public EnviromentBlock EnterBlock(EnviromentBlock block)
{
if (current == null)
current = block;
else {
current.Next = block;
block.Pre = current;
current = block;
}
return current;
}
public void LeaveBlock()
{
current = current.Pre;
if (current != null)
current.Next = null;
}
public EnviromentBlock EnterBlock(string name)
{
EnviromentBlock block = new EnviromentBlock(name);
block.Name = name;
if (current == null)
current = block;
else {
current.Next = block;
block.Pre = current;
current = block;
}
return current;
}
