simPod / graphql-php

src/Language/Printer.php

Spacing +48 added lines, -48 removed lines

@@ -99,19 +99,19 @@ 
             $ast,
             [
                 'leave' => [
-                    NodeKind::NAME => static function (NameNode $node) {
+                    NodeKind::NAME => static function(NameNode $node) {
                         return '' . $node->value;
                     },
 
-                    NodeKind::VARIABLE => static function (VariableNode $node) {
+                    NodeKind::VARIABLE => static function(VariableNode $node) {
                         return '$' . $node->name;
                     },
 
-                    NodeKind::DOCUMENT => function (DocumentNode $node) {
+                    NodeKind::DOCUMENT => function(DocumentNode $node) {
                         return $this->join($node->definitions, "\n\n") . "\n";
                     },
 
-                    NodeKind::OPERATION_DEFINITION => function (OperationDefinitionNode $node) {
+                    NodeKind::OPERATION_DEFINITION => function(OperationDefinitionNode $node) {
                         $op           = $node->operation;
                         $name         = $node->name;
                         $varDefs      = $this->wrap('(', $this->join($node->variableDefinitions, ', '), ')');
@@ -120,12 +120,12 @@ 
 
                         // Anonymous queries with no directives or variable definitions can use
                         // the query short form.
-                        return ! $name && ! $directives && ! $varDefs && $op === 'query'
+                        return !$name && !$directives && !$varDefs && $op === 'query'
                             ? $selectionSet
                             : $this->join([$op, $this->join([$name, $varDefs]), $directives, $selectionSet], ' ');
                     },
 
-                    NodeKind::VARIABLE_DEFINITION => function (VariableDefinitionNode $node) {
+                    NodeKind::VARIABLE_DEFINITION => function(VariableDefinitionNode $node) {
                         return $node->variable
                             . ': '
                             . $node->type
@@ -133,11 +133,11 @@ 
                             . $this->wrap(' ', $this->join($node->directives, ' '));
                     },
 
-                    NodeKind::SELECTION_SET => function (SelectionSetNode $node) {
+                    NodeKind::SELECTION_SET => function(SelectionSetNode $node) {
                         return $this->block($node->selections);
                     },
 
-                    NodeKind::FIELD => function (FieldNode $node) {
+                    NodeKind::FIELD => function(FieldNode $node) {
                         return $this->join(
                             [
                                 $this->wrap('', $node->alias, ': ') . $node->name . $this->wrap(
@@ -152,15 +152,15 @@ 
                         );
                     },
 
-                    NodeKind::ARGUMENT => static function (ArgumentNode $node) {
+                    NodeKind::ARGUMENT => static function(ArgumentNode $node) {
                         return $node->name . ': ' . $node->value;
                     },
 
-                    NodeKind::FRAGMENT_SPREAD => function (FragmentSpreadNode $node) {
+                    NodeKind::FRAGMENT_SPREAD => function(FragmentSpreadNode $node) {
                         return '...' . $node->name . $this->wrap(' ', $this->join($node->directives, ' '));
                     },
 
-                    NodeKind::INLINE_FRAGMENT => function (InlineFragmentNode $node) {
+                    NodeKind::INLINE_FRAGMENT => function(InlineFragmentNode $node) {
                         return $this->join(
                             [
                                 '...',
@@ -172,7 +172,7 @@ 
                         );
                     },
 
-                    NodeKind::FRAGMENT_DEFINITION => function (FragmentDefinitionNode $node) {
+                    NodeKind::FRAGMENT_DEFINITION => function(FragmentDefinitionNode $node) {
                         // Note: fragment variable definitions are experimental and may be changed or removed in the future.
                         return sprintf('fragment %s', $node->name)
                             . $this->wrap('(', $this->join($node->variableDefinitions, ', '), ')')
@@ -181,15 +181,15 @@ 
                             . $node->selectionSet;
                     },
 
-                    NodeKind::INT => static function (IntValueNode $node) {
+                    NodeKind::INT => static function(IntValueNode $node) {
                         return $node->value;
                     },
 
