operator.java

来自「实现JAVA界面的代码GWT」· Java 代码 · 共 48 行

// Decompiled by Jad v1.5.7g. Copyright 2000 Pavel Kouznetsov.
// Jad home page: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi 
// Source File Name:   Operator.java

package jxl.biff.formula;

import java.util.Stack;

// Referenced classes of package jxl.biff.formula:
//            ParseItem

abstract class Operator extends ParseItem
{

    private ParseItem operands[];

    public Operator()
    {
        operands = new ParseItem[0];
    }

    protected void setOperandAlternateCode()
    {
        for(int i = 0; i < operands.length; i++)
            operands[i].setAlternateCode();

    }

    protected void add(ParseItem n)
    {
        n.setParent(this);
        ParseItem newOperands[] = new ParseItem[operands.length + 1];
        System.arraycopy(operands, 0, newOperands, 0, operands.length);
        newOperands[operands.length] = n;
        operands = newOperands;
    }

    public abstract void getOperands(Stack stack);

    protected ParseItem[] getOperands()
    {
        return operands;
    }

    abstract int getPrecedence();
}