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 * Licensed to the Apache Software Foundation (ASF) under one or more
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 * (the "License"); you may not use this file except in compliance with
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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.Instruction;
import com.sun.org.apache.xalan.internal.xsltc.compiler.Stylesheet;

This class implements auxliary classes needed to compile
filters (predicates). These classes defined a single method
of type TestGenerator.
Author:
Jacek Ambroziak, Santiago Pericas-Geertsen/**
 * This class implements auxliary classes needed to compile
 * filters (predicates). These classes defined a single method
 * of type <tt>TestGenerator</tt>.
 * @author Jacek Ambroziak
 * @author Santiago Pericas-Geertsen
 */
public final class FilterGenerator extends ClassGenerator {
    private static int TRANSLET_INDEX = 5;   // translet
    private final Instruction _aloadTranslet;

    public FilterGenerator(String className, String superClassName,
                           String fileName,
                           int accessFlags, String[] interfaces,
                           Stylesheet stylesheet) {
        super(className, superClassName, fileName,
              accessFlags, interfaces, stylesheet);

        _aloadTranslet = new ALOAD(TRANSLET_INDEX);
    }

    
The index of the translet pointer within the execution of
the test method.
/**
     * The index of the translet pointer within the execution of
     * the test method.
     */
    public final Instruction loadTranslet() {
        return _aloadTranslet;
    }

    
Returns true since this class is external to the
translet.
/**
     * Returns <tt>true</tt> since this class is external to the
     * translet.
     */
    public boolean isExternal() {
        return true;
    }
}