Enum Expr 

pub enum Expr {
    Var(String),
    Array(Vec<Expr>),
    Index(Box<Expr>, Box<Expr>),
    Int(i32),
    Float(f32),
    String(String),
    Bool(bool),
    Call(Box<Expr>, Vec<Expr>),
    Unary(UnaryOp, Box<Expr>),
    Binary(Box<Expr>, Vec<(BinaryOp, Expr)>),
    Zero(Box<Type>),
}

A term that can be evaluated. Example: f("224")

Variants

Var(String)

A single variable. Example: x

Array(Vec<Expr>)

An array, union or struct. Example: { 1, 2, 3 }

Index(Box<Expr>, Box<Expr>)

Array indexing. Example: x[8]

Int(i32)

A single 32-bit integer. Example: 8

Float(f32)

A single-precision floating-point number. Example: 3.6

String(String)

A string literal. Example: "good"

Bool(bool)

A boolean literal. Example: false

Call(Box<Expr>, Vec<Expr>)

A function call. Example: f(x, y)

Unary(UnaryOp, Box<Expr>)

Application of unary operator. Example: !false, x++

Binary(Box<Expr>, Vec<(BinaryOp, Expr)>)

Application of binary operator. Example: a + b

Zero(Box<Type>)

Zero initializer. Example: zeroinitializer

Implementations

impl Expr

pub fn to_i32(&self) -> Result<i32>

pub fn to_f32(&self) -> Result<f32>

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 From<bool> for Expr

fn from(b: bool) -> Self

Converts to this type from the input type.

impl From<f32> for Expr

fn from(fl: f32) -> Self

Converts to this type from the input type.

impl From<i32> for Expr

fn from(i: i32) -> Self

Converts to this type from the input type.

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 StructuralPartialEq for Expr