content: /*
   *  This file is part of AndroidIDE.
   *
   *  AndroidIDE is free software: you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation, either version 3 of the License, or
   *  (at your option) any later version.
   *
   *  AndroidIDE 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 for more details.
   *
   *  You should have received a copy of the GNU General Public License
   *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
   */
  
  /*
   * reserved comment block
   * DO NOT REMOVE OR ALTER!
   */
  /*
   * Copyright 2001-2004 The Apache Software Foundation.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  /*
   * $Id: LocationPathPattern.java,v 1.2.4.1 2005/09/12 10:42:42 pvedula Exp $
   */
  
  package jaxp.sun.org.apache.xalan.internal.xsltc.compiler;
  
  import jaxp.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator;
  import jaxp.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;
  import jaxp.sun.org.apache.xalan.internal.xsltc.compiler.util.Type;
  import jaxp.sun.org.apache.xalan.internal.xsltc.compiler.util.TypeCheckError;
  import jaxp.sun.org.apache.xml.internal.dtm.Axis;
  
  /**
   * @author Jacek Ambroziak
   * @author Santiago Pericas-Geertsen
   * @author Morten Jorgensen
   */
  public abstract class LocationPathPattern extends Pattern {
      private Template _template;
      private int _importPrecedence;
      private double _priority = Double.NaN;
      private int _position = 0;
  
      public Type typeCheck(SymbolTable stable) throws TypeCheckError {
          return Type.Void;               // TODO
      }
  
      public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
          // TODO: What does it mean to translate a Pattern ?
      }
  
      public void setTemplate(final Template template) {
          _template = template;
          _priority = template.getPriority();
          _importPrecedence = template.getImportPrecedence();
          _position = template.getPosition();
      }
  
      public Template getTemplate() {
          return _template;
      }
  
      public final double getPriority() {
          return Double.isNaN(_priority) ? getDefaultPriority() : _priority;
      }
  
      public double getDefaultPriority() {
          return 0.5;
      }
  
      /**
       * This method is used by the Mode class to prioritise patterns and
       * template. This method is called for templates that are in the same
       * mode and that match on the same core pattern. The rules used are:
       *  o) first check precedence - highest precedence wins
       *  o) then check priority - highest priority wins
       *  o) then check the position - the template that occured last wins
       */
      public boolean noSmallerThan(LocationPathPattern other) {
          if (_importPrecedence > other._importPrecedence) {
              return true;
          }
          else if (_importPrecedence == other._importPrecedence) {
              if (_priority > other._priority) {
                  return true;
              }
              else if (_priority == other._priority) {
                  if (_position > other._position) {
                      return true;
                  }
              }
          }
          return false;
      }
  
      public abstract StepPattern getKernelPattern();
  
      public abstract void reduceKernelPattern();
  
      public abstract boolean isWildcard();
  
      public int getAxis() {
          final StepPattern sp = getKernelPattern();
          return (sp != null) ? sp.getAxis() : Axis.CHILD;
      }
  
      public String toString() {
          return "root()";
      }
  }
  