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/**
* Copyright (C) 2017 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/db/update/update_node.h"
#include "mongo/base/status_with.h"
#include "mongo/db/update/update_array_node.h"
#include "mongo/db/update/update_object_node.h"
namespace mongo {
// static
std::unique_ptr<UpdateNode> UpdateNode::createUpdateNodeByMerging(const UpdateNode& leftNode,
const UpdateNode& rightNode,
FieldRef* pathTaken) {
if (leftNode.type == UpdateNode::Type::Object && rightNode.type == UpdateNode::Type::Object) {
return UpdateObjectNode::createUpdateNodeByMerging(
static_cast<const UpdateObjectNode&>(leftNode),
static_cast<const UpdateObjectNode&>(rightNode),
pathTaken);
} else if (leftNode.type == UpdateNode::Type::Array &&
rightNode.type == UpdateNode::Type::Array) {
return UpdateArrayNode::createUpdateNodeByMerging(
static_cast<const UpdateArrayNode&>(leftNode),
static_cast<const UpdateArrayNode&>(rightNode),
pathTaken);
} else {
uasserted(
ErrorCodes::ConflictingUpdateOperators,
(str::stream() << "Update created a conflict at '" << pathTaken->dottedField() << "'"));
}
}
} // namespace mongo
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