/*
* 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 org.formulacompiler.compiler.CompilerException;
import org.formulacompiler.compiler.internal.expressions.ExpressionNode;
import org.formulacompiler.compiler.internal.model.AbstractComputationModelVisitor;
import org.formulacompiler.compiler.internal.model.CellModel;
import org.formulacompiler.compiler.internal.model.ComputationModel;
import org.formulacompiler.compiler.internal.model.analysis.TypeAnnotator;
import org.formulacompiler.compiler.internal.model.interpreter.InterpretedNumericType;
public final class ModelRewriter extends AbstractComputationModelVisitor
{
private final ExpressionRewriter rewriter;
private ComputationModel model;
public ModelRewriter( InterpretedNumericType _type )
{
super();
this.rewriter = new ExpressionRewriter( _type, new NameSanitizer() );
}
@Override
protected boolean visitModel( ComputationModel _model ) throws CompilerException
{
this.model = _model;
return super.visitModel( _model );
}
@Override
protected boolean visitedModel( ComputationModel _model ) throws CompilerException
{
this.model = null;
return super.visitedModel( _model );
}
@Override
protected boolean visitCell( CellModel _cell ) throws CompilerException
{
final ExpressionNode expr = _cell.getExpression();
if (null != expr) {
_cell.setExpression( this.rewriter.rewrite( this.model, expr ) );
// Re-establish invariant: everything within a typed cell is fully typed.
if (null != _cell.getDataType())
TypeAnnotator.annotateExpr( _cell.getExpression() );
}
return true;
}
}