Deprecation: #100237 - TypoScript-related exceptions

Description

Two exception classes related to the TypoScript condition matching logic have been marked as deprecated in TYPO3 v12 and will be removed in v13:

\TYPO3\CMS\Core\Exception\MissingTsfeException
\TYPO3\CMS\Core\Configuration\TypoScript\Exception\InvalidTypoScriptConditionException

Impact

Both exceptions should have been marked @internal within the core, but were not.

The exception \TYPO3\CMS\Core\Exception\MissingTsfeException was an internal communication class and was caught internally, the use case was solved in a more simple way avoiding the exception.

The exception \TYPO3\CMS\Core\Configuration\TypoScript\Exception\InvalidTypoScriptConditionException was related to conditions which triggered a warning within the symfony expression language. Those were turned into this exception in TYPO3 v11. In TYPO3 v12, the original exception will bubble up, forcing developers to fix the broken Symfony condition syntax.

Affected installations

Third-party extensions most likely neither throw nor catch these exceptions, the extension scanner will find possible usages.

Migration

No direct migration available.

Note

Using the getTSFE() function, developers have to ensure that "TSFE" is available before accessing its properties. A missing "TSFE", e.g. in backend context, does no longer automatically evaluate the whole condition to FALSE. Instead, the function returns NULL, which can be checked using either [getTSFE() && getTSFE().id == 42] or the null-safe operator [getTSFE()?.id == 42].