Add void types where no return statement is present

.php-cs-fixer.php

@@ -71,7 +71,6 @@ return $config->setRules([
         'random_api_migration' => true,
         'ternary_to_null_coalescing' => true,
         //'declare_strict_types' => true,
-        //'void_return' => true,
     ])
     ->setUsingCache(true)
     ->setRiskyAllowed(true)

src/Composer/Autoload/ClassMapGenerator.php

@@ -38,7 +38,7 @@ class ClassMapGenerator
      * @param string                     $file The name of the class map file
      * @return void
      */
-    public static function dump($dirs, $file)
+    public static function dump($dirs, $file): void
     {
         $maps = array();
 

src/Composer/Autoload/PhpFileCleaner.php

@@ -51,7 +51,7 @@ class PhpFileCleaner
      * @param string[] $types
      * @return void
      */
-    public static function setTypeConfig($types)
+    public static function setTypeConfig($types): void
     {
         foreach ($types as $type) {
             self::$typeConfig[$type[0]] = array(
@@ -152,7 +152,7 @@ class PhpFileCleaner
     /**
      * @return void
      */
-    private function skipToPhp()
+    private function skipToPhp(): void
     {
         while ($this->index < $this->len) {
             if ($this->contents[$this->index] === '<' && $this->peek('?')) {
@@ -168,7 +168,7 @@ class PhpFileCleaner
      * @param string $delimiter
      * @return void
      */
-    private function skipString($delimiter)
+    private function skipString($delimiter): void
     {
         $this->index += 1;
         while ($this->index < $this->len) {
@@ -187,7 +187,7 @@ class PhpFileCleaner
     /**
      * @return void
      */
-    private function skipComment()
+    private function skipComment(): void
     {
         $this->index += 2;
         while ($this->index < $this->len) {
@@ -203,7 +203,7 @@ class PhpFileCleaner
     /**
      * @return void
      */
-    private function skipToNewline()
+    private function skipToNewline(): void
     {
         while ($this->index < $this->len) {
             if ($this->contents[$this->index] === "\r" || $this->contents[$this->index] === "\n") {
@@ -217,7 +217,7 @@ class PhpFileCleaner
      * @param string $delimiter
      * @return void
      */
-    private function skipHeredoc($delimiter)
+    private function skipHeredoc($delimiter): void
     {
         $firstDelimiterChar = $delimiter[0];
         $delimiterLength = \strlen($delimiter);

src/Composer/Command/AboutCommand.php

@@ -24,7 +24,7 @@ class AboutCommand extends BaseCommand
     /**
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName('about')

src/Composer/Command/ArchiveCommand.php

@@ -41,7 +41,7 @@ class ArchiveCommand extends BaseCommand
     /**
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName('archive')

src/Composer/Command/BaseDependencyCommand.php

@@ -136,7 +136,7 @@ class BaseDependencyCommand extends BaseCommand
      *
      * @return void
      */
-    protected function printTable(OutputInterface $output, $results)
+    protected function printTable(OutputInterface $output, $results): void
     {
         $table = array();
         $doubles = array();
@@ -172,7 +172,7 @@ class BaseDependencyCommand extends BaseCommand
      *
      * @return void
      */
-    protected function initStyles(OutputInterface $output)
+    protected function initStyles(OutputInterface $output): void
     {
         $this->colors = array(
             'green',
@@ -197,7 +197,7 @@ class BaseDependencyCommand extends BaseCommand
      *
      * @return void
      */
-    protected function printTree($results, $prefix = '', $level = 1)
+    protected function printTree($results, $prefix = '', $level = 1): void
     {
         $count = count($results);
         $idx = 0;
@@ -223,7 +223,7 @@ class BaseDependencyCommand extends BaseCommand
      *
      * @return void
      */
-    private function writeTreeLine($line)
+    private function writeTreeLine($line): void
     {
         $io = $this->getIO();
         if (!$io->isDecorated()) {

src/Composer/Command/CheckPlatformReqsCommand.php

@@ -26,7 +26,7 @@ class CheckPlatformReqsCommand extends BaseCommand
     /**
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this->setName('check-platform-reqs')
             ->setDescription('Check that platform requirements are satisfied.')
@@ -174,7 +174,7 @@ EOT
      *
      * @return void
      */
-    protected function printTable(OutputInterface $output, $results)
+    protected function printTable(OutputInterface $output, $results): void
     {
         $rows = array();
         foreach ($results as $result) {

src/Composer/Command/ClearCacheCommand.php

@@ -25,7 +25,7 @@ class ClearCacheCommand extends BaseCommand
     /**
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName('clear-cache')

src/Composer/Command/ConfigCommand.php

@@ -62,7 +62,7 @@ class ConfigCommand extends BaseCommand
     /**
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName('config')
@@ -154,7 +154,7 @@ EOT
      * @return void
      * @throws \Exception
      */
-    protected function initialize(InputInterface $input, OutputInterface $output)
+    protected function initialize(InputInterface $input, OutputInterface $output): void
     {
         parent::initialize($input, $output);
 
@@ -810,7 +810,7 @@ EOT
      *
      * @return void
      */
-    protected function handleSingleValue($key, array $callbacks, array $values, $method)
+    protected function handleSingleValue($key, array $callbacks, array $values, $method): void
     {
         list($validator, $normalizer) = $callbacks;
         if (1 !== count($values)) {
@@ -845,7 +845,7 @@ EOT
      *
      * @return void
      */
-    protected function handleMultiValue($key, array $callbacks, array $values, $method)
+    protected function handleMultiValue($key, array $callbacks, array $values, $method): void
     {
         list($validator, $normalizer) = $callbacks;
         if (true !== $validation = $validator($values)) {
@@ -868,7 +868,7 @@ EOT
      *
      * @return void
      */
-    protected function listConfiguration(array $contents, array $rawContents, OutputInterface $output, $k = null, $showSource = false)
+    protected function listConfiguration(array $contents, array $rawContents, OutputInterface $output, $k = null, $showSource = false): void
     {
         $origK = $k;
         $io = $this->getIO();

src/Composer/Command/CreateProjectCommand.php

@@ -63,7 +63,7 @@ class CreateProjectCommand extends BaseCommand
     /**
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName('create-project')
@@ -443,7 +443,7 @@ EOT
             @mkdir($directory, 0777, true);
             if ($realDir = realpath($directory)) {
                 pcntl_async_signals(true);
-                pcntl_signal(SIGINT, function () use ($realDir) {
+                pcntl_signal(SIGINT, function () use ($realDir): void {
                     $fs = new Filesystem();
                     $fs->removeDirectory($realDir);
                     exit(130);
@@ -454,7 +454,7 @@ EOT
         if (function_exists('sapi_windows_set_ctrl_handler') && PHP_SAPI === 'cli') {
             @mkdir($directory, 0777, true);
             if ($realDir = realpath($directory)) {
-                sapi_windows_set_ctrl_handler(function () use ($realDir) {
+                sapi_windows_set_ctrl_handler(function () use ($realDir): void {
                     $fs = new Filesystem();
                     $fs->removeDirectory($realDir);
                     exit(130);

src/Composer/Command/DependsCommand.php

@@ -27,7 +27,7 @@ class DependsCommand extends BaseDependencyCommand
      *
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName('depends')

src/Composer/Command/FundCommand.php

@@ -33,7 +33,7 @@ class FundCommand extends BaseCommand
     /**
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this->setName('fund')
             ->setDescription('Discover how to help fund the maintenance of your dependencies.')

src/Composer/Command/GlobalCommand.php

@@ -29,7 +29,7 @@ class GlobalCommand extends BaseCommand
     /**
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName('global')

src/Composer/Command/HomeCommand.php

@@ -33,7 +33,7 @@ class HomeCommand extends BaseCommand
      *
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName('browse')
@@ -128,7 +128,7 @@ EOT
      * @param string $url
      * @return void
      */
-    private function openBrowser($url)
+    private function openBrowser($url): void
     {
         $url = ProcessExecutor::escape($url);
 

src/Composer/Command/LicensesCommand.php

@@ -34,7 +34,7 @@ class LicensesCommand extends BaseCommand
     /**
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName('licenses')

src/Composer/Command/OutdatedCommand.php

@@ -26,7 +26,7 @@ class OutdatedCommand extends BaseCommand
     /**
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName('outdated')

src/Composer/Command/ProhibitsCommand.php

@@ -27,7 +27,7 @@ class ProhibitsCommand extends BaseDependencyCommand
      *
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName('prohibits')

src/Composer/Command/ReinstallCommand.php

@@ -35,7 +35,7 @@ class ReinstallCommand extends BaseCommand
     /**
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName('reinstall')

src/Composer/Command/RunScriptCommand.php

@@ -47,7 +47,7 @@ class RunScriptCommand extends BaseCommand
     /**
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName('run-script')

src/Composer/Command/ScriptAliasCommand.php

@@ -42,7 +42,7 @@ class ScriptAliasCommand extends BaseCommand
     /**
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName($this->script)

src/Composer/Command/SearchCommand.php

@@ -33,7 +33,7 @@ class SearchCommand extends BaseCommand
     /**
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName('search')

src/Composer/Command/SelfUpdateCommand.php

@@ -42,7 +42,7 @@ class SelfUpdateCommand extends BaseCommand
     /**
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName('self-update')
@@ -346,7 +346,7 @@ TAGSPUBKEY
      * @return void
      * @throws \Exception
      */
-    protected function fetchKeys(IOInterface $io, Config $config)
+    protected function fetchKeys(IOInterface $io, Config $config): void
     {
         if (!$io->isInteractive()) {
             throw new \RuntimeException('Public keys can not be fetched in non-interactive mode, please run Composer interactively');
@@ -483,7 +483,7 @@ TAGSPUBKEY
      *
      * @return void
      */
-    protected function cleanBackups($rollbackDir, $except = null)
+    protected function cleanBackups($rollbackDir, $except = null): void
     {
         $finder = $this->getOldInstallationFinder($rollbackDir);
         $io = $this->getIO();

src/Composer/Command/StatusCommand.php

@@ -40,7 +40,7 @@ class StatusCommand extends BaseCommand
      * @return void
      * @throws \Symfony\Component\Console\Exception\InvalidArgumentException
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName('status')

src/Composer/Command/SuggestsCommand.php

@@ -26,7 +26,7 @@ class SuggestsCommand extends BaseCommand
     /**
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName('suggests')

src/Composer/Command/ValidateCommand.php

@@ -38,7 +38,7 @@ class ValidateCommand extends BaseCommand
      * configure
      * @return void
      */
-    protected function configure()
+    protected function configure(): void
     {
         $this
             ->setName('validate')
@@ -169,7 +169,7 @@ EOT
      *
      * @return void
      */
-    private function outputResult(IOInterface $io, $name, &$errors, &$warnings, $checkPublish = false, $publishErrors = array(), $checkLock = false, $lockErrors = array(), $printSchemaUrl = false)
+    private function outputResult(IOInterface $io, $name, &$errors, &$warnings, $checkPublish = false, $publishErrors = array(), $checkLock = false, $lockErrors = array(), $printSchemaUrl = false): void
     {
         $doPrintSchemaUrl = false;
 

src/Composer/Compiler.php

@@ -44,7 +44,7 @@ class Compiler
      *
      * @throws \RuntimeException
      */
-    public function compile($pharFile = 'composer.phar')
+    public function compile($pharFile = 'composer.phar'): void
     {
         if (file_exists($pharFile)) {
             unlink($pharFile);
@@ -217,7 +217,7 @@ class Compiler
      *
      * @return void
      */
-    private function addFile(\Phar $phar, \SplFileInfo $file, $strip = true)
+    private function addFile(\Phar $phar, \SplFileInfo $file, $strip = true): void
     {
         $path = $this->getRelativeFilePath($file);
         $content = file_get_contents($file);
@@ -245,7 +245,7 @@ class Compiler
     /**
      * @return void
      */
-    private function addComposerBin(\Phar $phar)
+    private function addComposerBin(\Phar $phar): void
     {
         $content = file_get_contents(__DIR__.'/../../bin/composer');
         $content = Preg::replace('{^#!/usr/bin/env php\s*}', '', $content);

src/Composer/Composer.php

@@ -144,7 +144,7 @@ class Composer
     /**
      * @return void
      */
-    public function setPackage(RootPackageInterface $package)
+    public function setPackage(RootPackageInterface $package): void
     {
         $this->package = $package;
     }
@@ -160,7 +160,7 @@ class Composer
     /**
      * @return void
      */
-    public function setConfig(Config $config)
+    public function setConfig(Config $config): void
     {
         $this->config = $config;
     }
@@ -176,7 +176,7 @@ class Composer
     /**
      * @return void
      */
-    public function setLocker(Locker $locker)
+    public function setLocker(Locker $locker): void
     {
         $this->locker = $locker;
     }
@@ -192,7 +192,7 @@ class Composer
     /**
      * @return void
      */
-    public function setLoop(Loop $loop)
+    public function setLoop(Loop $loop): void
     {
         $this->loop = $loop;
     }
@@ -208,7 +208,7 @@ class Composer
     /**
      * @return void
      */
-    public function setRepositoryManager(RepositoryManager $manager)
+    public function setRepositoryManager(RepositoryManager $manager): void
     {
         $this->repositoryManager = $manager;
     }
@@ -224,7 +224,7 @@ class Composer
     /**
      * @return void
      */
-    public function setDownloadManager(DownloadManager $manager)
+    public function setDownloadManager(DownloadManager $manager): void
     {
         $this->downloadManager = $manager;
     }
@@ -240,7 +240,7 @@ class Composer
     /**
      * @return void
      */
-    public function setArchiveManager(ArchiveManager $manager)
+    public function setArchiveManager(ArchiveManager $manager): void
     {
         $this->archiveManager = $manager;
     }
@@ -256,7 +256,7 @@ class Composer
     /**
      * @return void
      */
-    public function setInstallationManager(InstallationManager $manager)
+    public function setInstallationManager(InstallationManager $manager): void
     {
         $this->installationManager = $manager;
     }
@@ -272,7 +272,7 @@ class Composer
     /**
      * @return void
      */
-    public function setPluginManager(PluginManager $manager)
+    public function setPluginManager(PluginManager $manager): void
     {
         $this->pluginManager = $manager;
     }
@@ -288,7 +288,7 @@ class Composer
     /**
      * @return void
      */
-    public function setEventDispatcher(EventDispatcher $eventDispatcher)
+    public function setEventDispatcher(EventDispatcher $eventDispatcher): void
     {
         $this->eventDispatcher = $eventDispatcher;
     }
@@ -304,7 +304,7 @@ class Composer
     /**
      * @return void
      */
-    public function setAutoloadGenerator(AutoloadGenerator $autoloadGenerator)
+    public function setAutoloadGenerator(AutoloadGenerator $autoloadGenerator): void
     {
         $this->autoloadGenerator = $autoloadGenerator;
     }

src/Composer/Config.php

@@ -140,7 +140,7 @@ class Config
     /**
      * @return void
      */
-    public function setConfigSource(ConfigSourceInterface $source)
+    public function setConfigSource(ConfigSourceInterface $source): void
     {
         $this->configSource = $source;
     }
@@ -156,7 +156,7 @@ class Config
     /**
      * @return void
      */
-    public function setAuthConfigSource(ConfigSourceInterface $source)
+    public function setAuthConfigSource(ConfigSourceInterface $source): void
     {
         $this->authConfigSource = $source;
     }
@@ -177,7 +177,7 @@ class Config
      *
      * @return void
      */
-    public function merge($config, $source = self::SOURCE_UNKNOWN)
+    public function merge($config, $source = self::SOURCE_UNKNOWN): void
     {
         // override defaults with given config
         if (!empty($config['config']) && is_array($config['config'])) {
@@ -471,7 +471,7 @@ class Config
      *
      * @return void
      */
-    private function setSourceOfConfigValue($configValue, $path, $source)
+    private function setSourceOfConfigValue($configValue, $path, $source): void
     {
         $this->sourceOfConfigValue[$path] = $source;
 
