Helpers::isNamespaceIdentifier() added $allowLeadingSlash

Author: dg

src/PhpGenerator/Helpers.php

@@ -229,9 +229,10 @@ public static function isIdentifier($value): bool
 	}
 
 
-	public static function isNamespaceIdentifier($value): bool
+	public static function isNamespaceIdentifier($value, bool $allowLeadingSlash = FALSE): bool
 	{
-		return is_string($value) && preg_match('#^' . Helpers::PHP_IDENT . '(\\\\' . Helpers::PHP_IDENT . ')*\z#', $value);
+		$re = '#^' . ($allowLeadingSlash ? '\\\\?' : '') . Helpers::PHP_IDENT . '(\\\\' . Helpers::PHP_IDENT . ')*\z#';
+		return is_string($value) && preg_match($re, $value);
 	}
 
 

tests/PhpGenerator/Helpers.isNamespaceIdentifier.phpt

@@ -17,3 +17,6 @@ Assert::true(Helpers::isNamespaceIdentifier('Item\Item'));
 Assert::false(Helpers::isNamespaceIdentifier('Item\\\\Item'));
 Assert::false(Helpers::isNamespaceIdentifier('\\Item'));
 Assert::false(Helpers::isNamespaceIdentifier('Item\\'));
+
+Assert::true(Helpers::isNamespaceIdentifier('\\Item', TRUE));
+Assert::false(Helpers::isNamespaceIdentifier('Item\\', TRUE));