Skip to content

Commit

Permalink
minor #33236 Add return-types with help from DebugClassLoader in the …
Browse files Browse the repository at this point in the history
…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] nicolas-grekas#28 src/Symfony/Component/Config
 - [x] src/Symfony/Component/Console
 - [x] src/Symfony/Component/CssSelector
 - [x] src/Symfony/Component/Debug
 - [x] nicolas-grekas#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] nicolas-grekas#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] nicolas-grekas#25 src/Symfony/Component/Routing
 - [x] nicolas-grekas#26 src/Symfony/Component/Security
 - [x] src/Symfony/Component/Security/Core
 - [x] src/Symfony/Component/Security/Guard
 - [x] src/Symfony/Component/Security/Http
 - [x] nicolas-grekas#29 src/Symfony/Component/Serializer
 - [x] src/Symfony/Component/Security/Csrf
 - [x] src/Symfony/Component/Stopwatch
 - [x] src/Symfony/Component/Templating
 - [x] nicolas-grekas#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
-------

11149a1 Add return-types with help from DebugClassLoader in the CI
  • Loading branch information
nicolas-grekas committed Aug 26, 2019
2 parents db9549d + 11149a1 commit 6dd9d24
Show file tree
Hide file tree
Showing 3 changed files with 61 additions and 7 deletions.
45 changes: 45 additions & 0 deletions .github/patch-types.php
@@ -0,0 +1,45 @@
<?php

if (false === getenv('SYMFONY_PATCH_TYPE_DECLARATIONS')) {
putenv('SYMFONY_PATCH_TYPE_DECLARATIONS=force=1&php71-compat=0');
}

require __DIR__.'/../.phpunit/phpunit-8.3-0/vendor/autoload.php';

file_put_contents(__DIR__.'/../vendor/autoload.php', preg_replace('/^return (Composer.*);/m', <<<'EOTXT'
$loader = \1;
$loader->addClassMap(['Symfony\Component\Debug\Exception\FlattenException' => \dirname(__DIR__).'/src/Symfony/Component/Debug/Exception/FlattenException.php']);
return $loader;
EOTXT
, file_get_contents(__DIR__.'/../vendor/autoload.php')));

$loader = require __DIR__.'/../vendor/autoload.php';

Symfony\Component\ErrorHandler\DebugClassLoader::enable();

foreach ($loader->getClassMap() as $class => $file) {
switch (true) {
case false !== strpos(realpath($file), '/vendor/'):
case false !== strpos($file, '/src/Symfony/Bridge/PhpUnit/'):
case false !== strpos($file, '/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Validation/Article.php'):
case false !== strpos($file, '/src/Symfony/Component/Config/Tests/Fixtures/BadParent.php'):
case false !== strpos($file, '/src/Symfony/Component/Debug/Tests/Fixtures/'):
case false !== strpos($file, '/src/Symfony/Component/DependencyInjection/Tests/Compiler/OptionalServiceClass.php'):
case false !== strpos($file, '/src/Symfony/Component/DependencyInjection/Tests/Fixtures/ParentNotExists.php'):
case false !== strpos($file, '/src/Symfony/Component/DependencyInjection/Tests/Fixtures/Prototype/BadClasses/MissingParent.php'):
case false !== strpos($file, '/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/'):
case false !== strpos($file, '/src/Symfony/Component/ErrorHandler/Tests/Fixtures/'):
case false !== strpos($file, '/src/Symfony/Component/PropertyInfo/Tests/Fixtures/Dummy.php'):
case false !== strpos($file, '/src/Symfony/Component/PropertyInfo/Tests/Fixtures/ParentDummy.php'):
case false !== strpos($file, '/src/Symfony/Component/Serializer/Tests/Normalizer/Features/ObjectOuter.php'):
case false !== strpos($file, '/src/Symfony/Component/VarDumper/Tests/Fixtures/NotLoadableClass.php'):
case false !== strpos($file, '/src/Symfony/Component/VarDumper/Tests/Fixtures/Php74.php') && \PHP_VERSION_ID < 70400:
continue 2;
}

