Struct ExprTry 

pub struct ExprTry {
    pub attrs: Vec<Attribute>,
    pub expr: Box<Expr>,
    pub question_token: Question,
}

A try-expression: expr?.

Fields

attrs: Vec<Attribute>

expr: Box<Expr>

question_token: Question

Trait Implementations

impl Clone for ExprTry

Available on crate feature full only.

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExprTry

Available on crate feature full only.

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

Formats the value using the given formatter.

impl From<ExprTry> for Expr

fn from(e: ExprTry) -> Expr

Converts to this type from the input type.

impl Hash for ExprTry

Available on crate feature full only.

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

where H: Hasher,

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Parse for ExprTry

Available on crate features full and printing only.

fn parse(input: ParseStream<'_>) -> Result<Self>

impl PartialEq for ExprTry

Available on crate feature full only.

fn eq(&self, other: &Self) -> 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 ToTokens for ExprTry

Available on crate feature full only.

fn to_tokens(&self, tokens: &mut TokenStream)

Write self to the given TokenStream.

fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object.

fn into_token_stream(self) -> TokenStream

where Self: Sized,

Convert self directly into a TokenStream object.

impl Eq for ExprTry

Available on crate feature full only.