Struct rune::ast::Label

pub struct Label {
    pub token: Token,
    pub source: StringSource,
}

A label, like 'foo

Fields

token: Token

The token of the label.

source: StringSource

The kind of the label.

Implementations

impl Label

pub fn new(label: &str) -> Self

Construct a new label from the given string. The string should be specified without the leading ', so "foo" instead of "'foo".

This constructor must only be used inside of a macro.

Panics

This will panic if it’s called outside of a macro context.

pub fn new_with(label: &str, span: Span, storage: &Storage) -> Self

Construct a new label from the given string. The string should be specified without the leading ', so "foo" instead of "'foo".

This constructor does not panic when called outside of a macro context but requires access to a span and storage.

Trait Implementations

impl Clone for Label

fn clone(&self) -> Label

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Label

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

Formats the value using the given formatter.

impl Parse for Label

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

Parse the current item from the parser.

impl PartialEq<Label> for Label

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

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

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

This method tests for !=.

impl Peek for Label

fn peek(p: &mut Peeker<'_>) -> bool

Peek the parser for the given token.

impl<'a> Resolve<'a> for Label

type Output = Cow<'a, str>

The output type being resolved into.

fn resolve(
    &self,
    storage: &Storage,
    source: &'a Source
) -> Result<Cow<'a, str>, ResolveError>

Resolve the value from parsed AST.

impl ResolveOwned for Label

type Owned = String

The output type being resolved into.

fn resolve_owned(
    &self,
    storage: &Storage,
    source: &Source
) -> Result<Self::Owned, ResolveError>

Resolve into an owned value.

impl Spanned for Label

fn span(&self) -> Span

Get the span of the type.

impl ToTokens for Label

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

Turn the current item into tokens.

impl Copy for Label

impl Eq for Label

impl StructuralEq for Label

impl StructuralPartialEq for Label