diff options
Diffstat (limited to 'src/mongo/db/query/query_shape/cmd_with_let_shape.h')
| -rw-r--r-- | src/mongo/db/query/query_shape/cmd_with_let_shape.h | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/src/mongo/db/query/query_shape/cmd_with_let_shape.h b/src/mongo/db/query/query_shape/cmd_with_let_shape.h deleted file mode 100644 index a1c127b9999..00000000000 --- a/src/mongo/db/query/query_shape/cmd_with_let_shape.h +++ /dev/null @@ -1,109 +0,0 @@ -/** - * Copyright (C) 2023-present MongoDB, Inc. - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the Server Side Public License, version 1, - * as published by MongoDB, Inc. - * - * 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 - * Server Side Public License for more details. - * - * You should have received a copy of the Server Side Public License - * along with this program. If not, see - * <http://www.mongodb.com/licensing/server-side-public-license>. - * - * 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 Server Side 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/bson/bsonobj.h" -#include "mongo/db/pipeline/expression_context.h" -#include "mongo/db/query/parsed_find_command.h" -#include "mongo/db/query/query_shape/query_shape.h" -#include "mongo/db/query/query_shape/serialization_options.h" - -namespace mongo::query_shape { - -/** - * This struct is bit of a weird one. We want to use it as the shape's _entire_ "specific - * components" (rather than introduce more virtual functions to that interface). So, we track here - * the let component (as the name suggests) but we also keep an unowned reference to the specific - * components of CmdWithLetShape sub-classes. This class doesn't really do all that much with those - * components except track a reference to them and ensure their size is accounted for and their hash - * value is incorporated. - */ -struct LetShapeComponent : public CmdSpecificShapeComponents { - LetShapeComponent(boost::optional<BSONObj> let, - const boost::intrusive_ptr<ExpressionContext>& expCtx, - const CmdSpecificShapeComponents& unownedInnerComponents); - - /** - * Hashes to include the shapified let parameters and also the hash of 'unownedInnerComponents'. - */ - void HashValue(absl::HashState state) const final; - - /** - * Includes the size of the let parameters and the size of 'unownedInnerComponents.' - */ - size_t size() const final; - - /** - * Adds _only_ the let params. - */ - void addLetBson(BSONObjBuilder&, - const SerializationOptions&, - const boost::intrusive_ptr<ExpressionContext>&) const; - - BSONObj shapifiedLet; - bool hasLet; - // Tracked so that this can be hash combined correctly. - const CmdSpecificShapeComponents& unownedInnerComponents; -}; - -/** - * The 'let' command argument is semi-generic in that it is supported in a couple commands. However - * it is treated specially since it supports using expressions as the let constants. Using - * expressions induces a library dependency that we don't want in the Shape interface itself. So - * this class handles tracking and adding the 'let' component of the shape for sub-classes. - */ -class CmdWithLetShape : public Shape { -public: - CmdWithLetShape(boost::optional<BSONObj> let, - const boost::intrusive_ptr<ExpressionContext>& expCtx, - const CmdSpecificShapeComponents& unownedInnerComponents, - NamespaceStringOrUUID, - BSONObj collation_); - - const CmdSpecificShapeComponents& specificComponents() const final { - return _let; - } - -protected: - void appendCmdSpecificShapeComponents(BSONObjBuilder&, - OperationContext* opCtx, - const SerializationOptions& opts) const final; - virtual void appendLetCmdSpecificShapeComponents( - BSONObjBuilder&, - const boost::intrusive_ptr<ExpressionContext>& expCtx, - const SerializationOptions&) const = 0; - - LetShapeComponent _let; -}; -static_assert(sizeof(CmdWithLetShape) == sizeof(Shape) + sizeof(LetShapeComponent), - "If the class' members have changed, this assert and the extraSize() calculation may " - "need to be updated with a new value."); - -} // namespace mongo::query_shape |