Upgrade PHPStan

composer.json

@@ -16,9 +16,9 @@
   "require-dev": {
     "doctrine/coding-standard": "^5.0",
     "phpbench/phpbench": "^0.14.0",
-    "phpstan/phpstan": "0.10.5",
+    "phpstan/phpstan": "^0.11.4",
-    "phpstan/phpstan-phpunit": "0.10.0",
+    "phpstan/phpstan-phpunit": "^0.11.0",
-    "phpstan/phpstan-strict-rules": "0.10.1",
+    "phpstan/phpstan-strict-rules": "^0.11.0",
     "phpunit/phpcov": "^5.0",
     "phpunit/phpunit": "^7.2",
     "psr/http-message": "^1.0",

phpstan.neon.dist

@@ -8,6 +8,8 @@ parameters:
     ignoreErrors:
         - "~Construct empty\\(\\) is not allowed\\. Use more strict comparison~"
         - "~(Method|Property) .+::.+(\\(\\))? (has parameter \\$\\w+ with no|has no return|has no) typehint specified~"
+        - "~Variable property access on .+~"
+        - "~Variable method call on static\\(GraphQL\\\\Server\\\\ServerConfig\\)~" # TODO get rid of
 
 includes:
 	- vendor/phpstan/phpstan-phpunit/extension.neon

src/Error/Warning.php

@@ -61,8 +61,6 @@ final class Warning
         } elseif ($suppress === false) {
             self::$enableWarnings = self::ALL;
         } else {
-            $suppress = (int) $suppress;
-
             self::$enableWarnings &= ~$suppress;
         }
     }
@@ -86,8 +84,6 @@ final class Warning
         } elseif ($enable === false) {
             self::$enableWarnings = 0;
         } else {
-            $enable = (int) $enable;
-
             self::$enableWarnings |= $enable;
         }
     }

src/Executor/ExecutionResult.php

@@ -154,7 +154,7 @@ class ExecutionResult implements JsonSerializable
         }
 
         if (! empty($this->extensions)) {
-            $result['extensions'] = (array) $this->extensions;
+            $result['extensions'] = $this->extensions;
         }
 
         return $result;

src/Server/OperationParams.php

@@ -62,13 +62,10 @@ class OperationParams
      * Creates an instance from given array
      *
      * @param mixed[] $params
-     * @param bool    $readonly
-     *
-     * @return OperationParams
      *
      * @api
      */
-    public static function create(array $params, $readonly = false)
+    public static function create(array $params, bool $readonly = false) : OperationParams
     {
         $instance = new static();
 
@@ -108,7 +105,7 @@ class OperationParams
         $instance->operation  = $params['operationname'];
         $instance->variables  = $params['variables'];
         $instance->extensions = $params['extensions'];
-        $instance->readOnly   = (bool) $readonly;
+        $instance->readOnly   = $readonly;
 
         // Apollo server/client compatibility: look for the queryid in extensions
         if (isset($instance->extensions['persistedQuery']['sha256Hash']) && empty($instance->query) && empty($instance->queryId)) {

src/Server/ServerConfig.php

@@ -225,15 +225,11 @@ class ServerConfig
     /**
      * Allow batching queries (disabled by default)
      *
-     * @param bool $enableBatching
-     *
-     * @return self
-     *
      * @api
      */
-    public function setQueryBatching($enableBatching)
+    public function setQueryBatching(bool $enableBatching) : self
     {
-        $this->queryBatching = (bool) $enableBatching;
+        $this->queryBatching = $enableBatching;
 
         return $this;
     }

src/Type/Definition/BooleanType.php

@@ -58,11 +58,11 @@ class BooleanType extends ScalarType
      */
     public function parseLiteral($valueNode, ?array $variables = null)
     {
-        if ($valueNode instanceof BooleanValueNode) {
+        if (! $valueNode instanceof BooleanValueNode) {
-            return (bool) $valueNode->value;
-        }
-
             // Intentionally without message, as all information already in wrapped Exception
             throw new Exception();
         }
+
+        return $valueNode->value;
+    }
 }

src/Type/Definition/Directive.php

@@ -40,7 +40,7 @@ class Directive
     public $locations;
 
     /** @var FieldArgument[] */
-    public $args;
+    public $args = [];
 
     /** @var DirectiveDefinitionNode|null */
     public $astNode;

src/Type/Definition/ListOfType.php

@@ -20,15 +20,9 @@ class ListOfType extends Type implements WrappingType, OutputType, NullableType,
         $this->ofType = Type::assertType($type);
     }
 
