PHP 8.1: PSR1/SideEffects - Added support for enums

Author: kukulich

src/Standards/PSR1/Sniffs/Files/SideEffectsSniff.php

@@ -82,6 +82,7 @@ private function searchForConflict($phpcsFile, $start, $end, $tokens)
             T_CLASS     => T_CLASS,
             T_INTERFACE => T_INTERFACE,
             T_TRAIT     => T_TRAIT,
+            T_ENUM      => T_ENUM,
             T_FUNCTION  => T_FUNCTION,
         ];
 

src/Standards/PSR1/Tests/Files/SideEffectsUnitTest.1.inc

@@ -6,6 +6,7 @@ const CONSTANT2 = 2;
 
 use Something;
 use SomethingElse;
+use function interface_exists;
 
 declare(ticks=1);
 
@@ -63,6 +64,11 @@ if (!interface_exists('MyInterface')) {
     interface MyInterface {}
 }
 
+if (!interface_exists('MyEnum')) {
+    // Define an enum.
+    enum MyEnum {}
+}
+
 #[\Attribute]
 namespace {
     class A {}