Struct syn::ExprIfLet

pub struct ExprIfLet {
    pub attrs: Vec<Attribute>,
    pub if_token: If,
    pub let_token: Let,
    pub pats: Punctuated<Pat, Or>,
    pub eq_token: Eq,
    pub expr: Box<Expr>,
    pub then_branch: Block,
    pub else_branch: Option<(Else, Box<Expr>)>,
}

An if let expression with an optional else block: if let pat = expr { ... } else { ... }.

The else branch expression may only be an If, IfLet, or Block expression, not any of the other types of expression.

This type is available if Syn is built with the "full" feature.

Fields

attrs: Vec<Attribute>

if_token: If

let_token: Let

pats: Punctuated<Pat, Or>

eq_token: Eq

expr: Box<Expr>

then_branch: Block

else_branch: Option<(Else, Box<Expr>)>

Trait Implementations

impl Synom for ExprIfLet

fn parse(i: Cursor) -> PResult<Self>

fn description() -> Option<&'static str>

A short name of the type being parsed.

impl ToTokens for ExprIfLet

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

Write self to the given TokenStream.

fn into_token_stream(self) -> TokenStream

Convert self directly into a TokenStream object.

impl Debug for ExprIfLet

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

Formats the value using the given formatter.

impl Eq for ExprIfLet

impl PartialEq for ExprIfLet

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

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

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

This method tests for !=.

impl Hash for ExprIfLet

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 Clone for ExprIfLet

fn clone(&self) -> ExprIfLet

Returns a copy of the value.

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

Performs copy-assignment from source.

impl From<ExprIfLet> for Expr

fn from(e: ExprIfLet) -> Expr

Performs the conversion.