-                    NodeKind::FLOAT => static function (FloatValueNode $node) {
+                    NodeKind::FLOAT => static function(FloatValueNode $node) {
                         return $node->value;
                     },
 
-                    NodeKind::STRING => function (StringValueNode $node, $key) {
+                    NodeKind::STRING => function(StringValueNode $node, $key) {
                         if ($node->block) {
                             return $this->printBlockString($node->value, $key === 'description');
                         }
@@ -197,47 +197,47 @@ 
                         return json_encode($node->value);
                     },
 
-                    NodeKind::BOOLEAN => static function (BooleanValueNode $node) {
+                    NodeKind::BOOLEAN => static function(BooleanValueNode $node) {
                         return $node->value ? 'true' : 'false';
                     },
 
-                    NodeKind::NULL => static function (NullValueNode $node) {
+                    NodeKind::NULL => static function(NullValueNode $node) {
                         return 'null';
                     },
 
-                    NodeKind::ENUM => static function (EnumValueNode $node) {
+                    NodeKind::ENUM => static function(EnumValueNode $node) {
                         return $node->value;
                     },
 
-                    NodeKind::LST => function (ListValueNode $node) {
+                    NodeKind::LST => function(ListValueNode $node) {
                         return '[' . $this->join($node->values, ', ') . ']';
                     },
 
-                    NodeKind::OBJECT => function (ObjectValueNode $node) {
+                    NodeKind::OBJECT => function(ObjectValueNode $node) {
                         return '{' . $this->join($node->fields, ', ') . '}';
                     },
 
-                    NodeKind::OBJECT_FIELD => static function (ObjectFieldNode $node) {
+                    NodeKind::OBJECT_FIELD => static function(ObjectFieldNode $node) {
                         return $node->name . ': ' . $node->value;
                     },
 
-                    NodeKind::DIRECTIVE => function (DirectiveNode $node) {
+                    NodeKind::DIRECTIVE => function(DirectiveNode $node) {
                         return '@' . $node->name . $this->wrap('(', $this->join($node->arguments, ', '), ')');
                     },
 
-                    NodeKind::NAMED_TYPE => static function (NamedTypeNode $node) {
+                    NodeKind::NAMED_TYPE => static function(NamedTypeNode $node) {
                         return $node->name;
                     },
 
-                    NodeKind::LIST_TYPE => static function (ListTypeNode $node) {
+                    NodeKind::LIST_TYPE => static function(ListTypeNode $node) {
                         return '[' . $node->type . ']';
                     },
 
-                    NodeKind::NON_NULL_TYPE => static function (NonNullTypeNode $node) {
+                    NodeKind::NON_NULL_TYPE => static function(NonNullTypeNode $node) {
                         return $node->type . '!';
                     },
 
-                    NodeKind::SCHEMA_DEFINITION => function (SchemaDefinitionNode $def) {
+                    NodeKind::SCHEMA_DEFINITION => function(SchemaDefinitionNode $def) {
                         return $this->join(
                             [
                                 'schema',
@@ -248,15 +248,15 @@ 
                         );
                     },
 
-                    NodeKind::OPERATION_TYPE_DEFINITION => static function (OperationTypeDefinitionNode $def) {
+                    NodeKind::OPERATION_TYPE_DEFINITION => static function(OperationTypeDefinitionNode $def) {
                         return $def->operation . ': ' . $def->type;
                     },
 
-                    NodeKind::SCALAR_TYPE_DEFINITION => $this->addDescription(function (ScalarTypeDefinitionNode $def) {
+                    NodeKind::SCALAR_TYPE_DEFINITION => $this->addDescription(function(ScalarTypeDefinitionNode $def) {
                         return $this->join(['scalar', $def->name, $this->join($def->directives, ' ')], ' ');
                     }),
 
-                    NodeKind::OBJECT_TYPE_DEFINITION => $this->addDescription(function (ObjectTypeDefinitionNode $def) {
+                    NodeKind::OBJECT_TYPE_DEFINITION => $this->addDescription(function(ObjectTypeDefinitionNode $def) {
                         return $this->join(
                             [
                                 'type',
@@ -269,8 +269,8 @@ 
                         );
                     }),
 
