Struct syntax::ast::Expr

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

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An expression

Fields

id: NodeId

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node: ExprKind

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span: Span

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attrs: ThinVec<Attribute>

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Methods

impl Expr

pub fn returns(&self) -> bool

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

fn to_bound(&self) -> Option<GenericBound>

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pub(super) fn to_ty(     &self ) -> Option<P<Ty>>

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pub fn precedence(&self) -> ExprPrecedence

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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 Encodable for Expr

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

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impl Decodable for Expr

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

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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 mut [u8]

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

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

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

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impl RecoverQPath for Expr

fn to_ty(&self) -> Option<P<Ty>>

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fn to_recovered(&self, qself: Option<QSelf>, path: Path) -> Self

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fn to_string(&self) -> String

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const PATH_STYLE: PathStyle

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PATH_STYLE: PathStyle = PathStyle::Expr