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Maven 3 Plugin for processing JavaCC grammar files.
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/* Copyright (c) 2006, Sun Microsystems, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright notice,
 *       this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Sun Microsystems, Inc. nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.javacc.jjtree;


public class NodeScope
{
  ASTProduction production;
  ASTNodeDescriptor node_descriptor;

  String closedVar;
  String exceptionVar;
  String nodeVar;
  int scopeNumber;

  NodeScope (final ASTProduction p, final ASTNodeDescriptor n)
  {
    production = p;

    if (n == null)
    {
      String nm = production.name;
      if (JJTreeOptions.getNodeDefaultVoid ())
      {
        nm = "void";
      }
      node_descriptor = ASTNodeDescriptor.indefinite (nm);
    }
    else
    {
      node_descriptor = n;
    }

    scopeNumber = production.getNodeScopeNumber (this);
    nodeVar = constructVariable ("n");
    closedVar = constructVariable ("c");
    exceptionVar = constructVariable ("e");
  }

  boolean isVoid ()
  {
    return node_descriptor.isVoid ();
  }

  ASTNodeDescriptor getNodeDescriptor ()
  {
    return node_descriptor;
  }

  String getNodeDescriptorText ()
  {
    return node_descriptor.getDescriptor ();
  }

  String getNodeVariable ()
  {
    return nodeVar;
  }

  private String constructVariable (final String id)
  {
    final String s = "000" + scopeNumber;
    return "jjt" + id + s.substring (s.length () - 3, s.length ());
  }

  boolean usesCloseNodeVar ()
  {
    return true;
  }

  static NodeScope getEnclosingNodeScope (final Node node)
  {
    if (node instanceof ASTBNFDeclaration)
    {
      return ((ASTBNFDeclaration) node).node_scope;
    }
    for (Node n = node.jjtGetParent (); n != null; n = n.jjtGetParent ())
    {
      if (n instanceof ASTBNFDeclaration)
      {
        return ((ASTBNFDeclaration) n).node_scope;
      }
      else
        if (n instanceof ASTBNFNodeScope)
        {
          return ((ASTBNFNodeScope) n).node_scope;
        }
        else
          if (n instanceof ASTExpansionNodeScope)
          {
            return ((ASTExpansionNodeScope) n).node_scope;
          }
    }
    return null;
  }

}

/* end */