@@ -563,7 +563,7 @@ class Config
      *
      * @return void
      */
-    private function disableRepoByName($name)
+    private function disableRepoByName($name): void
     {
         if (isset($this->repositories[$name])) {
             unset($this->repositories[$name]);
@@ -580,7 +580,7 @@ class Config
      *
      * @return void
      */
-    public function prohibitUrlByConfig($url, IOInterface $io = null)
+    public function prohibitUrlByConfig($url, IOInterface $io = null): void
     {
         // Return right away if the URL is malformed or custom (see issue #5173)
         if (false === filter_var($url, FILTER_VALIDATE_URL)) {
@@ -626,7 +626,7 @@ class Config
      *
      * @return void
      */
-    public static function disableProcessTimeout()
+    public static function disableProcessTimeout(): void
     {
         // Override global timeout set earlier by environment or config
         ProcessExecutor::setTimeout(0);

src/Composer/Console/GithubActionError.php

@@ -34,7 +34,7 @@ final class GithubActionError
      *
      * @return void
      */
-    public function emit($message, $file = null, $line = null)
+    public function emit($message, $file = null, $line = null): void
     {
         if (Platform::getEnv('GITHUB_ACTIONS') && !Platform::getEnv('COMPOSER_TESTS_ARE_RUNNING')) {
             $message = $this->escapeData($message);

src/Composer/DependencyResolver/Decisions.php

@@ -43,7 +43,7 @@ class Decisions implements \Iterator, \Countable
      * @param int $level
      * @return void
      */
-    public function decide($literal, $level, Rule $why)
+    public function decide($literal, $level, Rule $why): void
     {
         $this->addDecision($literal, $level);
         $this->decisionQueue[] = array(
@@ -177,7 +177,7 @@ class Decisions implements \Iterator, \Countable
     /**
      * @return void
      */
-    public function reset()
+    public function reset(): void
     {
         while ($decision = array_pop($this->decisionQueue)) {
             $this->decisionMap[abs($decision[self::DECISION_LITERAL])] = 0;
@@ -188,7 +188,7 @@ class Decisions implements \Iterator, \Countable
      * @param int $offset
      * @return void
      */
-    public function resetToOffset($offset)
+    public function resetToOffset($offset): void
     {
         while (\count($this->decisionQueue) > $offset + 1) {
             $decision = array_pop($this->decisionQueue);
@@ -199,7 +199,7 @@ class Decisions implements \Iterator, \Countable
     /**
      * @return void
      */
-    public function revertLast()
+    public function revertLast(): void
     {
         $this->decisionMap[abs($this->lastLiteral())] = 0;
         array_pop($this->decisionQueue);
@@ -252,7 +252,7 @@ class Decisions implements \Iterator, \Countable
      * @param int $level
      * @return void
      */
-    protected function addDecision($literal, $level)
+    protected function addDecision($literal, $level): void
     {
         $packageId = abs($literal);
 

src/Composer/DependencyResolver/LockTransaction.php

@@ -62,7 +62,7 @@ class LockTransaction extends Transaction
     /**
      * @return void
      */
-    public function setResultPackages(Pool $pool, Decisions $decisions)
+    public function setResultPackages(Pool $pool, Decisions $decisions): void
     {
         $this->resultPackages = array('all' => array(), 'non-dev' => array(), 'dev' => array());
         foreach ($decisions as $i => $decision) {
@@ -82,7 +82,7 @@ class LockTransaction extends Transaction
     /**
      * @return void
      */
-    public function setNonDevPackages(LockTransaction $extractionResult)
+    public function setNonDevPackages(LockTransaction $extractionResult): void
     {
         $packages = $extractionResult->getNewLockPackages(false);
 

src/Composer/DependencyResolver/MultiConflictRule.php

@@ -86,7 +86,7 @@ class MultiConflictRule extends Rule
      * @return never
      * @throws \RuntimeException
      */
-    public function disable()
+    public function disable(): void
     {
         throw new \RuntimeException("Disabling multi conflict rules is not possible. Please contact composer at https://github.com/composer/composer to let us debug what lead to this situation.");
     }

src/Composer/DependencyResolver/Pool.php

@@ -93,7 +93,7 @@ class Pool implements \Countable
      * @param BasePackage[] $packages
      * @return void
      */
-    private function setPackages(array $packages)
+    private function setPackages(array $packages): void
     {
         $id = 1;
 

src/Composer/DependencyResolver/PoolBuilder.php

@@ -298,7 +298,7 @@ class PoolBuilder
      * @param string $name
      * @return void
      */
-    private function markPackageNameForLoading(Request $request, $name, ConstraintInterface $constraint)
+    private function markPackageNameForLoading(Request $request, $name, ConstraintInterface $constraint): void
     {
         // Skip platform requires at this stage
         if (PlatformRepository::isPlatformPackage($name)) {
@@ -357,7 +357,7 @@ class PoolBuilder
      * @param RepositoryInterface[] $repositories
      * @return void
      */
-    private function loadPackagesMarkedForLoading(Request $request, array $repositories)
+    private function loadPackagesMarkedForLoading(Request $request, array $repositories): void
     {
         foreach ($this->packagesToLoad as $name => $constraint) {
             $this->loadedPackages[$name] = $constraint;
@@ -394,7 +394,7 @@ class PoolBuilder
      * @param RepositoryInterface[] $repositories
      * @return void
      */
-    private function loadPackage(Request $request, array $repositories, BasePackage $package, $propagateUpdate)
+    private function loadPackage(Request $request, array $repositories, BasePackage $package, $propagateUpdate): void
     {
         $index = $this->indexCounter++;
         $this->packages[$index] = $package;
@@ -568,7 +568,7 @@ class PoolBuilder
     /**
      * @return void
      */
-    private function warnAboutNonMatchingUpdateAllowList(Request $request)
+    private function warnAboutNonMatchingUpdateAllowList(Request $request): void
     {
         foreach ($this->updateAllowList as $pattern => $void) {
             $patternRegexp = BasePackage::packageNameToRegexp($pattern);
@@ -600,7 +600,7 @@ class PoolBuilder
      * @param string $name
      * @return void
      */
-    private function unlockPackage(Request $request, array $repositories, $name)
+    private function unlockPackage(Request $request, array $repositories, $name): void
     {
         foreach ($this->skippedLoad[$name] as $packageOrReplacer) {
             // if we unfixed a replaced package name, we also need to unfix the replacer itself
@@ -666,7 +666,7 @@ class PoolBuilder
      * @param int $index
      * @return void
      */
-    private function removeLoadedPackage(Request $request, array $repositories, BasePackage $package, $index)
+    private function removeLoadedPackage(Request $request, array $repositories, BasePackage $package, $index): void
     {
         $repoIndex = array_search($package->getRepository(), $repositories, true);
 

src/Composer/DependencyResolver/PoolOptimizer.php

@@ -99,7 +99,7 @@ class PoolOptimizer
     /**
      * @return void
      */
-    private function prepare(Request $request, Pool $pool)
+    private function prepare(Request $request, Pool $pool): void
     {
         $irremovablePackageConstraintGroups = array();
 
@@ -155,7 +155,7 @@ class PoolOptimizer
     /**
      * @return void
      */
-    private function markPackageIrremovable(BasePackage $package)
+    private function markPackageIrremovable(BasePackage $package): void
     {
         $this->irremovablePackages[$package->id] = true;
         if ($package instanceof AliasPackage) {
@@ -193,7 +193,7 @@ class PoolOptimizer
     /**
      * @return void
      */
-    private function optimizeByIdenticalDependencies(Request $request, Pool $pool)
+    private function optimizeByIdenticalDependencies(Request $request, Pool $pool): void
     {
         $identicalDefinitionsPerPackage = array();
         $packageIdenticalDefinitionLookup = array();
@@ -322,7 +322,7 @@ class PoolOptimizer
      * @param int $id
      * @return void
      */
-    private function markPackageForRemoval($id)
+    private function markPackageForRemoval($id): void
     {
         // We are not allowed to remove packages if they have been marked as irremovable
         if (isset($this->irremovablePackages[$id])) {
@@ -337,7 +337,7 @@ class PoolOptimizer
      * @param array<int, array<string, array{groupHash: string, dependencyHash: string}>> $packageIdenticalDefinitionLookup
      * @return void
      */
-    private function keepPackage(BasePackage $package, $identicalDefinitionsPerPackage, $packageIdenticalDefinitionLookup)
+    private function keepPackage(BasePackage $package, $identicalDefinitionsPerPackage, $packageIdenticalDefinitionLookup): void
     {
         unset($this->packagesToRemove[$package->id]);
 
@@ -389,7 +389,7 @@ class PoolOptimizer
      *
      * @return void
      */
-    private function optimizeImpossiblePackagesAway(Request $request, Pool $pool)
+    private function optimizeImpossiblePackagesAway(Request $request, Pool $pool): void
     {
         if (count($request->getLockedPackages()) === 0) {
             return;

src/Composer/DependencyResolver/Request.php

@@ -64,7 +64,7 @@ class Request
      * @param string $packageName
      * @return void
      */
-    public function requireName($packageName, ConstraintInterface $constraint = null)
+    public function requireName($packageName, ConstraintInterface $constraint = null): void
     {
         $packageName = strtolower($packageName);
 
@@ -85,7 +85,7 @@ class Request
      *
      * @return void
      */
-    public function fixPackage(BasePackage $package)
+    public function fixPackage(BasePackage $package): void
     {
         $this->fixedPackages[spl_object_hash($package)] = $package;
     }
@@ -102,7 +102,7 @@ class Request
      *
      * @return void
      */
-    public function lockPackage(BasePackage $package)
+    public function lockPackage(BasePackage $package): void
     {
         $this->lockedPackages[spl_object_hash($package)] = $package;
     }
@@ -116,7 +116,7 @@ class Request
      *
      * @return void
      */
-    public function fixLockedPackage(BasePackage $package)
+    public function fixLockedPackage(BasePackage $package): void
     {
         $this->fixedPackages[spl_object_hash($package)] = $package;
         $this->fixedLockedPackages[spl_object_hash($package)] = $package;
@@ -125,7 +125,7 @@ class Request
     /**
      * @return void
      */
-    public function unlockPackage(BasePackage $package)
+    public function unlockPackage(BasePackage $package): void
     {
         unset($this->lockedPackages[spl_object_hash($package)]);
     }
@@ -135,7 +135,7 @@ class Request
      * @param false|self::UPDATE_* $updateAllowTransitiveDependencies
      * @return void
      */
-    public function setUpdateAllowList($updateAllowList, $updateAllowTransitiveDependencies)
+    public function setUpdateAllowList($updateAllowList, $updateAllowTransitiveDependencies): void
     {
         $this->updateAllowList = $updateAllowList;
         $this->updateAllowTransitiveDependencies = $updateAllowTransitiveDependencies;

src/Composer/DependencyResolver/Rule.php

@@ -128,7 +128,7 @@ abstract class Rule
      * @param RuleSet::TYPE_* $type
      * @return void
      */
-    public function setType($type)
+    public function setType($type): void
     {
         $this->bitfield = ($this->bitfield & ~(255 << self::BITFIELD_TYPE)) | ((255 & $type) << self::BITFIELD_TYPE);
     }
@@ -144,7 +144,7 @@ abstract class Rule
     /**
      * @return void
      */
-    public function disable()
+    public function disable(): void
     {
         $this->bitfield = ($this->bitfield & ~(255 << self::BITFIELD_DISABLED)) | (1 << self::BITFIELD_DISABLED);
     }
@@ -152,7 +152,7 @@ abstract class Rule
     /**
      * @return void
      */
-    public function enable()
+    public function enable(): void
     {
         $this->bitfield &= ~(255 << self::BITFIELD_DISABLED);
     }

src/Composer/DependencyResolver/RuleSet.php

@@ -59,7 +59,7 @@ class RuleSet implements \IteratorAggregate, \Countable
      * @param self::TYPE_* $type
      * @return void
      */
-    public function add(Rule $rule, $type)
+    public function add(Rule $rule, $type): void
     {
         if (!isset(self::$types[$type])) {
             throw new \OutOfBoundsException('Unknown rule type: ' . $type);

