rector.php

<?php

/**
 * Rector configuration: downgrade the modern source under src/ to PHP 7.0
 * syntax, so the released package installs and runs on the same floor as
 * ext-rdump (PHP 7.0+).
 *
 * Development happens in modern PHP in src/; `composer downgrade` copies
 * src/ to build/php70/src/ and rewrites it in place with the rules below.
 * That downgraded tree is what a release ships.
 *
 * Pipeline (mirrors reli's rector-sidecar-client.php so both reliforp
 * packages reach the same 7.0 floor the same way):
 *   1. Rector's official downgrade level set covers PHP 8.x -> 7.1 via
 *      withDowngradeSets(php71: true): readonly, promoted properties, match,
 *      union types, str_contains/str_starts_with, arrow functions, typed
 *      properties, etc.
 *   2. The 7.1 -> 7.0 gap (Rector ships no rules for it) is filled by our
 *      own rules under tools/rector/Downgrade*ToPhp70Rector:
 *        - nullable type hints (?T) : params get `= null`, returns dropped
 *        - void return type          : dropped
 *        - class const visibility    : private/protected/public stripped
 *   3. The 0o<digits> octal literal syntax (PHP 8.1+) is rewritten by a sed
 *      pass in the composer "downgrade" script after Rector finishes, since
 *      Rector's pretty-printer preserves the original token for unmodified
 *      number nodes.
 */

declare(strict_types=1);

use Rector\Config\RectorConfig;
use Rector\ValueObject\PhpVersion;
use Reliforp\PhpMemoryDump\Build\Rector\DowngradeConstVisibilityToPhp70Rector;
use Reliforp\PhpMemoryDump\Build\Rector\DowngradeNullableTypeToPhp70Rector;
use Reliforp\PhpMemoryDump\Build\Rector\DowngradeVoidReturnToPhp70Rector;

return RectorConfig::configure()
    ->withPaths([__DIR__ . '/build/php70/src'])
    ->withPhpVersion(PhpVersion::PHP_70)
    ->withDowngradeSets(php71: true)
    ->withRules([
        DowngradeNullableTypeToPhp70Rector::class,
        DowngradeVoidReturnToPhp70Rector::class,
        DowngradeConstVisibilityToPhp70Rector::class,
    ]);