Upgrade Rector to v1 and try using DOWN_TO_PHP_74 again #2906
Description
In file src/Config/Rector/Downgrade/Configurators/AbstractDowngradeContainerConfigurationService.php it should use DOWN_TO_PHP_74 to downgrade to PHP 7.4,
but there's a bug in which this code:
\set_error_handler(static fn($type, $message, $file, $line) => throw new \ErrorException($message, 0, $type, $file, $line));from file vendor/symfony/cache/Traits/FilesystemCommonTrait.php is not being downgraded, then the plugin explodes:
Error: There has been a critical error on this website.Learn more about troubleshooting WordPress. There has been a critical error on this website.
PHP Fatal error: During class fetch: Uncaught ParseError: syntax error, unexpected 'throw' (T_THROW) in /app/wordpress/wp-content/plugins/gatographql/vendor/symfony/cache/Traits/FilesystemCommonTrait.php:78
Stack trace:
#0 phar:///usr/local/bin/wp/vendor/composer/ClassLoader.php(428): Composer\Autoload\includeFile('/app/wordpress/...')
#1 [internal function]: Composer\Autoload\ClassLoader->loadClass('PrefixedByPoP\\S...')
#2 /app/wordpress/wp-content/plugins/gatographql/vendor/symfony/cache/Traits/FilesystemTrait.php(21): spl_autoload_call('PrefixedByPoP\\S...')
#3 phar:///usr/local/bin/wp/vendor/composer/ClassLoader.php(571): include('/app/wordpress/...')
#4 phar:///usr/local/bin/wp/vendor/composer/ClassLoader.php(428): Composer\Autoload\includeFile('/app/wordpress/...')
#5 [internal function]: Composer\Autoload\ClassLoader->loadClass('PrefixedByPoP\\S...')
#6 /app/wordpress/wp-content/plugins/gatographql/vendor/symfony/cache/Adapter/FilesystemAdapter.php(18): spl_autoload_call('PrefixedByPoP\\S...')
#7 phar:///usr/local/bin in /app/wordpress/wp-content/plugins/gatographql/vendor/symfony/cache/Traits/FilesystemTrait.php on line 21
(The code should become:
\set_error_handler(static function ($type, $message, $file, $line) {
throw new \ErrorException($message, 0, $type, $file, $line);
});)
To avoid this problem, for the time being, the project is using set DOWN_TO_PHP_73!
Solution
There must be a bug in Rector v0.18 (the current version), in which the downgrade rules have been misplaced across sets.
Then, upgrade to the latest version of Rector, and try again.
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