src/Composer/DependencyResolver/RuleSetGenerator.php

@@ -152,7 +152,7 @@ class RuleSetGenerator
      *
      * @return void
      */
-    private function addRule($type, Rule $newRule = null)
+    private function addRule($type, Rule $newRule = null): void
     {
         if (!$newRule) {
             return;
@@ -164,7 +164,7 @@ class RuleSetGenerator
     /**
      * @return void
      */
-    protected function addRulesForPackage(BasePackage $package, PlatformRequirementFilterInterface $platformRequirementFilter)
+    protected function addRulesForPackage(BasePackage $package, PlatformRequirementFilterInterface $platformRequirementFilter): void
     {
         /** @var \SplQueue<BasePackage> */
         $workQueue = new \SplQueue;
@@ -218,7 +218,7 @@ class RuleSetGenerator
     /**
      * @return void
      */
-    protected function addConflictRules(PlatformRequirementFilterInterface $platformRequirementFilter)
+    protected function addConflictRules(PlatformRequirementFilterInterface $platformRequirementFilter): void
     {
         /** @var BasePackage $package */
         foreach ($this->addedMap as $package) {
@@ -259,7 +259,7 @@ class RuleSetGenerator
     /**
      * @return void
      */
-    protected function addRulesForRequest(Request $request, PlatformRequirementFilterInterface $platformRequirementFilter)
+    protected function addRulesForRequest(Request $request, PlatformRequirementFilterInterface $platformRequirementFilter): void
     {
         foreach ($request->getFixedPackages() as $package) {
             if ($package->id == -1) {
@@ -305,7 +305,7 @@ class RuleSetGenerator
     /**
      * @return void
      */
-    protected function addRulesForRootAliases(PlatformRequirementFilterInterface $platformRequirementFilter)
+    protected function addRulesForRootAliases(PlatformRequirementFilterInterface $platformRequirementFilter): void
     {
         foreach ($this->pool->getPackages() as $package) {
             // ensure that rules for root alias packages and aliases of packages which were loaded are also loaded

src/Composer/DependencyResolver/RuleWatchChain.php

@@ -29,7 +29,7 @@ class RuleWatchChain extends \SplDoublyLinkedList
      * @param int $offset The offset to seek to.
      * @return void
      */
-    public function seek($offset)
+    public function seek($offset): void
     {
         $this->rewind();
         for ($i = 0; $i < $offset; $i++, $this->next());
@@ -45,7 +45,7 @@ class RuleWatchChain extends \SplDoublyLinkedList
      *
      * @return void
      */
-    public function remove()
+    public function remove(): void
     {
         $offset = $this->key();
         $this->offsetUnset($offset);

src/Composer/DependencyResolver/RuleWatchGraph.php

@@ -40,7 +40,7 @@ class RuleWatchGraph
      * @param RuleWatchNode $node The rule node to be inserted into the graph
      * @return void
      */
-    public function insert(RuleWatchNode $node)
+    public function insert(RuleWatchNode $node): void
     {
         if ($node->getRule()->isAssertion()) {
             return;
@@ -156,7 +156,7 @@ class RuleWatchGraph
      * @param RuleWatchNode $node        The rule node to be moved
      * @return void
      */
-    protected function moveWatch($fromLiteral, $toLiteral, RuleWatchNode $node)
+    protected function moveWatch($fromLiteral, $toLiteral, RuleWatchNode $node): void
     {
         if (!isset($this->watchChains[$toLiteral])) {
             $this->watchChains[$toLiteral] = new RuleWatchChain;

src/Composer/DependencyResolver/RuleWatchNode.php

@@ -54,7 +54,7 @@ class RuleWatchNode
      * @param Decisions $decisions The decisions made so far by the solver
      * @return void
      */
-    public function watch2OnHighest(Decisions $decisions)
+    public function watch2OnHighest(Decisions $decisions): void
     {
         $literals = $this->rule->getLiterals();
 
@@ -107,7 +107,7 @@ class RuleWatchNode
      * @param int $to   The literal to be watched now
      * @return void
      */
-    public function moveWatch($from, $to)
+    public function moveWatch($from, $to): void
     {
         if ($this->watch1 == $from) {
             $this->watch1 = $to;

src/Composer/DependencyResolver/Solver.php

@@ -86,7 +86,7 @@ class Solver
     /**
      * @return void
      */
-    private function makeAssertionRuleDecisions()
+    private function makeAssertionRuleDecisions(): void
     {
         $decisionStart = \count($this->decisions) - 1;
 
@@ -159,7 +159,7 @@ class Solver
     /**
      * @return void
      */
-    protected function setupFixedMap(Request $request)
+    protected function setupFixedMap(Request $request): void
     {
         $this->fixedMap = array();
         foreach ($request->getFixedPackages() as $package) {
@@ -170,7 +170,7 @@ class Solver
     /**
      * @return void
      */
-    protected function checkForRootRequireProblems(Request $request, PlatformRequirementFilterInterface $platformRequirementFilter)
+    protected function checkForRootRequireProblems(Request $request, PlatformRequirementFilterInterface $platformRequirementFilter): void
     {
         foreach ($request->getRequires() as $packageName => $constraint) {
             if ($platformRequirementFilter->isIgnored($packageName)) {
@@ -261,7 +261,7 @@ class Solver
      *
      * @return void
      */
-    private function revert($level)
+    private function revert($level): void
     {
         while (!$this->decisions->isEmpty()) {
             $literal = $this->decisions->lastLiteral();
@@ -518,7 +518,7 @@ class Solver
      * @param array<string, true> $ruleSeen
      * @return void
      */
-    private function analyzeUnsolvableRule(Problem $problem, Rule $conflictRule, array &$ruleSeen)
+    private function analyzeUnsolvableRule(Problem $problem, Rule $conflictRule, array &$ruleSeen): void
     {
         $why = spl_object_hash($conflictRule);
         $ruleSeen[$why] = true;
@@ -606,7 +606,7 @@ class Solver
      *
      * @return void
      */
-    private function enableDisableLearnedRules()
+    private function enableDisableLearnedRules(): void
     {
         foreach ($this->rules->getIteratorFor(RuleSet::TYPE_LEARNED) as $rule) {
             $why = $this->learnedWhy[spl_object_hash($rule)];
@@ -631,7 +631,7 @@ class Solver
     /**
      * @return void
      */
-    private function runSat()
+    private function runSat(): void
     {
         $this->propagateIndex = 0;
 

src/Composer/DependencyResolver/Transaction.php

@@ -69,7 +69,7 @@ class Transaction
      * @param PackageInterface[] $resultPackages
      * @return void
      */
-    private function setResultPackageMaps($resultPackages)
+    private function setResultPackageMaps($resultPackages): void
     {
         $packageSort = function (PackageInterface $a, PackageInterface $b) {
             // sort alias packages by the same name behind their non alias version

src/Composer/Downloader/GzipDownloader.php

@@ -59,7 +59,7 @@ class GzipDownloader extends ArchiveDownloader
      *
      * @return void
      */
-    private function extractUsingExt($file, $targetFilepath)
+    private function extractUsingExt($file, $targetFilepath): void
     {
         $archiveFile = gzopen($file, 'rb');
         $targetFile = fopen($targetFilepath, 'wb');

src/Composer/Downloader/PerforceDownloader.php

@@ -73,7 +73,7 @@ class PerforceDownloader extends VcsDownloader
      *
      * @return void
      */
-    public function initPerforce(PackageInterface $package, $path, $url)
+    public function initPerforce(PackageInterface $package, $path, $url): void
     {
         if (!empty($this->perforce)) {
             $this->perforce->initializePath($path);
@@ -126,7 +126,7 @@ class PerforceDownloader extends VcsDownloader
     /**
      * @return void
      */
-    public function setPerforce(Perforce $perforce)
+    public function setPerforce(Perforce $perforce): void
     {
         $this->perforce = $perforce;
     }

src/Composer/Downloader/TransportException.php

@@ -31,7 +31,7 @@ class TransportException extends \RuntimeException
      *
      * @return void
      */
-    public function setHeaders($headers)
+    public function setHeaders($headers): void
     {
         $this->headers = $headers;
     }
@@ -49,7 +49,7 @@ class TransportException extends \RuntimeException
      *
      * @return void
      */
-    public function setResponse($response)
+    public function setResponse($response): void
     {
         $this->response = $response;
     }
@@ -67,7 +67,7 @@ class TransportException extends \RuntimeException
      *
      * @return void
      */
-    public function setStatusCode($statusCode)
+    public function setStatusCode($statusCode): void
     {
         $this->statusCode = $statusCode;
     }
@@ -93,7 +93,7 @@ class TransportException extends \RuntimeException
      *
      * @return void
      */
-    public function setResponseInfo(array $responseInfo)
+    public function setResponseInfo(array $responseInfo): void
     {
         $this->responseInfo = $responseInfo;
     }

src/Composer/IO/BufferIO.php

@@ -77,7 +77,7 @@ class BufferIO extends ConsoleIO
      *
      * @return void
      */
-    public function setUserInputs(array $inputs)
+    public function setUserInputs(array $inputs): void
     {
         if (!$this->input instanceof StreamableInputInterface) {
             throw new \RuntimeException('Setting the user inputs requires at least the version 3.2 of the symfony/console component.');

src/Composer/IO/NullIO.php

@@ -62,28 +62,28 @@ class NullIO extends BaseIO
     /**
      * @inheritDoc
      */
-    public function write($messages, $newline = true, $verbosity = self::NORMAL)
+    public function write($messages, $newline = true, $verbosity = self::NORMAL): void
     {
     }
 
     /**
      * @inheritDoc
      */
-    public function writeError($messages, $newline = true, $verbosity = self::NORMAL)
+    public function writeError($messages, $newline = true, $verbosity = self::NORMAL): void
     {
     }
 
     /**
      * @inheritDoc
      */
-    public function overwrite($messages, $newline = true, $size = 80, $verbosity = self::NORMAL)
+    public function overwrite($messages, $newline = true, $size = 80, $verbosity = self::NORMAL): void
     {
     }
 
     /**
      * @inheritDoc
      */
-    public function overwriteError($messages, $newline = true, $size = 80, $verbosity = self::NORMAL)
+    public function overwriteError($messages, $newline = true, $size = 80, $verbosity = self::NORMAL): void
     {
     }
 

src/Composer/Installer.php

@@ -919,7 +919,7 @@ class Installer
      *
      * @return void
      */
-    private function requirePackagesForUpdate(Request $request, LockArrayRepository $lockedRepository = null, $includeDevRequires = true)
+    private function requirePackagesForUpdate(Request $request, LockArrayRepository $lockedRepository = null, $includeDevRequires = true): void
     {
         // if we're updating mirrors we want to keep exactly the same versions installed which are in the lock file, but we want current remote metadata
         if ($this->updateMirrors) {
@@ -988,7 +988,7 @@ class Installer
      *
      * @return void
      */
-    private function mockLocalRepositories(RepositoryManager $rm)
+    private function mockLocalRepositories(RepositoryManager $rm): void
     {
         $packages = array();
         foreach ($rm->getLocalRepository()->getPackages() as $package) {

src/Composer/Installer/BinaryInstaller.php

@@ -62,7 +62,7 @@ class BinaryInstaller
      *
      * @return void
      */
-    public function installBinaries(PackageInterface $package, $installPath, $warnOnOverwrite = true)
+    public function installBinaries(PackageInterface $package, $installPath, $warnOnOverwrite = true): void
     {
         $binaries = $this->getBinaries($package);
         if (!$binaries) {
@@ -120,7 +120,7 @@ class BinaryInstaller
     /**
      * @return void
      */
-    public function removeBinaries(PackageInterface $package)
+    public function removeBinaries(PackageInterface $package): void
     {
         $this->initializeBinDir();
 
@@ -180,7 +180,7 @@ class BinaryInstaller
      *
      * @return void
      */
-    protected function installFullBinaries($binPath, $link, $bin, PackageInterface $package)
+    protected function installFullBinaries($binPath, $link, $bin, PackageInterface $package): void
     {
         // add unixy support for cygwin and similar environments
         if ('.bat' !== substr($binPath, -4)) {
@@ -202,7 +202,7 @@ class BinaryInstaller
      *
      * @return void
      */
-    protected function installUnixyProxyBinaries($binPath, $link)
+    protected function installUnixyProxyBinaries($binPath, $link): void
     {
         file_put_contents($link, $this->generateUnixyProxyCode($binPath, $link));
         Silencer::call('chmod', $link, 0777 & ~umask());
@@ -211,7 +211,7 @@ class BinaryInstaller
     /**
      * @return void
      */
-    protected function initializeBinDir()
+    protected function initializeBinDir(): void
     {
         $this->filesystem->ensureDirectoryExists($this->binDir);
         $this->binDir = realpath($this->binDir);

src/Composer/Installer/SuggestedPackagesReporter.php

@@ -104,7 +104,7 @@ class SuggestedPackagesReporter
      * @param  PackageInterface|null    $onlyDependentsOf If passed in, only the suggestions from direct dependents of that package, or from the package itself, will be shown
      * @return void
      */
-    public function output($mode, InstalledRepository $installedRepo = null, PackageInterface $onlyDependentsOf = null)
+    public function output($mode, InstalledRepository $installedRepo = null, PackageInterface $onlyDependentsOf = null): void
     {
         $suggestedPackages = $this->getFilteredSuggestions($installedRepo, $onlyDependentsOf);
 
@@ -170,7 +170,7 @@ class SuggestedPackagesReporter
      * @param  PackageInterface|null    $onlyDependentsOf If passed in, only the suggestions from direct dependents of that package, or from the package itself, will be shown
      * @return void
      */
-    public function outputMinimalistic(InstalledRepository $installedRepo = null, PackageInterface $onlyDependentsOf = null)
+    public function outputMinimalistic(InstalledRepository $installedRepo = null, PackageInterface $onlyDependentsOf = null): void
     {
         $suggestedPackages = $this->getFilteredSuggestions($installedRepo, $onlyDependentsOf);
         if ($suggestedPackages) {

src/Composer/Package/AliasPackage.php

@@ -249,7 +249,7 @@ class AliasPackage extends BasePackage
         return $this->aliasOf->getExtra();
     }
 
-    public function setInstallationSource($type)
+    public function setInstallationSource($type): void
     {
         $this->aliasOf->setInstallationSource($type);
     }
@@ -279,12 +279,12 @@ class AliasPackage extends BasePackage
         return $this->aliasOf->getSourceReference();
     }
 
