/*
* Copyright (c) 2006-2009 by Abacus Research AG, Switzerland.
* All rights reserved.
*
* This file is part of the Abacus Formula Compiler (AFC).
*
* For commercial licensing, please contact sales(at)formulacompiler.com.
*
* AFC 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.
*
* AFC 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 AFC. If not, see <http://www.gnu.org/licenses/>.
*/
package org.formulacompiler.compiler.internal.model.rewriting;
import java.util.List;
import org.formulacompiler.compiler.CompilerException;
import org.formulacompiler.compiler.internal.expressions.ExpressionNode;
import org.formulacompiler.compiler.internal.expressions.ExpressionNodeForSubstitution;
import org.formulacompiler.compiler.internal.model.AbstractComputationModelVisitor;
import org.formulacompiler.compiler.internal.model.CellModel;
import org.formulacompiler.runtime.New;
public final class SubstitutionInliner extends AbstractComputationModelVisitor
{
public SubstitutionInliner()
{
super();
}
@Override
protected boolean visitCell( CellModel _cell ) throws CompilerException
{
final ExpressionNode expr = _cell.getExpression();
if (null != expr) {
inline( expr );
}
return true;
}
private void inline( ExpressionNode _expr )
{
if (null != _expr) {
_expr.replaceArguments( inline( _expr.arguments() ) );
}
}
private List<ExpressionNode> inline( List<ExpressionNode> _list )
{
final List<ExpressionNode> result = New.list();
for (final ExpressionNode node : _list) {
inline( node, result );
}
return result;
}
private void inline( ExpressionNode _node, List<ExpressionNode> _result )
{
if (_node instanceof ExpressionNodeForSubstitution) {
for (final ExpressionNode elt : _node.arguments()) {
inline( elt, _result );
}
}
else {
inline( _node );
_result.add( _node );
}
}
}