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nikicnikic
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Implement WeakMap
1 parent 2f8b766 commit 5854352

8 files changed

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-25
lines changed

‎Zend/tests/weakrefs/weakmap_001.phpt

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--TEST--
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Basic WeakMap behavior (as a map)
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--FILE--
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<?php
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$map = new WeakMap;
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var_dump(count($map));
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$obj = new stdClass;
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$obj->value = 1;
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$obj2 = new stdClass;
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$obj2->value = 2;
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$map[$obj] = $obj2;
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var_dump(count($map));
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var_dump($map);
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var_dump(isset($map[$obj]));
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var_dump(!empty($map[$obj]));
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var_dump($map[$obj]);
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$map[$obj] = 42;
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var_dump($map);
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var_dump(isset($map[$obj]));
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var_dump(!empty($map[$obj]));
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var_dump($map[$obj]);
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$map[$obj] = false;
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var_dump($map);
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var_dump(isset($map[$obj]));
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var_dump(!empty($map[$obj]));
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var_dump($map[$obj]);
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$map[$obj] = null;
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var_dump($map);
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var_dump(isset($map[$obj]));
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var_dump(!empty($map[$obj]));
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var_dump($map[$obj]);
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unset($map[$obj]);
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var_dump($map);
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var_dump(isset($map[$obj]));
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var_dump(!empty($map[$obj]));
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try {
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var_dump($map[$obj]);
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} catch (Error $e) {
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echo $e->getMessage(), "\n";
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}
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echo "\nIndirect modification:\n";
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$map[$obj] = [];
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$map[$obj][] = 42;
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$map[$obj2] = 41;
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$map[$obj2]++;
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var_dump($map);
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echo "\nMethods:\n";
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var_dump($map->offsetSet($obj2, 43));
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var_dump($map->offsetGet($obj2));
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var_dump($map->offsetExists($obj2));
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var_dump($map->count());
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var_dump($map->offsetUnset($obj2));
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var_dump($map->count());
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?>
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--EXPECT--
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int(0)
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int(1)
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object(WeakMap)#1 (1) {
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[0]=>
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array(2) {
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["key"]=>
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object(stdClass)#2 (1) {
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["value"]=>
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int(1)
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}
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["value"]=>
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object(stdClass)#3 (1) {
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["value"]=>
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int(2)
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}
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}
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}
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bool(true)
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bool(true)
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object(stdClass)#3 (1) {
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["value"]=>
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int(2)
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}
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object(WeakMap)#1 (1) {
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[0]=>
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array(2) {
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["key"]=>
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object(stdClass)#2 (1) {
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["value"]=>
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int(1)
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}
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["value"]=>
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int(42)
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}
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}
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bool(true)
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bool(true)
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int(42)
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object(WeakMap)#1 (1) {
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[0]=>
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array(2) {
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["key"]=>
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object(stdClass)#2 (1) {
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["value"]=>
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int(1)
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}
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["value"]=>
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bool(false)
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}
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}
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bool(true)
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bool(false)
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bool(false)
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object(WeakMap)#1 (1) {
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[0]=>
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array(2) {
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["key"]=>
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object(stdClass)#2 (1) {
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["value"]=>
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int(1)
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}
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["value"]=>
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NULL
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}
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}
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bool(false)
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bool(false)
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NULL
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object(WeakMap)#1 (0) {
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}
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bool(false)
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bool(false)
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Object stdClass#2 not contained in WeakMap
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Indirect modification:
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object(WeakMap)#1 (2) {
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[0]=>
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array(2) {
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["key"]=>
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object(stdClass)#2 (1) {
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["value"]=>
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int(1)
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}
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["value"]=>
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array(1) {
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[0]=>
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int(42)
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}
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}
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[1]=>
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array(2) {
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["key"]=>
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object(stdClass)#3 (1) {
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["value"]=>
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int(2)
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}
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["value"]=>
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int(42)
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}
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}
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Methods:
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NULL
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int(43)
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bool(true)
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int(2)
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NULL
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int(1)

‎Zend/tests/weakrefs/weakmap_002.phpt

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--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 $e->getMessage(), "\n";
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}
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try {
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$map->prop = 1;
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} catch (Error $e) {
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echo $e->getMessage(), "\n";
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}
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try {
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var_dump($map->prop);
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} catch (Error $e) {
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echo $e->getMessage(), "\n";
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}
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try {
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$r =& $map->prop;
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} catch (Error $e) {
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echo $e->getMessage(), "\n";
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}
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try {
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isset($map->prop);
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} catch (Error $e) {
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echo $e->getMessage(), "\n";
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}
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try {
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unset($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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try {
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clone $map;
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} catch (Error $e) {
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echo $e->getMessage(), "\n";
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}
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?>
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--EXPECT--
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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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WeakMap objects do not support properties
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WeakMap objects do not support properties
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WeakMap objects do not support property references
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WeakMap objects do not support properties
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WeakMap objects do not support properties
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Serialization of 'WeakMap' is not allowed
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Unserialization of 'WeakMap' is not allowed
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Trying to clone an uncloneable object of class WeakMap

‎Zend/tests/weakrefs/weakmap_003.phpt

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1+
--TEST--
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The weak part of the WeakMap
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--FILE--
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<?php
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$map = new WeakMap;
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// This is doing to be inserted into the map and immediately removed again
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$map[new stdClass] = 1;
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var_dump($map);
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$obj = new stdClass;
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$map[$obj] = 2;
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var_dump($map);
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unset($obj);
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var_dump($map);
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echo "\nDestructor in WeakMap value:\n";
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$obj = new stdClass;
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$map[$obj] = new class {
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public function __destruct() {
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echo "Dtor!\n";
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}
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};
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echo "Before unset:\n";
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unset($obj);
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echo "After unset:\n";
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var_dump($map);
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echo "\nDestroying map with live object:\n";
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$obj = new stdClass;
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$map[$obj] = 3;
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unset($map);
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var_dump($obj);
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echo "\nObject freed by GC:\n";
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$map = new WeakMap;
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$obj = new stdClass;
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$obj->obj = $obj;
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$map[$obj] = 4;
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unset($obj);
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var_dump($map);
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gc_collect_cycles();
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var_dump($map);
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echo "\nStoring map in itself:\n";
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$map = new WeakMap;
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$map[$map] = $map;
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var_dump($map);
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unset($map);
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?>
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--EXPECT--
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object(WeakMap)#1 (0) {
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}
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object(WeakMap)#1 (1) {
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[0]=>
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array(2) {
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["key"]=>
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object(stdClass)#2 (0) {
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}
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["value"]=>
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int(2)
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}
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}
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object(WeakMap)#1 (0) {
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}
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Destructor in WeakMap value:
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Before unset:
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Dtor!
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After unset:
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object(WeakMap)#1 (0) {
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}
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Destroying map with live object:
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object(stdClass)#2 (0) {
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}
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Object freed by GC:
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object(WeakMap)#1 (1) {
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[0]=>
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array(2) {
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["key"]=>
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object(stdClass)#3 (1) {
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["obj"]=>
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*RECURSION*
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}
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["value"]=>
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int(4)
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}
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}
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object(WeakMap)#1 (0) {
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}
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Storing map in itself:
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object(WeakMap)#3 (1) {
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[0]=>
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array(2) {
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["key"]=>
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*RECURSION*
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["value"]=>
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*RECURSION*
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}
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}

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