Enum FlagRefOption 

pub enum FlagRefOption<T> {
    Some(T),
    Conflict,
    Empty,
    Disabled,
}

Some: 可借用
Conflict: 借用冲突，不符合rust借用原则 Empty: 内部为空，即此FlagRef是从new函数创建的 Disabled: 内部数据当前已禁用

Variants

Some(T)

Conflict

Empty

Disabled

Implementations

impl<T> FlagRefOption<T>

pub fn unwrap(self) -> T

解包 FlagRefOption

Panics

若非 Some ，panic

pub fn into_option(self) -> Option<T>

将自己转换为原生 Option 类型

Some转换为Some，其余全部转换为None

pub fn map<U, F: FnOnce(T) -> U>(self, f: F) -> FlagRefOption<U>

Maps an FlagRefOption<T> to FlagRefOption<U> by applying a function to a contained value (为Some) or returns 原变体 (非Some).

Trait Implementations

impl<T: Debug> Debug for FlagRefOption<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T> From<FlagRefOption<T>> for Option<T>

fn from(f: FlagRefOption<T>) -> Option<T>

Converts to this type from the input type.