| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| /* |
| * $Id$ |
| */ |
| |
| package org.apache.xalan.xsltc.compiler.util; |
| |
| import org.apache.bcel.generic.ALOAD; |
| import org.apache.bcel.generic.ConstantPoolGen; |
| import org.apache.bcel.generic.ILOAD; |
| import org.apache.bcel.generic.ISTORE; |
| import org.apache.bcel.generic.Instruction; |
| import org.apache.bcel.generic.InstructionList; |
| import org.apache.bcel.generic.Type; |
| |
| /** |
| * @author Jacek Ambroziak |
| * @author Santiago Pericas-Geertsen |
| */ |
| public final class MatchGenerator extends MethodGenerator { |
| private static int CURRENT_INDEX = 1; |
| |
| private int _iteratorIndex = INVALID_INDEX; |
| |
| private final Instruction _iloadCurrent; |
| private final Instruction _istoreCurrent; |
| private Instruction _aloadDom; |
| |
| public MatchGenerator(int access_flags, Type return_type, |
| Type[] arg_types, String[] arg_names, |
| String method_name, String class_name, |
| InstructionList il, ConstantPoolGen cp) { |
| super(access_flags, return_type, arg_types, arg_names, method_name, |
| class_name, il, cp); |
| |
| _iloadCurrent = new ILOAD(CURRENT_INDEX); |
| _istoreCurrent = new ISTORE(CURRENT_INDEX); |
| } |
| |
| public Instruction loadCurrentNode() { |
| return _iloadCurrent; |
| } |
| |
| public Instruction storeCurrentNode() { |
| return _istoreCurrent; |
| } |
| |
| public int getHandlerIndex() { |
| return INVALID_INDEX; // not available |
| } |
| |
| /** |
| * Get index of the register where the DOM is stored. |
| */ |
| public Instruction loadDOM() { |
| return _aloadDom; |
| } |
| |
| /** |
| * Set index where the reference to the DOM is stored. |
| */ |
| public void setDomIndex(int domIndex) { |
| _aloadDom = new ALOAD(domIndex); |
| } |
| |
| /** |
| * Get index of the register where the current iterator is stored. |
| */ |
| public int getIteratorIndex() { |
| return _iteratorIndex; |
| } |
| |
| /** |
| * Set index of the register where the current iterator is stored. |
| */ |
| public void setIteratorIndex(int iteratorIndex) { |
| _iteratorIndex = iteratorIndex; |
| } |
| |
| public int getLocalIndex(String name) { |
| if (name.equals("current")) { |
| return CURRENT_INDEX; |
| } |
| return super.getLocalIndex(name); |
| } |
| } |