JDK14/Java14源码在线阅读

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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.ASTORE;
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
 * @author Morten Jorgensen
 */
public final class TestGenerator extends MethodGenerator {
    private static int CONTEXT_NODE_INDEX = 1;
    private static int CURRENT_NODE_INDEX = 4;
    private static int ITERATOR_INDEX = 6;

    private Instruction _aloadDom;
    private final Instruction _iloadCurrent;
    private final Instruction _iloadContext;
    private final Instruction _istoreCurrent;
    private final Instruction _istoreContext;
    private final Instruction _astoreIterator;
    private final Instruction _aloadIterator;

    public TestGenerator(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_NODE_INDEX);
        _istoreCurrent = new ISTORE(CURRENT_NODE_INDEX);
        _iloadContext  = new ILOAD(CONTEXT_NODE_INDEX);
        _istoreContext  = new ILOAD(CONTEXT_NODE_INDEX);
        _astoreIterator = new ASTORE(ITERATOR_INDEX);
        _aloadIterator  = new ALOAD(ITERATOR_INDEX);
    }

    public int getHandlerIndex() {
        return INVALID_INDEX;           // not available
    }

    public int getIteratorIndex() {
        return ITERATOR_INDEX;          // not available
    }

    public void setDomIndex(int domIndex) {
        _aloadDom = new ALOAD(domIndex);
    }

    public Instruction loadDOM() {
        return _aloadDom;
    }

    public Instruction loadCurrentNode() {
        return _iloadCurrent;
    }

    /** by default context node is the same as current node. MK437 */
    public Instruction loadContextNode() {
        return _iloadContext;
    }

    public Instruction storeContextNode() {
        return _istoreContext;
    }

    public Instruction storeCurrentNode() {

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