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<?php |
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/** |
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* This file is part of the sj-i/php-profiler package. |
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* |
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* (c) sji <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace PhpProfiler\Lib\PhpProcessReader; |
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use PhpProfiler\Lib\Process\Pointer\Dereferencer; |
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use PhpProfiler\Lib\Process\Pointer\Pointer; |
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final class TraceCache |
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{ |
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/** @param array<string, array<int, \PhpProfiler\Lib\Process\Pointer\Dereferencable>> $cache */ |
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public function __construct( |
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private float $key = 0, |
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private array $cache = [], |
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) { |
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} |
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public function clearCache(): void |
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{ |
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$this->cache = []; |
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} |
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public function updateCacheKey(float $key): void |
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{ |
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if ($this->key !== $key) { |
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$this->key = $key; |
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$this->clearCache(); |
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} |
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} |
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public function getDereferencer(Dereferencer $dereferencer): Dereferencer |
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{ |
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return new class ($dereferencer, $this) implements Dereferencer { |
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public function __construct( |
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private Dereferencer $dereferencer, |
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private TraceCache $trace_cache, |
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) { |
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} |
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public function deref(Pointer $pointer): mixed |
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{ |
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$item = $this->trace_cache->getCache($pointer); |
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if (is_null($item)) { |
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$item = $this->dereferencer->deref($pointer); |
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$this->trace_cache->setCache( |
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$pointer, |
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$item, |
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); |
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} |
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return $item; |
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} |
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}; |
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} |
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/** |
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* @template T of \PhpProfiler\Lib\Process\Pointer\Dereferencable |
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* @param Pointer<T> $pointer |
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* @param T $item |
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*/ |
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public function setCache(Pointer $pointer, mixed $item): void |
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{ |
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$this->cache[$pointer->type][$pointer->address] = $item; |
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} |
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/** |
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* @template T of \PhpProfiler\Lib\Process\Pointer\Dereferencable |
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* @param Pointer<T> $pointer |
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* @return T|null |
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*/ |
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public function getCache(Pointer $pointer): mixed |
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{ |
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/** @var T|null */ |
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return $this->cache[$pointer->type][$pointer->address] ?? null; |
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} |
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} |
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reliforp /
reli-prof
