Automattic\WooCommerce\Vendor\GraphQL\Validator

DocumentValidator::addRule │ public static │ WC 1.0

Add rule to list of global validation rules.

Method of the class: DocumentValidator{}

No Hooks.

Returns

null. Nothing (null).

Usage

$result = DocumentValidator::addRule( $rule ): void;
$rule(ValidationRule) (required)
.

DocumentValidator::addRule() code WC 10.9.1

woocommerce/lib/packages/GraphQL/Validator/DocumentValidator.php 
public static function addRule(ValidationRule $rule): void
{
    self::$rules[$rule->getName()] = $rule;
}