Update master

.github/workflows/shepherd.yml

@@ -8,6 +8,9 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+    - uses: shivammathur/setup-php@v2
+      with:
+        php-version: '7.4'
 
     - name: Install dependencies
       run: composer install --prefer-dist --no-progress --no-suggest

composer.json

@@ -36,8 +36,7 @@
         "sebastian/diff": "^4.0",
         "symfony/console": "^3.4.17 || ^4.1.6 || ^5.0 || ^6.0",
         "symfony/filesystem": "^5.4 || ^6.0",
-        "symfony/polyfill-php80": "^1.25",
-        "webmozart/path-util": "^2.3"
+        "symfony/polyfill-php80": "^1.25"
     },
     "provide": {
         "psalm/psalm": "self.version"

dictionaries/CallMap.php

@@ -418,7 +418,9 @@
 'array_uintersect_assoc\'1' => ['associative-array', 'array'=>'array', 'rest'=>'array', 'arr3'=>'array', 'arg4'=>'array|callable', '...rest='=>'array|callable(mixed,mixed):int'],
 'array_uintersect_uassoc' => ['associative-array', 'array'=>'array', 'rest'=>'array', 'data_compare_func'=>'callable(mixed,mixed):int', 'key_compare_func'=>'callable(mixed,mixed):int'],
 'array_uintersect_uassoc\'1' => ['associative-array', 'array'=>'array', 'rest'=>'array', 'arr3'=>'array', 'arg4'=>'array|callable(mixed,mixed):int', 'arg5'=>'array|callable(mixed,mixed):int', '...rest='=>'array|callable(mixed,mixed):int'],
-'array_unique' => ['associative-array', 'array'=>'array', 'flags='=>'int'],
+'array_unique' => ['array', 'array'=>'array', 'flags='=>'0'],
+'array_unique\'1' => ['array<int|float|string|null>', 'array'=>'array<int|float|string|null>', 'flags='=>'1'],
+'array_unique\'2' => ['array<int|float|string|bool|\Stringable|null>', 'array'=>'array<int|float|string|bool|\Stringable|null>', 'flags='=>'2|5'],
 'array_unshift' => ['int', '&rw_array'=>'array', 'values'=>'mixed', '...vars='=>'mixed'],
 'array_values' => ['list<mixed>', 'array'=>'array'],
 'array_walk' => ['bool', '&rw_array'=>'array', 'callback'=>'callable', 'arg='=>'mixed'],

dictionaries/CallMap_historical.php

@@ -9561,7 +9561,9 @@
     'array_uintersect_assoc\'1' => ['associative-array', 'array'=>'array', 'rest'=>'array', 'arr3'=>'array', 'arg4'=>'array|callable', '...rest='=>'array|callable(mixed,mixed):int'],
     'array_uintersect_uassoc' => ['associative-array', 'array'=>'array', 'rest'=>'array', 'data_compare_func'=>'callable(mixed,mixed):int', 'key_compare_func'=>'callable(mixed,mixed):int'],
     'array_uintersect_uassoc\'1' => ['associative-array', 'array'=>'array', 'rest'=>'array', 'arr3'=>'array', 'arg4'=>'array|callable(mixed,mixed):int', 'arg5'=>'array|callable(mixed,mixed):int', '...rest='=>'array|callable(mixed,mixed):int'],
-    'array_unique' => ['associative-array', 'array'=>'array', 'flags='=>'int'],
+    'array_unique' => ['array', 'array'=>'array', 'flags='=>'0'],
+    'array_unique\'1' => ['array<int|float|string|null>', 'array'=>'array<int|float|string|null>', 'flags='=>'1'],
+    'array_unique\'2' => ['array<int|float|string|bool|\Stringable|null>', 'array'=>'array<int|float|string|bool|\Stringable|null>', 'flags='=>'2|5'],
     'array_unshift' => ['int', '&rw_array'=>'array', 'values'=>'mixed', '...vars='=>'mixed'],
     'array_values' => ['list<mixed>', 'array'=>'array'],
     'array_walk' => ['bool', '&rw_array'=>'array', 'callback'=>'callable', 'arg='=>'mixed'],

src/Psalm/Config.php

@@ -2130,6 +2130,11 @@ public function visitStubFiles(Codebase $codebase, ?Progress $progress = null):
             $this->internal_stubs[] = $ext_phpredis_path;
         }
 
