Struct rustc_parse::parser::TokenCursor

source ·

struct TokenCursor {
    tree_cursor: TokenTreeCursor,
    stack: Vec<(TokenTreeCursor, DelimSpan, DelimSpacing, Delimiter)>,
}

Expand description

Iterator over a TokenStream that produces Tokens. It’s a bit odd that we (a) lex tokens into a nice tree structure (TokenStream), and then (b) use this type to emit them as a linear sequence. But a linear sequence is what the parser expects, for the most part.

Fields§

§tree_cursor: TokenTreeCursor§stack: Vec<(TokenTreeCursor, DelimSpan, DelimSpacing, Delimiter)>

Struct rustc_parse::parser::TokenCursor

Fields§

Implementations§

impl TokenCursor

fn next(&mut self) -> (Token, Spacing)

fn inlined_next(&mut self) -> (Token, Spacing)

Trait Implementations§

impl Clone for TokenCursor

fn clone(&self) -> TokenCursor

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

Auto Trait Implementations§

impl DynSend for TokenCursor

impl DynSync for TokenCursor

impl Freeze for TokenCursor

impl !RefUnwindSafe for TokenCursor

impl !Send for TokenCursor

impl !Sync for TokenCursor

impl Unpin for TokenCursor

impl !UnwindSafe for TokenCursor

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

impl<T> Borrow<T> for T
where T: ?Sized,

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

impl<T, U> Into<U> for T
where U: From<T>,

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where T: Clone,

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where U: Into<T>,

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where U: TryFrom<T>,

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

impl<'a, T> Captures<'a> for T
where T: ?Sized,

impl<T> ErasedDestructor for T
where T: 'static,