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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/matcher/schema/expression_internal_schema_match_array_index.h"
namespace mongo {
constexpr StringData InternalSchemaMatchArrayIndexMatchExpression::kName;
void InternalSchemaMatchArrayIndexMatchExpression::debugString(StringBuilder& debug,
int level) const {
_debugAddSpace(debug, level);
BSONObjBuilder builder;
serialize(&builder);
debug << builder.obj().toString() << "\n";
const auto* tag = getTag();
if (tag) {
debug << " ";
tag->debugString(&debug);
}
debug << "\n";
}
bool InternalSchemaMatchArrayIndexMatchExpression::equivalent(const MatchExpression* expr) const {
if (matchType() != expr->matchType()) {
return false;
}
const auto* other = static_cast<const InternalSchemaMatchArrayIndexMatchExpression*>(expr);
return path() == other->path() && _index == other->_index &&
_expression->equivalent(other->_expression.get());
}
Status InternalSchemaMatchArrayIndexMatchExpression::init(
StringData path, long long index, std::unique_ptr<ExpressionWithPlaceholder> expression) {
invariant(static_cast<bool>(expression));
_index = index;
_expression = std::move(expression);
return setPath(path);
}
void InternalSchemaMatchArrayIndexMatchExpression::serialize(BSONObjBuilder* builder) const {
BSONObjBuilder pathSubobj(builder->subobjStart(path()));
{
BSONObjBuilder matchArrayElemSubobj(pathSubobj.subobjStart(kName));
matchArrayElemSubobj.append("index", _index);
matchArrayElemSubobj.append("namePlaceholder", _expression->getPlaceholder().value_or(""));
{
BSONObjBuilder subexprSubObj(matchArrayElemSubobj.subobjStart("expression"));
_expression->getFilter()->serialize(&subexprSubObj);
subexprSubObj.doneFast();
}
matchArrayElemSubobj.doneFast();
}
pathSubobj.doneFast();
}
std::unique_ptr<MatchExpression> InternalSchemaMatchArrayIndexMatchExpression::shallowClone()
const {
auto clone = stdx::make_unique<InternalSchemaMatchArrayIndexMatchExpression>();
invariantOK(clone->init(path(), _index, _expression->shallowClone()));
return std::move(clone);
}
MatchExpression::ExpressionOptimizerFunc
InternalSchemaMatchArrayIndexMatchExpression::getOptimizer() const {
return [](std::unique_ptr<MatchExpression> expression) {
static_cast<InternalSchemaMatchArrayIndexMatchExpression&>(*expression)
._expression->optimizeFilter();
return expression;
};
}
} // namespace mongo
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