Struct syn::Arm

pub struct Arm {
    pub attrs: Vec<Attribute>,
    pub pat: Pat,
    pub guard: Option<(If, Box<Expr>)>,
    pub fat_arrow_token: FatArrow,
    pub body: Box<Expr>,
    pub comma: Option<Comma>,
}

One arm of a match expression: 0..=10 => { return true; }.

As in:

match n {
    0..=10 => {
        return true;
    }
    // ...
}

Fields

attrs: Vec<Attribute>

pat: Pat

guard: Option<(If, Box<Expr>)>

fat_arrow_token: FatArrow

body: Box<Expr>

comma: Option<Comma>

Trait Implementations

impl Clone for Arm

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Arm

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

Formats the value using the given formatter.

impl Hash for Arm

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 Arm

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

impl PartialEq for Arm

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl ToTokens for Arm

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 Arm