Method count

basex-core/src/main/java/org/basex/query/func/Closure.java:226–233

(final Var var)

  }

  @Override
  public VarUsage count(final Var var) {
    VarUsage all = VarUsage.NEVER;
    for(final Expr ex : global.values()) {
      if((all = all.plus(ex.count(var))) == VarUsage.MORE_THAN_ONCE) break;
    }
    return all;
  }

  /**
   * Returns a copy of this closure with refined parameter types.