001    // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
002    // for details. All rights reserved. Use of this source code is governed by a
003    // BSD-style license that can be found in the LICENSE file.
004    
005    package org.jetbrains.kotlin.js.backend.ast;
006    
007    import org.jetbrains.kotlin.js.common.Symbol;
008    import org.jetbrains.kotlin.js.util.AstUtil;
009    import org.jetbrains.annotations.NotNull;
010    
011    /**
012     * Represents a JavaScript label statement.
013     */
014    public class JsLabel extends SourceInfoAwareJsNode implements JsStatement, HasName {
015        private JsName label;
016    
017        private JsStatement statement;
018    
019        public JsLabel(JsName label) {
020            this.label = label;
021        }
022    
023        public JsLabel(JsName label, JsStatement statement) {
024            this.label = label;
025            this.statement = statement;
026        }
027    
028        @Override
029        public JsName getName() {
030            return label;
031        }
032    
033        @Override
034        public void setName(JsName name) {
035            label = name;
036        }
037    
038        @Override
039        public Symbol getSymbol() {
040            return label;
041        }
042    
043        public JsStatement getStatement() {
044            return statement;
045        }
046    
047        public void setStatement(JsStatement statement) {
048            this.statement = statement;
049        }
050    
051        @Override
052        public void accept(JsVisitor v) {
053            v.visitLabel(this);
054        }
055    
056        @Override
057        public void acceptChildren(JsVisitor visitor) {
058            visitor.accept(statement);
059        }
060    
061        @Override
062        public void traverse(JsVisitorWithContext v, JsContext ctx) {
063            if (v.visit(this, ctx)) {
064                statement = v.acceptStatement(statement);
065            }
066            v.endVisit(this, ctx);
067        }
068    
069        @NotNull
070        @Override
071        public JsLabel deepCopy() {
072            return new JsLabel(label, AstUtil.deepCopy(statement.deepCopy())).withMetadataFrom(this);
073        }
074    }