Struct rune::ast::ExprBlock

pub struct ExprBlock {
    pub attributes: Vec<Attribute>,
    pub async_token: Option<Async>,
    pub const_token: Option<Const>,
    pub move_token: Option<Move>,
    pub block: Block,
}

A block expression.

Examples

use rune::{testing, ast};

let expr = testing::roundtrip::<ast::ExprBlock>("async {}");
assert_eq!(expr.block.statements.len(), 0);

let expr = testing::roundtrip::<ast::ExprBlock>("async { 42 }");
assert_eq!(expr.block.statements.len(), 1);

let expr = testing::roundtrip::<ast::ExprBlock>("#[retry] async { 42 }");
assert_eq!(expr.block.statements.len(), 1);
assert_eq!(expr.attributes.len(), 1);

Fields

attributes: Vec<Attribute>

The attributes for the block.

async_token: Option<Async>

The optional async token.

const_token: Option<Const>

The optional const token.

move_token: Option<Move>

The optional move token.

block: Block

The close brace.

Implementations

impl ExprBlock

pub fn parse_with_meta(
    parser: &mut Parser<'_>,
    attributes: Vec<Attribute>,
    async_token: Option<Async>,
    const_token: Option<Const>,
    move_token: Option<Move>
) -> Result<Self, ParseError>

Parse #ident and attach the given meta

Trait Implementations

impl Clone for ExprBlock

fn clone(&self) -> ExprBlock

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExprBlock

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

Formats the value using the given formatter.

impl Eq for ExprBlock

impl Parse for ExprBlock

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

Parse the current item from the parser.

impl PartialEq<ExprBlock> for ExprBlock

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

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

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

This method tests for !=.

impl Spanned for ExprBlock

fn span(&self) -> Span

Get the span of the type.

impl StructuralEq for ExprBlock

impl StructuralPartialEq for ExprBlock

impl ToTokens for ExprBlock

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

Turn the current item into tokens.