PHPCS 4.0 compat

Proton/Sniffs/Spacing/ArrowFunctionSpacingSniff.php

@@ -24,9 +24,9 @@ public function process(File $phpcsFile, $stackPtr): void
     {
         $tokens = $phpcsFile->getTokens();
 
-        if ($tokens[$stackPtr]['code'] === T_FN && $tokens[$stackPtr + 1]['code'] !== T_WHITESPACE) {
+        if ($tokens[$stackPtr]['code'] === T_FN && $tokens[$stackPtr + 1]['code'] !== T_OPEN_PARENTHESIS) {
             $phpcsFile->addError(
-                'The fn arrow function token should always be followed by a space.',
+                'The fn keyword MUST NOT be succeeded by a space.',
                 $stackPtr,
                 'Found',
             );

Proton/ruleset.xml

@@ -1,5 +1,9 @@
 <?xml version="1.0"?>
-<ruleset name="Proton">
+<ruleset
+        name="Proton"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:noNamespaceSchemaLocation="../../vendor/squizlabs/php_codesniffer/phpcs.xsd"
+>
     <description>
         Proton PHP Coding Standard
     </description>
@@ -123,7 +127,6 @@
 
     <!-- # Slevomat Coding Standard -->
     <!-- https://github.com/slevomat/coding-standard -->
-    <config name="installed_paths" value="../../slevomat/coding-standard"/>
 
     <rule ref="SlevomatCodingStandard.PHP.TypeCast"/>
     <rule ref="SlevomatCodingStandard.PHP.ShortList"/>
@@ -133,6 +136,7 @@
             <property name="ignoreComplexTernaryConditions" value="1"/>
         </properties>
     </rule>
+    <rule ref="SlevomatCodingStandard.PHP.UselessParentheses"/>
     <!-- Require usage of constructor property promotion -->
     <rule ref="SlevomatCodingStandard.Classes.RequireConstructorPropertyPromotion"/>
     <!-- Forbid uses of multiple traits separated by comma -->

composer.json

@@ -13,12 +13,12 @@
     "scripts": {
         "test-fix": "phpcs --standard=phpcs.xml --report=diff tests > tests/out.diff && diff tests/out.diff tests/expected.diff",
         "test-print": "phpcs --standard=phpcs.xml --report=summary tests",
-        "test": "phpcs --standard=phpcs.xml --report=csv tests | sort -r | cut -f 2,3,4,6 -d ',' > tests/out.csv && diff tests/expected_csv.txt tests/out.csv"
+        "test": "phpcs --standard=phpcs.xml --report=csv tests/ | cut -f 1,2,3,4,6 -d ',' | sort -r > tests/out.csv && diff -u tests/expected_csv.txt tests/out.csv"
     },
     "require": {
         "php": "^8.0",
-        "slevomat/coding-standard": "^8.0",
-        "squizlabs/php_codesniffer": "^3.7"
+        "slevomat/coding-standard": "^8.24",
+        "squizlabs/php_codesniffer": "^4.0"
     },
     "license": "MIT",
     "config": {

phpcs.xml

@@ -4,7 +4,7 @@
         Proton PHP Coding Standard
     </description>
 
-    <config name="installed_paths" value="Proton"/>
+    <arg name="basepath" value="." />
 
     <rule ref="Proton"/>
 

tests/correct/ClassOk.php

@@ -37,7 +37,7 @@ public function __construct(array $config)
 
         phpinfo2();
 
-        call_user_func(fn () => {});
+        call_user_func(fn() => {});
     }
 
     public function ping(Request $request): mixed

tests/wrong/Class1.php

@@ -28,7 +28,7 @@ public function __construct()
         $this->test = new class() {
         };
 
-        call_user_func(fn() => {});
+        call_user_func(fn () => {});
     }
 
     private function unused() {