PHP-Parser/.php-cs-fixer.dist.php

<?php

$finder = PhpCsFixer\Finder::create()
    ->exclude('PhpParser/Parser')
    ->in(__DIR__ . '/lib')
    ->in(__DIR__ . '/test')
    ->in(__DIR__ . '/grammar')
;

$config = new PhpCsFixer\Config();
return $config->setRiskyAllowed(true)
    ->setRules([
        '@PSR12' => true,
        // We use PSR12 with consistent brace placement.
        'curly_braces_position' => [
            'functions_opening_brace' => 'same_line',
            'classes_opening_brace' => 'same_line',
        ],
        // declare(strict_types=1) on the same line as <?php.
        'blank_line_after_opening_tag' => false,
        'declare_strict_types' => true,
        // Keep argument formatting for now.
        'method_argument_space' => ['on_multiline' => 'ignore'],
        'binary_operator_spaces' => [
            'default' => 'at_least_single_space',
            // Work around https://github.com/PHP-CS-Fixer/PHP-CS-Fixer/issues/7303.
            'operators' => ['=' => null],
        ],
    ])
    ->setFinder($finder)
;