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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.codegen.Label;
import jdk.nashorn.internal.ir.annotations.Immutable;
import jdk.nashorn.internal.ir.visitor.NodeVisitor;
/**
* IR representation for CONTINUE statements.
*/
@Immutable
public class ContinueNode extends JumpStatement {
private static final long serialVersionUID = 1L;
/**
* Constructor
*
* @param lineNumber line number
* @param token token
* @param finish finish
* @param labelName label name for continue or null if none
*/
public ContinueNode(final int lineNumber, final long token, final int finish, final String labelName) {
super(lineNumber, token, finish, labelName);
}
private ContinueNode(final ContinueNode continueNode, final LocalVariableConversion conversion) {
super(continueNode, conversion);
}
@Override
public Node accept(final NodeVisitor<? extends LexicalContext> visitor) {
if (visitor.enterContinueNode(this)) {
return visitor.leaveContinueNode(this);
}
return this;
}
@Override
JumpStatement createNewJumpStatement(final LocalVariableConversion conversion) {
return new ContinueNode(this, conversion);
}
@Override
String getStatementName() {
return "continue";
}
@Override
public BreakableNode getTarget(final LexicalContext lc) {
return lc.getContinueTo(getLabelName());
}
@Override
Label getTargetLabel(final BreakableNode target) {
return ((LoopNode)target).getContinueLabel();
}
}
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