-    public function setSourceReference($reference)
+    public function setSourceReference($reference): void
     {
         $this->aliasOf->setSourceReference($reference);
     }
 
-    public function setSourceMirrors($mirrors)
+    public function setSourceMirrors($mirrors): void
     {
         $this->aliasOf->setSourceMirrors($mirrors);
     }
@@ -314,7 +314,7 @@ class AliasPackage extends BasePackage
         return $this->aliasOf->getDistReference();
     }
 
-    public function setDistReference($reference)
+    public function setDistReference($reference): void
     {
         $this->aliasOf->setDistReference($reference);
     }
@@ -324,7 +324,7 @@ class AliasPackage extends BasePackage
         return $this->aliasOf->getDistSha1Checksum();
     }
 
-    public function setTransportOptions(array $options)
+    public function setTransportOptions(array $options): void
     {
         $this->aliasOf->setTransportOptions($options);
     }
@@ -334,7 +334,7 @@ class AliasPackage extends BasePackage
         return $this->aliasOf->getTransportOptions();
     }
 
-    public function setDistMirrors($mirrors)
+    public function setDistMirrors($mirrors): void
     {
         $this->aliasOf->setDistMirrors($mirrors);
     }
@@ -384,17 +384,17 @@ class AliasPackage extends BasePackage
         return $this->aliasOf->isDefaultBranch();
     }
 
-    public function setDistUrl($url)
+    public function setDistUrl($url): void
     {
         $this->aliasOf->setDistUrl($url);
     }
 
-    public function setDistType($type)
+    public function setDistType($type): void
     {
         $this->aliasOf->setDistType($type);
     }
 
-    public function setSourceDistReferences($reference)
+    public function setSourceDistReferences($reference): void
     {
         $this->aliasOf->setSourceDistReferences($reference);
     }

src/Composer/Package/Archiver/ArchivableFilesFilter.php

@@ -40,7 +40,7 @@ class ArchivableFilesFilter extends FilterIterator
      *
      * @return void
      */
-    public function addEmptyDir(PharData $phar, $sources)
+    public function addEmptyDir(PharData $phar, $sources): void
     {
         foreach ($this->dirs as $filepath) {
             $localname = str_replace($sources . "/", '', $filepath);

src/Composer/Package/Archiver/ArchiveManager.php

@@ -56,7 +56,7 @@ class ArchiveManager
      *
      * @return void
      */
-    public function addArchiver(ArchiverInterface $archiver)
+    public function addArchiver(ArchiverInterface $archiver): void
     {
         $this->archivers[] = $archiver;
     }

src/Composer/Package/Comparer/Comparer.php

@@ -31,7 +31,7 @@ class Comparer
      *
      * @return void
      */
-    public function setSource($source)
+    public function setSource($source): void
     {
         $this->source = $source;
     }
@@ -41,7 +41,7 @@ class Comparer
      *
      * @return void
      */
-    public function setUpdate($update)
+    public function setUpdate($update): void
     {
         $this->update = $update;
     }
@@ -82,7 +82,7 @@ class Comparer
     /**
      * @return void
      */
-    public function doCompare()
+    public function doCompare(): void
     {
         $source = array();
         $destination = array();

src/Composer/Package/CompleteAliasPackage.php

@@ -45,7 +45,7 @@ class CompleteAliasPackage extends AliasPackage implements CompletePackageInterf
         return $this->aliasOf->getScripts();
     }
 
-    public function setScripts(array $scripts)
+    public function setScripts(array $scripts): void
     {
         $this->aliasOf->setScripts($scripts);
     }
@@ -55,7 +55,7 @@ class CompleteAliasPackage extends AliasPackage implements CompletePackageInterf
         return $this->aliasOf->getRepositories();
     }
 
-    public function setRepositories(array $repositories)
+    public function setRepositories(array $repositories): void
     {
         $this->aliasOf->setRepositories($repositories);
     }
@@ -65,7 +65,7 @@ class CompleteAliasPackage extends AliasPackage implements CompletePackageInterf
         return $this->aliasOf->getLicense();
     }
 
-    public function setLicense(array $license)
+    public function setLicense(array $license): void
     {
         $this->aliasOf->setLicense($license);
     }
@@ -75,7 +75,7 @@ class CompleteAliasPackage extends AliasPackage implements CompletePackageInterf
         return $this->aliasOf->getKeywords();
     }
 
-    public function setKeywords(array $keywords)
+    public function setKeywords(array $keywords): void
     {
         $this->aliasOf->setKeywords($keywords);
     }
@@ -85,7 +85,7 @@ class CompleteAliasPackage extends AliasPackage implements CompletePackageInterf
         return $this->aliasOf->getDescription();
     }
 
-    public function setDescription($description)
+    public function setDescription($description): void
     {
         $this->aliasOf->setDescription($description);
     }
@@ -95,7 +95,7 @@ class CompleteAliasPackage extends AliasPackage implements CompletePackageInterf
         return $this->aliasOf->getHomepage();
     }
 
-    public function setHomepage($homepage)
+    public function setHomepage($homepage): void
     {
         $this->aliasOf->setHomepage($homepage);
     }
@@ -105,7 +105,7 @@ class CompleteAliasPackage extends AliasPackage implements CompletePackageInterf
         return $this->aliasOf->getAuthors();
     }
 
-    public function setAuthors(array $authors)
+    public function setAuthors(array $authors): void
     {
         $this->aliasOf->setAuthors($authors);
     }
@@ -115,7 +115,7 @@ class CompleteAliasPackage extends AliasPackage implements CompletePackageInterf
         return $this->aliasOf->getSupport();
     }
 
-    public function setSupport(array $support)
+    public function setSupport(array $support): void
     {
         $this->aliasOf->setSupport($support);
     }
@@ -125,7 +125,7 @@ class CompleteAliasPackage extends AliasPackage implements CompletePackageInterf
         return $this->aliasOf->getFunding();
     }
 
-    public function setFunding(array $funding)
+    public function setFunding(array $funding): void
     {
         $this->aliasOf->setFunding($funding);
     }
@@ -140,7 +140,7 @@ class CompleteAliasPackage extends AliasPackage implements CompletePackageInterf
         return $this->aliasOf->getReplacementPackage();
     }
 
-    public function setAbandoned($abandoned)
+    public function setAbandoned($abandoned): void
     {
         $this->aliasOf->setAbandoned($abandoned);
     }
@@ -150,7 +150,7 @@ class CompleteAliasPackage extends AliasPackage implements CompletePackageInterf
         return $this->aliasOf->getArchiveName();
     }
 
-    public function setArchiveName($name)
+    public function setArchiveName($name): void
     {
         $this->aliasOf->setArchiveName($name);
     }
@@ -160,7 +160,7 @@ class CompleteAliasPackage extends AliasPackage implements CompletePackageInterf
         return $this->aliasOf->getArchiveExcludes();
     }
 
-    public function setArchiveExcludes(array $excludes)
+    public function setArchiveExcludes(array $excludes): void
     {
         $this->aliasOf->setArchiveExcludes($excludes);
     }

src/Composer/Package/RootAliasPackage.php

@@ -91,7 +91,7 @@ class RootAliasPackage extends CompleteAliasPackage implements RootPackageInterf
     /**
      * @inheritDoc
      */
-    public function setRequires(array $require)
+    public function setRequires(array $require): void
     {
         $this->requires = $this->replaceSelfVersionDependencies($require, Link::TYPE_REQUIRE);
 
@@ -101,7 +101,7 @@ class RootAliasPackage extends CompleteAliasPackage implements RootPackageInterf
     /**
      * @inheritDoc
      */
-    public function setDevRequires(array $devRequire)
+    public function setDevRequires(array $devRequire): void
     {
         $this->devRequires = $this->replaceSelfVersionDependencies($devRequire, Link::TYPE_DEV_REQUIRE);
 
@@ -111,7 +111,7 @@ class RootAliasPackage extends CompleteAliasPackage implements RootPackageInterf
     /**
      * @inheritDoc
      */
-    public function setConflicts(array $conflicts)
+    public function setConflicts(array $conflicts): void
     {
         $this->conflicts = $this->replaceSelfVersionDependencies($conflicts, Link::TYPE_CONFLICT);
         $this->aliasOf->setConflicts($conflicts);
@@ -120,7 +120,7 @@ class RootAliasPackage extends CompleteAliasPackage implements RootPackageInterf
     /**
      * @inheritDoc
      */
-    public function setProvides(array $provides)
+    public function setProvides(array $provides): void
     {
         $this->provides = $this->replaceSelfVersionDependencies($provides, Link::TYPE_PROVIDE);
         $this->aliasOf->setProvides($provides);
@@ -129,7 +129,7 @@ class RootAliasPackage extends CompleteAliasPackage implements RootPackageInterf
     /**
      * @inheritDoc
      */
-    public function setReplaces(array $replaces)
+    public function setReplaces(array $replaces): void
     {
         $this->replaces = $this->replaceSelfVersionDependencies($replaces, Link::TYPE_REPLACE);
         $this->aliasOf->setReplaces($replaces);
@@ -138,7 +138,7 @@ class RootAliasPackage extends CompleteAliasPackage implements RootPackageInterf
     /**
      * @inheritDoc
      */
-    public function setAutoload(array $autoload)
+    public function setAutoload(array $autoload): void
     {
         $this->aliasOf->setAutoload($autoload);
     }
@@ -146,7 +146,7 @@ class RootAliasPackage extends CompleteAliasPackage implements RootPackageInterf
     /**
      * @inheritDoc
      */
-    public function setDevAutoload(array $devAutoload)
+    public function setDevAutoload(array $devAutoload): void
     {
         $this->aliasOf->setDevAutoload($devAutoload);
     }
@@ -154,7 +154,7 @@ class RootAliasPackage extends CompleteAliasPackage implements RootPackageInterf
     /**
      * @inheritDoc
      */
-    public function setStabilityFlags(array $stabilityFlags)
+    public function setStabilityFlags(array $stabilityFlags): void
     {
         $this->aliasOf->setStabilityFlags($stabilityFlags);
     }
@@ -162,7 +162,7 @@ class RootAliasPackage extends CompleteAliasPackage implements RootPackageInterf
     /**
      * @inheritDoc
      */
-    public function setMinimumStability($minimumStability)
+    public function setMinimumStability($minimumStability): void
     {
         $this->aliasOf->setMinimumStability($minimumStability);
     }
@@ -170,7 +170,7 @@ class RootAliasPackage extends CompleteAliasPackage implements RootPackageInterf
     /**
      * @inheritDoc
      */
-    public function setPreferStable($preferStable)
+    public function setPreferStable($preferStable): void
     {
         $this->aliasOf->setPreferStable($preferStable);
     }
@@ -178,7 +178,7 @@ class RootAliasPackage extends CompleteAliasPackage implements RootPackageInterf
     /**
      * @inheritDoc
      */
-    public function setConfig(array $config)
+    public function setConfig(array $config): void
     {
         $this->aliasOf->setConfig($config);
     }
@@ -186,7 +186,7 @@ class RootAliasPackage extends CompleteAliasPackage implements RootPackageInterf
     /**
      * @inheritDoc
      */
-    public function setReferences(array $references)
+    public function setReferences(array $references): void
     {
         $this->aliasOf->setReferences($references);
     }
@@ -194,7 +194,7 @@ class RootAliasPackage extends CompleteAliasPackage implements RootPackageInterf
     /**
      * @inheritDoc
      */
-    public function setAliases(array $aliases)
+    public function setAliases(array $aliases): void
     {
         $this->aliasOf->setAliases($aliases);
     }
@@ -202,7 +202,7 @@ class RootAliasPackage extends CompleteAliasPackage implements RootPackageInterf
     /**
      * @inheritDoc
      */
-    public function setSuggests(array $suggests)
+    public function setSuggests(array $suggests): void
     {
         $this->aliasOf->setSuggests($suggests);
     }
@@ -210,7 +210,7 @@ class RootAliasPackage extends CompleteAliasPackage implements RootPackageInterf
     /**
      * @inheritDoc
      */
-    public function setExtra(array $extra)
+    public function setExtra(array $extra): void
     {
         $this->aliasOf->setExtra($extra);
     }

src/Composer/Package/RootPackage.php

@@ -37,7 +37,7 @@ class RootPackage extends CompletePackage implements RootPackageInterface
     /**
      * {@inerhitDoc}
      */
-    public function setMinimumStability($minimumStability)
+    public function setMinimumStability($minimumStability): void
     {
         $this->minimumStability = $minimumStability;
     }
@@ -53,7 +53,7 @@ class RootPackage extends CompletePackage implements RootPackageInterface
     /**
      * @inheritDoc
      */
-    public function setStabilityFlags(array $stabilityFlags)
+    public function setStabilityFlags(array $stabilityFlags): void
     {
         $this->stabilityFlags = $stabilityFlags;
     }
@@ -69,7 +69,7 @@ class RootPackage extends CompletePackage implements RootPackageInterface
     /**
      * {@inerhitDoc}
      */
-    public function setPreferStable($preferStable)
+    public function setPreferStable($preferStable): void
     {
         $this->preferStable = $preferStable;
     }
@@ -85,7 +85,7 @@ class RootPackage extends CompletePackage implements RootPackageInterface
     /**
      * {@inerhitDoc}
      */
-    public function setConfig(array $config)
+    public function setConfig(array $config): void
     {
         $this->config = $config;
     }
@@ -101,7 +101,7 @@ class RootPackage extends CompletePackage implements RootPackageInterface
     /**
      * {@inerhitDoc}
      */
-    public function setReferences(array $references)
+    public function setReferences(array $references): void
     {
         $this->references = $references;
     }
@@ -117,7 +117,7 @@ class RootPackage extends CompletePackage implements RootPackageInterface
     /**
      * {@inerhitDoc}
      */
-    public function setAliases(array $aliases)
+    public function setAliases(array $aliases): void
     {
         $this->aliases = $aliases;
     }

src/Composer/Platform/HhvmDetector.php

@@ -34,7 +34,7 @@ class HhvmDetector
     /**
      * @return void
      */
-    public function reset()
+    public function reset(): void
     {
         self::$hhvmVersion = null;
     }

