL
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bool(false)
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Cannot create dynamic property WeakMap::$prop
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Cannot create dynamic property WeakMap::$prop
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Cannot create dynamic property WeakMap::$prop
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Serialization of 'WeakMap' is not allowed
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Unserialization of 'WeakMap' is not allowed
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