Struct rune::ast::ExprMatch

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

A match expression.

Examples

use rune::{testing, ast};

testing::roundtrip::<ast::ExprMatch>("match 0 { _ => 1, }");
let expr = testing::roundtrip::<ast::ExprMatch>("#[jit(always)] match 0 { _ => 1, }");
assert_eq!(expr.attributes.len(), 1);

Fields

attributes: Vec<Attribute>

The attributes for the match expression

match_: Match

The match token.

expr: 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.

Implementations

impl ExprMatch

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

Parse the match expression attaching the given attributes

Trait Implementations

impl Clone for ExprMatch

fn clone(&self) -> ExprMatch

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExprMatch

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

Formats the value using the given formatter.

impl Eq for ExprMatch

impl Parse for ExprMatch

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

Parse the current item from the parser.

impl PartialEq<ExprMatch> for ExprMatch

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

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

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

This method tests for !=.

impl Spanned for ExprMatch

fn span(&self) -> Span

Get the span of the type.

impl StructuralEq for ExprMatch

impl StructuralPartialEq for ExprMatch

impl ToTokens for ExprMatch

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

Turn the current item into tokens.