1 /*
   2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.nashorn.api.tree;
  27 
  28 import jdk.nashorn.internal.ir.LiteralNode;
  29 import jdk.nashorn.internal.parser.Lexer;
  30 
  31 final class RegExpLiteralTreeImpl extends ExpressionTreeImpl 
  32     implements RegExpLiteralTree {
  33     private final String pattern;
  34     private final String options;
  35     RegExpLiteralTreeImpl(final LiteralNode<?> node) {
  36         super(node);
  37         assert node.getValue() instanceof Lexer.RegexToken : "regexp expected";
  38         final Lexer.RegexToken regex = (Lexer.RegexToken) node.getValue();
  39         this.pattern = regex.getExpression();
  40         this.options = regex.getOptions();
  41     }
  42     
  43     @Override
  44     public Kind getKind() {
  45         return Kind.REGEXP_LITERAL;
  46     }
  47     
  48     @Override
  49     public String getPattern() {
  50         return pattern;
  51     }
  52     
  53     @Override
  54     public String getOptions() {
  55         return options;
  56     }
  57     
  58     @Override
  59     public <R,D> R accept(TreeVisitor<R,D> visitor, D data) {
  60         return visitor.visitRegExpLiteral(this, data);
  61     }
  62 }