-                    NodeKind::FIELD_DEFINITION => $this->addDescription(function (FieldDefinitionNode $def) {
-                        $noIndent = Utils::every($def->arguments, static function (string $arg) {
+                    NodeKind::FIELD_DEFINITION => $this->addDescription(function(FieldDefinitionNode $def) {
+                        $noIndent = Utils::every($def->arguments, static function(string $arg) {
                             return strpos($arg, "\n") === false;
                         });
 
@@ -282,7 +282,7 @@ 
                             . $this->wrap(' ', $this->join($def->directives, ' '));
                     }),
 
-                    NodeKind::INPUT_VALUE_DEFINITION => $this->addDescription(function (InputValueDefinitionNode $def) {
+                    NodeKind::INPUT_VALUE_DEFINITION => $this->addDescription(function(InputValueDefinitionNode $def) {
                         return $this->join(
                             [
                                 $def->name . ': ' . $def->type,
@@ -294,7 +294,7 @@ 
                     }),
 
                     NodeKind::INTERFACE_TYPE_DEFINITION => $this->addDescription(
-                        function (InterfaceTypeDefinitionNode $def) {
+                        function(InterfaceTypeDefinitionNode $def) {
                             return $this->join(
                                 [
                                     'interface',
@@ -307,7 +307,7 @@ 
                         }
                     ),
 
-                    NodeKind::UNION_TYPE_DEFINITION => $this->addDescription(function (UnionTypeDefinitionNode $def) {
+                    NodeKind::UNION_TYPE_DEFINITION => $this->addDescription(function(UnionTypeDefinitionNode $def) {
                         return $this->join(
                             [
                                 'union',
@@ -321,7 +321,7 @@ 
                         );
                     }),
 
-                    NodeKind::ENUM_TYPE_DEFINITION => $this->addDescription(function (EnumTypeDefinitionNode $def) {
+                    NodeKind::ENUM_TYPE_DEFINITION => $this->addDescription(function(EnumTypeDefinitionNode $def) {
                         return $this->join(
                             [
                                 'enum',
@@ -333,11 +333,11 @@ 
                         );
                     }),
 
-                    NodeKind::ENUM_VALUE_DEFINITION => $this->addDescription(function (EnumValueDefinitionNode $def) {
+                    NodeKind::ENUM_VALUE_DEFINITION => $this->addDescription(function(EnumValueDefinitionNode $def) {
                         return $this->join([$def->name, $this->join($def->directives, ' ')], ' ');
                     }),
 
-                    NodeKind::INPUT_OBJECT_TYPE_DEFINITION => $this->addDescription(function (
+                    NodeKind::INPUT_OBJECT_TYPE_DEFINITION => $this->addDescription(function(
                         InputObjectTypeDefinitionNode $def
                     ) {
                         return $this->join(
@@ -351,7 +351,7 @@ 
                         );
                     }),
 
-                    NodeKind::SCHEMA_EXTENSION => function (SchemaTypeExtensionNode $def) {
+                    NodeKind::SCHEMA_EXTENSION => function(SchemaTypeExtensionNode $def) {
                         return $this->join(
                             [
                                 'extend schema',
@@ -362,7 +362,7 @@ 
                         );
                     },
 
-                    NodeKind::SCALAR_TYPE_EXTENSION => function (ScalarTypeExtensionNode $def) {
+                    NodeKind::SCALAR_TYPE_EXTENSION => function(ScalarTypeExtensionNode $def) {
                         return $this->join(
                             [
                                 'extend scalar',
@@ -373,7 +373,7 @@ 
                         );
                     },
 
-                    NodeKind::OBJECT_TYPE_EXTENSION => function (ObjectTypeExtensionNode $def) {
+                    NodeKind::OBJECT_TYPE_EXTENSION => function(ObjectTypeExtensionNode $def) {
                         return $this->join(
                             [
                                 'extend type',
@@ -386,7 +386,7 @@ 
                         );
                     },
 
