267 lines
7.7 KiB
PHP
267 lines
7.7 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Doctrine\Deprecations;
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use Psr\Log\LoggerInterface;
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use function array_key_exists;
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use function array_reduce;
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use function debug_backtrace;
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use function sprintf;
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use function strpos;
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use function strrpos;
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use function substr;
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use function trigger_error;
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use const DEBUG_BACKTRACE_IGNORE_ARGS;
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use const DIRECTORY_SEPARATOR;
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use const E_USER_DEPRECATED;
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/**
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* Manages Deprecation logging in different ways.
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*
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* By default triggered exceptions are not logged.
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*
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* To enable different deprecation logging mechanisms you can call the
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* following methods:
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*
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* - Minimal collection of deprecations via getTriggeredDeprecations()
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* \Doctrine\Deprecations\Deprecation::enableTrackingDeprecations();
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*
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* - Uses @trigger_error with E_USER_DEPRECATED
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* \Doctrine\Deprecations\Deprecation::enableWithTriggerError();
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*
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* - Sends deprecation messages via a PSR-3 logger
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* \Doctrine\Deprecations\Deprecation::enableWithPsrLogger($logger);
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*
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* Packages that trigger deprecations should use the `trigger()` or
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* `triggerIfCalledFromOutside()` methods.
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*/
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class Deprecation
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{
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private const TYPE_NONE = 0;
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private const TYPE_TRACK_DEPRECATIONS = 1;
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private const TYPE_TRIGGER_ERROR = 2;
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private const TYPE_PSR_LOGGER = 4;
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/** @var int */
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private static $type = self::TYPE_NONE;
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/** @var LoggerInterface|null */
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private static $logger;
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/** @var array<string,bool> */
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private static $ignoredPackages = [];
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/** @var array<string,int> */
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private static $ignoredLinks = [];
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/** @var bool */
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private static $deduplication = true;
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/**
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* Trigger a deprecation for the given package and identfier.
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*
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* The link should point to a Github issue or Wiki entry detailing the
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* deprecation. It is additionally used to de-duplicate the trigger of the
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* same deprecation during a request.
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*
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* @param mixed $args
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*/
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public static function trigger(string $package, string $link, string $message, ...$args): void
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{
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if (self::$type === self::TYPE_NONE) {
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return;
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}
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if (array_key_exists($link, self::$ignoredLinks)) {
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self::$ignoredLinks[$link]++;
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} else {
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self::$ignoredLinks[$link] = 1;
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}
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if (self::$deduplication === true && self::$ignoredLinks[$link] > 1) {
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return;
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}
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if (isset(self::$ignoredPackages[$package])) {
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return;
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}
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$backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 2);
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$message = sprintf($message, ...$args);
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self::delegateTriggerToBackend($message, $backtrace, $link, $package);
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}
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/**
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* Trigger a deprecation for the given package and identifier when called from outside.
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*
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* "Outside" means we assume that $package is currently installed as a
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* dependency and the caller is not a file in that package. When $package
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* is installed as a root package then deprecations triggered from the
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* tests folder are also considered "outside".
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*
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* This deprecation method assumes that you are using Composer to install
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* the dependency and are using the default /vendor/ folder and not a
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* Composer plugin to change the install location. The assumption is also
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* that $package is the exact composer packge name.
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*
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* Compared to {@link trigger()} this method causes some overhead when
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* deprecation tracking is enabled even during deduplication, because it
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* needs to call {@link debug_backtrace()}
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*
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* @param mixed $args
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*/
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public static function triggerIfCalledFromOutside(string $package, string $link, string $message, ...$args): void
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{
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if (self::$type === self::TYPE_NONE) {
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return;
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}
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$backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 2);
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// first check that the caller is not from a tests folder, in which case we always let deprecations pass
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if (strpos($backtrace[1]['file'], DIRECTORY_SEPARATOR . 'tests' . DIRECTORY_SEPARATOR) === false) {
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$path = DIRECTORY_SEPARATOR . 'vendor' . DIRECTORY_SEPARATOR . $package . DIRECTORY_SEPARATOR;
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if (strpos($backtrace[0]['file'], $path) === false) {
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return;
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}
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if (strpos($backtrace[1]['file'], $path) !== false) {
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return;
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}
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}
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if (array_key_exists($link, self::$ignoredLinks)) {
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self::$ignoredLinks[$link]++;
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} else {
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self::$ignoredLinks[$link] = 1;
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}
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if (self::$deduplication === true && self::$ignoredLinks[$link] > 1) {
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return;
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}
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if (isset(self::$ignoredPackages[$package])) {
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return;
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}
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$message = sprintf($message, ...$args);
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self::delegateTriggerToBackend($message, $backtrace, $link, $package);
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}
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/**
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* @param array<mixed> $backtrace
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*/
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private static function delegateTriggerToBackend(string $message, array $backtrace, string $link, string $package): void
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{
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if ((self::$type & self::TYPE_PSR_LOGGER) > 0) {
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$context = [
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'file' => $backtrace[0]['file'],
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'line' => $backtrace[0]['line'],
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'package' => $package,
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'link' => $link,
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];
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self::$logger->notice($message, $context);
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}
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if (! ((self::$type & self::TYPE_TRIGGER_ERROR) > 0)) {
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return;
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}
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$message .= sprintf(
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' (%s:%d called by %s:%d, %s, package %s)',
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self::basename($backtrace[0]['file']),
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$backtrace[0]['line'],
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self::basename($backtrace[1]['file']),
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$backtrace[1]['line'],
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$link,
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$package
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);
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@trigger_error($message, E_USER_DEPRECATED);
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}
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/**
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* A non-local-aware version of PHPs basename function.
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*/
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private static function basename(string $filename): string
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{
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$pos = strrpos($filename, DIRECTORY_SEPARATOR);
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if ($pos === false) {
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return $filename;
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}
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return substr($filename, $pos + 1);
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}
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public static function enableTrackingDeprecations(): void
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{
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self::$type |= self::TYPE_TRACK_DEPRECATIONS;
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}
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public static function enableWithTriggerError(): void
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{
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self::$type |= self::TYPE_TRIGGER_ERROR;
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}
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public static function enableWithPsrLogger(LoggerInterface $logger): void
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{
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self::$type |= self::TYPE_PSR_LOGGER;
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self::$logger = $logger;
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}
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public static function withoutDeduplication(): void
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{
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self::$deduplication = false;
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}
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public static function disable(): void
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{
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self::$type = self::TYPE_NONE;
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self::$logger = null;
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self::$deduplication = true;
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foreach (self::$ignoredLinks as $link => $count) {
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self::$ignoredLinks[$link] = 0;
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}
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}
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public static function ignorePackage(string $packageName): void
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{
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self::$ignoredPackages[$packageName] = true;
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}
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public static function ignoreDeprecations(string ...$links): void
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{
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foreach ($links as $link) {
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self::$ignoredLinks[$link] = 0;
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}
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}
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public static function getUniqueTriggeredDeprecationsCount(): int
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{
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return array_reduce(self::$ignoredLinks, static function (int $carry, int $count) {
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return $carry + $count;
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}, 0);
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}
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/**
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* Returns each triggered deprecation link identifier and the amount of occurrences.
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*
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* @return array<string,int>
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*/
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public static function getTriggeredDeprecations(): array
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{
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return self::$ignoredLinks;
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}
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}
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