// EQU expressions
public Symbol(String name, Location loc, Expr expr) {
this.name = name;
this.loc = loc;
this.scope = Scope.LOCAL;
this.expr = expr;
this.dependencyCount = expr.countSyms();
}
public void eval(Program program) throws AsmError {
if (evaluated) return;
if (expr != null) value = expr.eval(program);
evaluated = true;
}
public String exprToString() {
if (scope == Scope.IMPORTED) return "";
return expr == null ? "label" : expr.toString();
}