src/Composer/Plugin/PluginManager.php

@@ -92,7 +92,7 @@ class PluginManager
      *
      * @return void
      */
-    public function loadInstalledPlugins()
+    public function loadInstalledPlugins(): void
     {
         if ($this->disablePlugins) {
             return;
@@ -111,7 +111,7 @@ class PluginManager
      *
      * @return void
      */
-    public function deactivateInstalledPlugins()
+    public function deactivateInstalledPlugins(): void
     {
         if ($this->disablePlugins) {
             return;
@@ -159,7 +159,7 @@ class PluginManager
      *
      * @throws \UnexpectedValueException
      */
-    public function registerPackage(PackageInterface $package, $failOnMissingClasses = false, $isGlobalPlugin = false)
+    public function registerPackage(PackageInterface $package, $failOnMissingClasses = false, $isGlobalPlugin = false): void
     {
         if ($this->disablePlugins) {
             return;
@@ -318,7 +318,7 @@ class PluginManager
      *
      * @throws \UnexpectedValueException
      */
-    public function deactivatePackage(PackageInterface $package)
+    public function deactivatePackage(PackageInterface $package): void
     {
         if ($this->disablePlugins) {
             return;
@@ -349,7 +349,7 @@ class PluginManager
      *
      * @throws \UnexpectedValueException
      */
-    public function uninstallPackage(PackageInterface $package)
+    public function uninstallPackage(PackageInterface $package): void
     {
         if ($this->disablePlugins) {
             return;
@@ -392,7 +392,7 @@ class PluginManager
      *
      * @return void
      */
-    public function addPlugin(PluginInterface $plugin, $isGlobalPlugin = false, PackageInterface $sourcePackage = null)
+    public function addPlugin(PluginInterface $plugin, $isGlobalPlugin = false, PackageInterface $sourcePackage = null): void
     {
         if ($sourcePackage === null) {
             trigger_error('Calling PluginManager::addPlugin without $sourcePackage is deprecated, if you are using this please get in touch with us to explain the use case', E_USER_DEPRECATED);
@@ -429,7 +429,7 @@ class PluginManager
      *
      * @return void
      */
-    public function removePlugin(PluginInterface $plugin)
+    public function removePlugin(PluginInterface $plugin): void
     {
         $index = array_search($plugin, $this->plugins, true);
         if ($index === false) {
@@ -454,7 +454,7 @@ class PluginManager
      *
      * @return void
      */
-    public function uninstallPlugin(PluginInterface $plugin)
+    public function uninstallPlugin(PluginInterface $plugin): void
     {
         $this->io->writeError('Uninstalling plugin '.get_class($plugin), true, IOInterface::DEBUG);
         $plugin->uninstall($this->composer, $this->io);
@@ -476,7 +476,7 @@ class PluginManager
      *
      * @throws \RuntimeException
      */
-    private function loadRepository(RepositoryInterface $repo, $isGlobalRepo)
+    private function loadRepository(RepositoryInterface $repo, $isGlobalRepo): void
     {
         $packages = $repo->getPackages();
         $sortedPackages = PackageSorter::sortPackages($packages);
@@ -503,7 +503,7 @@ class PluginManager
      *
      * @return void
      */
-    private function deactivateRepository(RepositoryInterface $repo, $isGlobalRepo)
+    private function deactivateRepository(RepositoryInterface $repo, $isGlobalRepo): void
     {
         $packages = $repo->getPackages();
         $sortedPackages = array_reverse(PackageSorter::sortPackages($packages));

src/Composer/Plugin/PreFileDownloadEvent.php

@@ -95,7 +95,7 @@ class PreFileDownloadEvent extends Event
      *
      * @return void
      */
-    public function setProcessedUrl($processedUrl)
+    public function setProcessedUrl($processedUrl): void
     {
         $this->processedUrl = $processedUrl;
     }
@@ -117,7 +117,7 @@ class PreFileDownloadEvent extends Event
      *
      * @return void
      */
-    public function setCustomCacheKey($customCacheKey)
+    public function setCustomCacheKey($customCacheKey): void
     {
         $this->customCacheKey = $customCacheKey;
     }
@@ -166,7 +166,7 @@ class PreFileDownloadEvent extends Event
      *
      * @return void
      */
-    public function setTransportOptions(array $options)
+    public function setTransportOptions(array $options): void
     {
         $this->transportOptions = $options;
     }

src/Composer/Plugin/PrePoolCreateEvent.php

@@ -163,7 +163,7 @@ class PrePoolCreateEvent extends Event
      *
      * @return void
      */
-    public function setPackages(array $packages)
+    public function setPackages(array $packages): void
     {
         $this->packages = $packages;
     }
@@ -173,7 +173,7 @@ class PrePoolCreateEvent extends Event
      *
      * @return void
      */
-    public function setUnacceptableFixedPackages(array $packages)
+    public function setUnacceptableFixedPackages(array $packages): void
     {
         $this->unacceptableFixedPackages = $packages;
     }

src/Composer/Repository/CompositeRepository.php

@@ -166,7 +166,7 @@ class CompositeRepository implements RepositoryInterface
     /**
      * @return void
      */
-    public function removePackage(PackageInterface $package)
+    public function removePackage(PackageInterface $package): void
     {
         foreach ($this->repositories as $repository) {
             if ($repository instanceof WritableRepositoryInterface) {
@@ -195,7 +195,7 @@ class CompositeRepository implements RepositoryInterface
      *
      * @return void
      */
-    public function addRepository(RepositoryInterface $repository)
+    public function addRepository(RepositoryInterface $repository): void
     {
         if ($repository instanceof self) {
             foreach ($repository->getRepositories() as $repo) {

src/Composer/Repository/InstalledRepository.php

@@ -259,7 +259,7 @@ class InstalledRepository extends CompositeRepository
     /**
      * @inheritDoc
      */
-    public function addRepository(RepositoryInterface $repository)
+    public function addRepository(RepositoryInterface $repository): void
     {
         if (
             $repository instanceof LockArrayRepository

src/Composer/Repository/PackageRepository.php

@@ -45,7 +45,7 @@ class PackageRepository extends ArrayRepository
     /**
      * Initializes repository (reads file, or remote address).
      */
-    protected function initialize()
+    protected function initialize(): void
     {
         parent::initialize();
 

src/Composer/Repository/PathRepository.php

@@ -144,7 +144,7 @@ class PathRepository extends ArrayRepository implements ConfigurableRepositoryIn
      *
      * This method will basically read the folder and add the found package.
      */
-    protected function initialize()
+    protected function initialize(): void
     {
         parent::initialize();
 

src/Composer/Repository/PlatformRepository.php

@@ -106,7 +106,7 @@ class PlatformRepository extends ArrayRepository
         return $this->disabledPackages;
     }
 
-    protected function initialize()
+    protected function initialize(): void
     {
         parent::initialize();
 
@@ -531,7 +531,7 @@ class PlatformRepository extends ArrayRepository
     /**
      * @inheritDoc
      */
-    public function addPackage(PackageInterface $package)
+    public function addPackage(PackageInterface $package): void
     {
         if (!$package instanceof CompletePackage) {
             throw new \UnexpectedValueException('Expected CompletePackage but got '.get_class($package));
@@ -604,7 +604,7 @@ class PlatformRepository extends ArrayRepository
     /**
      * @return void
      */
-    private function addDisabledPackage(CompletePackage $package)
+    private function addDisabledPackage(CompletePackage $package): void
     {
         $package->setDescription($package->getDescription().'. <warning>Package disabled via config.platform</warning>');
         $package->setExtra(array('config.platform' => true));
@@ -620,7 +620,7 @@ class PlatformRepository extends ArrayRepository
      *
      * @return void
      */
-    private function addExtension($name, $prettyVersion)
+    private function addExtension($name, $prettyVersion): void
     {
         $extraDescription = null;
 
@@ -667,7 +667,7 @@ class PlatformRepository extends ArrayRepository
      *
      * @return void
      */
-    private function addLibrary($name, $prettyVersion, $description = null, array $replaces = array(), array $provides = array())
+    private function addLibrary($name, $prettyVersion, $description = null, array $replaces = array(), array $provides = array()): void
     {
         try {
             $version = $this->versionParser->normalize($prettyVersion);

src/Composer/Repository/RepositorySet.php

@@ -118,7 +118,7 @@ class RepositorySet
      *
      * @return void
      */
-    public function allowInstalledRepositories($allow = true)
+    public function allowInstalledRepositories($allow = true): void
     {
         $this->allowInstalledRepositories = $allow;
     }
@@ -142,7 +142,7 @@ class RepositorySet
      *
      * @return void
      */
-    public function addRepository(RepositoryInterface $repo)
+    public function addRepository(RepositoryInterface $repo): void
     {
         if ($this->locked) {
             throw new \RuntimeException("Pool has already been created from this repository set, it cannot be modified anymore.");

src/Composer/Repository/Vcs/FossilDriver.php

@@ -38,7 +38,7 @@ class FossilDriver extends VcsDriver
     /**
      * @inheritDoc
      */
-    public function initialize()
+    public function initialize(): void
     {
         // Make sure fossil is installed and reachable.
         $this->checkFossil();
@@ -71,7 +71,7 @@ class FossilDriver extends VcsDriver
      *
      * @return void
      */
-    protected function checkFossil()
+    protected function checkFossil(): void
     {
         if (0 !== $this->process->execute('fossil version', $ignoredOutput)) {
             throw new \RuntimeException("fossil was not found, check that it is installed and in your PATH env.\n\n" . $this->process->getErrorOutput());
@@ -83,7 +83,7 @@ class FossilDriver extends VcsDriver
      *
      * @return void
      */
-    protected function updateLocalRepo()
+    protected function updateLocalRepo(): void
     {
         $fs = new Filesystem();
         $fs->ensureDirectoryExists($this->checkoutDir);

src/Composer/Repository/Vcs/GitLabDriver.php

@@ -91,7 +91,7 @@ class GitLabDriver extends VcsDriver
      *
      * @inheritDoc
      */
-    public function initialize()
+    public function initialize(): void
     {
         if (!Preg::isMatch(self::URL_REGEX, $this->url, $match)) {
             throw new \InvalidArgumentException(sprintf('The GitLab repository URL %s is invalid. It must be the HTTP URL of a GitLab project.', $this->url));
@@ -136,7 +136,7 @@ class GitLabDriver extends VcsDriver
      *
      * @return void
      */
-    public function setHttpDownloader(HttpDownloader $httpDownloader)
+    public function setHttpDownloader(HttpDownloader $httpDownloader): void
     {
         $this->httpDownloader = $httpDownloader;
     }
@@ -383,7 +383,7 @@ class GitLabDriver extends VcsDriver
     /**
      * @return void
      */
-    protected function fetchProject()
+    protected function fetchProject(): void
     {
         // we need to fetch the default branch from the api
         $resource = $this->getApiUrl();
@@ -452,7 +452,7 @@ class GitLabDriver extends VcsDriver
      *
      * @return void
      */
-    protected function setupGitDriver($url)
+    protected function setupGitDriver($url): void
     {
         $this->gitDriver = new GitDriver(
             array('url' => $url),

src/Composer/SelfUpdate/Versions.php

@@ -63,7 +63,7 @@ class Versions
      *
      * @return void
      */
-    public function setChannel($channel)
+    public function setChannel($channel): void
     {
         if (!in_array($channel, self::$channels, true)) {
             throw new \InvalidArgumentException('Invalid channel '.$channel.', must be one of: ' . implode(', ', self::$channels));

src/Composer/Util/AuthHelper.php

@@ -41,7 +41,7 @@ class AuthHelper
      *
      * @return void
      */
-    public function storeAuth($origin, $storeAuth)
+    public function storeAuth($origin, $storeAuth): void
     {
         $store = false;
         $configSource = $this->config->getAuthConfigSource();

src/Composer/Util/Bitbucket.php

@@ -223,7 +223,7 @@ class Bitbucket
      *
      * @return void
      */
-    private function storeInAuthConfig($originUrl, $consumerKey, $consumerSecret)
+    private function storeInAuthConfig($originUrl, $consumerKey, $consumerSecret): void
     {
         $this->config->getConfigSource()->removeConfigSetting('bitbucket-oauth.'.$originUrl);
 

src/Composer/Util/ErrorHandler.php

@@ -76,7 +76,7 @@ class ErrorHandler
      *
      * @return void
      */
-    public static function register(IOInterface $io = null)
+    public static function register(IOInterface $io = null): void
     {
         set_error_handler(array(__CLASS__, 'handle'));
         error_reporting(E_ALL | E_STRICT);

src/Composer/Util/Hg.php

@@ -53,7 +53,7 @@ class Hg
      *
      * @return void
      */
-    public function runCommand($commandCallable, $url, $cwd)
+    public function runCommand($commandCallable, $url, $cwd): void
     {
         $this->config->prohibitUrlByConfig($url, $this->io);
 

src/Composer/Util/Http/CurlDownloader.php

@@ -180,7 +180,7 @@ class CurlDownloader
         if ($copyTo) {
             $errorMessage = '';
             // @phpstan-ignore-next-line
-            set_error_handler(function ($code, $msg) use (&$errorMessage) {
+            set_error_handler(function ($code, $msg) use (&$errorMessage): void {
                 if ($errorMessage) {
                     $errorMessage .= "\n";
                 }
@@ -287,7 +287,7 @@ class CurlDownloader
      * @param  int  $id
      * @return void
      */
-    public function abortRequest($id)
+    public function abortRequest($id): void
     {
         if (isset($this->jobs[$id], $this->jobs[$id]['curlHandle'])) {
             $job = $this->jobs[$id];
@@ -309,7 +309,7 @@ class CurlDownloader
     /**
      * @return void
      */
-    public function tick()
+    public function tick(): void
     {
         static $timeoutWarning = false;
 
