smuuf/primi

<?php

declare(strict_types=1);

namespace Smuuf\Primi\Extensions;

use \Smuuf\StrictObject;
use \Smuuf\Primi\Ex\EngineError;

/**
 * PHP attribute that is to be used to mark PHP extension methods from which
 * should Primi engine create Primi functions.
 */
#[\Attribute(\Attribute::TARGET_FUNCTION | \Attribute::TARGET_METHOD)]
class PrimiFunc {

    use StrictObject;

    public const CONV_CALLARGS = 0x01;
    public const CONV_NATIVE = 0x02;

    private const VALID_CONVENTIONS = [
        self::CONV_CALLARGS,
        self::CONV_NATIVE
    ];

    public function __construct(
        private bool $toStack = \false,
        private int $callConv = self::CONV_NATIVE,
    ) {
        if (!\in_array($callConv, self::VALID_CONVENTIONS)) {
            throw new EngineError('Invalid $callConv argument');
        }
    }

    public function hasToStack(): bool {
        return $this->toStack;
    }

    public function hasCallConv(int $callConv): bool {
        return $this->callConv === $callConv;
    }

}