else if (st.equals("comp"))
return COMP;
else
- throw new Error();
+ throw new Error(st);
}
public String toString() {
return "predec";
else if (operation==ASSIGN)
return "assign";
- else throw new Error();
+ else if (operation==ISAVAILABLE)
+ return "isavailable";
+ else throw new Error("op="+operation);
}