8000 [PropertyAccess] Throw an InvalidArgumentException when the type do not match by dunglas · Pull Request #17738 · symfony/symfony · GitHub
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[PropertyAccess] Throw an InvalidArgumentException when the type do not match #17738

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[PropertyAccess] Throw an InvalidArgumentException when the type do not match #17738

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1329eb6
[PropertyAccess] Throw an InvalidArgumentException when the type do n…
dunglas Feb 9, 2016
762e5b1
Add missing return statement. Update PHPDoc
dunglas Feb 9, 2016
90e7953
Fixes some edge cases...
dunglas Feb 16, 2016
834f970
Test E_RECOVERABLE_ERROR
dunglas Feb 16, 2016
bd210f9
Fix typo
dunglas Feb 16, 2016
799ab29
Emulate PHP 7's \TypeError
dunglas Feb 23, 2016
7233f70
CS
dunglas Feb 23, 2016
453cc12
PHPDoc
dunglas Feb 23, 2016
fe8e9e5
More CS fixes
dunglas Feb 23, 2016
28dc4e3
CS
dunglas Feb 23, 2016
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Test E_RECOVERABLE_ERROR
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@dunglas
dunglas committed Feb 16, 2016
commit 834f97030c0c4d3825d2168c02adcbb35c5175a2
6 changes: 5 additions & 1 deletion src/Symfony/Component/PropertyAccess/PropertyAccessor.php
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Expand Up @@ -600,7 +600,11 @@ private function callMethod($object, $method, $value) {

// PHP 5
set_error_handler(function ($errno, $errstr) {
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Sorry for disturbing.
Maybe better to use something like this:

set_error_handler(function ($errno, $errstr) use ($object, $method) {
    if (E_RECOVERABLE_ERROR === $errno && false !== strpos($errstr, sprintf('passed to %s::%s() must', get_class($object), $method))) {
        throw new InvalidArgumentException($errstr);
    }

    return false;
});

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I prefer to not test the error message. It's not clean and it still does not handle all cases. Throwing an error (and not an exception) in a mutator should be very very rare in a real code.

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What cases it does not handle?
If found no other messages in PHP source that match used pattern:
https://github.com/php/php-src/blob/be607e724c69c92f8cda72a45a13a26e7c439aec/Zend/zend_execute.c#L644
https://github.com/php/php-src/blob/be607e724c69c92f8cda72a45a13a26e7c439aec/Zend/zend_execute.c#L648
https://github.com/php/php-src/blob/be607e724c69c92f8cda72a45a13a26e7c439aec/Zend/zend_execute.c#L651

And it seems that message is same for all supported PHP 5 versions: https://3v4l.org/VZhkg
I prefer to use more bullet proof solution than relying that something wont happen

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A user can trigger an error with the same or a similar message.

What do you think about that @symfony/deciders

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Users are not supposed to trigger errors with E_RECOVERABLE_ERROR type (there are specific ones with USER_...). So if there are other E_RECOVERABLE_ERROR errors that could be triggered by PHP here, we need to make sure only type errors are handled.

throw new InvalidArgumentException($errstr);
if (E_RECOVERABLE_ERROR === $errno) {
throw new InvalidArgumentException($errstr);
}

return false;
});

try {
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0