Enable strict types on all files

.php-cs-fixer.php

@@ -71,7 +71,7 @@ return $config->setRules([
         'random_api_migration' => true,
         'ternary_to_null_coalescing' => true,
         'phpdoc_to_param_type' => true,
-        //'declare_strict_types' => true,
+        'declare_strict_types' => true,
 
         // TODO php 7.4 migration (one day..)
         // 'phpdoc_to_property_type' => true,

src/Composer/Autoload/AutoloadGenerator.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Autoload/ClassMapGenerator.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Autoload/PhpFileCleaner.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Cache.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/AboutCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/ArchiveCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/BaseCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/BaseDependencyCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/CheckPlatformReqsCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/ClearCacheCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/ConfigCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/CreateProjectCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/DependsCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/DiagnoseCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/DumpAutoloadCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/ExecCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/FundCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/GlobalCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/HomeCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/InitCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/InstallCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/LicensesCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/OutdatedCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/PackageDiscoveryTrait.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/ProhibitsCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/ReinstallCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/RemoveCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/RequireCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/RunScriptCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/ScriptAliasCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/SearchCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/SelfUpdateCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/ShowCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/StatusCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/SuggestsCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/UpdateCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Command/ValidateCommand.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Compiler.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Composer.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Config.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Config/ConfigSourceInterface.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Config/JsonConfigSource.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Console/Application.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Console/GithubActionError.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Console/HtmlOutputFormatter.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/Decisions.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/DefaultPolicy.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/GenericRule.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/LocalRepoTransaction.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/LockTransaction.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/MultiConflictRule.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/Operation/InstallOperation.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/Operation/MarkAliasInstalledOperation.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/Operation/MarkAliasUninstalledOperation.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/Operation/OperationInterface.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/Operation/SolverOperation.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/Operation/UninstallOperation.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/Operation/UpdateOperation.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/PolicyInterface.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/Pool.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/PoolBuilder.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/PoolOptimizer.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/Problem.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/Request.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/Rule.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/Rule2Literals.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/RuleSet.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/RuleSetGenerator.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/RuleSetIterator.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/RuleWatchChain.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/RuleWatchGraph.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/RuleWatchNode.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/Solver.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/SolverBugException.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/SolverProblemsException.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/DependencyResolver/Transaction.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/ArchiveDownloader.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/ChangeReportInterface.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/DownloadManager.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/DownloaderInterface.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/DvcsDownloaderInterface.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/FileDownloader.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/FilesystemException.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/FossilDownloader.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/GitDownloader.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/GzipDownloader.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/HgDownloader.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/MaxFileSizeExceededException.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/PathDownloader.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/PerforceDownloader.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/PharDownloader.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/RarDownloader.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/SvnDownloader.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/TarDownloader.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/TransportException.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/VcsCapableDownloaderInterface.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/VcsDownloader.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/XzDownloader.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.

src/Composer/Downloader/ZipDownloader.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of Composer.