Struct BoxTokenStream 

pub struct BoxTokenStream<'a> { /* private fields */ }

Token stream object-safe wrapper.

Implementations

impl<'a> BoxTokenStream<'a>

pub fn new<T: TokenStream + 'a>(token_stream: T) -> Self

Wrap a token stream.

pub fn with_error(self, error: impl Into<String>) -> Self

Attach an error that is returned before the first token.

pub fn try_next(&mut self) -> Result<Option<&Token>, String>

Return the next token or the deferred stream error.

Trait Implementations

impl<'a> Deref for BoxTokenStream<'a>

type Target = dyn TokenStream + 'a

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl DerefMut for BoxTokenStream<'_>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl TokenStream for BoxTokenStream<'_>

fn advance(&mut self) -> bool

Advance to the next token.

fn token(&self) -> &Token

Access the current token.

fn token_mut(&mut self) -> &mut Token

Mutate the current token.

fn next(&mut self) -> Option<&Token>

Iterate to the next token and return it.

fn process(&mut self, sink: &mut dyn FnMut(&Token))

Consume the remaining stream into the provided sink.