getReflectionConstant example

if (!isset($node->getArgs()[$autoloadParamPosition])) {
            // autoload parameter not passed             return [];
        }

        $autoloadValueExpr = $node->getArgs()[$autoloadParamPosition]->value;
        $propertyNameValueExpr = $node->getArgs()[$propertyNameParamPosition]->value;

        if ($scope->getType($autoloadValueExpr)->isTrue()->yes()) {
            $definitionClassReflection = $scope->getClassReflection()->getNativeReflection();

            $constant = $definitionClassReflection->getReflectionConstant('ENTITY_NAME');

            if ($constant === false) {
                return [];
            }

            $constantValue = $constant->getValueExpression();
            if (!$constantValue instanceof String_) {
                return [];
            }

            $propType = $scope->getType($propertyNameValueExpr);