108 lines
2.6 KiB
C++
108 lines
2.6 KiB
C++
/*
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* This file is a part of morm
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* and is distributed under the 2-Clause BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2018-2023, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "flatconnector.h"
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#include "flatexpression.h"
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#include "morm_types.h"
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#include "model.h"
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namespace morm
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{
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FlatConnector::FlatConnector()
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{
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flat_expression = nullptr;
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expression_allocated = false;
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}
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FlatConnector::~FlatConnector()
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{
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deallocate_expression();
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}
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void FlatConnector::set_expression(FlatExpression & expression)
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{
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flat_expression = &expression;
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}
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FlatExpression * FlatConnector::get_expression()
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{
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allocate_default_expression_if_needed();
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return flat_expression;
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}
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void FlatConnector::to_text(pt::TextStream & stream, Model & model, Export exp)
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{
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allocate_default_expression_if_needed();
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if( flat_expression )
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{
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flat_expression->clear();
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flat_expression->set_work_mode(MORM_WORK_MODE_MODEL_FIELDS_VALUES);
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flat_expression->allow_to_use_prefix(false);
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flat_expression->generate_from_model(stream, model);
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}
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}
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void FlatConnector::deallocate_expression()
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{
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if( expression_allocated )
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{
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delete flat_expression;
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flat_expression = nullptr;
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expression_allocated = false;
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}
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}
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void FlatConnector::allocate_default_expression_if_needed()
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{
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if( !flat_expression )
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{
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allocate_default_expression();
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}
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}
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}
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