1 /*
   2  * Copyright (c) 2014, 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 package jdk.nashorn.internal.parser;
  26 
  27 import java.util.List;
  28 import jdk.nashorn.internal.ir.Statement;
  29 
  30 /**
  31  * Used for keeping state when needed in the parser.
  32  */
  33 interface ParserContextNode {
  34     /**
  35      * @return The flags for this node
  36      */
  37     public int getFlags();
  38 
  39     /**
  40      * @param flag The flag to set
  41      * @return All current flags after update
  42      */
  43     public int setFlag(final int flag);
  44 
  45     /**
  46      * @return The list of statements that belongs to this node
  47      */
  48     public List<Statement> getStatements();
  49 
  50     /**
  51      * @param statements The statement list
  52      */
  53     public void setStatements(final List<Statement> statements);
  54 
  55     /**
  56      * Adds a statement at the end of the statement list
  57      * @param statement The statement to add
  58      */
  59     public void appendStatement(final Statement statement);
  60 
  61     /**
  62      * Adds a statement at the beginning of the statement list
  63      * @param statement The statement to add
  64      */
  65     public void prependStatement(final Statement statement);
  66 
  67 }