AlecRabbit\Spinner\Core\A\ATimer

Complexity

Total Complexity

7

Size/Duplication

Total Lines	40
Duplicated Lines	0 %

Importance

Changes

0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	9	1
A	assertTimeFunction()	0	16	5
A	elapsed()	0	5	1

<?php

declare(strict_types=1);

namespace AlecRabbit\Spinner\Core\A;

use AlecRabbit\Spinner\Contract\ITimer;
use Closure;
use InvalidArgumentException;
use ReflectionException;
use ReflectionFunction;

/**
 * @codeCoverageIgnore
 */
abstract class ATimer implements ITimer
{
    protected const COEFFICIENT = 1e-6; // for milliseconds
    protected Closure $timeFunction;

    public function __construct(
        ?Closure $timeFunction = null,
        protected float $time = 0.0,
    ) {
        self::assertTimeFunction($timeFunction);
        $this->timeFunction =
            $timeFunction
            ??
            static fn(): float => hrtime(true) * self::COEFFICIENT; // returns milliseconds
    }

    private static function assertTimeFunction(?Closure $timeFunction): void
    {
        if (null === $timeFunction) {
            return;
        }
        try {
            $reflection = new ReflectionFunction($timeFunction);
            if (1 !== $reflection->getNumberOfParameters()) {
                throw new InvalidArgumentException('Time function must have no parameters');
            }
            /** @psalm-suppress UndefinedMethod */
            if ('float' !== $reflection->getReturnType()?->getName()) {

The method getName() does not exist on ReflectionType. It seems like you code against a sub-type of ReflectionType such as ReflectionNamedType.

                throw new InvalidArgumentException('Time function must return float');
            }
        } catch (ReflectionException $e) {
            throw new InvalidArgumentException('Time function has invalid signature: ' . $e->getMessage());
        }
    }

    public function elapsed(): float
    {
        $last = $this->time;
        $this->time = (float)($this->timeFunction)();
        return $this->time - $last;
    }
}