org.objectweb.asm.tree.LabelNode Maven / Gradle / Ivy
// ASM: a very small and fast Java bytecode manipulation framework
// Copyright (c) 2000-2011 INRIA, France Telecom
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package org.objectweb.asm.tree;
import java.util.Map;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor;
/** An {@link AbstractInsnNode} that encapsulates a {@link Label}. */
public class LabelNode extends AbstractInsnNode {
private Label value;
public LabelNode() {
super(-1);
}
public LabelNode(final Label label) {
super(-1);
this.value = label;
}
@Override
public int getType() {
return LABEL;
}
/**
* Returns the label encapsulated by this node. A new label is created and associated with this
* node if it was created without an encapsulated label.
*
* @return the label encapsulated by this node.
*/
public Label getLabel() {
if (value == null) {
value = new Label();
}
return value;
}
@Override
public void accept(final MethodVisitor methodVisitor) {
methodVisitor.visitLabel(getLabel());
}
@Override
public AbstractInsnNode clone(final Map clonedLabels) {
return clonedLabels.get(this);
}
public void resetLabel() {
value = null;
}
}