diff options
Diffstat (limited to 'qlparser/qtunaryoperation.cc')
| -rw-r--r-- | qlparser/qtunaryoperation.cc | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/qlparser/qtunaryoperation.cc b/qlparser/qtunaryoperation.cc new file mode 100644 index 0000000..e05bb23 --- /dev/null +++ b/qlparser/qtunaryoperation.cc @@ -0,0 +1,204 @@ +/* +* This file is part of rasdaman community. +* +* Rasdaman community is free software: you can redistribute it and/or modify +* it under the terms of the GNU General Public License as published by +* the Free Software Foundation, either version 3 of the License, or +* (at your option) any later version. +* +* Rasdaman community 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 General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with rasdaman community. If not, see <http://www.gnu.org/licenses/>. +* +* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann / +rasdaman GmbH. +* +* For more information please see <http://www.rasdaman.org> +* or contact Peter Baumann via <baumann@rasdaman.com>. +*/ +/************************************************************* + * + * + * PURPOSE: + * + * + * COMMENTS: + * + ************************************************************/ + +static const char rcsid[] = "@(#)qlparser, QtUnaryOperation: $Header: /home/rasdev/CVS-repository/rasdaman/qlparser/qtunaryoperation.cc,v 1.23 2003/12/27 20:51:28 rasdev Exp $"; + +#include "qlparser/qtunaryoperation.hh" +#include "qlparser/qtconst.hh" + +#include <iostream> +#ifndef CPPSTDLIB +#include <ospace/string.h> // STL<ToolKit> +#else +#include <string> +using namespace std; +#endif + +QtUnaryOperation::QtUnaryOperation() + : QtOperation(), + input(NULL) +{ +} + + +QtUnaryOperation::QtUnaryOperation( QtOperation* inputInit ) + : QtOperation(), + input( inputInit ) +{ + if( input ) + input->setParent( this ); +} + + +QtUnaryOperation::~QtUnaryOperation() +{ + if( input ) + { + delete input; + input=NULL; + } +} + + + +string +QtUnaryOperation::getSpelling() +{ + char tempStr[20]; + sprintf(tempStr, "%ud", (unsigned long)getNodeType()); + string result = string(tempStr); + result.append( "(" ); + result.append( input->getSpelling() ); + result.append( ")" ); + + return result; +} + + + +void +QtUnaryOperation::simplify() +{ + RMDBCLASS( "QtUnaryOperation", "simplify()", "qlparser", __FILE__, __LINE__ ) + + // In order to work bottom up, first inspect the descendants + QtNode::simplify(); + + // Test, if operand is available. + if( input ) + { + // Test, if operand is of const type. + if( input->getNodeType() == QT_CONST ) + { + // evaluate the self node with no input list + QtData* newConst = this->evaluate( NULL ); + + if( newConst ) + { + // create a new constant node and fill it with newConst + QtConst* newNode = new QtConst( newConst ); + + // set its data stream type + newNode->checkType( NULL ); + + // link it to the parent + getParent()->setInput( this, newNode ); + + // delete the self node and its descendants + delete this; + } + } + } +} + + + +bool +QtUnaryOperation::equalMeaning( QtNode* node ) +{ + RMDBCLASS( "QtUnaryOperation", "equalMeaning( QtNode* )", "qlparser", __FILE__, __LINE__ ) + + bool result = false; + + if( getNodeType() == node->getNodeType() ) + { + QtUnaryOperation* unaryNode = (QtUnaryOperation*) node; // by force + + result = input->equalMeaning( unaryNode->getInput() ); + }; + + return ( result ); +} + + + +QtNode::QtNodeList* +QtUnaryOperation::getChilds( QtChildType flag ) +{ + RMDBCLASS( "QtUnaryOperation", "getChilds( QtChildType )", "qlparser", __FILE__, __LINE__ ) + + QtNodeList* resultList=NULL; + + if( flag == QT_DIRECT_CHILDS ) + resultList = new QtNodeList(); + + if( flag == QT_LEAF_NODES || flag == QT_ALL_NODES ) + resultList = input->getChilds( flag ); + + if( flag == QT_DIRECT_CHILDS || flag == QT_ALL_NODES ) + resultList->push_back( input ); + + return resultList; +} + + +QtNode::QtAreaType +QtUnaryOperation::getAreaType() +{ + return( input->getAreaType() ); +} + + +void +QtUnaryOperation::optimizeLoad( QtTrimList* trimList ) +{ + RMDBCLASS( "QtUnaryOperation", "optimizeLoad( QtTrimList* )", "qlparser", __FILE__, __LINE__ ) + + // by default, pass load domain to the input + if( input ) + input->optimizeLoad( trimList ); + else + { + delete trimList; + trimList=NULL; + } +} + + +void +QtUnaryOperation::printTree( int tab, ostream& s, QtChildType mode ) +{ + if( mode != QtNode::QT_DIRECT_CHILDS ) + if( input ) + { + s << SPACE_STR(tab).c_str() << "input: " << endl; + input->printTree( tab+2, s, mode ); + } + else + s << SPACE_STR(tab).c_str() << "no input" << endl; +} + + + + + + |