This patch adds more type hints to selected classes. For classes that are probably
extended by Fluid integrations, we don't implement all return type hints to prevent
hard-breaking existing functionality. In addition to careful consideration when
adding the types, this is verified by running the changes against TYPO3 Core CI
to catch any unwanted breaking changes. Some @todo lines have been added to
interfaces that are user-facing functionality and thus will get return types with
Fluid v5.
This patch also clarifies return types of ViewHelpers and functions that pass along
those values. In some areas, the existing PHPDOC annotations were incorrect here
because they didn't properly account for the fact that a ViewHelper can return
any type, not just a string, as long as its either stringable or will be directly
used by another ViewHelper that can take that type as an input value.
This patch adds more type hints to selected classes. For classes that are probably extended by Fluid integrations, we don't implement all return type hints to prevent hard-breaking existing functionality. In addition to careful consideration when adding the types, this is verified by running the changes against TYPO3 Core CI to catch any unwanted breaking changes. Some
@todolines have been added to interfaces that are user-facing functionality and thus will get return types with Fluid v5.This patch also clarifies return types of ViewHelpers and functions that pass along those values. In some areas, the existing PHPDOC annotations were incorrect here because they didn't properly account for the fact that a ViewHelper can return any type, not just a string, as long as its either stringable or will be directly used by another ViewHelper that can take that type as an input value.