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author | Nick Zolnierz <nicholas.zolnierz@mongodb.com> | 2017-06-28 15:11:59 -0400 |
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committer | Nick Zolnierz <nicholas.zolnierz@mongodb.com> | 2017-07-11 18:00:44 -0400 |
commit | 0ebecb306cf68009f01ccde363debfff3b268a9a (patch) | |
tree | 2d4cbb66301718105034aa94cc15ba7a4e8787b5 /src/mongo/db/matcher/schema/expression_internal_schema_object_match.h | |
parent | ca884e8f7b0ef1e762fd4328e59466487031b01a (diff) | |
download | mongo-0ebecb306cf68009f01ccde363debfff3b268a9a.tar.gz |
SERVER-29585: Create a $_internalSchemaObjectMatch MatchExpression
Diffstat (limited to 'src/mongo/db/matcher/schema/expression_internal_schema_object_match.h')
-rw-r--r-- | src/mongo/db/matcher/schema/expression_internal_schema_object_match.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/src/mongo/db/matcher/schema/expression_internal_schema_object_match.h b/src/mongo/db/matcher/schema/expression_internal_schema_object_match.h new file mode 100644 index 00000000000..b0939635cb7 --- /dev/null +++ b/src/mongo/db/matcher/schema/expression_internal_schema_object_match.h @@ -0,0 +1,69 @@ +/** + * 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. + */ + +#pragma once + +#include "mongo/db/matcher/expression_path.h" + +namespace mongo { + +class InternalSchemaObjectMatchExpression final : public PathMatchExpression { +public: + static constexpr StringData kName = "$_internalSchemaObjectMatch"_sd; + + InternalSchemaObjectMatchExpression() : PathMatchExpression(INTERNAL_SCHEMA_OBJECT_MATCH) {} + + Status init(std::unique_ptr<MatchExpression> expr, StringData path) { + _sub = std::move(expr); + return setPath(path); + } + + bool matchesSingleElement(const BSONElement& elem) const final; + + std::unique_ptr<MatchExpression> shallowClone() const final; + + void debugString(StringBuilder& debug, int level = 0) const final; + + void serialize(BSONObjBuilder* out) const final; + + bool equivalent(const MatchExpression* other) const final; + + MatchExpression* getChild(size_t i) const final { + // 'i' must be 0 since there's always exactly one child. + invariant(i == 0); + return _sub.get(); + } + + MatchCategory getCategory() const final { + return MatchCategory::kOther; + } + +private: + std::unique_ptr<MatchExpression> _sub; +}; +} // namespace mongo |