+        if (extension_loaded('apcu')) {
+            $ext_apcu_path = $dir_lvl_2 . DIRECTORY_SEPARATOR . 'stubs' . DIRECTORY_SEPARATOR . 'ext-apcu.phpstub';
+            $this->internal_stubs[] = $ext_apcu_path;
+        }
+
         foreach ($this->internal_stubs as $stub_path) {
             if (!file_exists($stub_path)) {
                 throw new UnexpectedValueException('Cannot locate ' . $stub_path);

src/Psalm/Internal/Analyzer/Statements/Expression/CastAnalyzer.php

@@ -192,22 +192,42 @@ public static function analyze(
         }
 
         if ($stmt instanceof PhpParser\Node\Expr\Cast\Object_) {
-            $was_inside_general_use = $context->inside_general_use;
-            $context->inside_general_use = true;
-            if (ExpressionAnalyzer::analyze($statements_analyzer, $stmt->expr, $context) === false) {
-                $context->inside_general_use = $was_inside_general_use;
-
+            if (!self::checkExprGeneralUse($statements_analyzer, $stmt, $context)) {
                 return false;
             }
-            $context->inside_general_use = $was_inside_general_use;
 
-            $type = new Union([new TNamedObject('stdClass')]);
+            $permissible_atomic_types = [];
+            $all_permissible = false;
 
-            $maybe_type = $statements_analyzer->node_data->getType($stmt->expr);
+            if ($stmt_expr_type = $statements_analyzer->node_data->getType($stmt->expr)) {
+                if ($stmt_expr_type->isObjectType()) {
+                    self::handleRedundantCast($stmt_expr_type, $statements_analyzer, $stmt);
+                }
+
+                $all_permissible = true;
+
+                foreach ($stmt_expr_type->getAtomicTypes() as $type) {
+                    if ($type instanceof Scalar) {
+                        $objWithProps = new TObjectWithProperties(['scalar' => new Union([$type])]);
+                        $permissible_atomic_types[] = $objWithProps;
+                    } elseif ($type instanceof TKeyedArray) {
+                        $permissible_atomic_types[] = new TObjectWithProperties($type->properties);
+                    } else {
+                        $all_permissible = false;
+                        break;
+                    }
+                }
+            }
+
+            if ($permissible_atomic_types && $all_permissible) {
+                $type = TypeCombiner::combine($permissible_atomic_types);
+            } else {
+                $type = Type::getObject();
+            }
 
             if ($statements_analyzer->data_flow_graph instanceof VariableUseGraph
             ) {
-                $type->parent_nodes = $maybe_type->parent_nodes ?? [];
+                $type->parent_nodes = $stmt_expr_type->parent_nodes ?? [];
             }
 
             $statements_analyzer->node_data->setType($stmt, $type);
@@ -216,14 +236,9 @@ public static function analyze(
         }
 
         if ($stmt instanceof PhpParser\Node\Expr\Cast\Array_) {
-            $was_inside_general_use = $context->inside_general_use;
-            $context->inside_general_use = true;
-            if (ExpressionAnalyzer::analyze($statements_analyzer, $stmt->expr, $context) === false) {
-                $context->inside_general_use = $was_inside_general_use;
-
+            if (!self::checkExprGeneralUse($statements_analyzer, $stmt, $context)) {
                 return false;
             }
-            $context->inside_general_use = $was_inside_general_use;
 
             $permissible_atomic_types = [];
             $all_permissible = false;
@@ -466,6 +481,18 @@ public static function castStringAttempt(
         return $str_type;
     }
 
