Enum Expr 

pub enum Expr {
    Literal(String),
    Number(f64),
    Unit {
        value: f64,
        unit: String,
    },
    Color(String),
    Variable(String),
    Binary {
        op: BinaryOp,
        left: Box<Expr>,
        right: Box<Expr>,
    },
    FunctionCall {
        name: String,
        args: Vec<Expr>,
    },
    Object(Vec<(String, Expr)>),
    Array(Vec<Expr>),
}

Expressions that can be evaluated

Variants

Literal(String)

String literal: “hello”

Number(f64)

Number: 42, 3.14

Unit

Number with unit: 16px, 2em, 50%

Fields

value: f64

unit: String

Color(String)

Color: #fff, #3498db

Variable(String)

Variable reference: primary-color

Binary

Binary operation: left op right

Fields

op: BinaryOp

left: Box<Expr>

right: Box<Expr>

FunctionCall

Function call: spacing(2)

Fields

name: String

args: Vec<Expr>

Object(Vec<(String, Expr)>)

Object/Map: { key: value, … }

Array(Vec<Expr>)

Array: [expr, expr, …]

Trait Implementations

impl Clone for Expr

fn clone(&self) -> Expr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Expr

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

Formats the value using the given formatter.

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

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Expr

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Expr