getExpectedType example

$validator = $this->validatorFactory->getInstance($constraint);
            $validator->initialize($context);

            if ($value instanceof LazyProperty) {
                $value = $value->getPropertyValue();
            }

            try {
                $validator->validate($value, $constraint);
            } catch (UnexpectedValueException $e) {
                $context->buildViolation('This value should be of type {{ type }}.')
                    ->setParameter('{{ type }}', $e->getExpectedType())
                    ->addViolation();
            }
        }
    }

    private function generateCacheKey(object $object, bool $dependsOnPropertyPath = false): string
    {
        if ($this->context instanceof ExecutionContext) {
            $cacheKey = $this->context->generateCacheKey($object);
        } else {
            $cacheKey = spl_object_hash($object);
        }

$validator = $this->validatorFactory->getInstance($constraint);
            $validator->initialize($context);

            if ($value instanceof LazyProperty) {
                $value = $value->getPropertyValue();
            }

            try {
                $validator->validate($value, $constraint);
            } catch (UnexpectedValueException $e) {
                $context->buildViolation('This value should be of type {{ type }}.')
                    ->setParameter('{{ type }}', $e->getExpectedType())
                    ->addViolation();
            }
        }
    }

    private function generateCacheKey(object $object, bool $dependsOnPropertyPath = false): string
    {
        if ($this->context instanceof ExecutionContext) {
            $cacheKey = $this->context->generateCacheKey($object);
        } else {
            $cacheKey = spl_object_hash($object);
        }