Struct ExprMatch

#[non_exhaustive]
pub struct ExprMatch {
    pub attributes: Vec<Attribute>,
    pub match_: Match,
    pub expr: Box<Expr>,
    pub open: OpenBrace,
    pub branches: Vec<(ExprMatchBranch, Option<Comma>)>,
    pub close: CloseBrace,
}

A match expression.

• match <expr> { [arm]* }.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

attributes: Vec<Attribute>

The attributes for the match expression

match_: Match

The match token.

expr: Box<Expr>

The expression who’s result we match over.

open: OpenBrace

The open brace of the match.

branches: Vec<(ExprMatchBranch, Option<Comma>)>

Branches.

close: CloseBrace

The close brace of the match.

Trait Implementations

impl Debug for ExprMatch

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

Formats the value using the given formatter.

impl OptionSpanned for ExprMatch

fn option_span(&self) -> Option<Span>

Get the optional span of the type.

impl Parse for ExprMatch

fn parse(p: &mut Parser<'_>) -> Result<Self>

Parse the current item from the parser.

impl PartialEq for ExprMatch

fn eq(&self, other: &ExprMatch) -> 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 Spanned for ExprMatch

fn span(&self) -> Span

Get the span of the type.

impl ToTokens for ExprMatch

fn to_tokens( &self, context: &mut MacroContext<'_, '_, '_>, stream: &mut TokenStream, ) -> Result<()>

Turn the current item into tokens.

impl TryClone for ExprMatch

fn try_clone(&self) -> Result<Self>

Try to clone the current value, raising an allocation error if it’s unsuccessful.

fn try_clone_from(&mut self, source: &Self) -> Result<(), Error>

Performs copy-assignment from source.

impl Eq for ExprMatch

impl StructuralPartialEq for ExprMatch