No-leaks doesn't play nice with roave/dont

[Girgias]

Seems that using use JustDont; in classes makes vendor/bin/roave-no-leaks fail on a lot of tests.
As by removing the usage of roave/dont I stopped getting errors.

If this behaviour is to be expected a note in the Readme would probably do the job.

[Ocramius]

It could be a genuine leak though. I don't think that roave/dont leaks per-se, but it could really be an engine issue

[Girgias]

I ran this on PHP 7.4.0RC4 if that's of any help:

PHP 7.4.0RC4 (cli) (built: Oct 26 2019 10:48:28) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0-dev, Copyright (c) Zend Technologies
    with Zend OPcache v7.4.0RC4, Copyright (c), by Zend Technologies
    with Xdebug v2.8.0beta2, Copyright (c) 2002-2019, by Derick Rethans

IIRC PHP 7.4 does have USAN and ASAN checks which should prevent such engine issues (or I'm misunderstanding what you mean by engine).

[Ocramius]

Yes, talking about that engine.

Otherwise, what I can think of is something in phpunit itself.

[Girgias]

Just doubled checked and PHP 7.4. does (or did at one point) have a MSAN, ASAN, UBSAN shceduled build, so maybe it is indeed phpunit which has an issue.

[Girgias]

I think I've maybe pinned it down to the fact I'm using a typed property and I'm always getting a variation of this error:

Dont\Exception\NonSettableObject: The given object Girgias\CSSParser\Lexer#000000000b7669430000000065904088 is not designed to allow any undefined or inaccessible properties to be written to.

You tried to write to a property called "inputStream".

Perhaps you made a typo in the property name, or tried to write to an inaccessible property?

With that information would you still think it's something related to PHPUnit or more something on no-leaks's side?

EDIT: Okay I'm confident this is due to typed properties, so it's possibly indeed an engine problem.

[Girgias]

So updating to PHP-7.4RC6 fixed most of the issues however now I'm getting one unique class/test-file bugging:

<?php

namespace Girgias\CSSParser\Tokens;

use Dont\JustDont;

final class Hash extends BasicToken implements Token
{
    use JustDont;

    public const UNRESTRICTED = 1;
    public const ID = 2;

    private int $type = self::UNRESTRICTED;

    public function __construct(string $hash, int $type = self::UNRESTRICTED)
    {
        if ($type !== self::UNRESTRICTED && $type !== self::ID) {
            throw new \InvalidArgumentException("Hash token type can only be unrestricted or ID");
        }
        $this->type = $type;
        parent::__construct($hash);
    }

    public function getType(): int
    {
        return $this->type;
    }
}

Fails with:

PHPUnit 8.4.3 by Sebastian Bergmann and contributors.

............................................PHP Fatal error:  Cannot override final method Girgias\CSSParser\Tokens\BasicToken::__get() in /mnt/c/Dev/Libs/css-parser/src/Tokens/Hash.php on line 16
PHP Stack trace:
PHP   1. {main}() /mnt/c/Dev/Libs/css-parser/vendor/phpunit/phpunit/phpunit:0
PHP   2. PHPUnit\TextUI\Command::main() /mnt/c/Dev/Libs/css-parser/vendor/phpunit/phpunit/phpunit:61
PHP   3. PHPUnit\TextUI\Command->run() /mnt/c/Dev/Libs/css-parser/vendor/phpunit/phpunit/src/TextUI/Command.php:159
PHP   4. PHPUnit\TextUI\TestRunner->doRun() /mnt/c/Dev/Libs/css-parser/vendor/phpunit/phpunit/src/TextUI/Command.php:200
PHP   5. PHPUnit\Framework\TestSuite->run() /mnt/c/Dev/Libs/css-parser/vendor/phpunit/phpunit/src/TextUI/TestRunner.php:616
PHP   6. PHPUnit\Framework\TestSuite->run() /mnt/c/Dev/Libs/css-parser/vendor/phpunit/phpunit/src/Framework/TestSuite.php:569
PHP   7. Tests\LexerHashTest->run() /mnt/c/Dev/Libs/css-parser/vendor/phpunit/phpunit/src/Framework/TestSuite.php:569
PHP   8. PHPUnit\Framework\TestResult->run() /mnt/c/Dev/Libs/css-parser/vendor/phpunit/phpunit/src/Framework/TestCase.php:752
PHP   9. Tests\LexerHashTest->runBare() /mnt/c/Dev/Libs/css-parser/vendor/phpunit/phpunit/src/Framework/TestResult.php:691
PHP  10. Tests\LexerHashTest->runTest() /mnt/c/Dev/Libs/css-parser/vendor/phpunit/phpunit/src/Framework/TestCase.php:1020
PHP  11. Tests\LexerHashTest->testUnrestrictedHash() /mnt/c/Dev/Libs/css-parser/vendor/phpunit/phpunit/src/Framework/TestCase.php:1400
PHP  12. Girgias\CSSParser\Lexer->readNext() /mnt/c/Dev/Libs/css-parser/tests/LexerHashTest.php:24
PHP  13. spl_autoload_call() /mnt/c/Dev/Libs/css-parser/src/Lexer.php:135
PHP  14. Composer\Autoload\ClassLoader->loadClass() /mnt/c/Dev/Libs/css-parser/src/Lexer.php:135
PHP  15. Composer\Autoload\includeFile() /mnt/c/Dev/Libs/css-parser/vendor/composer/ClassLoader.php:322
PHP  16. include() /mnt/c/Dev/Libs/css-parser/vendor/composer/ClassLoader.php:444

[tux-rampage]

Not sure if this is the root cause of this issue, but possibly the reason for the one in your latest comment: It seems that you're using JustDont in your BaseToken class as well. This is not possible since the *Dont traits declare methods final to prevent bypassing them via inheritance.

[Girgias]

Not sure if this is the root cause of this issue, but possibly the reason for the one in your latest comment: It seems that you're using JustDont in your BaseToken class as well. This is not possible since the *Dont traits declare methods final to prevent bypassing them via inheritance.

Aaa, this is indeed the case, that does make sense. I suppose me blindly copy pasting it into every file wasn't that smart afterall ^^

[Ocramius]

Is this still valid on 8.x and the newest release (1.2.0) of this tool?