This repository has been archived on 2023-08-20. You can view files and clone it, but cannot push or open issues or pull requests.
Go to file
Nicolas Grekas 6dd9d24e50 minor #33236 Add return-types with help from DebugClassLoader in the CI (nicolas-grekas)
This PR was merged into the 4.4 branch.

Discussion
----------

Add return-types with help from DebugClassLoader in the CI

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #33228
| License       | MIT
| Doc PR        | -

I've spent a great deal of time on this PR, experimenting with adding return types to the codebase.

TL;DR: my conclusion is that we cannot make it for 5.0.

There are two reasons for this:
1. The burden this will put on the community is immense, especially when considering that third party libs must also be updated for any apps to work at all on a return-typed 5.0. Symfony must add them last, not first.
2. We need return type covariance, yet this won't be available before PHP 7.4, while 5.0 supports 7.2.

What's attached?
- ~a draft patching logic in `DebugClassLoader` to add return-type where it discovers this should be done~
- return types added automatically thanks to #33283
- ~manual fixes for situations not handled (yet, if possible at all) by that logic in `DebugClassLoader`~ #33332

What's achieved? Tests are green \o/

At this stage, I think we have to acknowledge we won't add return-types in 5.0 but prepare a serious plan to add them in 6.0.

This plan could be:
- [x] make DebugClassLoader able to automate adding return types.
- [x] in 4.4: add all possible return types that don't break BC, e.g. in `Tests` and in generated code
- [x] spot and fix places where annotations aren't accurate, add more annotations where possible.
- [x] ensure `DebugClassLoader` triggers the best possible deprecations that encourage ppl to add return-types in their libs/apps. This means we could decide to disable the current ones (see #33235) and to re-enable them in 5.1. This will also give us the time to fine-tune the tooling (item 1. on this list)

Ideally, we could reach a point where we could test branch 4.4 *with* return-types: we'd use the tooling to add them automatically in the CI job, then we'd run tests and they should be green. Let's do this?

Help Wanted, here is how:

*With PHP 7.4*, run `php .github/patch-types.php`. This will add return types everywhere possible.

Then run tests, e.g. `./phpunit src/Symfony/Component/HttpFoundation --exclude-group legacy,issue-32995`

Here are the components that fail with return types added, please help me check them all with a PR on [my fork](https://github.com/nicolas-grekas/symfony/tree/eh-return-types):
 - [x] src/Symfony/Bridge/Doctrine
 - [x] src/Symfony/Bridge/Monolog
 - [x] src/Symfony/Bridge/PhpUnit
 - [x] src/Symfony/Bridge/ProxyManager
 - [x] src/Symfony/Bridge/Twig
 - [x] src/Symfony/Bundle/DebugBundle
 - [x] src/Symfony/Bundle/FrameworkBundle
 - [x] src/Symfony/Bundle/SecurityBundle
 - [x] src/Symfony/Bundle/TwigBundle
 - [x] src/Symfony/Bundle/WebProfilerBundle
 - [x] src/Symfony/Bundle/WebServerBundle
 - [x] src/Symfony/Component/Asset
 - [x] src/Symfony/Component/BrowserKit
 - [x] src/Symfony/Component/Cache
 - [x] https://github.com/nicolas-grekas/symfony/pull/28 src/Symfony/Component/Config
 - [x] src/Symfony/Component/Console
 - [x] src/Symfony/Component/CssSelector
 - [x] src/Symfony/Component/Debug
 - [x] https://github.com/nicolas-grekas/symfony/pull/28 src/Symfony/Component/DependencyInjection
 - [x] src/Symfony/Component/DomCrawler
 - [x] src/Symfony/Component/Dotenv
 - [x] src/Symfony/Component/ErrorHandler
 - [x] src/Symfony/Component/ErrorRenderer
 - [x] https://github.com/nicolas-grekas/symfony/pull/24 src/Symfony/Component/EventDispatcher
 - [x] src/Symfony/Component/ExpressionLanguage
 - [x] src/Symfony/Component/Filesystem
 - [x] src/Symfony/Component/Finder
 - [x] src/Symfony/Component/Form
 - [x] src/Symfony/Component/HttpClient
 - [x] src/Symfony/Component/HttpFoundation
 - [x] src/Symfony/Component/HttpKernel
 - [x] src/Symfony/Component/Inflector
 - [x] src/Symfony/Component/Intl
 - [x] src/Symfony/Component/Ldap
 - [x] src/Symfony/Component/Lock
 - [x] src/Symfony/Component/Mailer
 - [x] src/Symfony/Component/Messenger
 - [x] src/Symfony/Component/Mime
 - [x] src/Symfony/Component/OptionsResolver
 - [x] src/Symfony/Component/Process
 - [x] src/Symfony/Component/PropertyAccess
 - [x] src/Symfony/Component/PropertyInfo
 - [x] https://github.com/nicolas-grekas/symfony/pull/25 src/Symfony/Component/Routing
 - [x] https://github.com/nicolas-grekas/symfony/pull/26 src/Symfony/Component/Security
 - [x] src/Symfony/Component/Security/Core
 - [x] src/Symfony/Component/Security/Guard
 - [x] src/Symfony/Component/Security/Http
 - [x] https://github.com/nicolas-grekas/symfony/pull/29 src/Symfony/Component/Serializer
 - [x] src/Symfony/Component/Security/Csrf
 - [x] src/Symfony/Component/Stopwatch
 - [x] src/Symfony/Component/Templating
 - [x] https://github.com/nicolas-grekas/symfony/pull/27 src/Symfony/Component/Translation
 - [x] src/Symfony/Component/Validator
 - [x] src/Symfony/Component/VarDumper
 - [x] src/Symfony/Component/VarExporter
 - [x] src/Symfony/Component/WebLink
 - [x] src/Symfony/Component/Workflow
 - [x] src/Symfony/Component/Yaml
 - [x] src/Symfony/Contracts

