本文整理了Java中org.antlr.v4.tool.Grammar.undefineRule()方法的一些代码示例，展示了Grammar.undefineRule()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Grammar.undefineRule()方法的具体详情如下：
包路径：org.antlr.v4.tool.Grammar
类名称：Grammar
方法名：undefineRule

Grammar.undefineRule介绍

[英]Undefine the specified rule from this Grammar instance. The instance r is removed from #rules and #indexToRule. This method updates the Rule#index field for all rules defined after r, and decrements #ruleNumberin preparation for adding new rules.

This method does nothing if the current Grammar does not contain the instance r at index r.index in #indexToRule.
[中]从该语法实例中取消定义指定的规则。实例r将从#规则和#索引规则中删除。此方法更新r之后定义的所有规则的规则#索引字段，并递减#RuleNumber以准备添加新规则。
如果当前语法在#indexToRule中的索引r.index处不包含实例r，则此方法不会执行任何操作。

代码示例

代码示例来源：origin: org.antlr/antlr4

@Override
  public boolean undefineRule(Rule r) {
    if (!super.undefineRule(r)) {
      return false;
    }

    boolean removed = modes.get(r.mode).remove(r);
    assert removed;
    return true;
  }
}

代码示例来源：origin: io.virtdata/virtdata-lib-realer

@Override
  public boolean undefineRule(Rule r) {
    if (!super.undefineRule(r)) {
      return false;
    }

    boolean removed = modes.get(r.mode).remove(r);
    assert removed;
    return true;
  }
}

代码示例来源：origin: com.tunnelvisionlabs/antlr4

@Override
  public boolean undefineRule(Rule r) {
    if (!super.undefineRule(r)) {
      return false;
    }

    boolean removed = modes.get(r.mode).remove(r);
    assert removed;
    return true;
  }
}

代码示例来源：origin: uk.co.nichesolutions/antlr4

@Override
  public boolean undefineRule(Rule r) {
    if (!super.undefineRule(r)) {
      return false;
    }

    boolean removed = modes.get(r.mode).remove(r);
    assert removed;
    return true;
  }
}

代码示例来源：origin: com.impetus.fabric/fabric-jdbc-driver-shaded

@Override
  public boolean undefineRule(Rule r) {
    if (!super.undefineRule(r)) {
      return false;
    }

    boolean removed = modes.get(r.mode).remove(r);
    assert removed;
    return true;
  }
}