Enum Expr

pub enum Expr<'a> {
    Bool(bool),
    Num(f64),
    Ident(Cow<'a, str>),
    Neg(Box<Expr<'a>>),
    Not(Box<Expr<'a>>),
    Mul(Box<Expr<'a>>, Box<Expr<'a>>),
    Div(Box<Expr<'a>>, Box<Expr<'a>>),
    Add(Box<Expr<'a>>, Box<Expr<'a>>),
    Sub(Box<Expr<'a>>, Box<Expr<'a>>),
    LessThan(Box<Expr<'a>>, Box<Expr<'a>>),
    GreaterThan(Box<Expr<'a>>, Box<Expr<'a>>),
    LessThanOrEqual(Box<Expr<'a>>, Box<Expr<'a>>),
    GreaterThanOrEqual(Box<Expr<'a>>, Box<Expr<'a>>),
    Equal(Box<Expr<'a>>, Box<Expr<'a>>),
    NotEqual(Box<Expr<'a>>, Box<Expr<'a>>),
    And(Box<Expr<'a>>, Box<Expr<'a>>),
    Or(Box<Expr<'a>>, Box<Expr<'a>>),
}

Variants

Bool(bool)

Num(f64)

Ident(Cow<'a, str>)

Neg(Box<Expr<'a>>)

Not(Box<Expr<'a>>)

Mul(Box<Expr<'a>>, Box<Expr<'a>>)

Div(Box<Expr<'a>>, Box<Expr<'a>>)

Add(Box<Expr<'a>>, Box<Expr<'a>>)

Sub(Box<Expr<'a>>, Box<Expr<'a>>)

LessThan(Box<Expr<'a>>, Box<Expr<'a>>)

GreaterThan(Box<Expr<'a>>, Box<Expr<'a>>)

LessThanOrEqual(Box<Expr<'a>>, Box<Expr<'a>>)

GreaterThanOrEqual(Box<Expr<'a>>, Box<Expr<'a>>)

Equal(Box<Expr<'a>>, Box<Expr<'a>>)

NotEqual(Box<Expr<'a>>, Box<Expr<'a>>)

And(Box<Expr<'a>>, Box<Expr<'a>>)

Or(Box<Expr<'a>>, Box<Expr<'a>>)

Implementations

impl<'a> Expr<'a>

pub fn simplify_without_ident(self) -> Result<Expr<'a>, EvalError>

pub fn simplify( self, lookup: impl Fn(Cow<'a, str>) -> Option<Expr<'a>>, ) -> Result<Expr<'a>, EvalError>

Trait Implementations

impl<'a> Clone for Expr<'a>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Expr<'a>

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

Formats the value using the given formatter.

impl<'de, 'a> Deserialize<'de> for Expr<'a>

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'a> PartialEq for Expr<'a>

fn eq(&self, other: &Expr<'a>) -> 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<'a> Serialize for Expr<'a>

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<'a> StructuralPartialEq for Expr<'a>