Enum Predicate 

pub enum Predicate {
    Eq(Expr, Expr),
    Ne(Expr, Expr),
    Gt(Expr, Expr),
    Gte(Expr, Expr),
    Lt(Expr, Expr),
    Lte(Expr, Expr),
    Like(Expr, Expr),
    IsNull(Expr),
    IsNotNull(Expr),
    And(Vec<Predicate>),
    Or(Vec<Predicate>),
    Not(Box<Predicate>),
}

Variants

Eq(Expr, Expr)

Ne(Expr, Expr)

Gt(Expr, Expr)

Gte(Expr, Expr)

Lt(Expr, Expr)

Lte(Expr, Expr)

Like(Expr, Expr)

IsNull(Expr)

IsNotNull(Expr)

And(Vec<Predicate>)

Or(Vec<Predicate>)

Not(Box<Predicate>)

Implementations

impl Predicate

pub const fn eq(left: Expr, right: Expr) -> Self

pub const fn ne(left: Expr, right: Expr) -> Self

pub const fn gt(left: Expr, right: Expr) -> Self

pub const fn gte(left: Expr, right: Expr) -> Self

pub const fn lt(left: Expr, right: Expr) -> Self

pub const fn lte(left: Expr, right: Expr) -> Self

pub const fn like(left: Expr, right: Expr) -> Self

pub const fn is_null(expr: Expr) -> Self

pub const fn is_not_null(expr: Expr) -> Self

pub fn and(predicates: Vec<Predicate>) -> Self

pub fn or(predicates: Vec<Predicate>) -> Self

pub fn negate(predicate: Predicate) -> Self

Trait Implementations

impl Clone for Predicate

fn clone(&self) -> Predicate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Predicate

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

Formats the value using the given formatter.

impl PartialEq for Predicate

fn eq(&self, other: &Predicate) -> 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 StructuralPartialEq for Predicate