-                    NodeKind::INTERFACE_TYPE_EXTENSION => function (InterfaceTypeExtensionNode $def) {
+                    NodeKind::INTERFACE_TYPE_EXTENSION => function(InterfaceTypeExtensionNode $def) {
                         return $this->join(
                             [
                                 'extend interface',
@@ -398,7 +398,7 @@ 
                         );
                     },
 
-                    NodeKind::UNION_TYPE_EXTENSION => function (UnionTypeExtensionNode $def) {
+                    NodeKind::UNION_TYPE_EXTENSION => function(UnionTypeExtensionNode $def) {
                         return $this->join(
                             [
                                 'extend union',
@@ -412,7 +412,7 @@ 
                         );
                     },
 
-                    NodeKind::ENUM_TYPE_EXTENSION => function (EnumTypeExtensionNode $def) {
+                    NodeKind::ENUM_TYPE_EXTENSION => function(EnumTypeExtensionNode $def) {
                         return $this->join(
                             [
                                 'extend enum',
@@ -424,7 +424,7 @@ 
                         );
                     },
 
-                    NodeKind::INPUT_OBJECT_TYPE_EXTENSION => function (InputObjectTypeExtensionNode $def) {
+                    NodeKind::INPUT_OBJECT_TYPE_EXTENSION => function(InputObjectTypeExtensionNode $def) {
                         return $this->join(
                             [
                                 'extend input',
@@ -436,8 +436,8 @@ 
                         );
                     },
 
-                    NodeKind::DIRECTIVE_DEFINITION => $this->addDescription(function (DirectiveDefinitionNode $def) {
-                        $noIndent = Utils::every($def->arguments, static function (string $arg) {
+                    NodeKind::DIRECTIVE_DEFINITION => $this->addDescription(function(DirectiveDefinitionNode $def) {
+                        $noIndent = Utils::every($def->arguments, static function(string $arg) {
                             return strpos($arg, "\n") === false;
                         });
 
@@ -455,7 +455,7 @@ 
 
     public function addDescription(callable $cb)
     {
-        return function ($node) use ($cb) {
+        return function($node) use ($cb) {
             return $this->join([$node->description, $cb($node)], "\n");
         };
     }
@@ -502,7 +502,7 @@ 
                 $separator,
                 Utils::filter(
                     $maybeArray,
-                    static function ($x) {
+                    static function($x) {
                         return (bool) $x;
                     }
                 )

src/Language/Lexer.php

Spacing +2 added lines, -2 removed lines

@@ -518,7 +518,7 @@ 
                     case 117:
                         $position = $this->position;
                         [$hex]    = $this->readChars(4, true);
-                        if (! preg_match('/[0-9a-fA-F]{4}/', $hex)) {
+                        if (!preg_match('/[0-9a-fA-F]{4}/', $hex)) {
                             throw new SyntaxError(
                                 $this->source,
                                 $position - 1,
@@ -532,7 +532,7 @@ 
                         $highOrderByte = $code >> 8;
                         if (0xD8 <= $highOrderByte && $highOrderByte <= 0xDF) {
                             [$utf16Continuation] = $this->readChars(6, true);
-                            if (! preg_match('/^\\\u[0-9a-fA-F]{4}$/', $utf16Continuation)) {
+                            if (!preg_match('/^\\\u[0-9a-fA-F]{4}$/', $utf16Continuation)) {
                                 throw new SyntaxError(
                                     $this->source,
                                     $this->position - 5,

src/Language/Visitor.php

Spacing +15 added lines, -15 removed lines

@@ -208,7 +208,7 @@ 
             $isEdited  = $isLeaving && count($edits) !== 0;
 
             if ($isLeaving) {
-                $key    = ! $ancestors ? $UNDEFINED : $path[count($path) - 1];
+                $key    = !$ancestors ? $UNDEFINED : $path[count($path) - 1];
                 $node   = $parent;
                 $parent = array_pop($ancestors);
 
