public Compiler(string path)
{
source = path;
la = new lexical_analysis(this);
sa = new syntax_Analysis(this);
st = new symbol_table(this);
error = new Error(this);
pc = new Pcode();
}
//添加到符号表中
public void add(symlist sym)
{
syntax_Analysis sa = compiler.sa;
if (sa.level > point)
{
point++;
dx[point] = dx[point - 1];
}
else if (sa.level < point)
{
//int delnum = dx[point] - dx[point - 1];
//for (int i = 0; i < delnum; i++)
// stable.RemoveAt(stable.Count - 1);
//point--;
}
dx[point]++;
record re = new record();
re.name = compiler.la.word;
if (sym == symlist.constsym)
{
re.kind = "constant";
re.val = compiler.la.num;
stable.Add(re);
}
else if (sym == symlist.varsym)
{
re.kind = "variable";
re.level = sa.level;
//获取地址还没写re.adr =
re.adr = compiler.sa.getadd();
stable.Add(re);
}
else if (sym == symlist.proceduresym)
{
re.kind = "procedure";
re.level = sa.level;
stable.Add(re);
}
}