Enum ExprValue 

pub enum ExprValue {
    Integer(i64),
    Str(String),
}

A value produced by evaluating an expr expression.

Variants

Integer(i64)

Str(String)

Implementations

impl ExprValue

pub fn is_null(&self) -> bool

Returns true if this value is considered “null” (empty string or integer 0).

pub fn as_integer(&self) -> Option<i64>

Try to interpret this value as an integer.

Trait Implementations

impl Clone for ExprValue

fn clone(&self) -> ExprValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExprValue

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

Formats the value using the given formatter.

impl Display for ExprValue

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

Formats the value using the given formatter.

impl PartialEq for ExprValue

fn eq(&self, other: &ExprValue) -> 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 Eq for ExprValue

impl StructuralPartialEq for ExprValue