@@ -251,7 +251,7 @@ 
                 $inArray = $stack['inArray'];
                 $stack   = $stack['prev'];
             } else {
-                $key  = $parent !== null
+                $key = $parent !== null
                     ? ($inArray
                         ? $index
                         : $keys[$index]
@@ -272,8 +272,8 @@ 
             }
 
             $result = null;
-            if (! $node instanceof NodeList && ! is_array($node)) {
-                if (! ($node instanceof Node)) {
+            if (!$node instanceof NodeList && !is_array($node)) {
+                if (!($node instanceof Node)) {
                     throw new Exception('Invalid AST Node: ' . json_encode($node));
                 }
 
@@ -288,7 +288,7 @@ 
                             if ($result->doBreak) {
                                 break;
                             }
-                            if (! $isLeaving && $result->doContinue) {
+                            if (!$isLeaving && $result->doContinue) {
                                 array_pop($path);
                                 continue;
                             }
@@ -300,8 +300,8 @@ 
                         }
 
                         $edits[] = [$key, $editValue];
-                        if (! $isLeaving) {
-                            if (! ($editValue instanceof Node)) {
+                        if (!$isLeaving) {
+                            if (!($editValue instanceof Node)) {
                                 array_pop($path);
                                 continue;
                             }
@@ -319,7 +319,7 @@ 
             if ($isLeaving) {
                 array_pop($path);
             } else {
-                $stack   = [
+                $stack = [
                     'inArray' => $inArray,
                     'index'   => $index,
                     'keys'    => $keys,
@@ -401,9 +401,9 @@ 
         $skipping      = new SplFixedArray($visitorsCount);
 
         return [
-            'enter' => static function (Node $node) use ($visitors, $skipping, $visitorsCount) {
+            'enter' => static function(Node $node) use ($visitors, $skipping, $visitorsCount) {
                 for ($i = 0; $i < $visitorsCount; $i++) {
-                    if (! empty($skipping[$i])) {
+                    if (!empty($skipping[$i])) {
                         continue;
                     }
 
@@ -413,7 +413,7 @@ 
                         false
                     );
 
-                    if (! $fn) {
+                    if (!$fn) {
                         continue;
                     }
 
@@ -432,7 +432,7 @@ 
                     }
                 }
             },
-            'leave' => static function (Node $node) use ($visitors, $skipping, $visitorsCount) {
+            'leave' => static function(Node $node) use ($visitors, $skipping, $visitorsCount) {
                 for ($i = 0; $i < $visitorsCount; $i++) {
                     if (empty($skipping[$i])) {
                         $fn = self::getVisitFn(
@@ -468,7 +468,7 @@ 
     public static function visitWithTypeInfo(TypeInfo $typeInfo, $visitor)
     {
         return [
-            'enter' => static function (Node $node) use ($typeInfo, $visitor) {
+            'enter' => static function(Node $node) use ($typeInfo, $visitor) {
                 $typeInfo->enter($node);
                 $fn = self::getVisitFn($visitor, $node->kind, false);
 
@@ -486,7 +486,7 @@ 
 
                 return null;
             },
-            'leave' => static function (Node $node) use ($typeInfo, $visitor) {
+            'leave' => static function(Node $node) use ($typeInfo, $visitor) {
                 $fn     = self::getVisitFn($visitor, $node->kind, true);
                 $result = $fn ? call_user_func_array($fn, func_get_args()) : null;
                 $typeInfo->leave($node);
@@ -511,7 +511,7 @@ 
 
         $kindVisitor = $visitor[$kind] ?? null;
 
-        if (! $isLeaving && is_callable($kindVisitor)) {
+        if (!$isLeaving && is_callable($kindVisitor)) {
             // { Kind() {} }
             return $kindVisitor;
         }

src/Language/Parser.php

Spacing +19 added lines, -19 removed lines

@@ -392,7 +392,7 @@ 
         $this->expect($openKind);
 
         $nodes = [];
-        while (! $this->skip($closeKind)) {
+        while (!$this->skip($closeKind)) {
             $nodes[] = $parseFn($this);
         }
 
