Struct TokenIter 

pub struct TokenIter { /* private fields */ }

A wrapper for TokenStream that allows for 1-token lookahead, and records the current and last Spans.

Implementations

impl TokenIter

pub fn from(ts: TokenStream, start_span: Span) -> Self

pub fn next(&mut self) -> Option<TokenTree>

Advance to the next token, and return Some(token) if present, otherwise return None and do not advance.

pub fn peek_next(&self) -> &Option<TokenTree>

pub fn cur_span(&self) -> &Span

The span of the last token from Self::next().

pub fn last_span(&self) -> &Option<Span>

The span of the last, last token found from Self::next().

pub fn extract_iter(self) -> IntoIter