Enum ConditionValue

pub enum ConditionValue<'a> {
    None,
    Single(Cow<'a, str>),
    Multiple(Vec<Cow<'a, str>>),
    Range(Cow<'a, str>, Cow<'a, str>),
}

查询条件值枚举，减少内存占用

Variants

None

Single(Cow<'a, str>)

Multiple(Vec<Cow<'a, str>>)

Range(Cow<'a, str>, Cow<'a, str>)

Trait Implementations

impl<'a> Clone for ConditionValue<'a>

fn clone(&self) -> ConditionValue<'a>

Returns a duplicate of the value.

const fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Debug for ConditionValue<'a>

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

Formats the value using the given formatter.