@@ -418,7 +418,7 @@ 
         $this->expect($openKind);
 
         $nodes = [$parseFn($this)];
-        while (! $this->skip($closeKind)) {
+        while (!$this->skip($closeKind)) {
             $nodes[] = $parseFn($this);
         }
 
@@ -456,7 +456,7 @@ 
         return new DocumentNode([
             'definitions' => $this->many(
                 Token::SOF,
-                function () {
+                function() {
                     return $this->parseDefinition();
                 },
                 Token::EOF
@@ -592,7 +592,7 @@ 
         return $this->peek(Token::PAREN_L)
             ? $this->many(
                 Token::PAREN_L,
-                function () {
+                function() {
                     return $this->parseVariableDefinition();
                 },
                 Token::PAREN_R
@@ -650,7 +650,7 @@ 
             [
                 'selections' => $this->many(
                     Token::BRACE_L,
-                    function () {
+                    function() {
                         return $this->parseSelection();
                     },
                     Token::BRACE_R
@@ -713,10 +713,10 @@ 
     private function parseArguments($isConst)
     {
         $parseFn = $isConst
-            ? function () {
+            ? function() {
                 return $this->parseConstArgument();
             }
-            : function () {
+            : function() {
                 return $this->parseArgument();
             };
 
@@ -923,7 +923,7 @@ 
                 break;
 
             case Token::DOLLAR:
-                if (! $isConst) {
+                if (!$isConst) {
                     return $this->parseVariable();
                 }
                 break;
@@ -972,9 +972,9 @@ 
     private function parseArray($isConst)
     {
         $start   = $this->lexer->token;
-        $parseFn = $isConst ? function () {
+        $parseFn = $isConst ? function() {
             return $this->parseConstValue();
-        } : function () {
+        } : function() {
             return $this->parseVariableValue();
         };
 
@@ -996,7 +996,7 @@ 
         $start = $this->lexer->token;
         $this->expect(Token::BRACE_L);
         $fields = [];
-        while (! $this->skip(Token::BRACE_R)) {
+        while (!$this->skip(Token::BRACE_R)) {
             $fields[] = $this->parseObjectField($isConst);
         }
 
@@ -1191,7 +1191,7 @@ 
 
         $operationTypes = $this->many(
             Token::BRACE_L,
-            function () {
+            function() {
                 return $this->parseOperationTypeDefinition();
             },
             Token::BRACE_R
@@ -1287,7 +1287,7 @@ 
                 $types[] = $this->parseNamedType();
             } while ($this->skip(Token::AMP) ||
                 // Legacy support for the SDL?
-                (! empty($this->lexer->options['allowLegacySDLImplementsInterfaces']) && $this->peek(Token::NAME))
+                (!empty($this->lexer->options['allowLegacySDLImplementsInterfaces']) && $this->peek(Token::NAME))
             );
         }
 
@@ -1302,7 +1302,7 @@ 
     private function parseFieldsDefinition()
     {
         // Legacy support for the SDL?
-        if (! empty($this->lexer->options['allowLegacySDLEmptyFields']) &&
+        if (!empty($this->lexer->options['allowLegacySDLEmptyFields']) &&
             $this->peek(Token::BRACE_L) &&
             $this->lexer->lookahead()->kind === Token::BRACE_R
         ) {
@@ -1315,7 +1315,7 @@ 
         return $this->peek(Token::BRACE_L)
             ? $this->many(
                 Token::BRACE_L,
-                function () {
+                function() {
                     return $this->parseFieldDefinition();
                 },
                 Token::BRACE_R
@@ -1355,13 +1355,13 @@ 
      */
     private function parseArgumentsDefinition()
     {
-        if (! $this->peek(Token::PAREN_L)) {
+        if (!$this->peek(Token::PAREN_L)) {
             return new NodeList([]);
         }
 
