/**
* Copyright 2004-2016 Riccardo Solmi. All rights reserved.
* This file is part of the Whole Platform.
*
* The Whole Platform is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Whole Platform 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the Whole Platform. If not, see <http://www.gnu.org/licenses/>.
*/
package org.whole.lang.visitors;
import org.whole.lang.bindings.IBindingManager;
import org.whole.lang.operations.ICloneContext;
/**
* @author Riccardo Solmi
*/
public abstract class AbstractBinaryVisitor<V extends IVisitor> extends AbstractUnaryVisitor<V> implements IBinaryVisitor {
private V visitor2;
protected boolean lazyCloneVisitor2;
public AbstractBinaryVisitor(IVisitor visitor1, IVisitor visitor2) {
super(visitor1);
wSetVisitor2(visitor2);
}
@SuppressWarnings("unchecked")
@Override
public IVisitor clone(ICloneContext cc) {
AbstractBinaryVisitor<V> visitor = (AbstractBinaryVisitor<V>) super.clone(cc);
visitor.lazyCloneVisitor2 = lazyCloneVisitor2 = visitor2 != null;
return visitor;
}
protected boolean isLazyCloneEmpty() {
return !lazyCloneVisitor2 && super.isLazyCloneEmpty();
}
public V wGetVisitor2() {
if (lazyCloneVisitor2) {
wSetVisitor2(getCloneContext().clone(visitor2));
visitor2.setBindings(bindings);
}
return visitor2;
}
@SuppressWarnings("unchecked")
public void wSetVisitor2(IVisitor visitor) {
this.visitor2 = (V) visitor;
lazyCloneVisitor2 = false;
updateCloneContext();
}
@Override
public void setBindings(IBindingManager bm) {
if (bindings != bm) {
super.setBindings(bm);
if (!lazyCloneVisitor2)
wGetVisitor2().setBindings(bm);
}
}
}