Spatie\Php7to5\NodeVisitors\SpaceshipOperatorReplacer::leaveNode PHP Метод

    public function leaveNode(Node $node)
    {
        if (!$node instanceof Spaceship) {
            return;
        }
        /*
         * Replacing
         * $a <=> $b
         * with
         * $a < $b ? -1 : ($a == $b ? 0 : 1)
         */
        $attributes = $node->getAttributes();
        $smaller = new UnaryMinus(new LNumber(1, $attributes), $attributes);
        $equal = new LNumber(0, $attributes);
        $larger = new LNumber(1, $attributes);
        $isEqual = new Equal($node->left, $node->right, $attributes);
        $isSmaller = new Smaller($node->left, $node->right, $attributes);
        $else = new Ternary($isEqual, $equal, $larger, $attributes);
        return new Ternary($isSmaller, $smaller, $else, $attributes);
    }