         return $this->many(
             Token::PAREN_L,
-            function () {
+            function() {
                 return $this->parseInputValueDefinition();
             },
             Token::PAREN_R
@@ -1499,7 +1499,7 @@ 
         return $this->peek(Token::BRACE_L)
             ? $this->many(
                 Token::BRACE_L,
-                function () {
+                function() {
                     return $this->parseEnumValueDefinition();
                 },
                 Token::BRACE_R
@@ -1560,7 +1560,7 @@ 
         return $this->peek(Token::BRACE_L)
             ? $this->many(
                 Token::BRACE_L,
-                function () {
+                function() {
                     return $this->parseInputValueDefinition();
                 },
                 Token::BRACE_R

src/Server/Helper.php

Spacing +24 added lines, -24 removed lines

@@ -87,7 +87,7 @@ 
                     throw new RequestError('Could not parse JSON: ' . json_last_error_msg());
                 }
 
-                if (! is_array($bodyParams)) {
+                if (!is_array($bodyParams)) {
                     throw new RequestError(
                         'GraphQL Server expects JSON object or array, but got ' .
                         Utils::printSafeJson($bodyParams)
@@ -153,7 +153,7 @@ 
     public function validateOperationParams(OperationParams $params)
     {
         $errors = [];
-        if (! $params->query && ! $params->queryId) {
+        if (!$params->query && !$params->queryId) {
             $errors[] = new RequestError('GraphQL Request must include at least one of those two parameters: "query" or "queryId"');
         }
 
@@ -161,28 +161,28 @@ 
             $errors[] = new RequestError('GraphQL Request parameters "query" and "queryId" are mutually exclusive');
         }
 
-        if ($params->query !== null && (! is_string($params->query) || empty($params->query))) {
+        if ($params->query !== null && (!is_string($params->query) || empty($params->query))) {
             $errors[] = new RequestError(
                 'GraphQL Request parameter "query" must be string, but got ' .
                 Utils::printSafeJson($params->query)
             );
         }
 
-        if ($params->queryId !== null && (! is_string($params->queryId) || empty($params->queryId))) {
+        if ($params->queryId !== null && (!is_string($params->queryId) || empty($params->queryId))) {
             $errors[] = new RequestError(
                 'GraphQL Request parameter "queryId" must be string, but got ' .
                 Utils::printSafeJson($params->queryId)
             );
         }
 
-        if ($params->operation !== null && (! is_string($params->operation) || empty($params->operation))) {
+        if ($params->operation !== null && (!is_string($params->operation) || empty($params->operation))) {
             $errors[] = new RequestError(
                 'GraphQL Request parameter "operation" must be string, but got ' .
                 Utils::printSafeJson($params->operation)
             );
         }
 
-        if ($params->variables !== null && (! is_array($params->variables) || isset($params->variables[0]))) {
+        if ($params->variables !== null && (!is_array($params->variables) || isset($params->variables[0]))) {
             $errors[] = new RequestError(
                 'GraphQL Request parameter "variables" must be object or JSON string parsed to object, but got ' .
                 Utils::printSafeJson($params->getOriginalInput('variables'))
@@ -253,20 +253,20 @@ 
         $isBatch = false
     ) {
         try {
-            if (! $config->getSchema()) {
+            if (!$config->getSchema()) {
                 throw new InvariantViolation('Schema is required for the server');
             }
 
-            if ($isBatch && ! $config->getQueryBatching()) {
+            if ($isBatch && !$config->getQueryBatching()) {
                 throw new RequestError('Batched queries are not supported by this server');
             }
 
             $errors = $this->validateOperationParams($op);
 
-            if (! empty($errors)) {
+            if (!empty($errors)) {
                 $errors = Utils::map(
                     $errors,
-                    static function (RequestError $err) {
+                    static function(RequestError $err) {
                         return Error::createLocatedError($err, null, null);
                     }
                 );
@@ -280,7 +280,7 @@ 
                 ? $this->loadPersistedQuery($config, $op)
                 : $op->query;
 
-            if (! $doc instanceof DocumentNode) {
+            if (!$doc instanceof DocumentNode) {
                 $doc = Parser::parse($doc);
             }
 
