/***
* ASM: a very small and fast Java bytecode manipulation framework
* Copyright (c) 2000-2007 INRIA, France Telecom
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
package br.com.caelum.vraptor.asm.tree;
import java.util.Map;
import br.com.caelum.vraptor.asm.Label;
import br.com.caelum.vraptor.asm.MethodVisitor;
/**
* An {@link AbstractInsnNode} that encapsulates a {@link Label}.
*/
@SuppressWarnings("unchecked")
public class LabelNode extends AbstractInsnNode {
private Label label;
public LabelNode() {
super(-1);
}
public LabelNode(final Label label) {
super(-1);
this.label = label;
}
@Override
public int getType() {
return LABEL;
}
public Label getLabel() {
if (label == null) {
label = new Label();
}
return label;
}
@Override
public void accept(final MethodVisitor cv) {
cv.visitLabel(getLabel());
}
@Override
public AbstractInsnNode clone(final Map labels) {
return (LabelNode) labels.get(this);
}
public void resetLabel() {
label = null;
}
}