Enum ValueExpr 

pub enum ValueExpr {
    Add(Box<ValueExpr>, Box<ValueExpr>),
    Subtract(Box<ValueExpr>, Box<ValueExpr>),
    Multiply(Box<ValueExpr>, Box<ValueExpr>),
    Divide(Box<ValueExpr>, Box<ValueExpr>),
    Modulo(Box<ValueExpr>, Box<ValueExpr>),
    UnaryPlus(Box<ValueExpr>),
    UnaryMinus(Box<ValueExpr>),
    Literal(ValueLiteral),
    Variable(String),
}

Value expressions - can only appear as operands to relational operators

Variants

Add(Box<ValueExpr>, Box<ValueExpr>)

Binary addition

Subtract(Box<ValueExpr>, Box<ValueExpr>)

Binary subtraction

Multiply(Box<ValueExpr>, Box<ValueExpr>)

Binary multiplication

Divide(Box<ValueExpr>, Box<ValueExpr>)

Binary division

Modulo(Box<ValueExpr>, Box<ValueExpr>)

Binary modulo

UnaryPlus(Box<ValueExpr>)

Unary plus

UnaryMinus(Box<ValueExpr>)

Unary minus (negation)

Literal(ValueLiteral)

Literal value

Variable(String)

Variable reference

Trait Implementations

impl Clone for ValueExpr

fn clone(&self) -> ValueExpr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ValueExpr

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

Formats the value using the given formatter.

impl Display for ValueExpr

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

Formats the value using the given formatter.

impl PartialEq for ValueExpr

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