@@ -315,7 +315,7 @@ 
             );
         }
 
-        $applyErrorHandling = static function (ExecutionResult $result) use ($config) {
+        $applyErrorHandling = static function(ExecutionResult $result) use ($config) {
             if ($config->getErrorsHandler()) {
                 $result->setErrorsHandler($config->getErrorsHandler());
             }
@@ -344,13 +344,13 @@ 
         // Load query if we got persisted query id:
         $loader = $config->getPersistentQueryLoader();
 
-        if (! $loader) {
+        if (!$loader) {
             throw new RequestError('Persisted queries are not supported by this server');
         }
 
         $source = $loader($operationParams->queryId, $operationParams);
 
-        if (! is_string($source) && ! $source instanceof DocumentNode) {
+        if (!is_string($source) && !$source instanceof DocumentNode) {
             throw new InvariantViolation(sprintf(
                 'Persistent query loader must return query string or instance of %s but got: %s',
                 DocumentNode::class,
@@ -378,7 +378,7 @@ 
         if (is_callable($validationRules)) {
             $validationRules = $validationRules($params, $doc, $operationType);
 
-            if (! is_array($validationRules)) {
+            if (!is_array($validationRules)) {
                 throw new InvariantViolation(sprintf(
                     'Expecting validation rules to be array or callable returning array, but got: %s',
                     Utils::printSafe($validationRules)
@@ -434,7 +434,7 @@ 
     public function sendResponse($result, $exitWhenDone = false)
     {
         if ($result instanceof Promise) {
-            $result->then(function ($actualResult) use ($exitWhenDone) {
+            $result->then(function($actualResult) use ($exitWhenDone) {
                 $this->doSendResponse($actualResult, $exitWhenDone);
             });
         } else {
@@ -482,8 +482,8 @@ 
         if (is_array($result) && isset($result[0])) {
             Utils::each(
                 $result,
-                static function ($executionResult, $index) {
-                    if (! $executionResult instanceof ExecutionResult) {
+                static function($executionResult, $index) {
+                    if (!$executionResult instanceof ExecutionResult) {
                         throw new InvariantViolation(sprintf(
                             'Expecting every entry of batched query result to be instance of %s but entry at position %d is %s',
                             ExecutionResult::class,
@@ -495,14 +495,14 @@ 
             );
             $httpStatus = 200;
         } else {
-            if (! $result instanceof ExecutionResult) {
+            if (!$result instanceof ExecutionResult) {
                 throw new InvariantViolation(sprintf(
                     'Expecting query result to be instance of %s but got %s',
                     ExecutionResult::class,
                     Utils::printSafe($result)
                 ));
             }
-            if ($result->data === null && ! empty($result->errors)) {
+            if ($result->data === null && !empty($result->errors)) {
                 $httpStatus = 400;
             } else {
                 $httpStatus = 200;
@@ -528,7 +528,7 @@ 
         } else {
             $contentType = $request->getHeader('content-type');
 
-            if (! isset($contentType[0])) {
+            if (!isset($contentType[0])) {
                 throw new RequestError('Missing "Content-Type" header');
             }
 
@@ -543,7 +543,7 @@ 
                     );
                 }
 
-                if (! is_array($bodyParams)) {
+                if (!is_array($bodyParams)) {
                     throw new RequestError(
                         'GraphQL Server expects JSON object or array, but got ' .
                         Utils::printSafeJson($bodyParams)
@@ -552,7 +552,7 @@ 
             } else {
                 $bodyParams = $request->getParsedBody();
 
-                if (! is_array($bodyParams)) {
+                if (!is_array($bodyParams)) {
                     throw new RequestError('Unexpected content type: ' . Utils::printSafeJson($contentType[0]));
                 }
             }
@@ -577,7 +577,7 @@ 
     public function toPsrResponse($result, ResponseInterface $response, StreamInterface $writableBodyStream)
     {
         if ($result instanceof Promise) {
-            return $result->then(function ($actualResult) use ($response, $writableBodyStream) {
+            return $result->then(function($actualResult) use ($response, $writableBodyStream) {
                 return $this->doConvertToPsrResponse($actualResult, $response, $writableBodyStream);
             });
         }