Commits
-------

11149a1fbb Add return-types with help from DebugClassLoader in the CI
2019-08-26 15:38:09 +02:00
.composer Drop hirak/prestissimo 2016-05-12 07:44:15 -05:00
.github Add return-types with help from DebugClassLoader in the CI 2019-08-26 15:31:28 +02:00
src/Symfony minor #33236 Add return-types with help from DebugClassLoader in the CI (nicolas-grekas) 2019-08-26 15:38:09 +02:00
.appveyor.yml Merge branch '3.4' into 4.3 2019-08-10 22:47:15 +02:00
.editorconfig Update .editorconfig 2018-09-06 16:22:56 +02:00
.gitignore Run the phpunit-bridge from a PR 2019-08-02 17:46:19 +02:00
.php_cs.dist Merge branch '4.3' into 4.4 2019-08-14 14:37:46 +02:00
.travis.yml Add return-types with help from DebugClassLoader in the CI 2019-08-26 15:31:28 +02:00
CHANGELOG-4.0.md Merge branch '3.4' into 4.1 2018-08-01 18:22:14 +02:00
CHANGELOG-4.1.md updated CHANGELOG for 4.1.10 2019-01-06 17:16:07 +01:00
CHANGELOG-4.2.md updated CHANGELOG for 4.2.10 2019-06-26 16:19:37 +02:00
CHANGELOG-4.3.md updated CHANGELOG for 4.3.3 2019-07-28 09:10:02 +02:00
CODE_OF_CONDUCT.md Added the Code of Conduct file 2018-10-10 03:13:30 -07:00
composer.json Use PHP 7.4 on deps=low 2019-08-22 08:53:14 +02:00
CONTRIBUTING.md Mention the community review guide 2016-12-18 22:02:35 +01:00
CONTRIBUTORS.md Fixed markdown file 2019-08-13 19:39:09 +02:00
LICENSE update year in license files 2019-01-01 14:45:19 +01:00
link Merge branch '3.4' into 4.2 2019-05-20 18:15:26 +02:00
phpunit cs fix 2019-08-14 11:39:58 +02:00
phpunit.xml.dist [Cache] Add optimized FileSystem & Redis TagAware Adapters 2019-04-24 07:47:35 +02:00
README.md Merge branch '2.8' into 3.4 2018-05-25 16:50:57 +02:00
UPGRADE-4.0.md Merge branch '3.4' into 4.2 2019-06-06 12:03:46 +02:00
UPGRADE-4.1.md Merge branch '4.0' into 4.1 2018-05-31 12:17:53 +02:00
UPGRADE-4.2.md [Validator] fix deprecation layer of ValidatorBuilder 2019-06-06 19:07:55 +02:00
UPGRADE-4.3.md cs fix 2019-08-13 08:47:41 +02:00
UPGRADE-4.4.md Deprecate returning non-boolean values from checkCredentials(). 2019-08-23 20:43:33 +02:00
UPGRADE-5.0.md Deprecate returning non-boolean values from checkCredentials(). 2019-08-23 20:43:33 +02:00

Symfony is a PHP framework for web applications and a set of reusable PHP components. Symfony is used by thousands of web applications (including BlaBlaCar.com and Spotify.com) and most of the popular PHP projects (including Drupal and Magento).

Installation

Documentation

Community

Contributing

Symfony is an Open Source, community-driven project with thousands of contributors. Join them contributing code or contributing documentation.

Security Issues

If you discover a security vulnerability within Symfony, please follow our disclosure procedure.

About Us

Symfony development is sponsored by SensioLabs, led by the Symfony Core Team and supported by Symfony contributors.