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: NameBase.java,v 1.2.4.1 2005/09/02 10:17:31 pvedula Exp $
   */
  
  package jaxp.sun.org.apache.xalan.internal.xsltc.compiler;
  
  import java.util.Vector;
  
  import jaxp.sun.org.apache.bcel.internal.generic.ConstantPoolGen;
  import jaxp.sun.org.apache.bcel.internal.generic.INVOKESTATIC;
  import jaxp.sun.org.apache.bcel.internal.generic.InstructionList;
  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;
  
  /**
   * @author Morten Jorgensen
   * @author Erwin Bolwidt <ejb@klomp.org>
   */
  class NameBase extends FunctionCall {
  
      private Expression _param = null;
      private Type _paramType = Type.Node;
  
      /**
       * Handles calls with no parameter (current node is implicit parameter).
       */
      public NameBase(QName fname) {
          super(fname);
      }
  
      /**
       * Handles calls with one parameter (either node or node-set).
       */
      public NameBase(QName fname, Vector arguments) {
          super(fname, arguments);
          _param = argument(0);
      }
  
  
      /**
       * Check that we either have no parameters or one parameter that is
       * either a node or a node-set.
       */
      public Type typeCheck(SymbolTable stable) throws TypeCheckError {
  
          // Check the argument type (if any)
          switch(argumentCount()) {
          case 0:
              _paramType = Type.Node;
              break;
          case 1:
              _paramType = _param.typeCheck(stable);
              break;
          default:
              throw new TypeCheckError(this);
          }
  
          // The argument has to be a node, a node-set or a node reference
          if ((_paramType != Type.NodeSet) &&
              (_paramType != Type.Node) &&
              (_paramType != Type.Reference)) {
              throw new TypeCheckError(this);
          }
  
          return (_type = Type.String);
      }
  
      public Type getType() {
          return _type;
      }
  
      /**
       * Translate the code required for getting the node for which the
       * QName, local-name or namespace URI should be extracted.
       */
      public void translate(ClassGenerator classGen,
                            MethodGenerator methodGen) {
          final ConstantPoolGen cpg = classGen.getConstantPool();
          final InstructionList il = methodGen.getInstructionList();
  
          il.append(methodGen.loadDOM());
  
          // Function was called with no parameters
          if (argumentCount() == 0) {
              il.append(methodGen.loadContextNode());
          }
          // Function was called with node parameter
          else if (_paramType == Type.Node) {
              _param.translate(classGen, methodGen);
          }
          else if (_paramType == Type.Reference) {
              _param.translate(classGen, methodGen);
              il.append(new INVOKESTATIC(cpg.addMethodref
                                         (BASIS_LIBRARY_CLASS,
                                          "referenceToNodeSet",
                                          "("
                                          + OBJECT_SIG
                                          + ")"
                                          + NODE_ITERATOR_SIG)));
              il.append(methodGen.nextNode());
          }
          // Function was called with node-set parameter
          else {
              _param.translate(classGen, methodGen);
              _param.startIterator(classGen, methodGen);
              il.append(methodGen.nextNode());
          }
      }
  }
  