130 lines
4.0 KiB
PHP
130 lines
4.0 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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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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namespace Symfony\Component\DependencyInjection\Dumper;
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/**
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* @author Nicolas Grekas <p@tchwork.com>
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*/
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final class Preloader
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{
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public static function append(string $file, array $list): void
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{
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if (!file_exists($file)) {
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throw new \LogicException(\sprintf('File "%s" does not exist.', $file));
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}
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$cacheDir = \dirname($file);
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$classes = [];
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foreach ($list as $item) {
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if (str_starts_with($item, $cacheDir)) {
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file_put_contents($file, \sprintf("require_once __DIR__.%s;\n", var_export(strtr(substr($item, \strlen($cacheDir)), \DIRECTORY_SEPARATOR, '/'), true)), \FILE_APPEND);
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continue;
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}
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$classes[] = \sprintf("\$classes[] = %s;\n", var_export($item, true));
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}
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file_put_contents($file, \sprintf("\n\$classes = [];\n%s\$preloaded = Preloader::preload(\$classes, \$preloaded);\n", implode('', $classes)), \FILE_APPEND);
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}
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public static function preload(array $classes, array $preloaded = []): array
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{
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set_error_handler(function ($t, $m, $f, $l) {
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if (error_reporting() & $t) {
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if (__FILE__ !== $f) {
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throw new \ErrorException($m, 0, $t, $f, $l);
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}
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throw new \ReflectionException($m);
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}
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});
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$prev = [];
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try {
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while ($prev !== $classes) {
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$prev = $classes;
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foreach ($classes as $c) {
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if (!isset($preloaded[$c])) {
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self::doPreload($c, $preloaded);
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}
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}
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$classes = array_merge(get_declared_classes(), get_declared_interfaces(), get_declared_traits());
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}
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} finally {
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restore_error_handler();
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}
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return $preloaded;
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}
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private static function doPreload(string $class, array &$preloaded): void
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{
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if (isset($preloaded[$class]) || \in_array($class, ['self', 'static', 'parent'], true)) {
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return;
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}
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$preloaded[$class] = true;
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try {
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if (!class_exists($class) && !interface_exists($class, false) && !trait_exists($class, false)) {
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return;
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}
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$r = new \ReflectionClass($class);
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if ($r->isInternal()) {
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return;
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}
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$r->getConstants();
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$r->getDefaultProperties();
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foreach ($r->getProperties(\ReflectionProperty::IS_PUBLIC) as $p) {
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self::preloadType($p->getType(), $preloaded);
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}
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foreach ($r->getMethods(\ReflectionMethod::IS_PUBLIC) as $m) {
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foreach ($m->getParameters() as $p) {
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if ($p->isDefaultValueAvailable() && $p->isDefaultValueConstant()) {
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$c = $p->getDefaultValueConstantName();
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if ($i = strpos($c, '::')) {
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self::doPreload(substr($c, 0, $i), $preloaded);
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}
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}
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self::preloadType($p->getType(), $preloaded);
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}
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self::preloadType($m->getReturnType(), $preloaded);
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}
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} catch (\Throwable) {
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// ignore missing classes
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}
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}
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private static function preloadType(?\ReflectionType $t, array &$preloaded): void
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{
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if (!$t) {
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return;
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}
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foreach (($t instanceof \ReflectionUnionType || $t instanceof \ReflectionIntersectionType) ? $t->getTypes() : [$t] as $t) {
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if (!$t->isBuiltin()) {
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self::doPreload($t instanceof \ReflectionNamedType ? $t->getName() : $t, $preloaded);
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}
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}
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}
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}
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