+    private static function checkExprGeneralUse(
+        StatementsAnalyzer $statements_analyzer,
+        PhpParser\Node\Expr\Cast $stmt,
+        Context $context
+    ): bool {
+        $was_inside_general_use = $context->inside_general_use;
+        $context->inside_general_use = true;
+        $retVal = ExpressionAnalyzer::analyze($statements_analyzer, $stmt->expr, $context);
+        $context->inside_general_use = $was_inside_general_use;
+        return $retVal;
+    }
+
     private static function handleRedundantCast(
         Union $maybe_type,
         StatementsAnalyzer $statements_analyzer,

src/Psalm/Internal/Cli/Plugin.php

@@ -9,7 +9,6 @@
 use Psalm\Internal\PluginManager\Command\ShowCommand;
 use Psalm\Internal\PluginManager\PluginListFactory;
 use Symfony\Component\Console\Application;
-use Symfony\Component\Console\Input\InputOption;
 
 use function dirname;
 use function getcwd;
@@ -44,10 +43,6 @@ public static function run(): void
             new DisableCommand($plugin_list_factory),
         ]);
 
-        $app->getDefinition()->addOption(
-            new InputOption('config', 'c', InputOption::VALUE_REQUIRED, 'Path to Psalm config file')
-        );
-
         $app->setDefaultCommand('show');
         $app->run();
     }

src/Psalm/Internal/Codebase/Reflection.php

@@ -419,6 +419,7 @@ public function registerFunction(string $function_id): ?bool
         return null;
     }
 
+    /** @psalm-suppress UndefinedClass,TypeDoesNotContainType 7.4 has no ReflectionUnionType */
     public static function getPsalmTypeFromReflectionType(?ReflectionType $reflection_type = null): Union
     {
         if (!$reflection_type) {

src/Psalm/Internal/LanguageServer/LanguageServer.php

@@ -418,7 +418,7 @@ public function emitIssues(array $uris): void
                 } else {
                     // the Diagnostic constructor only takes `int` for the code, but the property can be
                     // `int` or `string`, so we set the property directly because we want to use a `string`
-                        /** @psalm-suppress InvalidPropertyAssignmentValue */
+                    /** @psalm-suppress InvalidPropertyAssignmentValue */
                     $diagnostic->code = $code;
                 }
 

src/Psalm/Internal/LanguageServer/Server/TextDocument.php

@@ -380,7 +380,6 @@ public function codeAction(TextDocumentIdentifier $textDocument, Range $range):
                     $indentation = $matches[1] ?? '';
                 }
 
-
                 /**
                  * Suppress Psalm because ther are bugs in how
                  * LanguageServer's signature of WorkspaceEdit is declared:

src/Psalm/Internal/PluginManager/Command/DisableCommand.php

@@ -7,6 +7,7 @@
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Console\Style\SymfonyStyle;
 use UnexpectedValueException;
@@ -41,6 +42,7 @@ protected function configure(): void
                 InputArgument::REQUIRED,
                 'Plugin name (fully qualified class name or composer package name)'
             )
+            ->addOption('config', 'c', InputOption::VALUE_REQUIRED, 'Path to Psalm config file')
             ->addUsage('vendor/plugin-package-name [-c path/to/psalm.xml]');
         $this->addUsage('\'Plugin\Class\Name\' [-c path/to/psalm.xml]');
     }

src/Psalm/Internal/PluginManager/Command/EnableCommand.php

@@ -7,6 +7,7 @@
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Console\Style\SymfonyStyle;
 use UnexpectedValueException;
@@ -41,6 +42,7 @@ protected function configure(): void
                 InputArgument::REQUIRED,
                 'Plugin name (fully qualified class name or composer package name)'
             )
+            ->addOption('config', 'c', InputOption::VALUE_REQUIRED, 'Path to Psalm config file')
             ->addUsage('vendor/plugin-package-name [-c path/to/psalm.xml]');
         $this->addUsage('\'Plugin\Class\Name\' [-c path/to/psalm.xml]');
     }

