79 lines
2.1 KiB
PHP
79 lines
2.1 KiB
PHP
<?php
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namespace Illuminate\Support;
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use Closure;
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use Laravel\SerializableClosure\Support\ReflectionClosure;
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class Onceable
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{
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/**
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* Create a new onceable instance.
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*
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* @param string $hash
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* @param object|null $object
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* @param callable $callable
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* @return void
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*/
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public function __construct(
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public string $hash,
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public object|null $object,
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public $callable
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) {
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//
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}
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/**
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* Tries to create a new onceable instance from the given trace.
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*
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* @param array<int, array<string, mixed>> $trace
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* @return static|null
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*/
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public static function tryFromTrace(array $trace, callable $callable)
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{
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if (! is_null($hash = static::hashFromTrace($trace, $callable))) {
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$object = static::objectFromTrace($trace);
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return new static($hash, $object, $callable);
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}
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}
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/**
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* Computes the object of the onceable from the given trace, if any.
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*
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* @param array<int, array<string, mixed>> $trace
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* @return object|null
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*/
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protected static function objectFromTrace(array $trace)
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{
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return $trace[1]['object'] ?? null;
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}
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/**
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* Computes the hash of the onceable from the given trace.
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*
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* @param array<int, array<string, mixed>> $trace
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* @return string|null
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*/
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protected static function hashFromTrace(array $trace, callable $callable)
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{
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if (str_contains($trace[0]['file'] ?? '', 'eval()\'d code')) {
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return null;
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}
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$uses = array_map(
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fn (mixed $argument) => is_object($argument) ? spl_object_hash($argument) : $argument,
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$callable instanceof Closure ? (new ReflectionClosure($callable))->getClosureUsedVariables() : [],
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);
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return md5(sprintf(
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'%s@%s%s:%s (%s)',
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$trace[0]['file'],
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isset($trace[1]['class']) ? ($trace[1]['class'].'@') : '',
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$trace[1]['function'],
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$trace[0]['line'],
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serialize($uses),
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));
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}
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}
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