- /*
- * 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: MatchGenerator.java,v 1.5 2004/02/16 22:26:45 minchau Exp $
- */
-
- package com.sun.org.apache.xalan.internal.xsltc.compiler.util;
-
- import com.sun.org.apache.bcel.internal.generic.ALOAD;
- import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen;
- import com.sun.org.apache.bcel.internal.generic.ILOAD;
- import com.sun.org.apache.bcel.internal.generic.ISTORE;
- import com.sun.org.apache.bcel.internal.generic.Instruction;
- import com.sun.org.apache.bcel.internal.generic.InstructionList;
- import com.sun.org.apache.bcel.internal.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);
- }
- }