@@ -579,7 +579,7 @@ class CurlDownloader
      *
      * @return void
      */
-    private function restartJob(array $job, $url, array $attributes = array())
+    private function restartJob(array $job, $url, array $attributes = array()): void
     {
         if (null !== $job['filename']) {
             @unlink($job['filename'].'~');
@@ -614,7 +614,7 @@ class CurlDownloader
      * @param  Job                $job
      * @return void
      */
-    private function rejectJob(array $job, \Exception $e)
+    private function rejectJob(array $job, \Exception $e): void
     {
         if (is_resource($job['headerHandle'])) {
             fclose($job['headerHandle']);
@@ -632,7 +632,7 @@ class CurlDownloader
      * @param  int  $code
      * @return void
      */
-    private function checkCurlResult($code)
+    private function checkCurlResult($code): void
     {
         if ($code != CURLM_OK && $code != CURLM_CALL_MULTI_PERFORM) {
             throw new \RuntimeException(

src/Composer/Util/Http/ProxyHelper.php

@@ -97,7 +97,7 @@ class ProxyHelper
      *
      * @return void
      */
-    public static function setRequestFullUri($requestUrl, array &$options)
+    public static function setRequestFullUri($requestUrl, array &$options): void
     {
         if ('http' === parse_url($requestUrl, PHP_URL_SCHEME)) {
             $options['http']['request_fulluri'] = true;

src/Composer/Util/Http/ProxyManager.php

@@ -72,7 +72,7 @@ class ProxyManager
      *
      * @return void
      */
-    public static function reset()
+    public static function reset(): void
     {
         self::$instance = null;
     }
@@ -133,7 +133,7 @@ class ProxyManager
      *
      * @return void
      */
-    private function initProxyData()
+    private function initProxyData(): void
     {
         try {
             list($httpProxy, $httpsProxy, $noProxy) = ProxyHelper::getProxyData();

src/Composer/Util/Http/Response.php

@@ -109,7 +109,7 @@ class Response
      * @return void
      * @phpstan-impure
      */
-    public function collect()
+    public function collect(): void
     {
         /** @phpstan-ignore-next-line */
         $this->request = $this->code = $this->headers = $this->body = null;

src/Composer/Util/Loop.php

@@ -62,15 +62,15 @@ class Loop
      * @param  ?ProgressBar       $progress
      * @return void
      */
-    public function wait(array $promises, ProgressBar $progress = null)
+    public function wait(array $promises, ProgressBar $progress = null): void
     {
         /** @var \Exception|null */
         $uncaught = null;
 
         \React\Promise\all($promises)->then(
-            function () {
+            function (): void {
             },
-            function ($e) use (&$uncaught) {
+            function ($e) use (&$uncaught): void {
                 $uncaught = $e;
             }
         );
@@ -122,7 +122,7 @@ class Loop
     /**
      * @return void
      */
-    public function abortJobs()
+    public function abortJobs(): void
     {
         foreach ($this->currentPromises as $promiseGroup) {
             foreach ($promiseGroup as $promise) {

src/Composer/Util/PackageSorter.php

@@ -69,17 +69,17 @@ class PackageSorter
             $weightList[$index] = $weight;
         }
 
-        $stable_sort = function (&$array) {
+        $stable_sort = function (&$array): void {
             static $transform, $restore;
 
             $i = 0;
 
             if (!$transform) {
-                $transform = function (&$v, $k) use (&$i) {
+                $transform = function (&$v, $k) use (&$i): void {
                     $v = array($v, ++$i, $k, $v);
                 };
 
-                $restore = function (&$v) {
+                $restore = function (&$v): void {
                     $v = $v[3];
                 };
             }

src/Composer/Util/Platform.php

@@ -51,7 +51,7 @@ class Platform
      * @param  string $value
      * @return void
      */
-    public static function putEnv($name, $value)
+    public static function putEnv($name, $value): void
     {
         $value = (string) $value;
         putenv($name . '=' . $value);
@@ -64,7 +64,7 @@ class Platform
      * @param  string $name
      * @return void
      */
-    public static function clearEnv($name)
+    public static function clearEnv($name): void
     {
         putenv($name);
         unset($_SERVER[$name], $_ENV[$name]);
@@ -202,7 +202,7 @@ class Platform
     /**
      * @return void
      */
-    public static function workaroundFilesystemIssues()
+    public static function workaroundFilesystemIssues(): void
     {
         if (self::isVirtualBoxGuest()) {
             usleep(200000);

src/Composer/Util/Silencer.php

@@ -47,7 +47,7 @@ class Silencer
      *
      * @return void
      */
-    public static function restore()
+    public static function restore(): void
     {
         if (!empty(self::$stack)) {
             error_reporting(array_pop(self::$stack));

src/Composer/Util/Svn.php

@@ -86,7 +86,7 @@ class Svn
     /**
      * @return void
      */
-    public static function cleanEnv()
+    public static function cleanEnv(): void
     {
         // clean up env for OSX, see https://github.com/composer/composer/issues/2146#issuecomment-35478940
         Platform::clearEnv('DYLD_LIBRARY_PATH');
@@ -194,7 +194,7 @@ class Svn
      * @param  bool $cacheCredentials
      * @return void
      */
-    public function setCacheCredentials($cacheCredentials)
+    public function setCacheCredentials($cacheCredentials): void
     {
         $this->cacheCredentials = $cacheCredentials;
     }

src/Composer/Util/SyncHelper.php

@@ -31,7 +31,7 @@ class SyncHelper
      *
      * @return void
      */
-    public static function downloadAndInstallPackageSync(Loop $loop, DownloaderInterface $downloader, $path, PackageInterface $package, PackageInterface $prevPackage = null)
+    public static function downloadAndInstallPackageSync(Loop $loop, DownloaderInterface $downloader, $path, PackageInterface $package, PackageInterface $prevPackage = null): void
     {
         $type = $prevPackage ? 'update' : 'install';
 
@@ -61,7 +61,7 @@ class SyncHelper
      *
      * @return void
      */
-    public static function await(Loop $loop, PromiseInterface $promise = null)
+    public static function await(Loop $loop, PromiseInterface $promise = null): void
     {
         if ($promise) {
             $loop->wait(array($promise));

tests/Composer/Test/AllFunctionalTest.php

@@ -63,7 +63,7 @@ class AllFunctionalTest extends TestCase
         $fs->removeDirectory(dirname(self::$pharPath));
     }
 
-    public function testBuildPhar()
+    public function testBuildPhar(): void
     {
         if (defined('HHVM_VERSION')) {
             $this->markTestSkipped('Building the phar does not work on HHVM.');
@@ -100,7 +100,7 @@ class AllFunctionalTest extends TestCase
      * @depends testBuildPhar
      * @param string $testFile
      */
-    public function testIntegration($testFile)
+    public function testIntegration($testFile): void
     {
         $testData = $this->parseTestFile($testFile);
         $this->testDir = self::getUniqueTmpDirectory();
@@ -121,7 +121,7 @@ class AllFunctionalTest extends TestCase
         $proc = Process::fromShellCommandline(escapeshellcmd(PHP_BINARY).' '.escapeshellarg(self::$pharPath).' --no-ansi '.$testData['RUN'], $this->testDir, $env, null, 300);
         $output = '';
 
-        $exitCode = $proc->run(function ($type, $buffer) use (&$output) {
+        $exitCode = $proc->run(function ($type, $buffer) use (&$output): void {
             $output .= $buffer;
         });
 

tests/Composer/Test/ApplicationTest.php

@@ -25,7 +25,7 @@ class ApplicationTest extends TestCase
         putenv('COMPOSER_NO_INTERACTION');
     }
 
-    public function testDevWarning()
+    public function testDevWarning(): void
     {
         $application = new Application;
 
@@ -84,7 +84,7 @@ class ApplicationTest extends TestCase
      * @param  string $command
      * @return void
      */
-    public function ensureNoDevWarning($command)
+    public function ensureNoDevWarning($command): void
     {
         $application = new Application;
 
@@ -133,12 +133,12 @@ class ApplicationTest extends TestCase
         $application->doRun($inputMock, $outputMock);
     }
 
-    public function testDevWarningPrevented()
+    public function testDevWarningPrevented(): void
     {
         $this->ensureNoDevWarning('self-update');
     }
 
-    public function testDevWarningPreventedAlias()
+    public function testDevWarningPreventedAlias(): void
     {
         $this->ensureNoDevWarning('self-up');
     }

tests/Composer/Test/Autoload/AutoloadGeneratorTest.php

@@ -161,7 +161,7 @@ class AutoloadGeneratorTest extends TestCase
         }
     }
 
-    public function testRootPackageAutoloading()
+    public function testRootPackageAutoloading(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setAutoload(array(
@@ -206,7 +206,7 @@ class AutoloadGeneratorTest extends TestCase
         $this->assertAutoloadFiles('classmap', $this->vendorDir.'/composer', 'classmap');
     }
 
-    public function testRootPackageDevAutoloading()
+    public function testRootPackageDevAutoloading(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setAutoload(array(
@@ -244,7 +244,7 @@ class AutoloadGeneratorTest extends TestCase
         $this->assertAutoloadFiles('files2', $this->vendorDir.'/composer', 'files');
     }
 
-    public function testRootPackageDevAutoloadingDisabledByDefault()
+    public function testRootPackageDevAutoloadingDisabledByDefault(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setAutoload(array(
@@ -277,7 +277,7 @@ class AutoloadGeneratorTest extends TestCase
         $this->assertFalse(is_file($this->vendorDir.'/composer/autoload_files.php'));
     }
 
-    public function testVendorDirSameAsWorkingDir()
+    public function testVendorDirSameAsWorkingDir(): void
     {
         $this->vendorDir = $this->workingDir;
 
@@ -308,7 +308,7 @@ class AutoloadGeneratorTest extends TestCase
         $this->assertAutoloadFiles('classmap3', $this->vendorDir.'/composer', 'classmap');
     }
 
-    public function testRootPackageAutoloadingAlternativeVendorDir()
+    public function testRootPackageAutoloadingAlternativeVendorDir(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setAutoload(array(
@@ -337,7 +337,7 @@ class AutoloadGeneratorTest extends TestCase
         $this->assertAutoloadFiles('classmap2', $this->vendorDir.'/composer', 'classmap');
     }
 
-    public function testRootPackageAutoloadingWithTargetDir()
+    public function testRootPackageAutoloadingWithTargetDir(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setAutoload(array(
@@ -368,7 +368,7 @@ class AutoloadGeneratorTest extends TestCase
         $this->assertAutoloadFiles('classmap6', $this->vendorDir.'/composer', 'classmap');
     }
 
-    public function testVendorsAutoloading()
+    public function testVendorsAutoloading(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setRequires(array(
@@ -397,7 +397,7 @@ class AutoloadGeneratorTest extends TestCase
         $this->assertFileExists($this->vendorDir.'/composer/autoload_classmap.php', "ClassMap file needs to be generated, even if empty.");
     }
 
-    public function testNonDevAutoloadExclusionWithRecursion()
+    public function testNonDevAutoloadExclusionWithRecursion(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setRequires(array(
@@ -430,7 +430,7 @@ class AutoloadGeneratorTest extends TestCase
         $this->assertFileExists($this->vendorDir.'/composer/autoload_classmap.php', "ClassMap file needs to be generated, even if empty.");
     }
 
-    public function testNonDevAutoloadShouldIncludeReplacedPackages()
+    public function testNonDevAutoloadShouldIncludeReplacedPackages(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setRequires(array('a/a' => new Link('a', 'a/a', new MatchAllConstraint())));
@@ -464,7 +464,7 @@ class AutoloadGeneratorTest extends TestCase
         );
     }
 
-    public function testNonDevAutoloadExclusionWithRecursionReplace()
+    public function testNonDevAutoloadExclusionWithRecursionReplace(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setRequires(array(
@@ -497,7 +497,7 @@ class AutoloadGeneratorTest extends TestCase
         $this->assertFileExists($this->vendorDir.'/composer/autoload_classmap.php', "ClassMap file needs to be generated, even if empty.");
     }
 
-    public function testNonDevAutoloadReplacesNestedRequirements()
+    public function testNonDevAutoloadReplacesNestedRequirements(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setRequires(array(
@@ -549,7 +549,7 @@ class AutoloadGeneratorTest extends TestCase
         $this->assertAutoloadFiles('classmap9', $this->vendorDir.'/composer', 'classmap');
     }
 
-    public function testPharAutoload()
+    public function testPharAutoload(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setRequires(array(
@@ -590,7 +590,7 @@ class AutoloadGeneratorTest extends TestCase
         $this->assertAutoloadFiles('phar_static', $this->vendorDir . '/composer', 'static');
     }
 
-    public function testPSRToClassMapIgnoresNonExistingDir()
+    public function testPSRToClassMapIgnoresNonExistingDir(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
 
@@ -613,7 +613,7 @@ class AutoloadGeneratorTest extends TestCase
         );
     }
 
-    public function testPSRToClassMapIgnoresNonPSRClasses()
+    public function testPSRToClassMapIgnoresNonPSRClasses(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
 
@@ -654,7 +654,7 @@ EOF;
         $this->assertStringEqualsFile($this->vendorDir.'/composer/autoload_classmap.php', $expectedClassmap);
     }
 
-    public function testVendorsClassMapAutoloading()
+    public function testVendorsClassMapAutoloading(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setRequires(array(
@@ -694,7 +694,7 @@ EOF;
         $this->assertAutoloadFiles('classmap4', $this->vendorDir.'/composer', 'classmap');
     }
 
-    public function testVendorsClassMapAutoloadingWithTargetDir()
+    public function testVendorsClassMapAutoloadingWithTargetDir(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setRequires(array(
@@ -734,7 +734,7 @@ EOF;
         );
     }
 
-    public function testClassMapAutoloadingEmptyDirAndExactFile()
+    public function testClassMapAutoloadingEmptyDirAndExactFile(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setRequires(array(
@@ -779,7 +779,7 @@ EOF;
         $this->assertStringNotContainsString('$loader->setApcuPrefix(', file_get_contents($this->vendorDir.'/composer/autoload_real.php'));
     }
 
-    public function testClassMapAutoloadingAuthoritativeAndApcu()
+    public function testClassMapAutoloadingAuthoritativeAndApcu(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setRequires(array(
@@ -828,7 +828,7 @@ EOF;
         $this->assertStringContainsString('$loader->setApcuPrefix(', file_get_contents($this->vendorDir.'/composer/autoload_real.php'));
     }
 
-    public function testClassMapAutoloadingAuthoritativeAndApcuPrefix()
+    public function testClassMapAutoloadingAuthoritativeAndApcuPrefix(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setRequires(array(
@@ -877,7 +877,7 @@ EOF;
         $this->assertStringContainsString('$loader->setApcuPrefix(\'custom\\\'Prefix\');', file_get_contents($this->vendorDir.'/composer/autoload_real.php'));
     }
 
