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MemoryManager: Look inside Closure objects to resolve dependencies

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the lack of closure analysis allowed several memory leaks to be unable to be debugged using memory dumps.
This commit is contained in:
Dylan K. Taylor 2020-09-26 15:11:47 +01:00
parent 7b02cc3efd
commit b8e1bdbed4
1 changed files with 24 additions and 11 deletions
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35
src/MemoryManager.php
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@ -399,24 +399,37 @@ class MemoryManager{
}
$objects[$hash] = true;
$reflection = new \ReflectionObject($object);
$info = [
"information" => "$hash@$className",
"properties" => []
];
foreach($reflection->getProperties() as $property){
if($property->isStatic()){
continue;
if($object instanceof \Closure){
$info["definition"] = Utils::getNiceClosureName($object);
$info["referencedVars"] = [];
$reflect = new \ReflectionFunction($object);
if(($closureThis = $reflect->getClosureThis()) !== null){
$info["this"] = self::continueDump($closureThis, $objects, $refCounts, 0, $maxNesting, $maxStringSize);
}
if(!$property->isPublic()){
$property->setAccessible(true);
//TODO: scan non-closures for statics as well
foreach($reflect->getStaticVariables() as $name => $variable){
$info["referencedVars"][$name] = self::continueDump($variable, $objects, $refCounts, 0, $maxNesting, $maxStringSize);
}
}else{
$reflection = new \ReflectionObject($object);
$info["properties"][$property->getName()] = self::continueDump($property->getValue($object), $objects, $refCounts, 0, $maxNesting, $maxStringSize);
$info["properties"] = [];
foreach($reflection->getProperties() as $property){
if($property->isStatic()){
continue;
}
if(!$property->isPublic()){
$property->setAccessible(true);
}
$info["properties"][$property->getName()] = self::continueDump($property->getValue($object), $objects, $refCounts, 0, $maxNesting, $maxStringSize);
}
}
fwrite($obData, json_encode($info, JSON_UNESCAPED_SLASHES) . "\n");