/*

 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.

 */

/*

 * 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.

 */

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.ASTORE;

import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen;

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 Santiago Pericas-Geertsen

 */

public final class AttributeSetMethodGenerator extends MethodGenerator {

    protected static final int CURRENT_INDEX  = 4;

    private static final int PARAM_START_INDEX = 5;

    private static final String[] argNames = new String[4];

    private static final com.sun.org.apache.bcel.internal.generic.Type[] argTypes =

        new com.sun.org.apache.bcel.internal.generic.Type[4];

    static {

        argTypes[0] = Util.getJCRefType(DOM_INTF_SIG);

        argTypes[1] = Util.getJCRefType(NODE_ITERATOR_SIG);

        argTypes[2] = Util.getJCRefType(TRANSLET_OUTPUT_SIG);

        argTypes[3] = com.sun.org.apache.bcel.internal.generic.Type.INT;

        argNames[0] = DOCUMENT_PNAME;

        argNames[1] = ITERATOR_PNAME;

        argNames[2] = TRANSLET_OUTPUT_PNAME;

        argNames[3] = NODE_PNAME;

    }

   public AttributeSetMethodGenerator(String methodName, ClassGenerator classGen) {

        super(com.sun.org.apache.bcel.internal.Const.ACC_PRIVATE,

              com.sun.org.apache.bcel.internal.generic.Type.VOID,

              argTypes, argNames, methodName,

              classGen.getClassName(),

              new InstructionList(),

              classGen.getConstantPool());

   }

    public int getLocalIndex(String name) {

        if (name.equals("current")) {

            return CURRENT_INDEX;

        }

        return super.getLocalIndex(name);

    }

    public Instruction loadParameter(int index) {

        return new ALOAD(index + PARAM_START_INDEX);

    }

    public Instruction storeParameter(int index) {

        return new ASTORE(index + PARAM_START_INDEX);

    }

}