src/Psalm/Internal/PluginManager/Command/ShowCommand.php

@@ -5,6 +5,7 @@
 use Psalm\Internal\PluginManager\PluginListFactory;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Console\Style\SymfonyStyle;
 use UnexpectedValueException;
@@ -37,6 +38,7 @@ protected function configure(): void
         $this
             ->setName('show')
             ->setDescription('Lists enabled and available plugins')
+            ->addOption('config', 'c', InputOption::VALUE_REQUIRED, 'Path to Psalm config file')
             ->addUsage('[-c path/to/psalm.xml]');
     }
 

src/Psalm/Internal/Provider/ClassLikeStorageCacheProvider.php

@@ -13,17 +13,18 @@
 use function file_put_contents;
 use function filemtime;
 use function get_class;
+use function hash;
 use function igbinary_serialize;
 use function igbinary_unserialize;
 use function is_dir;
 use function mkdir;
 use function serialize;
-use function sha1;
 use function strtolower;
 use function unlink;
 use function unserialize;
 
 use const DIRECTORY_SEPARATOR;
+use const PHP_VERSION_ID;
 
 /**
  * @internal
@@ -111,7 +112,8 @@ public function getLatestFromCache(
 
     private function getCacheHash(?string $file_path, ?string $file_contents): string
     {
-        return sha1(($file_path ? $file_contents : '') . $this->modified_timestamps);
+        $data = ($file_path ? $file_contents : '') . $this->modified_timestamps;
+        return PHP_VERSION_ID >= 8_01_00 ? hash('xxh128', $data) : hash('md4', $data);
     }
 
     /**
@@ -161,9 +163,13 @@ private function getCacheLocationForClass(
             mkdir($parser_cache_directory, 0777, true);
         }
 
+        $data = $file_path ? strtolower($file_path) . ' ' : '';
+        $data .= $fq_classlike_name_lc;
+        $file_path_sha = PHP_VERSION_ID >= 8_01_00 ? hash('xxh128', $data) : hash('md4', $data);
+
         return $parser_cache_directory
             . DIRECTORY_SEPARATOR
-            . sha1(($file_path ? strtolower($file_path) . ' ' : '') . $fq_classlike_name_lc)
+            . $file_path_sha
             . ($this->config->use_igbinary ? '-igbinary' : '');
     }
 }

src/Psalm/Internal/Provider/FakeFileProvider.php

@@ -4,7 +4,6 @@
 
 use function microtime;
 use function strpos;
-use function strtolower;
 
 /**
  * @internal
@@ -28,8 +27,8 @@ public function fileExists(string $file_path): bool
 
     public function getContents(string $file_path, bool $go_to_source = false): string
     {
-        if (!$go_to_source && isset($this->temp_files[strtolower($file_path)])) {
-            return $this->temp_files[strtolower($file_path)];
+        if (!$go_to_source && isset($this->temp_files[$file_path])) {
+            return $this->temp_files[$file_path];
         }
 
         return $this->fake_files[$file_path] ?? parent::getContents($file_path);
@@ -42,8 +41,8 @@ public function setContents(string $file_path, string $file_contents): void
 
     public function setOpenContents(string $file_path, string $file_contents): void
     {
-        if (isset($this->fake_files[strtolower($file_path)])) {
-            $this->fake_files[strtolower($file_path)] = $file_contents;
+        if (isset($this->fake_files[$file_path])) {
+            $this->fake_files[$file_path] = $file_contents;
         }
     }
 
@@ -69,7 +68,7 @@ public function getFilesInDir(string $dir_path, array $file_extensions, callable
         $file_paths = parent::getFilesInDir($dir_path, $file_extensions, $filter);
 
         foreach ($this->fake_files as $file_path => $_) {
-            if (strpos(strtolower($file_path), strtolower($dir_path)) === 0) {
+            if (strpos($file_path, $dir_path) === 0) {
                 $file_paths[] = $file_path;
             }
         }