Add sniff for arrow functions.

Author: ADmad

.github/workflows/ci.yml

@@ -15,14 +15,14 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-version: ['8.1', '8.2']
+        php-version: ['8.1', '8.2', '8.3']
         dependencies: ['highest']
         include:
           - php-version: '8.1'
             dependencies: 'lowest'
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Setup PHP
       uses: shivammathur/setup-php@v2
@@ -31,7 +31,7 @@ jobs:
         coverage: none
 
     - name: Composer install
-      uses: ramsey/composer-install@v2
+      uses: ramsey/composer-install@v3
       with:
         dependency-versions: ${{ matrix.dependencies }}
         composer-options: --ignore-platform-reqs
@@ -54,7 +54,7 @@ jobs:
         coverage: none
 
     - name: Composer install
-      uses: ramsey/composer-install@v2
+      uses: ramsey/composer-install@v3
       with:
         composer-options: --ignore-platform-reqs
 

CakePHP/ruleset.xml

@@ -216,6 +216,7 @@
             <property name="ignoreUnusedValuesWhenOnlyKeysAreUsedInForeach" value="true" />
         </properties>
     </rule>
+    <rule ref="SlevomatCodingStandard.Functions.ArrowFunctionDeclaration" />
 
     <!-- phpcs Zend sniffs -->
     <rule ref="Zend.NamingConventions.ValidVariableName">

docs/README.md

@@ -1,6 +1,6 @@
 # CakePHP ruleset
 
-The CakePHP standard contains 143 sniffs
+The CakePHP standard contains 144 sniffs
 
 CakePHP (20 sniffs)
 -------------------
@@ -95,7 +95,7 @@ PSR2 (9 sniffs)
 - PSR2.Methods.FunctionClosingBrace
 - PSR2.Methods.MethodDeclaration
 
-SlevomatCodingStandard (39 sniffs)
+SlevomatCodingStandard (40 sniffs)
 ----------------------------------
 - SlevomatCodingStandard.Arrays.TrailingArrayComma
 - SlevomatCodingStandard.Classes.ClassConstantVisibility
@@ -113,6 +113,7 @@ SlevomatCodingStandard (39 sniffs)
 - SlevomatCodingStandard.ControlStructures.NewWithParentheses
 - SlevomatCodingStandard.ControlStructures.RequireNullCoalesceOperator
 - SlevomatCodingStandard.Exceptions.DeadCatch
+- SlevomatCodingStandard.Functions.ArrowFunctionDeclaration
 - SlevomatCodingStandard.Namespaces.AlphabeticallySortedUses
 - SlevomatCodingStandard.Namespaces.FullyQualifiedClassNameInAnnotation
 - SlevomatCodingStandard.Namespaces.NamespaceDeclaration