public static void Append(IrStmt irStmt)
{
if (irStmt != null)
irStmt.GenerateIrData();
else
Append(" [null]\n");
}
public void add(IrStmt s)
{
if (s is IrStmtList)
{
IrStmtList sl = (IrStmtList) s;
for (int i=0; i<sl.size(); i++)
list.Add(sl.elementAt(i));
}
else
{
list.Add(s);
}
}
private bool nullSTMT(IrStmt s)
{
if (null != (s as IrStmtList))
return ((IrStmtList)s).size() == 0;
else
return s == null;
}
private IrStmt mergeSTMTs(IrStmt s1, IrStmt s2, IrStmt s3)
{
if (nullSTMT(s1)) return mergeSTMTs(s2, s3);
if (nullSTMT(s2)) return mergeSTMTs(s1, s3);
IrStmtList sl = new IrStmtList();
sl.add(s1);
sl.add(mergeSTMTs(s2, s3));
return sl;
}
private IrStmt mergeSTMTs(IrStmt s1, IrStmt s2)
{
if (nullSTMT(s1)) return s2;
if (nullSTMT(s2)) return s1;
IrStmtList sl = new IrStmtList();
sl.add(s1);
sl.add(s2);
return sl;
}
private IrStmt mergeStmts(IrStmt s1, IrStmt s2)
{
if (s1 == null) return s2;
if (s2 == null) return s1;
IrStmtList sl = new IrStmtList();
sl.add(s1);
sl.add(s2);
return sl;
}