protected function _describe(Protobuf\Descriptor $descriptor)
{
$name = $descriptor->getName();
if (isset($this->_resources[$name])) {
return $this->_resources[$name];
}
// Create the message descriptor resource
$res = \protobuf_desc_message($name);
// Add the resource immediately in the dictionary to support cyclic references
$this->_resources[$name] = $res;
$lazy = $this->getOption('lazy');
// Iterate over all the fields to setup the message
foreach ($descriptor->getFields() as $field) {
$type = $field->getType();
// Nested messages need to be populated first
if ($type === Protobuf\Protobuf::TYPE_MESSAGE) {
// When in lazy decoding mode we handle nested messages as binary fields
if ($lazy) {
$type = Protobuf\Protobuf::TYPE_BYTES;
} else {
// Try to obtain the message descriptor resource for this field
$descr = Protobuf\Protobuf::getRegistry()->getDescriptor($field->getReference());
if (!$descr) {
throw new \RuntimeException('Unable to find a descriptor for message "' . $field->getReference() . '"');
}
$nested = $this->_describe($descr);
}
}
//printf("N: %d R: %d T: %d Name: %s P: %d\n", $field->getNumber(), $field->getRule(), $type, $field->getName(), $field->isPacked() ? PROTOBUF_FLAG_PACKED : 0);
// Append the field definition to the message
\protobuf_desc_field($res, $field->getNumber(), $field->getRule(), $type, $field->getName(), $field->isPacked() ? PROTOBUF_FLAG_PACKED : 0, $type === Protobuf\Protobuf::TYPE_MESSAGE ? $nested : NULL);
}
return $res;
}
public function offsetUnset($offset)
{
if (is_numeric($offset)) {
$field = $this->_descriptor->getField($offset);
if (!$field) {
trigger_error("Protobuf message " . $this->_descriptor->getName() . " doesn't have any field with a tag number of {$offset}", E_USER_NOTICE);
return;
}
if ($field->isExtension()) {
$data =& $this->_extensions;
} else {
$data =& $this->_values;
}
if (isset($data[$field->name])) {
unset($data[$field->name]);
}
} else {
$this->clearExtension($offset);
}
}