class_exists($class);
}

Symfony\Component\ErrorHandler\DebugClassLoader::disable();
21 changes: 15 additions & 6 deletions .travis.yml
Expand Up @@ -26,7 +26,7 @@ env:
matrix:
include:
- php: 7.1
env: php_extra="7.2"
env: php_extra="7.2 7.4snapshot"
- php: 7.3
env: deps=high
- php: 7.4snapshot
Expand Down Expand Up @@ -79,10 +79,8 @@ before_install:
export COMPONENTS=$(find src/Symfony -mindepth 2 -type f -name phpunit.xml.dist -printf '%h\n')
find ~/.phpenv -name xdebug.ini -delete
if [[ $TRAVIS_PHP_VERSION = 7.4* && $deps ]]; then
if [[ $TRAVIS_PHP_VERSION = 7.4* ]]; then
export PHPUNIT_X="$PHPUNIT_X,issue-32995"
elif [[ $TRAVIS_PHP_VERSION = 7.4* ]]; then
export PHPUNIT_X="$PHPUNIT --group issue-32995"
fi
nanoseconds () {
Expand Down Expand Up @@ -150,7 +148,7 @@ before_install:
- |
# php.ini configuration
for PHP in $TRAVIS_PHP_VERSION $php_extra; do
phpenv global $PHP 2>/dev/null || (cd / && wget https://s3.amazonaws.com/travis-php-archives/binaries/ubuntu/14.04/x86_64/php-$PHP.tar.bz2 -O - | tar -xj)
phpenv global $PHP 2>/dev/null || (cd / && wget https://storage.googleapis.com/travis-ci-language-archives/php/binaries/ubuntu/16.04/x86_64/php-$PHP.tar.bz2 -O - | tar -xj)
INI=~/.phpenv/versions/$PHP/etc/conf.d/travis.ini
echo date.timezone = Europe/Paris >> $INI
echo memory_limit = -1 >> $INI
Expand Down Expand Up @@ -262,7 +260,7 @@ install:
run_tests () {
set -e
export PHP=$1
if [[ $PHP != $TRAVIS_PHP_VERSION && $TRAVIS_PULL_REQUEST != false ]]; then
if [[ $PHP != 7.4* && $PHP != $TRAVIS_PHP_VERSION && $TRAVIS_PULL_REQUEST != false ]]; then
echo -e "\\n\\e[1;34mIntermediate PHP version $PHP is skipped for pull requests.\\e[0m"
break
fi
Expand All @@ -279,6 +277,17 @@ install:
echo "$COMPONENTS" | parallel --gnu "tfold {} 'cd {} && ([ -e composer.lock ] && ${COMPOSER_UP/update/install} || $COMPOSER_UP --prefer-lowest --prefer-stable) && $PHPUNIT_X'"
echo "$COMPONENTS" | xargs -n1 -I{} tar --append -f ~/php-ext/composer-lowest.lock.tar {}/composer.lock
else
if [[ $PHP = 7.4* ]]; then
# add return types before running the test suite
rm vendor/symfony/contracts -Rf
ln -sd $(realpath src/Symfony/Contracts) vendor/symfony/contracts
sed -i 's/"\*\*\/Tests\/"//' composer.json
composer install --optimize-autoloader
php .github/patch-types.php
php .github/patch-types.php # ensure the script is idempotent
export PHPUNIT_X="$PHPUNIT_X,issue-32995,legacy"
fi
echo "$COMPONENTS" | parallel --gnu "tfold {} $PHPUNIT_X {}"
tfold src/Symfony/Component/Console.tty $PHPUNIT src/Symfony/Component/Console --group tty
if [[ $PHP = ${MIN_PHP%.*} ]]; then
Expand Down
Expand Up @@ -100,7 +100,7 @@ protected function doDestroy($sessionId)
}

/**
* @return int
* @return bool
*/
public function gc($maxlifetime)
{
Expand Down

0 comments on commit 6dd9d24

Please sign in to comment.