Struct syntax::ast::Expr

pub struct Expr {
    pub id: NodeId,
    pub node: ExprKind,
    pub span: Span,
    pub attrs: ThinVec<Attribute>,
}

An expression

Fields

id: NodeId

node: ExprKind

span: Span

attrs: ThinVec<Attribute>

Methods

impl Expr

pub fn returns(&self) -> bool

Whether this expression would be valid somewhere that expects a value, for example, an if condition.

pub fn precedence(&self) -> ExprPrecedence

Trait Implementations

impl Clone for Expr

fn clone(&self) -> Expr

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq for Expr

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

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Expr) -> bool

This method tests for !=.

impl Eq for Expr

impl Encodable for Expr

fn encode<__S: Encoder>(&self, s: &mut __S) -> Result<(), __S::Error>

impl Decodable for Expr

fn decode<__D: Decoder>(d: &mut __D) -> Result<Expr, __D::Error>

impl Hash for Expr

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where     H: Hasher,

Feeds a slice of this type into the given [Hasher].

impl Debug for Expr

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

Formats the value using the given formatter.

impl HasAttrs for Expr

Important traits for &'a [u8]

impl<'a> Read for &'a [u8]impl<'a> Write for &'a mut [u8]

fn attrs(&self) -> &[Attribute]

fn map_attrs<F>(self, f: F) -> Self where     F: FnOnce(Vec<Attribute>) -> Vec<Attribute>,