-    public function testFilesAutoloadGeneration()
+    public function testFilesAutoloadGeneration(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setAutoload(array('files' => array('root.php')));
@@ -924,7 +924,7 @@ EOF;
         $this->assertTrue(function_exists('testFilesAutoloadGenerationRoot'));
     }
 
-    public function testFilesAutoloadGenerationRemoveExtraEntitiesFromAutoloadFiles()
+    public function testFilesAutoloadGenerationRemoveExtraEntitiesFromAutoloadFiles(): void
     {
         $autoloadPackage = new RootPackage('root/a', '1.0', '1.0');
         $autoloadPackage->setAutoload(array('files' => array('root.php')));
@@ -995,7 +995,7 @@ EOF;
         $this->assertFileDoesNotExist($this->vendorDir.'/composer/include_paths.php');
     }
 
-    public function testFilesAutoloadOrderByDependencies()
+    public function testFilesAutoloadOrderByDependencies(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setAutoload(array('files' => array('root2.php')));
@@ -1065,7 +1065,7 @@ EOF;
      * - The main package has priority over other packages.
      * - Longer namespaces have priority over shorter namespaces.
      */
-    public function testOverrideVendorsAutoloading()
+    public function testOverrideVendorsAutoloading(): void
     {
         $rootPackage = new RootPackage('root/z', '1.0', '1.0');
         $rootPackage->setAutoload(array(
@@ -1160,7 +1160,7 @@ EOF;
         $this->assertStringEqualsFile($this->vendorDir.'/composer/autoload_classmap.php', $expectedClassmap);
     }
 
-    public function testIncludePathFileGeneration()
+    public function testIncludePathFileGeneration(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $packages = array();
@@ -1197,7 +1197,7 @@ EOF;
         );
     }
 
-    public function testIncludePathsArePrependedInAutoloadFile()
+    public function testIncludePathsArePrependedInAutoloadFile(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $packages = array();
@@ -1228,7 +1228,7 @@ EOF;
         set_include_path($oldIncludePath);
     }
 
-    public function testIncludePathsInRootPackage()
+    public function testIncludePathsInRootPackage(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setIncludePaths(array('/lib', '/src'));
@@ -1257,7 +1257,7 @@ EOF;
         set_include_path($oldIncludePath);
     }
 
-    public function testIncludePathFileWithoutPathsIsSkipped()
+    public function testIncludePathFileWithoutPathsIsSkipped(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $packages = array();
@@ -1276,7 +1276,7 @@ EOF;
         $this->assertFileDoesNotExist($this->vendorDir."/composer/include_paths.php");
     }
 
-    public function testPreAndPostEventsAreDispatchedDuringAutoloadDump()
+    public function testPreAndPostEventsAreDispatchedDuringAutoloadDump(): void
     {
         $this->eventDispatcher
             ->expects($this->exactly(2))
@@ -1297,7 +1297,7 @@ EOF;
         $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', true, '_8');
     }
 
-    public function testUseGlobalIncludePath()
+    public function testUseGlobalIncludePath(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setAutoload(array(
@@ -1318,7 +1318,7 @@ EOF;
         $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_static_include_path.php', $this->vendorDir.'/composer/autoload_static.php');
     }
 
-    public function testVendorDirExcludedFromWorkingDir()
+    public function testVendorDirExcludedFromWorkingDir(): void
     {
         $workingDir = $this->vendorDir.'/working-dir';
         $vendorDir = $workingDir.'/../vendor';
@@ -1432,7 +1432,7 @@ EOF;
         $this->assertStringContainsString("\$baseDir . '/test.php',\n", file_get_contents($vendorDir.'/composer/autoload_files.php'));
     }
 
-    public function testUpLevelRelativePaths()
+    public function testUpLevelRelativePaths(): void
     {
         $workingDir = $this->workingDir.'/working-dir';
         mkdir($workingDir, 0777, true);
@@ -1516,7 +1516,7 @@ EOF;
         $this->assertStringContainsString("\$baseDir . '/../test.php',\n", file_get_contents($this->vendorDir.'/composer/autoload_files.php'));
     }
 
-    public function testEmptyPaths()
+    public function testEmptyPaths(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setAutoload(array(
@@ -1584,7 +1584,7 @@ EOF;
         $this->assertStringEqualsFile($this->vendorDir.'/composer/autoload_classmap.php', $expectedClassmap);
     }
 
-    public function testVendorSubstringPath()
+    public function testVendorSubstringPath(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setAutoload(array(
@@ -1631,7 +1631,7 @@ EOF;
         $this->assertStringEqualsFile($this->vendorDir.'/composer/autoload_psr4.php', $expectedPsr4);
     }
 
-    public function testExcludeFromClassmap()
+    public function testExcludeFromClassmap(): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setAutoload(array(
@@ -1709,7 +1709,7 @@ EOF;
      *
      * @dataProvider platformCheckProvider
      */
-    public function testGeneratesPlatformCheck(array $requires, $expectedFixture, array $provides = array(), array $replaces = array(), $ignorePlatformReqs = false)
+    public function testGeneratesPlatformCheck(array $requires, $expectedFixture, array $provides = array(), array $replaces = array(), $ignorePlatformReqs = false): void
     {
         $package = new RootPackage('root/a', '1.0', '1.0');
         $package->setRequires($requires);
@@ -1850,7 +1850,7 @@ EOF;
      *
      * @return void
      */
-    private function assertAutoloadFiles($name, $dir, $type = 'namespaces')
+    private function assertAutoloadFiles($name, $dir, $type = 'namespaces'): void
     {
         $a = __DIR__.'/Fixtures/autoload_'.$name.'.php';
         $b = $dir.'/autoload_'.$type.'.php';
@@ -1864,7 +1864,7 @@ EOF;
      *
      * @return void
      */
-    public static function assertFileContentEquals(string $expected, string $actual, ?string $message = null)
+    public static function assertFileContentEquals(string $expected, string $actual, ?string $message = null): void
     {
         self::assertSame(
             str_replace("\r", '', (string) file_get_contents($expected)),

tests/Composer/Test/Autoload/ClassLoaderTest.php

@@ -27,7 +27,7 @@ class ClassLoaderTest extends TestCase
      *
      * @param string $class The fully-qualified class name to test, without preceding namespace separator.
      */
-    public function testLoadClass($class)
+    public function testLoadClass($class): void
     {
         $loader = new ClassLoader();
         $loader->add('Namespaced\\', __DIR__ . '/Fixtures');
@@ -54,7 +54,7 @@ class ClassLoaderTest extends TestCase
     /**
      * getPrefixes method should return empty array if ClassLoader does not have any psr-0 configuration
      */
-    public function testGetPrefixesWithNoPSR0Configuration()
+    public function testGetPrefixesWithNoPSR0Configuration(): void
     {
         $loader = new ClassLoader();
         $this->assertEmpty($loader->getPrefixes());

tests/Composer/Test/Autoload/ClassMapGeneratorTest.php

@@ -30,7 +30,7 @@ class ClassMapGeneratorTest extends TestCase
      * @param string $directory
      * @param array<string, string> $expected
      */
-    public function testCreateMap($directory, $expected)
+    public function testCreateMap($directory, $expected): void
     {
         $this->assertEqualsNormalized($expected, ClassMapGenerator::createMap($directory));
     }
@@ -120,7 +120,7 @@ class ClassMapGeneratorTest extends TestCase
         return $data;
     }
 
-    public function testCreateMapFinderSupport()
+    public function testCreateMapFinderSupport(): void
     {
         $this->checkIfFinderIsAvailable();
 
@@ -133,7 +133,7 @@ class ClassMapGeneratorTest extends TestCase
         ), ClassMapGenerator::createMap($finder));
     }
 
-    public function testFindClassesThrowsWhenFileDoesNotExist()
+    public function testFindClassesThrowsWhenFileDoesNotExist(): void
     {
         $r = new \ReflectionClass('Composer\\Autoload\\ClassMapGenerator');
         $find = $r->getMethod('findClasses');
@@ -144,7 +144,7 @@ class ClassMapGeneratorTest extends TestCase
         $find->invoke(null, __DIR__ . '/no-file');
     }
 
-    public function testAmbiguousReference()
+    public function testAmbiguousReference(): void
     {
         $this->checkIfFinderIsAvailable();
 
@@ -167,7 +167,7 @@ class ClassMapGeneratorTest extends TestCase
 
         $io->expects($this->once())
             ->method('writeError')
-            ->will($this->returnCallback(function ($text) use (&$msg) {
+            ->will($this->returnCallback(function ($text) use (&$msg): void {
                 $msg = $text;
             }));
 
@@ -188,7 +188,7 @@ class ClassMapGeneratorTest extends TestCase
      * If one file has a class or interface defined more than once,
      * an ambiguous reference warning should not be produced
      */
-    public function testUnambiguousReference()
+    public function testUnambiguousReference(): void
     {
         $tempDir = $this->getUniqueTmpDirectory();
 
@@ -224,14 +224,14 @@ class ClassMapGeneratorTest extends TestCase
         $fs->removeDirectory($tempDir);
     }
 
-    public function testCreateMapThrowsWhenDirectoryDoesNotExist()
+    public function testCreateMapThrowsWhenDirectoryDoesNotExist(): void
     {
         self::expectException('RuntimeException');
         self::expectExceptionMessage('Could not scan for classes inside');
         ClassMapGenerator::createMap(__DIR__ . '/no-file.no-foler');
     }
 
-    public function testDump()
+    public function testDump(): void
     {
         $tempDir = self::getUniqueTmpDirectory();
 
@@ -249,7 +249,7 @@ class ClassMapGeneratorTest extends TestCase
         $fs->removeDirectory($tempDir);
     }
 
-    public function testCreateMapDoesNotHitRegexBacktraceLimit()
+    public function testCreateMapDoesNotHitRegexBacktraceLimit(): void
     {
         $expected = array(
             'Foo\\StripNoise' => realpath(__DIR__) . '/Fixtures/pcrebacktracelimit/StripNoise.php',
@@ -274,7 +274,7 @@ class ClassMapGeneratorTest extends TestCase
      * @param string $message
      * @return  void
      */
-    protected function assertEqualsNormalized($expected, $actual, $message = '')
+    protected function assertEqualsNormalized($expected, $actual, $message = ''): void
     {
         foreach ($expected as $ns => $path) {
             $expected[$ns] = strtr($path, '\\', '/');
@@ -286,7 +286,7 @@ class ClassMapGeneratorTest extends TestCase
     }
 
     /** @return void */
-    private function checkIfFinderIsAvailable()
+    private function checkIfFinderIsAvailable(): void
     {
         if (!class_exists('Symfony\\Component\\Finder\\Finder')) {
             $this->markTestSkipped('Finder component is not available');

tests/Composer/Test/CacheTest.php

@@ -62,7 +62,7 @@ class CacheTest extends TestCase
         }
     }
 
-    public function testRemoveOutdatedFiles()
+    public function testRemoveOutdatedFiles(): void
     {
         $outdated = array_slice($this->files, 1);
         $this->finder
@@ -82,7 +82,7 @@ class CacheTest extends TestCase
         $this->assertFileExists("{$this->root}/cached.file0.zip");
     }
 
-    public function testRemoveFilesWhenCacheIsTooLarge()
+    public function testRemoveFilesWhenCacheIsTooLarge(): void
     {
         $emptyFinder = $this->getMockBuilder('Symfony\Component\Finder\Finder')->disableOriginalConstructor()->getMock();
         $emptyFinder
@@ -111,7 +111,7 @@ class CacheTest extends TestCase
         $this->assertFileExists("{$this->root}/cached.file3.zip");
     }
 
-    public function testClearCache()
+    public function testClearCache(): void
     {
         $io = $this->getMockBuilder('Composer\IO\IOInterface')->getMock();
         $cache = new Cache($io, $this->root, 'a-z0-9.', $this->filesystem);

tests/Composer/Test/Command/ArchiveCommandTest.php

@@ -20,7 +20,7 @@ use Symfony\Component\Console\Input\ArrayInput;
 
 class ArchiveCommandTest extends TestCase
 {
-    public function testUsesConfigFromComposerObject()
+    public function testUsesConfigFromComposerObject(): void
     {
         $input = new ArrayInput(array());
 
@@ -64,7 +64,7 @@ class ArchiveCommandTest extends TestCase
         $command->run($input, $output);
     }
 
-    public function testUsesConfigFromFactoryWhenComposerIsNotDefined()
+    public function testUsesConfigFromFactoryWhenComposerIsNotDefined(): void
     {
         $input = new ArrayInput(array());
 

tests/Composer/Test/Command/InitCommandTest.php

@@ -17,7 +17,7 @@ use Composer\Test\TestCase;
 
 class InitCommandTest extends TestCase
 {
-    public function testParseValidAuthorString()
+    public function testParseValidAuthorString(): void
     {
         $command = new InitCommand;
         $author = $command->parseAuthorString('John Smith <john@example.com>');
@@ -25,7 +25,7 @@ class InitCommandTest extends TestCase
         $this->assertEquals('john@example.com', $author['email']);
     }
 
-    public function testParseValidAuthorStringWithoutEmail()
+    public function testParseValidAuthorStringWithoutEmail(): void
     {
         $command = new InitCommand;
         $author = $command->parseAuthorString('John Smith');
@@ -33,7 +33,7 @@ class InitCommandTest extends TestCase
         $this->assertNull($author['email']);
     }
 
-    public function testParseValidUtf8AuthorString()
+    public function testParseValidUtf8AuthorString(): void
     {
         $command = new InitCommand;
         $author = $command->parseAuthorString('Matti Meikäläinen <matti@example.com>');
@@ -41,7 +41,7 @@ class InitCommandTest extends TestCase
         $this->assertEquals('matti@example.com', $author['email']);
     }
 
-    public function testParseValidUtf8AuthorStringWithNonSpacingMarks()
+    public function testParseValidUtf8AuthorStringWithNonSpacingMarks(): void
     {
         // \xCC\x88 is UTF-8 for U+0308 diaeresis (umlaut) combining mark
         $utf8_expected = "Matti Meika\xCC\x88la\xCC\x88inen";
@@ -51,7 +51,7 @@ class InitCommandTest extends TestCase
         $this->assertEquals('matti@example.com', $author['email']);
     }
 
