Enum ComparisonOperator

pub enum ComparisonOperator {
    Equal,
    NotEqual,
    LessThan,
    GreaterThan,
    LessThanOrEqual,
    GreaterThanOrEqual,
    In,
    NotIn,
}

比较操作符枚举 定义了比较运算操作符

Variants

Equal

NotEqual

LessThan

GreaterThan

LessThanOrEqual

GreaterThanOrEqual

In

NotIn

Trait Implementations

impl Clone for ComparisonOperator

fn clone(&self) -> ComparisonOperator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ComparisonOperator

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

Formats the value using the given formatter.

impl Display for ComparisonOperator

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

Formats the value using the given formatter.

impl FromStr for ComparisonOperator

type Err = ParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<ComparisonOperator, <Self as FromStr>::Err>

Parses a string s to return a value of this type.

impl PartialEq for ComparisonOperator

fn eq(&self, other: &ComparisonOperator) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TryFrom<&str> for ComparisonOperator

type Error = ParseError

The type returned in the event of a conversion error.

fn try_from( s: &str, ) -> Result<ComparisonOperator, <Self as TryFrom<&str>>::Error>

Performs the conversion.

impl Copy for ComparisonOperator

impl Eq for ComparisonOperator

impl StructuralPartialEq for ComparisonOperator