Struct rune::ast::ExprWhile

pub struct ExprWhile {
    pub attributes: Vec<Attribute>,
    pub label: Option<(Label, Colon)>,
    pub while_token: While,
    pub condition: Condition,
    pub body: Box<Block>,
}

A while loop: while [expr] { ... }.

Examples

use rune::{testing, ast};

testing::roundtrip::<ast::ExprWhile>("while x {}");
testing::roundtrip::<ast::ExprWhile>("'label: while x {}");
testing::roundtrip::<ast::ExprWhile>("#[attr] 'label: while x {}");

Fields

attributes: Vec<Attribute>

The attributes for the while loop

label: Option<(Label, Colon)>

A label for the while loop.

while_token: While

The while keyword.

condition: Condition

The name of the binding.

body: Box<Block>

The body of the while loop.

Implementations

impl ExprWhile

pub fn parse_with_meta(
    parser: &mut Parser<'_>,
    attributes: Vec<Attribute>,
    label: Option<(Label, Colon)>
) -> Result<Self, ParseError>

Parse #ident and attach the given meta

Trait Implementations

impl Clone for ExprWhile

fn clone(&self) -> ExprWhile

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExprWhile

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

Formats the value using the given formatter.

impl Eq for ExprWhile

impl Parse for ExprWhile

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

Parse the current item from the parser.

impl PartialEq<ExprWhile> for ExprWhile

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

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

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

This method tests for !=.

impl Spanned for ExprWhile

fn span(&self) -> Span

Get the span of the type.

impl StructuralEq for ExprWhile

impl StructuralPartialEq for ExprWhile

impl ToTokens for ExprWhile

fn to_tokens(&self, context: &MacroContext, stream: &mut TokenStream)

Turn the current item into tokens.