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Diffstat (limited to 'connectivity/source/drivers/file/fcode.cxx')
| -rw-r--r-- | connectivity/source/drivers/file/fcode.cxx | 373 |
1 files changed, 373 insertions, 0 deletions
diff --git a/connectivity/source/drivers/file/fcode.cxx b/connectivity/source/drivers/file/fcode.cxx new file mode 100644 index 000000000..d41d3e607 --- /dev/null +++ b/connectivity/source/drivers/file/fcode.cxx @@ -0,0 +1,373 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <file/fcode.hxx> +#include <osl/diagnose.h> +#include <sal/log.hxx> +#include <connectivity/sqlnode.hxx> +#include <sqlbison.hxx> +#include <com/sun/star/sdb/SQLFilterOperator.hpp> + +using namespace ::comphelper; +using namespace connectivity; +using namespace connectivity::file; +using namespace ::com::sun::star::sdbc; +using namespace ::com::sun::star::sdb; + +OCode::~OCode() = default; + +OOperandRow::OOperandRow(sal_uInt16 _nPos, sal_Int32 _rType) + : OOperand(_rType) + , m_nRowPos(_nPos) +{} + +void OOperandRow::bindValue(const OValueRefRow& _pRow) +{ + OSL_ENSURE(_pRow.is(),"NO EMPTY row allowed!"); + m_pRow = _pRow; + OSL_ENSURE(m_pRow.is() && m_nRowPos < m_pRow->size(),"Invalid RowPos is >= vector.size()"); + (*m_pRow)[m_nRowPos]->setBound(true); +} + +void OOperandRow::setValue(const ORowSetValue& _rVal) +{ + OSL_ENSURE(m_pRow.is() && m_nRowPos < m_pRow->size(),"Invalid RowPos is >= vector.size()"); + (*(*m_pRow)[m_nRowPos]) = _rVal; +} + +const ORowSetValue& OOperandRow::getValue() const +{ + OSL_ENSURE(m_pRow.is() && m_nRowPos < m_pRow->size(),"Invalid RowPos is >= vector.size()"); + return (*m_pRow)[m_nRowPos]->getValue(); +} + + +void OOperandValue::setValue(const ORowSetValue& _rVal) +{ + m_aValue = _rVal; +} + +OOperandParam::OOperandParam(sal_Int32 _nPos) + : OOperandRow(static_cast<sal_uInt16>(_nPos), DataType::VARCHAR) // Standard-Type +{ + //TODO: Actually do something here (the current state of OOperandParam appears to be "the + // remains of the very beginnings of a never finished implementation of support for parameters + // in this code", as Lionel put it in the comments at <https://gerrit.libreoffice.org/c/core/+/ + // 116839/1#message-7b2bbf3543f559a0b67dc35cd940e2ab8829c274> "-Werror,-Wunused-but-set-variable + // (Clang 13 trunk)"). +} + + +const ORowSetValue& OOperandValue::getValue() const +{ + return m_aValue; +} + + +OOperandConst::OOperandConst(const OSQLParseNode& rColumnRef, const OUString& aStrValue) +{ + switch (rColumnRef.getNodeType()) + { + case SQLNodeType::String: + m_aValue = aStrValue; + m_eDBType = DataType::VARCHAR; + m_aValue.setBound(true); + return; + case SQLNodeType::IntNum: + case SQLNodeType::ApproxNum: + m_aValue = aStrValue.toDouble(); + m_eDBType = DataType::DOUBLE; + m_aValue.setBound(true); + return; + default: + break; + } + + if (SQL_ISTOKEN(&rColumnRef, TRUE)) + { + m_aValue = 1.0; + m_eDBType = DataType::BIT; + } + else if (SQL_ISTOKEN(&rColumnRef, FALSE)) + { + m_aValue = 0.0; + m_eDBType = DataType::BIT; + } + else + { + SAL_WARN( "connectivity.drivers", "Parse Error"); + } + m_aValue.setBound(true); +} + + +// Implementation of the operators + + +bool OBoolOperator::operate(const OOperand*, const OOperand*) const +{ + return false; +} + + +void OBoolOperator::Exec(OCodeStack& rCodeStack) +{ + OOperand *pRight = rCodeStack.top(); + rCodeStack.pop(); + OOperand *pLeft = rCodeStack.top(); + rCodeStack.pop(); + + rCodeStack.push(new OOperandResultBOOL(operate(pLeft, pRight))); + if( typeid(OOperandResult) == typeid(*pLeft)) + delete pLeft; + if( typeid(OOperandResult) == typeid(*pRight)) + delete pRight; +} + +bool OOp_NOT::operate(const OOperand* pLeft, const OOperand* ) const +{ + return !pLeft->isValid(); +} + +void OOp_NOT::Exec(OCodeStack& rCodeStack) +{ + OOperand* pOperand = rCodeStack.top(); + rCodeStack.pop(); + + rCodeStack.push(new OOperandResultBOOL(operate(pOperand, nullptr))); + + if( typeid(OOperandResult) == typeid(*pOperand)) + delete pOperand; +} + +bool OOp_AND::operate(const OOperand* pLeft, const OOperand* pRight) const +{ + return pLeft->isValid() && pRight->isValid(); +} + + +bool OOp_OR::operate(const OOperand* pLeft, const OOperand* pRight) const +{ + return pLeft->isValid() || pRight->isValid(); +} + + +void OOp_ISNULL::Exec(OCodeStack& rCodeStack) +{ + OOperand* pOperand = rCodeStack.top(); + rCodeStack.pop(); + + rCodeStack.push(new OOperandResultBOOL(operate(pOperand, nullptr))); + if( typeid(OOperandResult) == typeid(*pOperand)) + delete pOperand; +} + + +bool OOp_ISNULL::operate(const OOperand* pOperand, const OOperand*) const +{ + return pOperand->getValue().isNull(); +} + + +bool OOp_ISNOTNULL::operate(const OOperand* pOperand, const OOperand*) const +{ + return !OOp_ISNULL::operate(pOperand, nullptr); +} + + +bool OOp_LIKE::operate(const OOperand* pLeft, const OOperand* pRight) const +{ + bool bMatch; + const ORowSetValue& aLH(pLeft->getValue()); + const ORowSetValue& aRH(pRight->getValue()); + + if (aLH.isNull() || aRH.isNull()) + bMatch = false; + else + { + bMatch = match(aRH.getString(), aLH.getString(), cEscape); + } + return bMatch; +} + + +bool OOp_NOTLIKE::operate(const OOperand* pLeft, const OOperand* pRight) const +{ + return !OOp_LIKE::operate(pLeft, pRight); +} + + +bool OOp_COMPARE::operate(const OOperand* pLeft, const OOperand* pRight) const +{ + const ORowSetValue& aLH(pLeft->getValue()); + const ORowSetValue& aRH(pRight->getValue()); + + if (aLH.isNull() || aRH.isNull()) // if (!aLH.getValue() || !aRH.getValue()) + return false; + + bool bResult = false; + sal_Int32 eDBType = pLeft->getDBType(); + + // Comparison (depending on Data-type): + switch (eDBType) + { + case DataType::CHAR: + case DataType::VARCHAR: + case DataType::LONGVARCHAR: + { + OUString sLH = aLH.getString(), sRH = aRH.getString(); + sal_Int32 nRes = sLH.compareToIgnoreAsciiCase(sRH); + switch(aPredicateType) + { + case SQLFilterOperator::EQUAL: bResult = (nRes == 0); break; + case SQLFilterOperator::NOT_EQUAL: bResult = (nRes != 0); break; + case SQLFilterOperator::LESS: bResult = (nRes < 0); break; + case SQLFilterOperator::LESS_EQUAL: bResult = (nRes <= 0); break; + case SQLFilterOperator::GREATER: bResult = (nRes > 0); break; + case SQLFilterOperator::GREATER_EQUAL: bResult = (nRes >= 0); break; + default: bResult = false; + } + } break; + case DataType::TINYINT: + case DataType::SMALLINT: + case DataType::INTEGER: + case DataType::DECIMAL: + case DataType::NUMERIC: + case DataType::REAL: + case DataType::DOUBLE: + case DataType::BIT: + case DataType::TIMESTAMP: + case DataType::DATE: + case DataType::TIME: + { + double n = aLH.getDouble(), m = aRH.getDouble(); + + switch (aPredicateType) + { + case SQLFilterOperator::EQUAL: bResult = (n == m); break; + case SQLFilterOperator::LIKE: bResult = (n == m); break; + case SQLFilterOperator::NOT_EQUAL: bResult = (n != m); break; + case SQLFilterOperator::NOT_LIKE: bResult = (n != m); break; + case SQLFilterOperator::LESS: bResult = (n < m); break; + case SQLFilterOperator::LESS_EQUAL: bResult = (n <= m); break; + case SQLFilterOperator::GREATER: bResult = (n > m); break; + case SQLFilterOperator::GREATER_EQUAL: bResult = (n >= m); break; + default: bResult = false; + } + } break; + default: + bResult = aLH == aRH; + } + return bResult; +} + + +void ONumOperator::Exec(OCodeStack& rCodeStack) +{ + OOperand *pRight = rCodeStack.top(); + rCodeStack.pop(); + OOperand *pLeft = rCodeStack.top(); + rCodeStack.pop(); + + rCodeStack.push(new OOperandResultNUM(operate(pLeft->getValue().getDouble(), pRight->getValue().getDouble()))); + if( typeid(OOperandResult) == typeid(*pLeft)) + delete pLeft; + if( typeid(OOperandResult) == typeid(*pRight)) + delete pRight; +} + +double OOp_ADD::operate(const double& fLeft,const double& fRight) const +{ + return fLeft + fRight; +} + + +double OOp_SUB::operate(const double& fLeft,const double& fRight) const +{ + return fLeft - fRight; +} + + +double OOp_MUL::operate(const double& fLeft,const double& fRight) const +{ + return fLeft * fRight; +} + + +double OOp_DIV::operate(const double& fLeft,const double& fRight) const +{ + return fLeft / fRight; +} + +void ONthOperator::Exec(OCodeStack& rCodeStack) +{ + std::vector<ORowSetValue> aValues; + std::vector<OOperand*> aOperands; + OOperand* pOperand; + do + { + OSL_ENSURE(!rCodeStack.empty(),"Stack must be none empty!"); + pOperand = rCodeStack.top(); + rCodeStack.pop(); + assert(pOperand); + if (pOperand && typeid(OStopOperand) != typeid(*pOperand)) + aValues.push_back( pOperand->getValue() ); + aOperands.push_back( pOperand ); + } + while (pOperand && typeid(OStopOperand) != typeid(*pOperand)); + + rCodeStack.push(new OOperandResult(operate(aValues))); + + for (const auto& rpOperand : aOperands) + { + if (typeid(OOperandResult) == typeid(*rpOperand)) + delete rpOperand; + } +} + +void OBinaryOperator::Exec(OCodeStack& rCodeStack) +{ + OOperand *pRight = rCodeStack.top(); + rCodeStack.pop(); + OOperand *pLeft = rCodeStack.top(); + rCodeStack.pop(); + + if ( !rCodeStack.empty() && typeid(OStopOperand) == typeid(*rCodeStack.top()) ) + rCodeStack.pop(); + + rCodeStack.push(new OOperandResult(operate(pLeft->getValue(),pRight->getValue()))); + if(typeid(OOperandResult) == typeid(*pRight)) + delete pRight; + if(typeid(OOperandResult) == typeid(*pLeft)) + delete pLeft; +} + +void OUnaryOperator::Exec(OCodeStack& rCodeStack) +{ + OSL_ENSURE(!rCodeStack.empty(),"Stack is empty!"); + OOperand* pOperand = rCodeStack.top(); + rCodeStack.pop(); + + rCodeStack.push(new OOperandResult(operate(pOperand->getValue()))); + if (typeid(OOperandResult) == typeid(*pOperand)) + delete pOperand; +} + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |