Allow suppress for NullableTypeForNullDefaultValue

README.md

@@ -735,7 +735,7 @@ Sniff provides the following settings:
 
 * `spacesCountBeforeColon`: the number of spaces expected between closing brace and colon.
 
-#### SlevomatCodingStandard.TypeHints.NullableTypeForNullDefaultValue 🔧
+#### SlevomatCodingStandard.TypeHints.NullableTypeForNullDefaultValue 🔧🚧
 
 Checks whether the nullablity `?` symbol is present before each nullable and optional parameter (which are marked as `= null`):
 

SlevomatCodingStandard/Sniffs/TypeHints/NullableTypeForNullDefaultValueSniff.php

@@ -4,6 +4,7 @@
 
 use PHP_CodeSniffer\Files\File;
 use PHP_CodeSniffer\Sniffs\Sniff;
+use SlevomatCodingStandard\Helpers\SuppressHelper;
 use SlevomatCodingStandard\Helpers\TokenHelper;
 use function array_key_exists;
 use function array_merge;
@@ -22,6 +23,8 @@ class NullableTypeForNullDefaultValueSniff implements Sniff
 
 	public const CODE_NULLABILITY_SYMBOL_REQUIRED = 'NullabilitySymbolRequired';
 
+	private const NAME = 'SlevomatCodingStandard.TypeHints.NullableTypeForNullDefaultValue';
+
 	/**
 	 * @return array<int, (int|string)>
 	 */
@@ -37,6 +40,10 @@ public function register(): array
 	 */
 	public function process(File $phpcsFile, $functionPointer): void
 	{
+		if (SuppressHelper::isSniffSuppressed($phpcsFile, $functionPointer, self::NAME)) {
+			return;
+		}
+
 		$tokens = $phpcsFile->getTokens();
 
 		$parenthesisOpener = array_key_exists('parenthesis_opener', $tokens[$functionPointer])

tests/Sniffs/TypeHints/data/nullableTypeForNullDefaultValueNoErrors.php

@@ -24,6 +24,14 @@ public function doFoo(?int $int = null)
 class FooBar extends \stdClass
 {
 
+	/**
+	 * @phpcsSuppress SlevomatCodingStandard.TypeHints.NullableTypeForNullDefaultValue
+	 */
+	private function isSniffSuppressed(string $a = null)
+	{
+
+	}
+
 	public function valid(?bool $bool = null, $noTypehint = null, ?int $int, string $a = 'default', ?string $b = 'null')
 	{