-    public function testParseNumericAuthorString()
+    public function testParseNumericAuthorString(): void
     {
         $command = new InitCommand;
         $author = $command->parseAuthorString('h4x0r <h4x@example.com>');
@@ -63,7 +63,7 @@ class InitCommandTest extends TestCase
      * Test scenario for issue #5631
      * @link https://github.com/composer/composer/issues/5631 Issue #5631
      */
-    public function testParseValidAlias1AuthorString()
+    public function testParseValidAlias1AuthorString(): void
     {
         $command = new InitCommand;
         $author = $command->parseAuthorString(
@@ -77,7 +77,7 @@ class InitCommandTest extends TestCase
      * Test scenario for issue #5631
      * @link https://github.com/composer/composer/issues/5631 Issue #5631
      */
-    public function testParseValidAlias2AuthorString()
+    public function testParseValidAlias2AuthorString(): void
     {
         $command = new InitCommand;
         $author = $command->parseAuthorString(
@@ -87,35 +87,35 @@ class InitCommandTest extends TestCase
         $this->assertEquals('john@example.com', $author['email']);
     }
 
-    public function testParseEmptyAuthorString()
+    public function testParseEmptyAuthorString(): void
     {
         $command = new InitCommand;
         self::expectException('InvalidArgumentException');
         $command->parseAuthorString('');
     }
 
-    public function testParseAuthorStringWithInvalidEmail()
+    public function testParseAuthorStringWithInvalidEmail(): void
     {
         $command = new InitCommand;
         self::expectException('InvalidArgumentException');
         $command->parseAuthorString('John Smith <john>');
     }
 
-    public function testNamespaceFromValidPackageName()
+    public function testNamespaceFromValidPackageName(): void
     {
         $command = new InitCommand;
         $namespace = $command->namespaceFromPackageName('new_projects.acme-extra/package-name');
         $this->assertEquals('NewProjectsAcmeExtra\PackageName', $namespace);
     }
 
-    public function testNamespaceFromInvalidPackageName()
+    public function testNamespaceFromInvalidPackageName(): void
     {
         $command = new InitCommand;
         $namespace = $command->namespaceFromPackageName('invalid-package-name');
         $this->assertNull($namespace);
     }
 
-    public function testNamespaceFromMissingPackageName()
+    public function testNamespaceFromMissingPackageName(): void
     {
         $command = new InitCommand;
         $namespace = $command->namespaceFromPackageName('');

tests/Composer/Test/Command/RunScriptCommandTest.php

@@ -24,7 +24,7 @@ class RunScriptCommandTest extends TestCase
      * @param bool $dev
      * @param bool $noDev
      */
-    public function testDetectAndPassDevModeToEventAndToDispatching($dev, $noDev)
+    public function testDetectAndPassDevModeToEventAndToDispatching($dev, $noDev): void
     {
         $scriptName = 'testScript';
 

tests/Composer/Test/ComposerTest.php

@@ -16,7 +16,7 @@ use Composer\Composer;
 
 class ComposerTest extends TestCase
 {
-    public function testSetGetPackage()
+    public function testSetGetPackage(): void
     {
         $composer = new Composer();
         $package = $this->getMockBuilder('Composer\Package\RootPackageInterface')->getMock();
@@ -25,7 +25,7 @@ class ComposerTest extends TestCase
         $this->assertSame($package, $composer->getPackage());
     }
 
-    public function testSetGetLocker()
+    public function testSetGetLocker(): void
     {
         $composer = new Composer();
         $locker = $this->getMockBuilder('Composer\Package\Locker')->disableOriginalConstructor()->getMock();
@@ -34,7 +34,7 @@ class ComposerTest extends TestCase
         $this->assertSame($locker, $composer->getLocker());
     }
 
-    public function testSetGetRepositoryManager()
+    public function testSetGetRepositoryManager(): void
     {
         $composer = new Composer();
         $manager = $this->getMockBuilder('Composer\Repository\RepositoryManager')->disableOriginalConstructor()->getMock();
@@ -43,7 +43,7 @@ class ComposerTest extends TestCase
         $this->assertSame($manager, $composer->getRepositoryManager());
     }
 
-    public function testSetGetDownloadManager()
+    public function testSetGetDownloadManager(): void
     {
         $composer = new Composer();
         $io = $this->getMockBuilder('Composer\IO\IOInterface')->getMock();
@@ -53,7 +53,7 @@ class ComposerTest extends TestCase
         $this->assertSame($manager, $composer->getDownloadManager());
     }
 
-    public function testSetGetInstallationManager()
+    public function testSetGetInstallationManager(): void
     {
         $composer = new Composer();
         $manager = $this->getMockBuilder('Composer\Installer\InstallationManager')->disableOriginalConstructor()->getMock();

tests/Composer/Test/Config/JsonConfigSourceTest.php

@@ -48,7 +48,7 @@ class JsonConfigSourceTest extends TestCase
         }
     }
 
-    public function testAddRepository()
+    public function testAddRepository(): void
     {
         $config = $this->workingDir.'/composer.json';
         copy($this->fixturePath('composer-repositories.json'), $config);
@@ -58,7 +58,7 @@ class JsonConfigSourceTest extends TestCase
         $this->assertFileEquals($this->fixturePath('config/config-with-exampletld-repository.json'), $config);
     }
 
-    public function testAddRepositoryWithOptions()
+    public function testAddRepositoryWithOptions(): void
     {
         $config = $this->workingDir.'/composer.json';
         copy($this->fixturePath('composer-repositories.json'), $config);
@@ -76,7 +76,7 @@ class JsonConfigSourceTest extends TestCase
         $this->assertFileEquals($this->fixturePath('config/config-with-exampletld-repository-and-options.json'), $config);
     }
 
-    public function testRemoveRepository()
+    public function testRemoveRepository(): void
     {
         $config = $this->workingDir.'/composer.json';
         copy($this->fixturePath('config/config-with-exampletld-repository.json'), $config);
@@ -86,7 +86,7 @@ class JsonConfigSourceTest extends TestCase
         $this->assertFileEquals($this->fixturePath('composer-repositories.json'), $config);
     }
 
-    public function testAddPackagistRepositoryWithFalseValue()
+    public function testAddPackagistRepositoryWithFalseValue(): void
     {
         $config = $this->workingDir.'/composer.json';
         copy($this->fixturePath('composer-repositories.json'), $config);
@@ -96,7 +96,7 @@ class JsonConfigSourceTest extends TestCase
         $this->assertFileEquals($this->fixturePath('config/config-with-packagist-false.json'), $config);
     }
 
-    public function testRemovePackagist()
+    public function testRemovePackagist(): void
     {
         $config = $this->workingDir.'/composer.json';
         copy($this->fixturePath('config/config-with-packagist-false.json'), $config);
@@ -117,7 +117,7 @@ class JsonConfigSourceTest extends TestCase
      *
      * @dataProvider provideAddLinkData
      */
-    public function testAddLink($sourceFile, $type, $name, $value, $compareAgainst)
+    public function testAddLink($sourceFile, $type, $name, $value, $compareAgainst): void
     {
         $composerJson = $this->workingDir.'/composer.json';
         copy($sourceFile, $composerJson);
@@ -138,7 +138,7 @@ class JsonConfigSourceTest extends TestCase
      *
      * @dataProvider provideRemoveLinkData
      */
-    public function testRemoveLink($sourceFile, $type, $name, $compareAgainst)
+    public function testRemoveLink($sourceFile, $type, $name, $compareAgainst): void
     {
         $composerJson = $this->workingDir.'/composer.json';
         copy($sourceFile, $composerJson);

tests/Composer/Test/ConfigTest.php

@@ -23,7 +23,7 @@ class ConfigTest extends TestCase
      * @param mixed[] $localConfig
      * @param ?mixed[] $systemConfig
      */
-    public function testAddPackagistRepository($expected, $localConfig, $systemConfig = null)
+    public function testAddPackagistRepository($expected, $localConfig, $systemConfig = null): void
     {
         $config = new Config(false);
         if ($systemConfig) {
@@ -141,7 +141,7 @@ class ConfigTest extends TestCase
         return $data;
     }
 
-    public function testPreferredInstallAsString()
+    public function testPreferredInstallAsString(): void
     {
         $config = new Config(false);
         $config->merge(array('config' => array('preferred-install' => 'source')));
@@ -150,7 +150,7 @@ class ConfigTest extends TestCase
         $this->assertEquals('dist', $config->get('preferred-install'));
     }
 
-    public function testMergePreferredInstall()
+    public function testMergePreferredInstall(): void
     {
         $config = new Config(false);
         $config->merge(array('config' => array('preferred-install' => 'dist')));
@@ -162,7 +162,7 @@ class ConfigTest extends TestCase
         $this->assertEquals(array('foo/*' => 'source', '*' => 'dist'), $config->get('preferred-install'));
     }
 
-    public function testMergeGithubOauth()
+    public function testMergeGithubOauth(): void
     {
         $config = new Config(false);
         $config->merge(array('config' => array('github-oauth' => array('foo' => 'bar'))));
@@ -171,7 +171,7 @@ class ConfigTest extends TestCase
         $this->assertEquals(array('foo' => 'bar', 'bar' => 'baz'), $config->get('github-oauth'));
     }
 
-    public function testVarReplacement()
+    public function testVarReplacement(): void
     {
         $config = new Config(false);
         $config->merge(array('config' => array('a' => 'b', 'c' => '{$a}')));
@@ -183,7 +183,7 @@ class ConfigTest extends TestCase
         $this->assertEquals($home.'/foo', $config->get('cache-dir'));
     }
 
-    public function testRealpathReplacement()
+    public function testRealpathReplacement(): void
     {
         $config = new Config(false, '/foo/bar');
         $config->merge(array('config' => array(
@@ -198,7 +198,7 @@ class ConfigTest extends TestCase
         $this->assertEquals('/baz', $config->get('cache-dir'));
     }
 
-    public function testStreamWrapperDirs()
+    public function testStreamWrapperDirs(): void
     {
         $config = new Config(false, '/foo/bar');
         $config->merge(array('config' => array(
@@ -208,7 +208,7 @@ class ConfigTest extends TestCase
         $this->assertEquals('s3://baz', $config->get('cache-dir'));
     }
 
-    public function testFetchingRelativePaths()
+    public function testFetchingRelativePaths(): void
     {
         $config = new Config(false, '/foo/bar');
         $config->merge(array('config' => array(
@@ -222,7 +222,7 @@ class ConfigTest extends TestCase
         $this->assertEquals('vendor/foo', $config->get('bin-dir', Config::RELATIVE_PATHS));
     }
 
-    public function testOverrideGithubProtocols()
+    public function testOverrideGithubProtocols(): void
     {
         $config = new Config(false);
         $config->merge(array('config' => array('github-protocols' => array('https', 'ssh'))));
@@ -231,7 +231,7 @@ class ConfigTest extends TestCase
         $this->assertEquals(array('https'), $config->get('github-protocols'));
     }
 
-    public function testGitDisabledByDefaultInGithubProtocols()
+    public function testGitDisabledByDefaultInGithubProtocols(): void
     {
         $config = new Config(false);
         $config->merge(array('config' => array('github-protocols' => array('https', 'git'))));
@@ -247,7 +247,7 @@ class ConfigTest extends TestCase
      *
      * @param string $url
      */
-    public function testAllowedUrlsPass($url)
+    public function testAllowedUrlsPass($url): void
     {
         $config = new Config(false);
         $config->prohibitUrlByConfig($url);
@@ -258,7 +258,7 @@ class ConfigTest extends TestCase
      *
      * @param string $url
      */
-    public function testProhibitedUrlsThrowException($url)
+    public function testProhibitedUrlsThrowException($url): void
     {
         self::expectException('Composer\Downloader\TransportException');
         self::expectExceptionMessage('Your configuration does not allow connections to ' . $url);
@@ -311,7 +311,7 @@ class ConfigTest extends TestCase
     /**
      * @group TLS
      */
-    public function testDisableTlsCanBeOverridden()
+    public function testDisableTlsCanBeOverridden(): void
     {
         $config = new Config;
         $config->merge(
@@ -324,7 +324,7 @@ class ConfigTest extends TestCase
         $this->assertTrue($config->get('disable-tls'));
     }
 
-    public function testProcessTimeout()
+    public function testProcessTimeout(): void
     {
         Platform::putEnv('COMPOSER_PROCESS_TIMEOUT', '0');
         $config = new Config(true);
@@ -334,7 +334,7 @@ class ConfigTest extends TestCase
         $this->assertEquals(0, $result);
     }
 
-    public function testHtaccessProtect()
+    public function testHtaccessProtect(): void
     {
         Platform::putEnv('COMPOSER_HTACCESS_PROTECT', '0');
         $config = new Config(true);
@@ -344,7 +344,7 @@ class ConfigTest extends TestCase
         $this->assertEquals(0, $result);
     }
 
-    public function testGetSourceOfValue()
+    public function testGetSourceOfValue(): void
     {
         Platform::clearEnv('COMPOSER_PROCESS_TIMEOUT');
 
@@ -360,7 +360,7 @@ class ConfigTest extends TestCase
         $this->assertSame('phpunit-test', $config->getSourceOfValue('process-timeout'));
     }
 
-    public function testGetSourceOfValueEnvVariables()
+    public function testGetSourceOfValueEnvVariables(): void
     {
         Platform::putEnv('COMPOSER_HTACCESS_PROTECT', '0');
         $config = new Config;

tests/Composer/Test/Console/HtmlOutputFormatterTest.php

@@ -18,7 +18,7 @@ use Symfony\Component\Console\Formatter\OutputFormatterStyle;
 
 class HtmlOutputFormatterTest extends TestCase
 {
-    public function testFormatting()
+    public function testFormatting(): void
     {
         $formatter = new HtmlOutputFormatter(array(
             'warning' => new OutputFormatterStyle('black', 'yellow'),

tests/Composer/Test/DefaultConfigTest.php

@@ -19,7 +19,7 @@ class DefaultConfigTest extends TestCase
     /**
      * @group TLS
      */
-    public function testDefaultValuesAreAsExpected()
+    public function testDefaultValuesAreAsExpected(): void
     {
         $config = new Config;
         $this->assertFalse($config->get('disable-tls'));