* 4.1:
[Form] Hardened test suite for empty data
Bump phpunit XSD version to 5.2
[Fwb][EventDispatcher][HttpKernel] Fix getClosureScopeClass usage to describe callables
Add required key attribute
This PR was merged into the 4.2-dev branch.
Discussion
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[Cache] add CacheInterface::delete() + improve CacheTrait
| Q | A
| ------------- | ---
| Branch? | 4.2
| Bug fix? | no
| New feature? | yes
| BC breaks? | no
| Deprecations? | no
| Tests pass? | yes
| Fixed tickets | -
| License | MIT
| Doc PR | -
I've been hesitating a lot on this topic, but I think we should add a `delete()` method to `CacheInterface`.
Deleting is a very common invalidation strategy and invalidating by passing `$beta=INF` to `get()` has the drawback of requiring a fetch+unserialize+save-with-past-expiration. That's complexity that a delete removes.
This PR fixes an issue found meanwhile on `get()`: passing an `ItemInterface` to its callback makes it harder than required to implement on top of PSR-6. Let's pass a `CacheItemInterface`.
Lastly, the early expiration logic can be moved from the component to the trait shipped on contracts.
Here we are for all these steps.
Commits
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c6cf690b2f [Cache] add CacheInterface::delete() + improve CacheTrait
FrameworkBundle 4.2 will be compatible with older versions of the Cache
component. In those versions adapters don't implement `ResetInterface`.
For backwards compatibility they still need to be tagged.
