Struct ExprBreak

#[non_exhaustive]
pub struct ExprBreak {
    pub attributes: Vec<Attribute>,
    pub break_token: Break,
    pub label: Option<Label>,
    pub expr: Option<Box<Expr>>,
}

A break expression.

• break [expr].

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 of the break expression

break_token: Break

The return token.

label: Option<Label>

A label to break to.

expr: Option<Box<Expr>>

An expression to break with.

Implementations

impl ExprBreak

pub fn parse_with_meta( parser: &mut Parser<'_>, attributes: Vec<Attribute>, ) -> Result<Self, Error>

Parse #ident and attach the given meta

Trait Implementations

impl Debug for ExprBreak

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

Formats the value using the given formatter.

impl OptionSpanned for ExprBreak

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

Get the optional span of the type.

impl Parse for ExprBreak

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

Parse the current item from the parser.

impl PartialEq for ExprBreak

fn eq(&self, other: &ExprBreak) -> 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 ExprBreak

fn span(&self) -> Span

Get the span of the type.

impl ToTokens for ExprBreak

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

Turn the current item into tokens.

impl TryClone for ExprBreak

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 ExprBreak

impl StructuralPartialEq for ExprBreak