New with parentheses

README.md

@@ -31,6 +31,7 @@ exceptions/differences/extensions (:white_check_mark: are the implemented sniffs
 - :white_check_mark: Omit phpDoc for parameters/returns with native types, unless adding description
 - :white_check_mark: Don't use `@author`, `@since` and similar annotations that duplicate Git information
 - :white_check_mark: Assignment in condition is not allowed
+- :white_check_mark: Use parentheses when creating new instances that do not require arguments `$foo = new Foo()`
 
 For full reference of enforcements, go through `lib/Doctrine/ruleset.xml` where each sniff is briefly described.
 

lib/Doctrine/ruleset.xml

@@ -95,6 +95,8 @@
     <rule ref="SlevomatCodingStandard.ControlStructures.DisallowEqualOperators"/>
     <!-- Require language constructs without parentheses -->
     <rule ref="SlevomatCodingStandard.ControlStructures.LanguageConstructWithParentheses"/>
+    <!-- Require new instances with parentheses -->
+    <rule ref="SlevomatCodingStandard.ControlStructures.NewWithParentheses"/>
     <!-- Forbid useless unreachable catch blocks -->
     <rule ref="SlevomatCodingStandard.Exceptions.DeadCatch"/>
     <!-- Require using Throwable instead of Exception -->

tests/expected_report.txt

@@ -5,14 +5,15 @@ FILE                                                  ERRORS  WARNINGS
 ----------------------------------------------------------------------
 tests/input/concatenation_spacing.php                 24      0
 tests/input/example-class.php                         19      0
+tests/input/new_with_parentheses.php                  17      0
 tests/input/not_spacing.php                           7       0
 tests/input/return_type_on_closures.php               21      0
 tests/input/return_type_on_methods.php                17      0
 tests/input/test-case.php                             6       0
 ----------------------------------------------------------------------
-A TOTAL OF 94 ERRORS AND 0 WARNINGS WERE FOUND IN 6 FILES
+A TOTAL OF 111 ERRORS AND 0 WARNINGS WERE FOUND IN 7 FILES
 ----------------------------------------------------------------------
-PHPCBF CAN FIX 83 OF THESE SNIFF VIOLATIONS AUTOMATICALLY
+PHPCBF CAN FIX 100 OF THESE SNIFF VIOLATIONS AUTOMATICALLY
 ----------------------------------------------------------------------
 
 

tests/fixed/new_with_parentheses.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+$foo = new DateTimeImmutable();
+
+$barClassName = 'Bar';
+$bar          = new $barClassName();
+
+$classNamesInArray = ['Baz'];
+$foo               = new $classNamesInArray[0]();
+
+$classNamesInObject      = new stdClass();
+$classNamesInObject->foo = 'Foo';
+$foo                     = new $classNamesInObject->foo();
+
+$whitespaceBetweenClassNameAndParentheses = new stdClass()   ;
+
+$x = [
+    new stdClass(),
+];
+
+$y = [new stdClass()];
+
+$z = new stdClass() ? new stdClass() : new stdClass();
+
+$q = $q ?: new stdClass();
+$e = $e ?? new stdClass();

tests/input/new_with_parentheses.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+$foo = new \DateTimeImmutable;
+
+$barClassName = 'Bar';
+$bar = new $barClassName;
+
+$classNamesInArray = ['Baz'];
+$foo = new $classNamesInArray[0];
+
+$classNamesInObject = new stdClass();
+$classNamesInObject->foo = 'Foo';
+$foo = new $classNamesInObject->foo;
+
+$whitespaceBetweenClassNameAndParentheses = new stdClass   ;
+
+$x = [
+    new stdClass,
+];
+
+$y = [new stdClass];
+
+$z = new stdClass ? new stdClass : new stdClass;
+
+$q = $q ?: new stdClass;
+$e = $e ?? new stdClass;