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/*
* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package jdk.nashorn.internal.ir;
import jdk.nashorn.internal.ir.annotations.Ignore;
import jdk.nashorn.internal.runtime.Source;
/**
* IR base class for break and continue.
*
*/
public abstract class LabeledNode extends Node {
/** Optional label. */
@Ignore
protected final LabelNode labelNode;
/** Target control node. */
@Ignore
protected final Node targetNode;
/** Try chain. */
@Ignore
protected final TryNode tryChain;
/** scope nesting level */
protected int scopeNestingLevel;
/**
* Constructor
*
* @param source the source
* @param token token
* @param finish finish
* @param labelNode the label node
* @param targetNode the place to break to
* @param tryChain the try chain
*/
public LabeledNode(final Source source, final long token, final int finish, final LabelNode labelNode, final Node targetNode, final TryNode tryChain) {
super(source, token, finish);
this.labelNode = labelNode;
this.targetNode = targetNode;
this.tryChain = tryChain;
}
/**
* Copy constructor
*
* @param labeledNode source node
* @param cs copy state
*/
protected LabeledNode(final LabeledNode labeledNode, final CopyState cs) {
super(labeledNode);
this.labelNode = (LabelNode)cs.existingOrCopy(labeledNode.labelNode);
this.targetNode = cs.existingOrSame(labeledNode.targetNode);
this.tryChain = (TryNode)cs.existingOrSame(labeledNode.tryChain);
this.scopeNestingLevel = labeledNode.scopeNestingLevel;
}
/**
* Get the label
* @return the label
*/
public LabelNode getLabel() {
return labelNode;
}
/**
* Get the target node
* @return the target node
*/
public Node getTargetNode() {
return targetNode;
}
/**
* Get the surrounding try chain
* @return the try chain
*/
public TryNode getTryChain() {
return tryChain;
}
/**
* Get the scope nesting level
* @return nesting level
*/
public int getScopeNestingLevel() {
return scopeNestingLevel;
}
/**
* Set scope nesting level
* @param level the new level
*/
public void setScopeNestingLevel(final int level) {
scopeNestingLevel = level;
}
}
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