/// <summary>
/// 初始化变量表
/// </summary>
/// <param name="varTable">变量表</param>
/// <param name="fourExpList">四元式列表</param>
/// <param name="varNameList">变量表中变量名的列表</param>
private void initVarTable(VarTable varTable, List <FourExp> fourExpList, List <string> varNameList)
{
short address = 0x0000;
foreach (string varName in varNameList)
{
//初始化变量表中的变量地址和活跃信息域
varTable.SetAddr(varName, address);
address += 4;
//varTable.ClearRefeInfo(varName);
varTable.ClearActInfo(varName);
varTable.PushActInfo(varName, false);
//varTable.PushRefeInfo(varName, -1);
}
//扫描四元式表，在变量表中填入相关信息
int count = fourExpList.Count;
int length = count;
for (int i = length; i != 0; i--)
{
string A = fourExpList[i].Result;
string B = fourExpList[i].Arg1;
string C = fourExpList[i].Arg2;
if (A != "")
{
//varTable.PushRefeInfo(A, -1);
varTable.PushActInfo(A, false);
}
if (B != "")
{
//varTable.PushRefeInfo(B, count);
varTable.PushActInfo(B, true);
}
if (C != "")
{
//varTable.PushRefeInfo(C, count);
varTable.PushActInfo(C, true);
}
count--;
}
}
