Gets the value that must be set to the field, applicable only for WRITE access type
| public getValueToSet ( ) : mixed | ||
| return | mixed | |
/**
* @param FieldAccess $access
*
* @return void
*
* @throws \ErrorException|\Exception
*/
public function __invoke(FieldAccess $access)
{
if (FieldAccess::WRITE !== $access->getAccessType()) {
return;
}
$that = $access->getThis();
$contextClass = $that ? get_class($that) : $access->getField()->getDeclaringClass()->getName();
$baseCheckers = [new IntegerTypeChecker(), new CallableTypeChecker(), new StringTypeChecker(), new GenericObjectTypeChecker(), new ObjectTypeChecker(), new ResourceTypeChecker(), new MixedTypeChecker(), new NullTypeChecker()];
(new ApplyTypeChecks(new TypedTraversableChecker(...$baseCheckers), ...$baseCheckers))->__invoke((new PropertyTypeFinder())->__invoke($access->getField(), $contextClass), $access->getValueToSet());
}
/**
* Advice that controls an access to the properties
*
* @param FieldAccess $fieldAccess Joinpoint
*
* @Around("access(public|protected Demo\Example\PropertyDemo->*)")
* @return mixed
*/
public function aroundFieldAccess(FieldAccess $fieldAccess)
{
$isRead = $fieldAccess->getAccessType() == FieldAccess::READ;
// proceed all internal advices
$fieldAccess->proceed();
if ($isRead) {
// if you want to change original property value, then return it by reference
$value = $fieldAccess->getValue();
} else {
// if you want to change value to set, then return it by reference
$value = $fieldAccess->getValueToSet();
}
echo "Calling After Interceptor for ", $fieldAccess, ", value: ", json_encode($value), PHP_EOL;
}
/**
* @param FieldAccess $access
*
* @return void
*
* @throws \RuntimeException
*/
public function __invoke(FieldAccess $access)
{
if (!($that = $access->getThis())) {
return;
}
if (FieldAccess::WRITE !== $access->getAccessType()) {
return;
}
$field = $access->getField();
$field->setAccessible(true);
// simplistic check - won't check for multiple assignments of "null" to a "null" valued field
if (null === ($currentValue = $field->getValue($that))) {
return;
}
if (!(new DocBlock($field))->getTagsByName('immutable')) {
return;
}
$newValue = $access->getValueToSet();
throw new \RuntimeException(sprintf('Trying to overwrite property %s#$%s of object %s#%s with a value of type "%s".' . ' The property was already given a value of type %s', $field->getDeclaringClass()->getName(), $field->getName(), get_class($that), spl_object_hash($that), is_object($newValue) ? get_class($newValue) : gettype($newValue), is_object($currentValue) ? get_class($currentValue) : gettype($currentValue)));
}