-    /**
+    public function toString() : string
-     * @return string
-     */
-    public function toString()
     {
-        $type = $this->ofType;
+        return '[' . $this->ofType->toString() . ']';
-        $str  = $type instanceof Type ? $type->toString() : (string) $type;
-
-        return '[' . $str . ']';
     }
 
     /**

src/Utils/BreakingChangesFinder.php

@@ -531,12 +531,12 @@ class BreakingChangesFinder
                         ];
                     }
                     // Check if a non-null arg was added to the field
-                    foreach ($newTypeFields[$fieldName]->args as $newArgDef) {
+                    foreach ($newTypeFields[$fieldName]->args as $newTypeFieldArgDef) {
                         $oldArgs   = $oldTypeFields[$fieldName]->args;
                         $oldArgDef = Utils::find(
                             $oldArgs,
-                            static function ($arg) use ($newArgDef) {
+                            static function ($arg) use ($newTypeFieldArgDef) {
-                                return $arg->name === $newArgDef->name;
+                                return $arg->name === $newTypeFieldArgDef->name;
                             }
                         );
 
@@ -545,8 +545,8 @@ class BreakingChangesFinder
                         }
 
                         $newTypeName = $newType->name;
-                        $newArgName  = $newArgDef->name;
+                        $newArgName  = $newTypeFieldArgDef->name;
-                        if ($newArgDef->getType() instanceof NonNull) {
+                        if ($newTypeFieldArgDef->getType() instanceof NonNull) {
                             $breakingChanges[] = [
                                 'type'        => self::BREAKING_CHANGE_NON_NULL_ARG_ADDED,
                                 'description' => "A non-null arg ${newArgName} on ${newTypeName}.${fieldName} was added",
@@ -668,7 +668,7 @@ class BreakingChangesFinder
     {
         $removedArgs = [];
         $newArgMap   = self::getArgumentMapForDirective($newDirective);
-        foreach ((array) $oldDirective->args as $arg) {
+        foreach ($oldDirective->args as $arg) {
             if (isset($newArgMap[$arg->name])) {
                 continue;
             }
@@ -727,7 +727,7 @@ class BreakingChangesFinder
     {
         $addedArgs = [];
         $oldArgMap = self::getArgumentMapForDirective($oldDirective);
-        foreach ((array) $newDirective->args as $arg) {
+        foreach ($newDirective->args as $arg) {
             if (isset($oldArgMap[$arg->name])) {
                 continue;
             }

src/Utils/TypeInfo.php

@@ -178,7 +178,7 @@ class TypeInfo
             $nestedTypes = array_merge($nestedTypes, $type->getInterfaces());
         }
         if ($type instanceof ObjectType || $type instanceof InterfaceType) {
-            foreach ((array) $type->getFields() as $fieldName => $field) {
+            foreach ($type->getFields() as $fieldName => $field) {
                 if (! empty($field->args)) {
                     $fieldArgTypes = array_map(
                         static function (FieldArgument $arg) {
@@ -193,12 +193,12 @@ class TypeInfo
             }
         }
         if ($type instanceof InputObjectType) {
-            foreach ((array) $type->getFields() as $fieldName => $field) {
+            foreach ($type->getFields() as $fieldName => $field) {
                 $nestedTypes[] = $field->getType();
             }
         }
-        foreach ($nestedTypes as $type) {
+        foreach ($nestedTypes as $nestedType) {
-            $typeMap = self::extractTypes($type, $typeMap);
+            $typeMap = self::extractTypes($nestedType, $typeMap);
         }
 
         return $typeMap;

src/Utils/Utils.php

@@ -264,8 +264,8 @@ class Utils
         $grouped = [];
         foreach ($traversable as $key => $value) {
             $newKeys = (array) $keyFn($value, $key);
-            foreach ($newKeys as $key) {
+            foreach ($newKeys as $newKey) {
-                $grouped[$key][] = $value;
+                $grouped[$newKey][] = $value;
             }
         }
 

src/Validator/Rules/QueryDepth.php

@@ -98,14 +98,12 @@ class QueryDepth extends QuerySecurityRule
 
     /**
      * Set max query depth. If equal to 0 no check is done. Must be greater or equal to 0.
-     *
-     * @param int $maxQueryDepth
      */
-    public function setMaxQueryDepth($maxQueryDepth)
+    public function setMaxQueryDepth(int $maxQueryDepth)
     {
         $this->checkIfGreaterOrEqualToZero('maxQueryDepth', $maxQueryDepth);
 
-        $this->maxQueryDepth = (int) $maxQueryDepth;
+        $this->maxQueryDepth = $maxQueryDepth;
     }
 
     public static function maxQueryDepthErrorMessage($max, $count)