StringValue.php

[詳解]

<?php
declare(strict_types=1);

namespace Todo\Shared\Foundation\ValueObject;

abstract class StringValue
{
    protected string $value;

    abstract public function __construct(string $value);

    public function __toString(): string
    {
        return (string)$this->value;
    }

    abstract protected function validate(string $value): void;

    public function isEmpty(): bool
    {
        return mb_strlen($this->value) === 0;
    }
}