Method maximum

basex-core/src/main/java/org/basex/query/var/VarUsage.java:67–74

Checks how often a variable or context reference is used in any of the given expressions. @param var variable (Var reference) or context (null) to inline @param exprs expressions @return maximum number of accesses in any given expression

(final Var var, final Expr... exprs)

   * @return maximum number of accesses in any given expression
   */
  public static VarUsage maximum(final Var var, final Expr... exprs) {
    VarUsage any = NEVER;
    for(final Expr expr : exprs) {
      any = any.max(expr.count(var));
      if(any == MORE_THAN_ONCE) break;
    }
    return any;
  }
}