Struct ExprNot 

pub struct ExprNot {
    pub expr: Box<Expr>,
}

Negates a boolean expression.

Returns true if the inner expression evaluates to false, and vice versa. Returns NULL if the inner expression evaluates to NULL.

Examples

not(true)   // returns `false`
not(false)  // returns `true`
not(null)   // returns `null`

Fields

expr: Box<Expr>

The expression to negate.

Trait Implementations

impl Clone for ExprNot

fn clone(&self) -> ExprNot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExprNot

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

Formats the value using the given formatter.

impl From<ExprNot> for Expr

fn from(value: ExprNot) -> Self

Converts to this type from the input type.

impl PartialEq for ExprNot

fn eq(&self, other: &ExprNot) -> 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 ExprNot