Viewing file:  Onceable.php (2.49 KB) -rw-r--r--
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<?php
namespace Illuminate\Support;
use Closure;
use Illuminate\Contracts\Support\HasOnceHash;
use Laravel\SerializableClosure\Support\ReflectionClosure;
class Onceable
{
/**
* Create a new onceable instance.
*
* @param string $hash
* @param object|null $object
* @param callable $callable
*/
public function __construct(
public string $hash,
public ?object $object,
public $callable,
) {
//
}
/**
* Tries to create a new onceable instance from the given trace.
*
* @param array<int, array<string, mixed>> $trace
* @return static|null
*/
public static function tryFromTrace(array $trace, callable $callable)
{
if (! is_null($hash = static::hashFromTrace($trace, $callable))) {
$object = static::objectFromTrace($trace);
return new static($hash, $object, $callable);
}
}
/**
* Computes the object of the onceable from the given trace, if any.
*
* @param array<int, array<string, mixed>> $trace
* @return object|null
*/
protected static function objectFromTrace(array $trace)
{
return $trace[1]['object'] ?? null;
}
/**
* Computes the hash of the onceable from the given trace.
*
* @param array<int, array<string, mixed>> $trace
* @return string|null
*/
protected static function hashFromTrace(array $trace, callable $callable)
{
if (str_contains($trace[0]['file'] ?? '', 'eval()\'d code')) {
return null;
}
$uses = array_map(
static function (mixed $argument) {
if ($argument instanceof HasOnceHash) {
return $argument->onceHash();
}
if (is_object($argument)) {
return spl_object_hash($argument);
}
return $argument;
},
$callable instanceof Closure ? (new ReflectionClosure($callable))->getClosureUsedVariables() : [],
);
$class = $callable instanceof Closure ? (new ReflectionClosure($callable))->getClosureCalledClass()?->getName() : null;
$class ??= isset($trace[1]['class']) ? $trace[1]['class'] : null;
return hash('xxh128', sprintf(
'%s@%s%s:%s (%s)',
$trace[0]['file'],
$class ? $class.'@' : '',
$trace[1]['function'],
$trace[0]['line'],
serialize($uses),
));
}
}
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